hi guys, I hope you can help.. I really googled a lot about this, and also made many tests on my phone and waste a lot of time, but couldn't find a solution yet.. also this seems to be affecting many other people, so I don't understand how is possible nobody found a fix for that until now..
(I'm posting in general section because this seems to affect any kind of phones running cm10.1 + gapps)
the problem is that if I go to manage apps > running apps, I see Media process (DownloadService) always running! that could drain my battery and/or download data, in any case I don't see a point in having it always running, so I would like to get rid of it!
what I discovered so far is that the process is related to both gapps and Downloadprovider.apk package included in any CM10.1 build, in fact:
1. the process starts appearing only after installing the gapps (I use a very minimal 4.2 gapps package, about 10mb only)
2. if I delete Downloadprovider.apk package from /System/App, the process doesn't appear anymore
The problem is that if I delete the Downloadprovider.apk package then I start getting gapps related FC's and phone becomes unstable (and very probably will not be possible to download anymore things from the browser and/or play store)!
So what could I do to safely get rid of that process? Maybe disable or freeze some other apps/processes? But I wouldn't know what to disable exactly..
guys please help me I am really getting crazy with that! also that could help many other people :good:
thanks a lot in advance
EDIT: maybe it was related to Maps since I installed maps 7.x I don't see that process anymore!
moly82 said:
hi guys, I hope you can help.. I really googled a lot about this, and also made many tests on my phone and waste a lot of time, but couldn't find a solution yet.. also this seems to be affecting many other people, so I don't understand how is possible nobody found a fix for that until now..
(I'm posting in general section because this seems to affect any kind of phones running cm10.1 + gapps)
the problem is that if I go to manage apps > running apps, I see Media process (DownloadService) always running! that could drain my battery and/or download data, in any case I don't see a point in having it always running, so I would like to get rid of it!
what I discovered so far is that the process is related to both gapps and Downloadprovider.apk package included in any CM10.1 build, in fact:
1. the process starts appearing only after installing the gapps (I use a very minimal 4.2 gapps package, about 10mb only)
2. if I delete Downloadprovider.apk package from /System/App, the process doesn't appear anymore
The problem is that if I delete the Downloadprovider.apk package then I start getting gapps related FC's and phone becomes unstable (and very probably will not be possible to download anymore things from the browser and/or play store)!
So what could I do to safely get rid of that process? Maybe disable or freeze some other apps/processes? But I wouldn't know what to disable exactly..
guys please help me I am really getting crazy with that! also that could help many other people :good:
thanks a lot in advance
Click to expand...
Click to collapse
Maybe you have some program/app installed which uses the download manager? Some app trying to download an update outside of the regular mechanism? I don't see DownloadService running on my phone unless I instructed it to download something. Do you notice anything downloadmanager/media related in logcat? If in doubt, attach the phone to a PC, run the following commands and attach the resulting file ('attach_me.txt') here:
Code:
adb shell 'ps; echo -----------;logcat -v time -b main -b system -b events -d;echo -----------;dumpsys;' > attach_me.txt
Use the full path to adb if you need to.
This shows the currently running processes (ps), the contents of the main, system and event logs (logcat) and a snapshot of the current state of your phone (dumpsys). If there is anything there you don't want to show to the whole world edit the resulting file before attaching it here.
thanks a lot for the reply my friend
tonight at home I think I will be able to run the adb command you suggested me (in my home computer I have sdk installed)
so far I checked logcat in terminal ("logcat |grep edia" and "logcat |grep ownload") and this is what I got:
$ su
# logcat |grep edia
D/Vold ( 1197): Volume sdcard state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 1197): Volume sdcard state changing 0 (No-Media) -> 2 (Pending)
W/PackageParser( 1626): No actions in intent filter at /data/app/org.wikipedia-1.apk Binary XML file line #39
I/ActivityManager( 1626): Start proc android.process.media for broadcast com.android.providers.media/.MtpReceiver: pid=1765 uid=10011 gids={50011, 1015, 1023, 1024, 1028, 2001, 3003, 3007}
V/ActivityThread( 1765): android.process.media white listed for hwui
D/SystemUIService( 1701): loading: class com.android.systemui.media.RingtonePlayer
D/SystemUIService( 1701): running: [email protected]
W/ContextImpl( 1626): Calling a method in the system process without a qualified user: android.app.ContextImpl.bindService:1458 android.bluetooth.BluetoothHeadset.:273 android.bluetooth.BluetoothAdapter.getProfileProxy:1155 android.media.AudioService.getBluetoothHeadset:2198 android.media.AudioService.access$2800:104
W/ContextImpl( 1626): Calling a method in the system process without a qualified user: android.app.ContextImpl.bindService:1458 android.bluetooth.BluetoothA2dp.:160 android.bluetooth.BluetoothAdapter.getProfileProxy:1158 android.media.AudioService$AudioServiceBroadcastReceiver.onReceive:4087 android.app.LoadedApk$ReceiverDispatcher$Args.run:758
$ su
# logcat|grep ownload
I/ActivityManager( 1624): Start proc com.google.android.youtube for broadcast com.google.android.youtube/.core.transfer.DownloadService$BootReceiver: pid=2305 uid=10050 gids={50050, 3003, 1015, 1006, 1028}
W/ActivityManager( 1624): No content provider found for permission revoke: file:///data/data/com.android.providers.downloads/cache/downloadfile.apk
W/ActivityManager( 1624): No content provider found for permission revoke: file:///data/data/com.android.providers.downloads/cache/downloadfile.apk
I'm attaching also screenshots of the process I'm talking about
EDIT: I reinstalled everyting from scratch as a new build by quarx came out.. it seems that installing only cm build + minimal gapps, that process doesn't show up. Later after I installed back all my apps (via app2zip flashable zip) the process showed up again.. so probably you are right and there is a certain app using that process.. but how can I understand which one has relation with that service? maybe YouTube as i see it mentioned in logcat?
delete
i could generate the logs you asked without using the pc but using the phone terminal and multiple commands.. i'm uploading them to my dropbox links are below thanks in advance..
http://db.tt/gJLBYeT7
http://db.tt/OahQ8Zf7
http://db.tt/KPUTy4et
YAFU what happened to you?
it seems to me after I installed latest maps 7.x the media > download process is not appearing anymore in running processes.. maybe it was related to sh*tty maps??? :fingers-crossed:
Hello, I was given a Gtablet by a friend. Everything is in proper working order except for the wifi. The wifi will endlessly scan, never pulling up any SSIDs. Here's what I've done to troubleshoot:
Ascertained flight mode was off (it was)
Enabled wifi through the developer options (Did nothing)
Manually enter SSID/Security information (Claims that SSID is not in range)
Reloaded the OS (He had VEGAn Tab on there. I reloaded the 5.1 Beta. I don't know what version he had on there, oops.)
After a clean install I have the exact same issue, which leads me to believe it is a hardware issue rather than a software issue. Is this common? Am I forgetting something? Would loading an entirely different ROM be of any use or do they also use the same driver?
My apologies if this has been answered previously, but in all my searching I can only find people who have this problem temporarily; a reboot fixes it for them. I haven't been able to find someone who has had this as a persistent issue.
JungleWallace said:
Hello, I was given a Gtablet by a friend. Everything is in proper working order except for the wifi. The wifi will endlessly scan, never pulling up any SSIDs.
Click to expand...
Click to collapse
I'll have to look at some logs to ascertain what your WiFi problem is.
Run the commands in this post (after rebooting the tablet) and then post the text files that're created.
rajeevvp said:
I'll have to look at some logs to ascertain what your WiFi problem is.
Click to expand...
Click to collapse
Thanks, see attached are the logs as per request. As a side note, now that I have the terminal emulator on there I tried a few commands I dug up on the internet after I looked over the logs.
Code:
$ su
# ifconfig tiwlan0 up
# ifconfig eth0 up
Both gave an error message
Code:
error: SIOCGIFFLAGS (No such device)
Also
Code:
# svc wifi enable
did not solve my issues. Oh well.
FYI:
JungleWallace said:
...I tried a few commands I dug up on the internet after I looked over the logs.
Code:
$ su
# ifconfig tiwlan0 up
# ifconfig eth0 up
Both gave an error message
Code:
error: SIOCGIFFLAGS (No such device)
Click to expand...
Click to collapse
The wireless LAN interface name on the gTab is wlan0. Hence your error messages: "No such device" for the ifnames tiwlan0 and eth0. (The latter would work for the ethernet I/F on the dock--if you had one connected.)
Also
Code:
# svc wifi enable
did not solve my issues. Oh well.
Click to expand...
Click to collapse
1. You have to look at the Android system logs (using logcat) to see the result of that svc command.
2. Your Android logs indicate that your WiFi interface is a) disabled at startup and b) then not enabled thereafter:
Code:
01-07 23:21:10.429 V/ConnectivityService( 990): Starting Wifi Service.
01-07 23:21:10.429 I/WifiService( 990): WifiService starting up with Wi-Fi [B]disabled[/B]
Suggestions:
Since this now looks like a ROM problem (ie. not HW):
1. See this thread. Run the script to disable Airplane Mode which might be causing your problem. If that doesn't work, try step 2:
2. Boot into CWM and then a) Format /cache and b) Repartition the Internal SD card (take the external one out first).
You'll lose all your current apps and data with this step, essentially reverting to a "fresh" install of your ROM.
Re-setup WiFi, time & date and other things again.
If step 2. doesn't work, report back next year, and I'll give you more commands to run then.
rajeevvp said:
If step 2. doesn't work, report back next year, and I'll give you more commands to run then.
Click to expand...
Click to collapse
Negative. Ran the airplane fix script, nothing. Reset cache/re-partitioned, still nothing. It's still endlessly scanning/shutting off/scanning.
JungleWallace said:
Negative. Ran the airplane fix script, nothing. Reset cache/re-partitioned, still nothing.
Click to expand...
Click to collapse
OK. Not one of the common simple problems, then.
It's still endlessly scanning/shutting off/scanning.
Click to expand...
Click to collapse
This is puzzling because from your last logs, it doesn't look like the wlan kernel driver was even loaded, so no AP scanning should be possible. A little background will clarify what I mean.
On all the 2.6.32.x kernels for the gTablet, the wlan driver is not compiled into the kernel. Instead, it is built as a separate kernel module which is loaded and unloaded as needed by Android (from the files in /system/lib/hw/wlan/). When the wlan driver is loaded both the kernel (dmesg) and Android (logcat) will show some characteristic messages and until the driver is inserted into the kernel no AP scanning, or other wireless functions, should be possible. And, no wlan driver-related messages in your logs tells me that the driver was likely not loaded. (Also, only after the wlan driver is loaded does it check and initialize the wireless HW. So, only after its been loaded, strictly speaking, can we rule out a HW problem.)
Sometimes the Android logs are not complete, so I want to you setup ADB on your PC, enable USB debugging on the gTablet (Setting > Applications > Development) and collect the Android logs like this from now on:
1. Power off gTab; attach the USB cable to it.
2. Open a CMD.exe window on the PC, then run this command (and keep the window minimized):
Code:
C:\> [B]adb logcat -v time > logcat.txt[/B]
After all the tests/commands have been done, restore this window and press Ctrl-C to kill ADB and terminate Android log collection.
3. Power on the gTablet. The ADB command will wait for the gTablet and keep collecting logs on the PC.
Post also the output of these commands:
Code:
C:\> [B]adb shell dmesg > dmesg.txt[/B]
C:\> [B]adb shell lsmod > lsmod.txt[/B]
C:\> [B]adb shell "cd /; find system -type f -print0 | xargs -0 sha1sum" > sha1sum.txt[/B]
Is this the ROM you currently have?
Have you applied the VEGAn 1.00 beta 5.1.1 supplement also?
rajeevvp said:
OK. Not one of the common simple problems, then.
.........
Is this the ROM you currently have?
Have you applied the VEGAn 1.00 beta 5.1.1 supplement also?
Click to expand...
Click to collapse
That was the current ROM I was using. I had not applied the supplement yet, but now I have. Still the same issue. Here are the logs.
JungleWallace said:
That was the current ROM I was using. I had not applied the supplement yet, but now I have. Still the same issue. Here are the logs.
Click to expand...
Click to collapse
In this one I can see the kernel WiFi driver being loaded, and the driver is not reporting any HW chip, SDIO bus, or other errors:
Code:
<4>[ 23.485281] sdio_reset_comm():
<4>[ 23.503617] DHD: dongle ram size is set to 294912(orig 294912)
<4>[ 23.676913] Firmware version = wl0: May 17 2010 22:38:50 version 4.218.223.1
<4>[ 23.887647] wlan0: Broadcom Dongle Host Driver mac=e0:2a:82:08:3e:81
<4>[ 23.894047] Enter wl_control_wl_start
<4>[ 23.897864] Exited wl_control_wl_start
<4>[ 23.907103]
<4>[ 23.907109] Dongle Host Driver, version 4.218.223.1
As far as the kernel driver is concrned, everything looks OK, but the Android logs still don't show any SSID associations.
What're the exact outputs of these commands? (You can post a screenshot. Mask the psk= value from the 1st output, if present)
Code:
C:\> [B]adb shell "fgrep -v '#' /data/misc/wifi/wpa_supplicant.conf | tr -s '\n'"[/B]
ctrl_interface=wlan0
update_config=1
...
C:\> [B]adb shell wpa_cli -i wlan0 driver rssi[/B]
...
C:\> [B]adb shell wpa_cli -i wlan0 driver linkspeed[/B]
LinkSpeed [I]nn[/I]
C:\> [B]adb shell wpa_cli -i wlan0 scan[/B]
OK
C:\> [B]adb shell wpa_cli -i wlan0 scan_results[/B]
bssid / frequency / signal level / flags / ssid
aa:bb:cc:dd:ee:ff 2452 185 [WPA2-PSK-CCMP] [I]YourSSID[/I]
Collect also the dmesg and logcat outputs as before.
[/FONT]
rajeevvp said:
What're the exact outputs of these commands? (You can post a screenshot. Mask the psk= value from the 1st output, if present) [...] Collect also the dmesg and logcat outputs as before.
Click to expand...
Click to collapse
See attached. Ignore my syntax errors that I underlined. I was typing wlan instead of wlan0.
JungleWallace said:
Ignore my syntax errors that I underlined. I was typing wlan instead of wlan0.
Click to expand...
Click to collapse
Those are OK since you've corrected them. But, these commands you'll have to redo:
1. In the first command (fgrep ... | tr), you've typed a '/' (forward slash) instead of what I've given in the example, which is a '\' (back-slash) character.
The correct character will remove all those blank lines. But, this is a minor typo compared to:
2. The last 2 commands (wpa_cli scan* ...), which you'll have to redo. This time without the extraneous driver argument (again, see the example)--which turns it into a completely different (and non-existent) command. This is why the output doesn't look like what I've shown.
Instead of typing the commands in manually, select and copy the command lines from the browser and paste them into the shell window.
You might also want to increase the no. of columns that CMD.exe displays: Right-click on the title-bar; choose Properties; select Layout; increase the no. of Columns to, let's say, 150.
3. That dmesg.txt file is not very useful because you've not rebooted the tablet before issuing that command.
The kernel has a fixed-size message buffer, so all the HW initialization messages printed only at system boot will be overwritten by later, and irrelevent, messages as time passes. From the timestamps, it looks like your tablet's been on for a couple of weeks, at least--I can't see any of the earlier boot-up messages.
Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
I would like to know it too. Anyone?
Sneets said:
Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
Click to expand...
Click to collapse
Run a tiny web server like lighttpd in the shell on a weird port, restrict to localhost. Set up index.php to run system (whatever);
Then bookmark the 127.0.0.1: xxxx URL
Which system call invokes power_dbus_suspend?
Thanks Parrotgeek1. Working off your excellent suggestion I installed a lightweight local server on ChromeOS (Web Server for Chrome with the 200 OK! icon) and built a small framework app that is served from local storage. I'm all set up to call chrome.app.??? from my JavaScript. Which API provides the power_dbus_suspend capability? I looked through the Power and System APIs and I don't see anything. - Thanks!
Sneets said:
Hey everyone,
I am looking for a way to activate sleep mode of my chromebook manually in order to save battery without having to log out or power off all the time (it's connected to an external display, so closing the lid doesn't trigger it).
So far I found out that calling "powerd_dbus_suspend" from the shell does the trick, but as you can imagine, using the shell and actually typing the command every time is not really a solution.
Is there a way to create a chrome os app that executes this program call, so I can put it in my shelf and just click it to activate sleep?
I'm not really good at .json, maybe there's a way? Or any other suggestions?
Thanks alot!
Markus
Click to expand...
Click to collapse
Have you tried this simple extension? Keep Awake
https://chrome.google.com/webstore/...lb?utm_source=chrome-app-launcher-info-dialog
What I do is have the shell tab pinned, and press [up arrow] for the command then hit [enter]. Probably not ideal if you use the shell a lot as you have to step through recently used commands.
Re: Pkt_Lnt's post
Thanks Pkt_Lnt. That app only deals with disabling the normal sleep behavior, not causing it, and in particular not causing it when an external monitor is connected. I'm looking for something like Sneets has requested, to invoke a powerd_dbus_suspend command that will force the system to sleep (and turn off an external monitor). Per Parrotgeek1's comment, I've got a little app now sitting on the shelf that is all set to call some system command to invoke powerd_dbus_suspend, only I'm looking for what command to call, from JavaScript.
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
This method might be overkill somewhat, but, anyway, what I did was as follows:
Installed Secure Shell extension; setup sshd on the Chromebook (by making a symlink in /etc/init/ pointing to /usr/share/chromeos-ssh-config/init/openssh-server-conf); rebooted; added public key from ConnectBot (Android app) to ~/.ssh/authorized_keys in order to test connection; setup Android homescreen shortcut to send shell command; created profile in Secure Shell app on Chromebook to connect to [email protected]/my local IP address; generated keys on Chromebook (in ~/.ssh); added generated public key to ~/.ssh/authorized_keys; imported newly-generated private/public key pair within Secure Shell app (one by one); created bookmark link to [email protected] profile in shelf, and, finally, added required command to profile in Secure Shell.
It works well! It looks like any command can be added to the 'Arguments' field in Secure Shell, with the syntax:
Code:
-- thecommand
Although I guess commands that need sudo would require a connection to [email protected], instead of chronos. (-t argument lets you use sudo, but then sending a line break/ENTER seems to be needed)
The window opened with the click does hang around - I haven't figured out if it's possible to avoid this - but it does at least seem to persistently remember the size and position to which it's set.
I posted up some further details at http://nolirium.blogspot.com/shell-command-shelf-shortcut-chromeos.html
Impressive! But a bit more than I'm looking to do
@Nolirum - I read your blogspot doc and your procedure's pretty impressive. Frankly it's a little beyond me and beyond what I'm looking for. If you ever run across a way to invoke powerd_dbus_suspend a little more directly please post here as well. You clearly have a strong grasp of the issues!
Nolirum said:
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
This method might be overkill somewhat, but, anyway, what I did was as follows:
Installed Secure Shell extension; setup sshd on the Chromebook (by making a symlink in /etc/init/ pointing to /usr/share/chromeos-ssh-config/init/openssh-server-conf); rebooted; added public key from ConnectBot (Android app) to ~/.ssh/authorized_keys in order to test connection; setup Android homescreen shortcut to send shell command; created profile in Secure Shell app on Chromebook to connect to [email protected]/my local IP address; generated keys on Chromebook (in ~/.ssh); added generated public key to ~/.ssh/authorized_keys; imported newly-generated private/public key pair within Secure Shell app (one by one); created bookmark link to [email protected] profile in shelf, and, finally, added required command to profile in Secure Shell.
It works well! It looks like any command can be added to the 'Arguments' field in Secure Shell, with the syntax:
Code:
-- thecommand
Although I guess commands that need sudo would require a connection to [email protected], instead of chronos. (-t argument lets you use sudo, but then sending a line break/ENTER seems to be needed)
The window opened with the click does hang around - I haven't figured out if it's possible to avoid this - but it does at least seem to persistently remember the size and position to which it's set.
Click to expand...
Click to collapse
This really is impressive! Thanks for the extremely detailed explanation.
I was able to follow along completely and get the SSH argument "powerd_dbus_suspend" working.
However, I got to thinking. I was wondering if this could be extended to use an alias stored in ~/.bashrc?
After doing some research of my own and using various parameters and arguments, I was unsuccessful.
The goal is to have a linux app (through crouton) be run using xiwi with just a single bookmark by utilizing an alias.
Any thoughts?
UPDATE:
Of course just a few moments later I figured this out! Rather than dealing with an alias stored in ~/.bashrc and ensuring ssh had access, typing the entire alias command as an argument worked. Now I can run Steam directly from a shelf bookmark. All it took was replacing "powerd_dbus_suspend" with "-- sudo enter-chroot xiwi steam" in the argument.
Thanks again!
DandyRandyMarsh said:
This really is impressive! Thanks for the extremely detailed explanation.
I was able to follow along completely and get the SSH argument "powerd_dbus_suspend" working.
Click to expand...
Click to collapse
No problem! I think it's perhaps overly detailed if anything. Might be easier to follow if I cut it down a bit.
DandyRandyMarsh said:
Now I can run Steam directly from a shelf bookmark. All it took was replacing "powerd_dbus_suspend" with "-- sudo enter-chroot xiwi steam" in the argument.
Click to expand...
Click to collapse
Nice!
Adding crouton single app shortcuts is a cool idea which I hadn't considered. Does it work OK for you with sudo in the command, even straight after booting up? ...You didn't have to setup sudoing without a password via sudoers.d or anything?
Inspired by your post I added xiwi to my chroot to try it out. I seem to remember experiencing quite unbearable lag and slowness when running a full desktop via xiwi in the past, but with single apps there doesn't seem to be any noticeable performance hit (this is on an armv7 Asus Flip, with the chroot on a slooow USB drive).
In order to not have to enter my sudo password, in the argument I put:
Code:
-t -- echo mypassword | sudo -S sh /media/removable/3/bin/enter-chroot xiwi firefox
Maybe I'm missing something? Is there a better way, perhaps?
Anyway, since I have rootfs verification switched off, I also tried saving a similar command to a file in /usr/bin, and putting the filename in the argument instead. This works, too, and I suppose could potentially be useful e.g. in the case of needing to run a more convoluted sequence of commands with a shortcut.
Nolirum said:
Adding crouton single app shortcuts is a cool idea which I hadn't considered. Does it work OK for you with sudo in the command, even straight after booting up? ...You didn't have to setup sudoing without a password via sudoers.d or anything?
Click to expand...
Click to collapse
I'm not entirely familiar with exactly how my process worked, but I do not have any sudo password required within shell.
Here's the list of steps I followed allowing me to use sudo commands in the SSH Arguments box.
As a side note, this is the crouton installation I am running on an ASUS c302.
sudo sh ~/Downloads/crouton -r trusty -t unity,touch,xiwi,extension
Setup Bookmarks that Run Shell Commands
1. Installed Secure Shell extension
2. Open crosh with Ctrl+Atl+T
3. Enter Command: shell
4. Enter Command: sudo su -
5. Enter Command: sudo /usr/share/vboot/bin/make_dev_ssd.sh --force --remove_rootfs_verification
6. Enter Command: reboot
7. Let Chrome OS reboot
8. Open crosh with Ctrl+Atl+T
9. Enter Command: shell
10. Enter Command: sudo su -
11. Enter Command: mount –o remount rw /
12. Close current crosh window
13. Open a new crosh with Ctrl+Atl+T
14. Enter Command: shell
15. Enter Command: sudo ln -s /usr/share/chromeos-ssh-config/init/openssh-server.conf /etc/init/openssh-server.conf
16. Enter Command: sudo initctl reload-configuration
17. Enter Command: sudo initctl start openssh-server
18. Enter Command: cd ~/.ssh/
19. Enter Command: ssh-keygen
“Enter file in which…” *LEAVE BLANK*
“Enter passphrase” *LEAVE BLANK*
“Enter same passphrase” * LEAVE BLANK*20. Enter Command: cat /home/chronos/user/.ssh/id_rsa.pub >> /home/chronos/user/.ssh/authorized_keys
21. Enter Command: cp -a /home/chronos/user/.ssh/id_rsa* /home/chronos/user/Downloads
22. Close current crosh terminal and open Secure Shell extension
23. Select [New Connection]
24. Click Import… and select “id_rsa”
25. Click Import… again and select “id_rsa.pub”
26. Enter chronos as the username and localhost as the hostname
27. Enter a shorthand name replacing the text in the top cell “[email protected]”
28. Click Enter. If prompted, enter “yes” to continue connecting
29. Bookmark the page that is open which should end in, "#profile-id:_ _ _ _"
DONE. Now time to add some commands to automate.
Open Secure Shell and select the connection created. In the arguments box, start with two dashes -- and follow it your desired shell command.
Examples:
-- sudo startunity
-- sudo startgnome
-- sudo enter-chroot xiwi steam
-- sudo enter-chroot xiwi wine microWord
Next Steps... Getting Custom Shelf Icons
Now here I am running into some issues. Rather than have all these icons be the same, I was hoping to customize them.
Followed a strategy found on reddit, Change Shelf Icon for Website, but this only works if the site already had an "apple-touch-icon" set. Also, tried to inject the entire code myself which I couldn't get to work. Unfortunately, I think that since this bookmark is created from a Secure Shell, there are some issues.
I have already tried adding in code for this into the site, but it is having no effect. If someone could make this work then we're really looking good here.
DandyRandyMarsh said:
I'm not entirely familiar with exactly how my process worked, but I do not have any sudo password required within shell.
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Oh, I see what you mean. You are saying that you can sudo in the shell generally, without being prompted for a password, right?
Was that the default setup on your CB (after switching to Dev mode)? Or did you have to configure it manually for passwordless sudoing...
DandyRandyMarsh said:
Here's the list of steps I followed allowing me to use sudo commands in the SSH Arguments box.
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Nice work summarizing the steps. :highfive: It's probably easier to follow, listed out like that. One slight addendum, perhaps - at step 29, it might be good to clarify the "add to shelf" procedure. Especially because of the following...
DandyRandyMarsh said:
Next Steps... Getting Custom Shelf Icon
Now here I am running into some issues. Rather than have all these icons be the same, I was hoping to customize them.
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Click to collapse
Happily it turns out that, when you add shortcuts to the shelf on Chrome OS like this, a minimal app is created for each one, with its own manifest.json, and icon.pngs. Our shell shortcuts were getting created with blank pngs by default (the black box with P in the center).
So, all we need to do, is get some icons, find the right folder for our shelf shortcut apps, then copy our new icons into them!
For instance, here's how I made a nice shiny icon for my single app shelf shortcut to Firefox.
Prepared icons:
Created a temporary folder in ~/Downloads to store downloaded icons.
Prepared a set of icons in ~/Downloads/firefox. (I downloaded mine from findicons.com).
Six sizes are required - from 32px to 256. To avoid any manifest editing, saved them as *size*.png
e.g. 32.png; 48.png; 64.png; 96.png; 128.png; 256.png
Located folder to copy icons to:
It is easiest to do this directly after clicking "add to shelf"
EITHER:
To change dir into the most recently modified extension icon subfolder automatically, the following one-liner worked for me*.
Code:
shell
cd ~/Extensions/&&cd $(ls -v1td */ | head -1)/*/icons&&ls
A list of blank icons (*.png) should be visible. If so, the new icons can simply be copied over these, e.g..
Code:
sudo cp ~/Downloads/firefox/* .
*YMMV with this particular one-liner - sometimes there's an extra 'temp' folder in ~/Extensions, which stops it working as expected. If you get an error after running the command, simply use the slightly more manual method to locate the folder, as detailed below.
OR:
(slightly more manual method).
Code:
shell
ls -ltr ~/Extensions
Checked the date/times - the most recently added folder is at the bottom. Then,
Code:
cd themostrecentlyaddedfolder
(or, the folder modified at the date/time that the shortcut was "added to shelf"). Then,
Code:
cd */icons
ls
sudo cp ~/Downloads/firefox/* .
I then repeated the above with a new SSH argument and a set of Ubuntu icons, for a custom startxfce4 shortcut, too.
Then just did sudo restart ui, and enjoyed the shiny new shelf icons!
I am hopeful that these changes will get picked up by CrOS's sync, thus getting backed-up and restored automatically. At this point I am not sure if that will be the case, but I don't see why it wouldn't.
Another way?
Another way to approach this, since you're modifying system stuff anyway, might be to edit crosh at /usr/bin/crosh. It's a regular ol' dash/bash shell program, and you can create a shortcut to it on the shelf by opening crosh (ctrl-alt-T), then right click the top right of the browser and select More Tools --> Add to shelf...
Clicking the newly-created link (which looks like an "N") will launch /usr/bin/crosh in a tab. Changing the default behavior of /usr/bin/crosh could accomplish your goal to do whatever you want. With some experimenting, you might even be able to pass arguments to make it do different things depending on how it's opened (via ALT-CTRL-T vs from the shelf-- dunno if it can read the url used to call crosh), but at the very least you could do something like have it run whatever you want it to run if a second modifier key is held down (or if it isn't...), otherwise return to normal operation. A menu w/1 sec timeout could do this as well, ie--
Doing [THE THING YOU WANT] in 2 seconds (press SPACE for crosh)... /
Note there's no proof-of-concept here. Just throwing it out as an idea that I'm pretty sure would work... Someone might even create a neat extension that allows crosh to use scripts/plugins to execute different system operations beyond the stock ones that are built-in via single-clicks... If it worked, it might be a little simplier than via the SSH extension and you wouldn't have to run any extra daemons.
ft
This is probably harder, but a third way, which probably is the "right" way is to see how the crosh extension works and learn about opening the hterm.Terminal instance chrome.terminalprivate object directly, sending it output, and closing it in the same way crosh does it. There's a file in the crosh extension at js/crosh.js that shows the basics of how it's done:
var terminal = new hterm.Terminal(profileName);
And then you can do stuff with it. You could then create an extension that could handle multiple shelf-icons (say by appending ?COMMAND=ls to the URL to do different shell commands(. The security implications for this would probably be huge obviously.
Update: More on embedding hterm is here.
Nolirum said:
I managed to find a way to do something similar with the Secure Shell app. During the process of figuring it out, I also found that I was able to create a homescreen shortcut on my Android tablet which when tapped sends a shell command to the Chromebook.
I posted up some further details at http://nolirium.blogspot.com/shell-command-shelf-shortcut-chromeos.html
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Nice post - Some good food for thought, changing up the contents of crosh etc directly is an interesting idea.
fattire said:
Another way to approach this, since you're modifying system stuff anyway, might be to edit crosh at /usr/bin/crosh. It's a regular ol' dash/bash shell program, and you can create a shortcut to it on the shelf by opening crosh (ctrl-alt-T), then right click the top right of the browser and select More Tools --> Add to shelf...
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Click to collapse
Interesting! ....Aaaaand, now I've broken crosh. lol. Lucky I had my SSH shortcut setup... (actually, we can still get into the VTs with CtrlAltF2 etc anyway).
Some good potential for experimentation with this, definitely.
fattire said:
This is probably harder, but a third way, which probably is the "right" way is to see how the crosh extension works and learn about opening the hterm.Terminal instance chrome.terminalprivate object directly, sending it output, and closing it in the same way crosh does it. There's a file in the crosh extension at js/crosh.js that shows the basics of how it's done:
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Click to collapse
Again, very interesting. Now you come to mention it, an approach such as this does seem like it might be do-able without too much messing around (maybe)...
Any possible method we can get e.g. an extension to 'talk' to the shell is worth looking into I think; as you say, if we can cut out the middleman (ssh) and maybe do it more elegantly, that might be pretty useful indeed.
Again not sure this is the best place for this question but I used the debloat guide (and linked uninstall guide) from https://www.xda-developers.com/uninstall-carrier-oem-bloatware-without-root-access/ and everything is pretty much operating the way I want it to. I have kept explicit records of packages that I've uninstalled just in case, but ...
Is there a combination of switches I can use to see the modules I explicitly uninstalled using this method?
Also there are a number of packages that would normally be downloaded and installed on my Walmart tablet that I disabled and deleted prior to net access. Is there a way to differentiate these from packages installed on device startup or by the store or by side-loaded APK from the ones I disabled using the above guide?
I do have some confusion as to why the -d, -e, -s -3, etc. options seem to list only that type whereas the -u option appears to list the uninstalled packages all mixed up with with all other package types without making the distinction as to which are which.
A pointer to an ADB command manual would be helpful or even an explanation of in-command help (I tried -q -? -h)
just type help after whichever main command you want to use.
PhotonIce said:
just type help after whichever main command you want to use.
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Ah ... "pm help" not "pm list packages help"
OK thanks that does help.
However the documentation does seem to say what I thought it did which is -u shows uninstalled packages in addition to whatever is listed with no option.
Then I have to weed out the 180 "pm list packages" from the 205 "pm list packages -u" to get the 25 actual uninstalled packages.
I was kind of hoping that there was some combination of options that will just list the 25 uninstalled packages directly.
Code:
echo $(pm list packages) $(pm list packages -u)|tr ' ' '\n'|sort|uniq -u
CXZa said:
echo $(pm list packages) $(pm list packages -u)|tr ' ' '\n'|sort|uniq -u
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Thanks. This is exactly what I was looking for.