Restoring From a dd Backup - Android Q&A, Help & Troubleshooting

I made a backup using the following guide here and now I need to restore from it. I would reply directly in the thread however I don't have permission to at the moment.
My issue is that on my phone I don't have enough space to store both a backup and the phone image and it doesn't appear that CWM can restore from a .raw file.
Is it possible to basically reverse the operation and setup this on my Mac
Code:
adb forward tcp:5555 tcp:5555
sudo nc -l -p 5555 -e dd if=/path/to/backup
and then on my phone:
Code:
adb forward tcp:5555 tcp:5555
cd /dev/block/mmcblk0
nc 127.0.0.1 5555 | pv -i 0.5 > mmcblk0.raw
I get the feeling however (going with my limited understanding of Unix), this will just transfer the .raw file back and it will just possibly brick the phone. (Edit: going back and looking, maybe using …dd of=/dev/block/mmcblk0 and then using netcat to provide the file to write will work?)
I have Googled extensively and another option I have come upon is using gdisk to extract the individual partitions from the backup but this sounds fairly laborious to me.
Alternatively is it possible just to turn the .raw into tars which CWM can restore natively?
Thanks, and apologies if this is in the wrong place.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Moto G (XT1033), Cyanogenmod 11 M6

Related

Nandroid Backup Question

I fully understand how to do a nandroid backup via adb, but is it possible to do a nandroid+ext backup from adb as well?
gospodinwizard said:
I fully understand how to do a nandroid backup via adb, but is it possible to do a nandroid+ext backup from adb as well?
Click to expand...
Click to collapse
With Amon_RA booted up:
adb shell /sbin/nandroid-mobile.sh --help
e.g., the -e (or --ext2) option.
Note that not every option that is available in the "nandroid-mobile.sh" script works correctly in the Eris version of Amon_RA; not only that, but Amon_RA tends to call the script with lots of command line options.
If you want to find out what options the interactive menu system uses, there are two ways to do this:
(1) With Amon_RA running, and a Linux box (or cygwin on Windows):
adb pull /sbin/recovery ./recovery-binary
strings ./recovery-binary | grep nandroid-mobile
rm ./recovery-binary
That will get you the following:
Code:
/sbin/nandroid-mobile.sh -b --norecovery --nocache --nomisc --nosplash1 --nosplash2 --defaultinput
/sbin/nandroid-mobile.sh -b -e --norecovery --nocache --nomisc --nosplash1 --nosplash2 --defaultinput
/sbin/nandroid-mobile.sh -r -e --norecovery --nocache --nomisc --nosplash1 --nosplash2 --defaultinput -s
I suppose the 2nd one is the one you want for Nand+ext
Or, if you think that is too sneaky,
(2) With Amon_RA running, log in interactively with adb, start the backup/recovery operation you are interested in, and then run the command
Code:
ps
find the PID of the backup process and quickly (before the backup/restore finishes), type the command
Code:
cat /proc/<PID>/cmdline
where <PID> is replaced with the numeric PID (Process ID) you observed in the output of the ps command.
bftb0

[Q] busybox dd command not working when used in C# - please help

Right, I'm currently working on a project which involves imaging Android phones - specifically, the program I've written is mean to automate identifying the memory block containing the userdata and then using the following sequence of commands (using Android Debug Bridge) to copy it to the computer that the phone is connected to:
Code:
adb forward tcp:5555 tcp:5555
adb shell
busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number] bs=4096
This is done in command prompt and then you have to manually open another command prompt and type in:
Code:
adb forward tcp:5555 tcp:5555
nc 127.0.0.1 5555 | dd of=[chosen file name].bin bs=4096 -- progress
This copies the memory block over without any problems when done manually and even shows you in real time how much data has been transferred.
The problem I have is with automating the process in C#. Specifically, I can get every stage of it to work through using a process to write the commands to standard input and using a tcp listening port to receive the data. Apart from this crucial element of the process:
Code:
adb shell "busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number] bs=4096"
For some reason, no matter how I try to phrase it or do it, C# hates that command and won't execute it. I can manually type the exact same thing into the command prompt and it works fine but trying to do it in C# just leads to busybox acting as though I typed the command in incorrectly - this is what it gives me:
Code:
BusyBox v1.15.2 <2009-11-27 10:38:30 GMT> multi-call binary
Usage: nc [-in] [-wN] [-l] [-p Port] [-f FILENAME|PADDR PORT] [-e PROG]
Open a pipe to IP:port or file
Options:
-e PROG Run prog after connect
-i SEC Delay interval for lines sent
-w SEC Timeout for connect
-f FILE Use file <ala /dev/ttyS0> instead of network
-l Listen mode, for inbound connects
<use -l twice with -e for persistent server>
-p PORT Local port
The problem appears to be particularly with the use of bs=[bytes] but I've no idea why - and I've spent several hours searching all over the web for solutions.
So basically, I was wondering whether anyone else might have encountered this issue before and if anyone has any ideas to get around it? At the moment I'm using a script to send the commands to the command prompt but that's a kludge that I'd really prefer not to have to use.
Thanks in advance for any suggestions or comments and apologies if I've posted this in the wrong place.
Probably has to do with syntax.
In the first instance you don't have it in quotes.
Code:
busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number] bs=4096
Then you do have quotes the second time.
Code:
adb shell "busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number] bs=4096"
Sometimes, using a newer busybox helps too... 1.15.2 is kinda old
The first time is meant to show that it's being done on two different lines though I probably should have made that clearer.
Thanks for the suggestion - I just upgraded to the latest version of busybox and also altered my code so it would open cmd.exe and then run adb.exe rather than skipping straight to running adb.exe. This seems to have fixed the problem some of the time so there's probably a timing issue as well.
So I don't know whether it was the busybox version or the adb.exe/cmd.exe thing but, either way, the problem seems to have disappeared so I'm not going to change anything else in case I break it again.
Thanks very much for your help
Yep I find that there is always 2 or 3 ways to do something and usually only 1 way works all the time (lowest common denominator etc...)
@Antonine May I ask you what's the project you're talking about? I'm interested...

[Q] How to pipeline pipe contents from android phone via adb to my computer?

Suppose that I do the following command from windows:
Code:
adb shell cat /sdcard/myfile.zip > c:\file.zip
The result is that the two files don't match, even they have much different file size. Using 'adb pull' works but is not compatible with pipelining or fifos.
Any help?
EDITED: here is the solution:
Antonine said:
Right, I'm currently working on a project which involves imaging Android phones - specifically, the program I've written is mean to automate identifying the memory block containing the userdata and then using the following sequence of commands (using Android Debug Bridge) to copy it to the computer that the phone is connected to:
Code:
adb forward tcp:5555 tcp:5555
adb shell
busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number]
This is done in command prompt and then you have to manually open another command prompt and type in:
Code:
adb forward tcp:5555 tcp:5555
nc 127.0.0.1 5555 | dd of=[chosen file name].bin -- progress
This copies the memory block over without any problems when done manually and even shows you in real time how much data has been transferred.
The problem I have is with automating the process in C#. Specifically, I can get every stage of it to work through using a process to write the commands to standard input and using a tcp listening port to receive the data. Apart from this crucial element of the process:
Code:
adb shell "busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number]"
For some reason, no matter how I try to phrase it or do it, C# hates that command and won't execute it. I can manually type the exact same thing into the command prompt and it works fine but trying to do it in C# just leads to busybox acting as though I typed the command in incorrectly - this is what it gives me:
Code:
BusyBox v1.15.2 <2009-11-27 10:38:30 GMT> multi-call binary
Usage: nc [-in] [-wN] [-l] [-p Port] [-f FILENAME|PADDR PORT] [-e PROG]
Open a pipe to IP:port or file
Options:
-e PROG Run prog after connect
-i SEC Delay interval for lines sent
-w SEC Timeout for connect
-f FILE Use file <ala /dev/ttyS0> instead of network
-l Listen mode, for inbound connects
<use -l twice with -e for persistent server>
-p PORT Local port
The problem appears to be particularly with the use of bs=[bytes] but I've no idea why - and I've spent several hours searching all over the web for solutions.
So basically, I was wondering whether anyone else might have encountered this issue before and if anyone has any ideas to get around it? At the moment I'm using a script to send the commands to the command prompt but that's a kludge that I'd really prefer not to have to use.
Thanks in advance for any suggestions or comments and apologies if I've posted this in the wrong place.
Click to expand...
Click to collapse
zeppelinrox said:
Probably has to do with syntax.
In the first instance you don't have it in quotes.
Code:
busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number]
Then you do have quotes the second time.
Code:
adb shell "busybox nc –l –p 5555 –e dd if=/dev/mtd/mtd[mtd block number]"
Sometimes, using a newer busybox helps too... 1.15.2 is kinda old
Click to expand...
Click to collapse
NOTE: you have to use unix paths with cygwin, not DOS ones. Use cygpath to convert:
Code:
cygpath -u "C:\your path\folder\archive"
Thanks man, you saved my life! I just deleted some pictures from my Nexus 7 and I had to find a way to dump the internal storage to my computer in order to use it with PhoroRec...
scandiun said:
Suppose that I do the following command from windows:
Code:
adb shell cat /sdcard/myfile.zip > c:\file.zip
The result is that the two files don't match, even they have much different file size. Using 'adb pull' works but is not compatible with pipelining or fifos.
Any help?
EDITED: here is the solution:
Click to expand...
Click to collapse
can't seem to get the -- progress part to work it kicks back error of invalid command
Code:
" adb forward tcp:5555 tcp:5555 "
" adb shell "
" su "
" busybox nc 127.0.0.1 5555 | dd of=C:\Users\PB-2\Desktop\GN-3_MJ5_Full.raw.img bs=4096 "
After inputting the last line I get:
: cannot open for write: Read-only file system
any Ideas? I don't understand how my pc desktop could be read only
Thanks in Advance
Phatboyj420 said:
can't seem to get the -- progress part to work it kicks back error of invalid command
Code:
" adb forward tcp:5555 tcp:5555 "
" adb shell "
" su "
" busybox nc 127.0.0.1 5555 | dd of=C:\Users\PB-2\Desktop\GN-3_MJ5_Full.raw.img bs=4096 "
After inputting the last line I get:
: cannot open for write: Read-only file system
any Ideas? I don't understand how my pc desktop could be read only
Thanks in Advance
Click to expand...
Click to collapse
You can't use DOS paths on cygwin, you have to use unix ones:
Code:
busybox nc 127.0.0.1 5555 | dd of=/cygdrive/c/Users/PB-2/Desktop/GN-3_MJ5_Full.raw.img bs=4096
You can convert any DOS path to unix with cygpath if you don't figure out directly (even on other drives):
Code:
cygpath -u "C:\Users\PB-2\Desktop\GN-3_MJ5_Full.raw.img"
Result:
Code:
/cygdrive/c/Users/PB-2/Desktop/GN-3_MJ5_Full.raw.img
scandiun said:
You can't use DOS paths on cygwin, you have to use unix ones:
Code:
busybox nc 127.0.0.1 5555 | dd of=/cygdrive/c/Users/PB-2/Desktop/GN-3_MJ5_Full.raw.img bs=4096
You can convert any DOS path to unix with cygpath if you don't figure out directly (even on other drives):
Code:
cygpath -u "C:\Users\PB-2\Desktop\GN-3_MJ5_Full.raw.img"
Result:
Code:
/cygdrive/c/Users/PB-2/Desktop/GN-3_MJ5_Full.raw.img
Click to expand...
Click to collapse
Awesome Thanks,
I'm assuming this is true in both cd & dd via cygwin?
I was originally trying to input the commands in DOS because your OP doesn't specify, or say to use cygwin.
I came to the realization of using cygwin after reading other guides.
I've been looking at some of your other guides I owe You many thanks as a Result
Phatboyj420 said:
Awesome Thanks,
I'm assuming this is true in both cd & dd via cygwin?
I was originally trying to input the commands in DOS because your OP doesn't specify, or say to use cygwin.
I came to the realization of using cygwin after reading other guides.
I've been looking at some of your other guides I owe You many thanks as a Result
Click to expand...
Click to collapse
Yes, since cygwin is to be compatible with unix scripts paths must be always in unix format.
You can use dos paths directly
Code:
cd `cygpath -u "C:\your path\folder\archive"`
I've updated the first post
scandiun said:
Yes, since cygwin is to be compatible with unix scripts paths must be always in unix format.
You can use dos paths directly
Code:
cd `cygpath -u "C:\your path\folder\archive"`
I've updated the first post
Click to expand...
Click to collapse
Awesome share Thanks
I still can't get this to work "for the life of me" I know, I now have cygwin setup right, as it works with your example here
Phatboyj420 said:
Awesome share Thanks
I still can't get this to work "for the life of me" I know, I now have cygwin setup right, as it works with your example here
Click to expand...
Click to collapse
Are you still getting "cannot open for write"?
scandiun said:
Are you still getting "cannot open for write"?
Click to expand...
Click to collapse
Nope you set me strait on that one
In the first window I do
Code:
" adb forward tcp:5555 tcp:5555 "
" adb shell "
" su "
" system/xbin/busybox nc –l –p 5555 –e dd if=/dev/block/mmcblk0 bs=4096 "
and get the usage response
Code:
BusyBox v1.22.1-Stericson (2014-01-25 17:27:18 CET) multi-call binary.
Usage: nc [-iN] [-wN] [-l] [-p PORT] [-f FILE|IPADDR PORT] [-e PROG]
Open a pipe to IP:PORT or FILE
-l Listen mode, for inbound connects
(use -ll with -e for persistent server)
-p PORT Local port
-w SEC Connect timeout
-i SEC Delay interval for lines sent
-f FILE Use file (ala /dev/ttyS0) instead of network
-e PROG Run PROG after connect
If I trade out the string from your other example here, " The only problem i'm having with your other example is that I can't specify the " bs=4096 " "
I can get through to the second window
Example
Code:
[email protected] ~
$ adb forward tcp:5555 tcp:5555
[email protected] ~
$ adb shell
[email protected]:/ $ su
su
[email protected]:/ # /system/xbin/busybox nc -l -p 5555 -e /system/xbin/busybox dd if=/dev/block/mmcblk0 bs=4096
555 -e /system/xbin/busybox dd if=/dev/block/mmcblk0 bs=4096 <
The second terminal then gives me an error at the last string
Output of second terminal
Code:
[email protected] ~
$ adb forward tcp:5555 tcp:5555
[email protected] ~
$ nc 127.0.0.1 5555 | dd of=/cygdrive/c/Users/PB-2/Desktop/GN-3_Tmp/mmcblk0.raw bs=4096 -- progress
dd: unrecognized operand `progress'
Try `dd --help' for more information.
If I run it with out, " -- progress " it runs but with-out the desired effect of the progress response
Code:
[email protected] ~
$ adb forward tcp:5555 tcp:5555
[email protected] ~
$ nc 127.0.0.1 5555 | dd of=/cygdrive/c/Users/PB-2/Desktop/GN-3_Tmp/mmcblk0.raw bs=4096
I'm at a loss I need to figure out how to run the pv and the dd of= in the same line i guess
or to some how combine
Code:
" nc 127.0.0.1 5555 | dd of=/cygdrive/c/Users/PB-2/Desktop/GN-3_Tmp/mmcblk0.raw bs=4096 "
&
Code:
" nc 127.0.0.1 5555 | pv -i 0.5 > /cygdrive/c/Users/PB-2/Desktop/GN-3_Tmp/mmcblk0.raw "
So as to achieve both the bs= & the Read-out notification
Thanks tremendously, for your assistance thus far.
That's right, some android implementations of dd lack advanced parameters. You can try either installing Busybox from Stericson or just skip the bs option.
Removed all the "bs=4096" from quotations in first post, since it's not needed at all.
I keep getting
write error: File too large, when trying to dump my /data partition to my external sd card.
The external card is exFat formatted, which is supposed to be able to handle larger than 4Gig files
here's my command
Code:
busybox dd if/dev/block/mmcblk0p29 of=/mnt/extSdCard/data.ext4.img
any ideas?
p.s. yes, I do have more than 4G's of software on my phone
kevp75 said:
I keep getting
write error: File too large, when trying to dump my /data partition to my external sd card.
The external card is exFat formatted, which is supposed to be able to handle larger than 4Gig files
here's my command
Code:
busybox dd if/dev/block/mmcblk0p29 of=/mnt/extSdCard/data.ext4.img
any ideas?
p.s. yes, I do have more than 4G's of software on my phone
Click to expand...
Click to collapse
Two ideas:
1 - Try from recovery
2 - If that doesn't work put the sd into a card reader and connect it as otg drive.
scandiun said:
Two ideas:
1 - Try from recovery
2 - If that doesn't work put the sd into a card reader and connect it as otg drive.
Click to expand...
Click to collapse
I can try from recovery sure, but how would #2 solve the issue? (don't know what otg drive means)
kevp75 said:
I can try from recovery sure, but how would #2 solve the issue? (don't know what otg drive means)
Click to expand...
Click to collapse
Search google images for otg
scandiun said:
Search google images for otg
Click to expand...
Click to collapse
didnt work. I get the same issue
Rockin' it from my Smartly GoldenEye 35 NF1 (muchas gracias:* @iB4STiD @loganfarrell @muniz_ri @Venom0642 @ted77usa @rebel1699* @iB4STiD) ~ 20GB free cloud https://copy.com?r=vtiraF
Check me out online @ http://kevin.pirnie.us
kevp75 said:
didnt work. I get the same issue
Click to expand...
Click to collapse
Format a pendrive in NTFS or HFS+ and connect it to your phone via OTG, if it's not detected directly there are some apps on play store.
scandiun said:
Format a pendrive in NTFS or HFS+ and connect it to your phone via OTG, if it's not detected directly there are some apps on play store.
Click to expand...
Click to collapse
NTFS worked. My data partition is over 8Gigs! But I was under the impression that exFat was able to support that... but I guess not...
kevp75 said:
NTFS worked. My data partition is over 8Gigs! But I was under the impression that exFat was able to support that... but I guess not...
Click to expand...
Click to collapse
Next time you can try copying some big data to the exfat from the computer itself, just to see if prompts some error.
scandiun said:
Next time you can try copying some big data to the exfat from the computer itself, just to see if prompts some error.
Click to expand...
Click to collapse
tried that too had a 9.7g dvd imaage i tried with and it failed at the 4g mark. ext4 should be the standard
Rockin' it from my Smartly GoldenEye 35 NF1 (muchas gracias:* @iB4STiD @loganfarrell @muniz_ri @Venom0642 @ted77usa @rebel1699* @iB4STiD) ~ 20GB free cloud https://copy.com?r=vtiraF
Check me out online @ http://kevin.pirnie.us

[GUIDE][TUTORIAL][SHARE] How to make a nandroid backup directly to your computer with

Note: I'm just sharing the work of the XDA member.This guide was tested on Galaxy Y GT-S5360.Here's a little introduction:
scandiun said:
INFORMATION
This guide is intended to make a full backup of your android phone (the entire memory block with all partitions) or a single partition (including sdcards, etc) directly to your computer, in either
Block level (with dd): for single partitions or whole memory block (all partitions in one piece). The backup always has the same size which is the size of the partition.
File level (with tar): only for individual partitions. This only includes files and folders, so occupies much less space, depending on how much filled is the partition.
It can be done with the phone powered on or from ClockWorkMod Recovery (from both ADB works, while in Fastboot doesn't so won't apply). Unless specified the commands meant to be used from Windows. For Linux and Unix is similar.
REQUIREMENTS
Rooted Android Phone
Busybox installed on your phone
If you are using Linux / OS X you have native tools, for Windows download Cygwin, and install with it netcat, pv and util-linux. Get them from Cygwin's setup.exe
ADB installed.
Make sure adb.exe is in your windows' path. See here and here, or use Path Manager.
Android phone with USB Debugging enabled, and the proper drivers installed on Windows so the phone is recognized. Typing 'adb devices' on a terminal should show your device.
PARTITION IDENTIFICATION
You now have to identify the partition or block device that you want to backup. For a single partition you can use either tar or dd, while for the entire memory block you can only use dd.
For example, on Galaxy Nexus you have the list of partitions here and for Galaxy S2 here.
Usually on android, the entire block containing all partitions is located at /dev/block/mmcblk0 and the data partitions is a subpartition of it. You can push parted with GPT support to your device and see all information on a partition or block.
Whole phone memory -> /dev/block/mmcblk0 (may vary, in some phones this is the sdcard)
Subpartitions -> depends on each device. Usually at /dev/block/platform/dw_mmc/by-name/ there are listed by name linking to the real device.
Back up of the whole memory block (via adb)
Connect the phone in ADB mode and unlock the screen.
Open one Cygwin Terminal and enter (replace mmcblk0 if needed):
Code:
adb forward tcp:5555 tcp:5555
adb shell
su
/system/xbin/busybox nc -l -p 5555 -e /system/xbin/busybox dd if=/dev/block/mmcblk0
You will see the cursor blinking at the left. Now the phone is waiting to send the block over the network.
Open another Cygwin terminal and type:
Code:
adb forward tcp:5555 tcp:5555
cd /path/to/store/the/backup
nc 127.0.0.1 5555 | pv -i 0.5 > mmcblk0.raw
You will see how the image size is growing until it finishes. Now you have the whole phone backed up in raw format. You can see the contents of the GPT partition with gptfdisk tool, available for windows, linux and such. See official website and sourceforge to get it. You can do it the same from ClockWorkMod Recovery but you have to mount first the /system partition since the busybox included with clockworkmod does not come with netcat and you have to use the one from the system partition.
With further linux tools you could edit or extract single partitions from the whole block.
You can use adb via wifi as well with applications like WiFi ADB.
Back up of the whole memory block (via wifi)
Original post: [Q] Nandroid directly to computer w/o sdcard
We need to install a FTP server on the computer or the other device, configure a user with a password if we want to, and set some port. It uses by default 21 but this example uses 40. We must set a home dir for the user with write permissions.
Usually is a good idea to put myfifo in /cache not in /data because we may overwrite sensitive data in case we want to use that raw image for data recovery.
Open one Cygwin terminal
Code:
adb shell
su
mkfifo /cache/myfifo
ftpput -v -u user -p pass -P 40 COMPUTER_IP block.raw /cache/myfifo
Open another Cygwin terminal
Code:
adb shell
su
dd if=/dev/block/mmcblk0p12 of=/cache/myfifo
Tips:
- Fifos only can be made on linux native filesystems, for example on a FAT partition is not possible.
- Reading from a partition does not modify it.
Now check on Filezilla Server the speed
Back up of the whole memory block (USB tethering, Wifi tethering)
To use tethering you have to disconnect the computer from all networks and connect it only to the phone with the type of connection you want.
Once you connect it, you can view the IP of the computer and the IP of the phone from connection properties. The ip is the computer ip and the gateway is the phone's ip.
Wifi Tethering: Computer Phone Internet
USB Tethering:
Computer Phone Internet
Conputer Phone Internet
This is exactly the same as via wifi, except that the transfer speed is much higher because the computer and the phone are directly connected, instead of using a router as a gateway. In this case, the gateway is the phone. USB tethering has the highest transfer rate.
Back up of a single partition (raw = every bit of the partition)
It is exactly the same as the the previous but replacing mmcblk0 by the corresponding partition. You can use in this particular case several software to read the partition from windows, depending on partition filesystem: DiskInternals Linux Reader, Ext2Read, Ext2 File System Driver for Windows, Ext4Explore, plugin for Total Commander and ImDisk Virtual Disk Driver. You can also use recovery software on individual partitions like Recuva in combination with VHD Tool or command line tools included with operating systems.
Back up of a single partition (tar = only files and folders)
In this case, you need the partition mounted. To see the list of mounted partitions type on Cygwin Terminal
Code:
adb shell mount
Now you need to know where is mounted the partition you want to backup, for example the firmware is mounted on /system, which is the ROM.
In this case you will have to open three terminals, because of android limitations:
Open one Cygwin terminal and create a fifo, in /cache, for example, and redirect the tar there
Code:
adb forward tcp:5555 tcp:5555
adb shell
su
/system/xbin/busybox mkfifo /cache/myfifo
/system/xbin/busybox tar -cvf /cache/myfifo /system
We have to do it this way because redirecting the tar to stdout (with - ) is broken on android and will corrupt the tar file.
Open a second Cygwin terminal and type:
Code:
adb forward tcp:5555 tcp:5555
adb shell
su
/system/xbin/busybox nc -l -p 5555 -e /system/xbin/busybox cat /cache/myfifo
Open a third Cygwin terminal and type:
Code:
adb forward tcp:5555 tcp:5555
cd /path/to/store/the/backup
nc 127.0.0.1 5555 | pv -i 0.5 > system.tar
You can browse the tar file with Winrar, Total Commander, PeaZip and almost any compression tool. Note that you shouldn't extract files or edit it since the tar format saves the permission and owner data for each file, that is lost when extracted to FAT / NTFS partitions and you will mess things when restoring.
LINKS
[GUIDE] Internal Memory Data Recovery - Yes We Can!
How to Create and Attach a Virtual Hard Disk in Windows 7
[Guide] Types of Android backups
Click to expand...
Click to collapse
Original Thread : http://forum.xda-developers.com/showthread.php?t=1818321
And here is the guide to make nandroid backup through terminal app in android with switching off the phone in sdcard!!!
http://forum.xda-developers.com/showthread.php?t=1620255

[Q] Make a full backup for flashing with busybox

Hello
There's a way for making a backup with RAW extension that can be flashed with fastboot in asus fonepad (i don't know about others)
See this: http://forum.xda-developers.com/showthread.php?t=1818321
Back up of the whole memory block (via adb)
Connect the phone in ADB mode and unlock the screen.
Open one Cygwin Terminal and enter (replace mmcblk0 if needed):
Code:
adb forward tcp:5555 tcp:5555
adb shell
su
/system/xbin/busybox nc -l -p 5555 -e /system/xbin/busybox dd if=/dev/block/mmcblk0
You will see the cursor blinking at the left. Now the phone is waiting to send the block over the network.
Open another Cygwin terminal and type:
Code:
adb forward tcp:5555 tcp:5555
cd /path/to/store/the/backup
nc 127.0.0.1 5555 | pv -i 0.5 > mmcblk0.raw
You will see how the image size is growing until it finishes. Now you have the whole phone backed up in raw format. You can see the contents of the GPT partition with gptfdisk tool, available for windows, linux and such. See official website and sourceforge to get it. You can do it the same from ClockWorkMod Recovery but you have to mount first the /system partition since the busybox included with clockworkmod does not come with netcat and you have to use the one from the system partition.
With further linux tools you could edit or extract single partitions from the whole block.
Click to expand...
Click to collapse
But it's for rooted devices only. how can i make a backup with busybox non-root?

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