[Q] How to install TWRP recovery directly? - Optimus One, P500, V General

Sorry if it is a silly question. I am new to installing new ROM and flashing stuff. I have come across the thread on TWRP recovery where it says that to install it, we have to flash it from other recoveries(i.e. CWM or AmonRA). What if I have none of these? Should I install one of them at first place and then proceed to flash TWRP or, there is some other way out? Thanks.

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flash_image, Flash Image GUI, fastboot, another recovery, LGMDP.exe for unrooted phones. Read the sticky threads.
Sent from my LG-P500 using XDA App

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dr.notor said:
flash_image, Flash Image GUI, fastboot, another recovery, LGMDP.exe for unrooted phones. Read the sticky threads.
Sent from my LG-P500 using XDA App
Click to expand...
Click to collapse
Thanks Sir for your quick response. Will go through it.....

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developer++ said:
Sorry if it is a silly question. I am new to installing new ROM and flashing stuff. I have come across the thread on TWRP recovery where it says that to install it, we have to flash it from other recoveries(i.e. CWM or AmonRA). What if I have none of these? Should I install one of them at first place and then proceed to flash TWRP or, there is some other way out? Thanks.
Click to expand...
Click to collapse
root using gingerbreak,download latest rom manger and install clockwork recovery from there - if want to change reovery to twrp just flash from clockowrk recovery after it gets installed
this may help u http://forum.xda-developers.com/showthread.php?t=1038338
make sure usb debugging is enabled while installing custom recovery from rom manger ,make sure u download the latest rom manger from market
welcome to world of custom rom

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shhbz said:
root using gingerbreak,download latest rom manger and install clockwork recovery from there - if want to change reovery to twrp just flash from clockowrk recovery after it gets installed
this may help u http://forum.xda-developers.com/showthread.php?t=1038338
make sure usb debugging is enabled while installing custom recovery from rom manger ,make sure u download the latest rom manger from market
welcome to world of custom rom
Click to expand...
Click to collapse
Thanks for the info. Was really a nice descriptive guide for newbies.

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One more question. I am on stock froyo 2.2.2 and have flashed TWRP recovery which creates partition in ext4 only. Now I have also flashed Darktremor A2SD which fails to move dalvik to sd card which I assume is because of the ext4 partition that is not recognised by the stock rom. Am I correct with my assumption?
Is flashing another rom is the only way out? If yes, how should I move the existing apps from my stock rom to the new row. Thanks.

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Code:
cat /proc/filesystems
will tell you what your kernel supports.

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shhbz said:
root using gingerbreak,download latest rom manger and install clockwork recovery from there - if want to change reovery to twrp just flash from clockowrk recovery after it gets installed
this may help u http://forum.xda-developers.com/showthread.php?t=1038338
make sure usb debugging is enabled while installing custom recovery from rom manger ,make sure u download the latest rom manger from market
welcome to world of custom rom
Click to expand...
Click to collapse
This method is not quite OK for me. Did anyone try to actually install that recovery using "Phone Terminal Emulator method"?
I mean this.
adb shell
su (it will ask for root permission in your phone screen just allow)
mount -o remount,rw -t yaffs2 /dev/block/mtdblock1 /system
cat /sdcard/flash_image > /system/bin/flash_image
chmod 755 /system/bin/flash_image
mv /system/etc/install-recovery.sh /system/etc/install-recovery.sh.bak (you will get an error just proceed)
mount -o remount,ro -t yaffs2 /dev/block/mtdblock1 /system
flash_image recovery /sdcard/LGp500-recovery-v12.img (note just name the blue marked as the same as your custom recovery name and should end with .img)
Click to expand...
Click to collapse

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Martin "skunk" Rotter said:
This method is not quite OK for me. Did anyone try to actually install that recovery using "Phone Terminal Emulator method"?
I mean this.
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Click the link in my signature. There are 3 perfectly working methods to flash recovery. Dunno what the problem really is.

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Well, if course i know these methods and i used it many times. Maybe author of this (extremely interesting and incredibly looking) recovery could mention these methods in his thread. I think that only "flash this ZIP via your CWM"-like tutorial is not enough for some users and then they are confused -> and then new threads like this are created.

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Martin "skunk" Rotter said:
Well, if course i know these methods and i used it many times. Maybe author of this (extremely interesting and incredibly looking) recovery could mention these methods in his thread. I think that only "flash this ZIP via your CWM"-like tutorial is not enough for some users and then they are confused -> and then new threads like this are created.
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Click to collapse
That thread is a development thread for that particular recovery. There is absolutely no difference when flashing this or another recovery (like AmonRa or CWM.) So, there are enough howtos here (mentioned in the sticky thread that noone reads) to cover flashing recovery.
Development section is for development, not for repeating redundant stuff over and over again.

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I get it, but obvíously developer++ doesn't.

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Martin "skunk" Rotter said:
This method is not quite OK for me. Did anyone try to actually install that recovery using "Phone Terminal Emulator method"?
I mean this.
Click to expand...
Click to collapse
well that an outdated mwthod and a lengthy procedure so why not use rom manger and get the latest clockwork recovery and easily shift to whichever recovery u are wiling to use

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shhbz said:
well that an outdated mwthod and a lengthy procedure so why not use rom manger and get the latest clockwork recovery and easily shift to whichever recovery u are wiling to use
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Click to collapse
There is nothing outdated about the method. And why not use ROM Manager? Because ROM Manager absolutely lacks any sanity checks when flashing recovery. It will happily download incomplete *.img (happens a LOT esp. on 2G/3G) and flash it, making your phone stuck with fastboot.
I have mentioned numerous times that they should distribute a signed ZIP with recovery contained and check the ZIP before flashing. (Even the ZIP format itself has a CRC checks built in if you are too lazy to bother with manifests.)
There are tons of complaints from people all over the board about ROM Manager half-bricking their phones, I am really stunned by the bad design of the feature and lack of action to fix it.

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shhbz said:
well that an outdated mwthod and a lengthy procedure so why not use rom manger and get the latest clockwork recovery and easily shift to whichever recovery u are wiling to use
Click to expand...
Click to collapse
Well, but don't you see that problem?
get the latest clockwork recovery and easily shift to whichever recovery u are wiling to use
Click to expand...
Click to collapse
Why this? Some say usual recovery installation methods will work and you say to use this (weird) method. Then you can't wonder, why creator of this thread is confused.

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dr.notor said:
There is nothing outdated about the method. And why not use ROM Manager? Because ROM Manager absolutely lacks any sanity checks when flashing recovery. It will happily download incomplete *.img (happens a LOT esp. on 2G/3G) and flash it, making your phone stuck with fastboot.
I have mentioned numerous times that they should distribute a signed ZIP with recovery contained and check the ZIP before flashing. (Even the ZIP format itself has a CRC checks built in if you are too lazy to bother with manifests.)
There are tons of complaints from people all over the board about ROM Manager half-bricking their phones, I am really stunned by the bad design of the feature and lack of action to fix it.
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Click to collapse
yes the problem was there of phone getting into fastboot mode ,but i beieve the problem was later solved and then it worked fine as many users dont follow instruction carefully which land them into probs.yes i do agree on ur internet connection part if that lacks than they need to use adb to get it done.
since,many users are not able to use adb and stuff just bcoz they cannot configure it properly.
so they have these option to do it the easiest way if they are not able to configure adb to work properly.

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shhbz said:
yes the problem was there of phone getting into fastboot mode ,but i beieve the problem was later solved and then it worked fine as many users dont follow instruction carefully which land them into probs.yes i do agree on ur internet connection part if that lacks than they need to use adb to get it done.
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Click to collapse
I do not believe they ever changed the ROM Manager design in the way suggested. The problem is with lack of sanity checks, do not blame users for their sucky internet connection.

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Martin "skunk" Rotter said:
Well, but don't you see that problem?
Why this? Some say usual recovery installation methods will work and you say to use this (weird) method. Then you can't wonder, why creator of this thread is confused.
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Click to collapse
It depends on the users choice what they choose as we started with thunderg recovery than came the clockwork method and now the twrp method.
there are various threads and discussion on the first two method .
go and read threads as i said is a matter of choice which way u want it to get it done.
so make ur choice in which u are comfortable and confident.

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dr.notor said:
Code:
cat /proc/filesystems
will tell you what your kernel supports.
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Click to collapse
the above command gives me the following output:
Code:
cat /proc/filesystems
nodev sysfs
nodev rootfs
nodev bdev
nodev proc
nodev tmpfs
nodev debugfs
nodev sockfs
nodev pipefs
nodev anon_inodefs
nodev rpc_pipefs
nodev inotifyfs
nodev devpts
ext3
ext2
nodev ramfs
vfat
nodev nfs
yaffs
yaffs2
as seen my kernel does not support ext4.
dr.notor said:
Click the link in my signature. There are 3 perfectly working methods to flash recovery. Dunno what the problem really is.
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Click to collapse
Yes, I have been following links from your signature. They are perfectly ok. But the situation I got into was that I flashed TWRP recovery and created a ext4 partition which was the only format supported by TWRP. Then I flashed Darktremor A2SD but it was unable to mount the ext4 partition as such was unable to move dalvik to sd.
Martin "skunk" Rotter said:
Well, if course i know these methods and i used it many times. Maybe author of this (extremely interesting and incredibly looking) recovery could mention these methods in his thread. I think that only "flash this ZIP via your CWM"-like tutorial is not enough for some users and then they are confused -> and then new threads like this are created.
Click to expand...
Click to collapse
Yes, I too think an additional info about the other ways to install recovery as stated by dr.notor would be very much helpful.
And as for creating new threads I sincerely apologize if I have a made a mistake here.

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Flash the correct franco kernel, it supports ext4 just fine. (v1 versions are for CM7 6.6.x and stock(-based) GB ROMs only!)