Hello I'm new to the nexus line and recently upgraded form a SGS. my phone is Rooted, unlocked boot loader and running the most recent version of CWM 5.5.0.4. I'm running the GSM version of the Nexus.
My question is how do I flash the my first rom? When I boot into recovery and click install zip from SDcard i get "E: Can't mount /sdcard/" I am also unable to mound the data partition within. windows drivers are installed for both fastboot and adb so I can flash that way, i'm just wondering what the exact steps are and if that error mounting data is normal.
I also downloaded the most recent franco.Kernel as I want to run that, I know how to flash that with fastboot but wasnt' sure if that is how you would flash a rom with the nexus, on the SGS i used to use odin.
Thanks and sorry for the noobness.
How did you "unlock fastboot" and "root" and "install CWM"? Did you use one of the "Tool Kits"?
Do you have ROM Manager installed on your device?
yiannisthegreek said:
How did you "unlock fastboot" and "root" and "install CWM"? Did you use one of the "Tool Kits"?
Do you have ROM Manager installed on your device?
Click to expand...
Click to collapse
Sorry, Yes I have ROM Manager installed and its' paid for.
I unlocked my boot loader using fastboot oem unlock, I rooted by using an app because I couldn't mount the data partition in recovery so had to use some app some guy made that downloaded the su.zip from clockwork and flashed on it's own.
I installed CWM using fastboot.
fastboot flash recovery recovery.img
it's the dam data partition that i'm really having trouble with, i'm just wondering if this is normal, all the posts on the web say to flash a zip by choosing "choose zip from scard" but mine wont mount???
I should also mention that my entire device is encrypted.....that is whats causing it isn't it?
I'm not 100% sure but it could be that you flashed the wrong recovery.
According to this thread
http://forum.xda-developers.com/showthread.php?t=1357642
the recovery for the GSM version is 5.5.0.2 and not 0.4.
I would flash the correct recovery then try again.
You can not mount sdcard from CWM recovery (don't ask me why, I don't know.. maybe because it is not supported yet ..)
anyway, do like me, use CWM 5.5.0.2 and then try again toflash zip files .. It works for me
P4p3r1n0 said:
You can not mount sdcard from CWM recovery (don't ask me why, I don't know.. maybe because it is not supported yet ..)
anyway, do like me, use CWM 5.5.0.2 and then try again toflash zip files .. It works for me
Click to expand...
Click to collapse
He posted it on his Google+ account here:
https://plus.google.com/112476065271141473049/posts
I'm starting to think it's my encrypted phone, technically when I boot I have to decrypt the device before it boots into android.
I'm going to factory reset and see if that helps. I have a feeling that is what my problem is
OK so that was the problem, the data partition was encrypted (now that I think of this it makes sense that it wouldn't mount) anyways, for whatever reason a factory reset from android wouldn't work. I removed the "recovery-from-boot.p" file from my system folder originally so the CWM image would remain in tact.
anyways, I flashed the original recovery over the CWM recovery, preformed a factory wipe (which is the only way to decrypt your phone) then flashed CWM back on and now I can mount the data partition
what a pain in the ass, guess I wont be encrypting the phone any time soon, I wish there was an option to decrypt the drive and then get into recovery....wouldn't have this issue.
spectre85 said:
OK so that was the problem, the data partition was encrypted (now that I think of this it makes sense that it wouldn't mount) anyways, for whatever reason a factory reset from android wouldn't work. I removed the "recovery-from-boot.p" file from my system folder originally so the CWM image would remain in tact.
anyways, I flashed the original recovery over the CWM recovery, preformed a factory wipe (which is the only way to decrypt your phone) then flashed CWM back on and now I can mount the data partition
what a pain in the ass, guess I wont be encrypting the phone any time soon, I wish there was an option to decrypt the drive and then get into recovery....wouldn't have this issue.
Click to expand...
Click to collapse
It is possible now on 4.1.2 to decrypt the device. You must provide a password for dectypting (chane from unlock pin to passw).
Hey so here goes. Stupid me went to perform a factory restore from within in android (stock 4.2.2 rooted) and I forgot that I had installed TWRP (currently 2.7.0.2) and when the tablet rebooted to wipe everything it booted to TWRP and tried to wipe where it promptly failed with "Unable to mount /data, /internal storage, /system, etc.
So here's where i'm at. The tablet will boot to recovery but will not let me wipe anything and will not boot to android.
When i attempt to restore a nand backup it will restore then error at the end with "Unable to mount /data" and again, the tablet will not boot.
I downloaded the TWRP 2.7.0.2 update zip and flashed over my existing recovery to see if that helped, no dice.
Now i'm trying to use the method found here on XDA to restore to factory using Download Mode and everything goes well until I get to the step where i actually flash the KDZ file I get this message:
Please install CSMG B2C Client TOOL.
Select Tool > B2C Client Setup Menu.
I have followed the instructions to the letter minus putting my tablet in USB debugging mode (can't boot the tablet, no Debugging Mode)
I have no idea where to go from here.
I should mention I also tried this on Windows 7 64 bit and Windows 8.1 Pro 64 bit.
Edit: I'm not sure what wizardry has happened but it finally worked! That was terrifying for a while there.
deletedhttp://www.droidviews.com/how-to-restore-lg-g2-to-stock-firmware/2/
Hi. I've just updated CM13 to the latest nightly using TWRP, but now the system just boots into TWRP - that's whether I select boot system, recovery, or bootloader. I tried restoring from a TWRP backup or another copy of the nightlies zip - it all seems to work fine but doesn't solve the problem. I can connect to the 'recovery' device using adb but adb restart bootloader just loads TWRP again. I've tried wiping first the dalvik/cache, then everything but the internal card, then finally everything but nothing seems to work.
I did get something a little bit like this a few days ago because SuperSU was complaining that I needed to update the binary. I let it do it the way that it suggested one does when TWRP is installed and afterwards couldn't reboot into system, but after a few minutes of frustration sorted things by wiping various partitions.
I attempted to load the full system restore files (cm-13.1-ZNH2KAS29G-crackling-signed-fastboot-74bb753396.zip) using TWRP but that didn't work (I imagine because they're designed to be run via fastboot). I tried loading them via the ADB sideloader option included in TWRP but it failed after a few seconds (I think the message was 'transmitting 0.0x'
I opened that zip and copied the various files to the external card, but I then baulked at installing the image files manually because the only partition option I'm given is boot and my understanding is that each image file should go into its own partition.
The only other potentially pertinent information I can think of:
TWRP keeps reporting "E: Unable to find partition size for '/recovery'"
Has anyone got any ideas please? I had been musing that my next phone would have OTG and NFC, but I wasn't planning to upgrade just yet if I don't absolutely have to.
Have you got it fixed? And if yes - how? I am stuck in a similar situation and can't find a solution for it. Tnx in advance.
I'm currently running my OP3 on Resurrection Remix 5.7.4 (MM 6.01), the phone has the latest version of TWRP and I've flashed other ROMs in the past without any issue
RR has proven to be quite unstable for me, the system UI keeps crashing, which renders the phone unusable until after a reboot so I wanted to flash Freedom OS as that worked quite well for me previously. When I tried to flash the ROM in TWRP the ROM seemed to flash successfully but when I rebooted, only the boot logo showed and then the screen went black and the phone refused to respond at all for about two hours, after that exactly the same thing happened. I managed to boot into recovery and tried flashing a different ROM but the result was the same every time, the only way to get the phone to work normally was to flash RR again/restore from a Nandroid backup, either way, the result is the same, I'm stuck on an unstable ROM and I don't know why, the last time I flashed these ROMs they worked fine, I followed all of the instructions for flashing said ROMs to the letter, I have the latest version of TWRP, etc.
Also it seems TWRP can't mount /system, in TWRP under "mount", system is unchecked, I checked it and tried again but found that whenever I rebooted the phone or attempted to flash a new ROM, it would always uncheck itself and flashing the ROM would fail, however strangely flashing the same version of RR was always successful. Is this why the flashing keeps failing and does anyone know what the problem could be?
Thanks!
bronderb said:
Go into your bootloader and format system, cache, and userdata (This will wipe EVERYTHING so be sure to backup). Then latest official flash stock rom and reboot. This should fix it. If this helped hit thanks!
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Click to collapse
Bootloader? There is no option in the bootloader to delete everything as far as I can see, do you mean in recovery? And if I wipe everything off the phone, how do I get the stock ROM onto the phone to flash it? When you say wipe userdata do you mean wipe internal storage or am I misunderstanding and you're telling me to wipe the usual dalvik, cache and data as you would for a normal clean flash?
bronderb said:
No, go into fastboot and plug into pc. Open cmd and type "fastboot format userdata" "fastboot format cache" "fastboot format system"
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Click to collapse
Okay, thanks, and then what? Do I flash TWRP then push the stock ROM to the phone and flash that? And exactly how do I do that?
bronderb said:
You just go into twrp (no need to reflash) then adb sideload oxygen os
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Click to collapse
Thank you, I am now running OOS, hopefully everything else will go smoothly now, planning to go back to FOS again
I didn't even have to use the fastboot commands to format, just sideloading the OOS file wiped everything anyway
Turns out the issue isn't actually fixed, "system" still appears unchecked in TWRP. Could the fact that I didn't actually format everything first have made a difference, given everything was wiped in the process anyway?
Looks like I'm going to be living the sideloading life...
Edit: Sideloading freedom OS failed, ended up having to restore from my TWRP backup. I don't know what I'm going to do, my main reason for using custom ROMs is installing a black theme, and OOS doesn't support Layers or Substratum fully so I can't stay on that
Is the thing that says "mount system as read-only" enabled in the mounts menu? /System isn't ever mounted when TWRP starts, you have to manually mount it, but as long as the updater-script tells /system to mount, it will. However, if that option to make it read-only is enabled, then nothing will ever write to /system. Last resort is deleting the .twrps file from /sdcard/TWRP folder to remove current TWRP preferences and then when you boot into TWRP, that first screen has the swiper to allow modifications, and you'll swipe that
frickinjerms said:
Is the thing that says "mount system as read-only" enabled in the mounts menu? /System isn't ever mounted when TWRP starts, you have to manually mount it, but as long as the updater-script tells /system to mount, it will. However, if that option to make it read-only is enabled, then nothing will ever write to /system. Last resort is deleting the .twrps file from /sdcard/TWRP folder to remove current TWRP preferences and then when you boot into TWRP, that first screen has the swiper to allow modifications, and you'll swipe that
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Click to collapse
It isn't set to read only, I have tried updating and resetting TWRP but nothing has helped, in fact it's got worse, I managed to sideload OOS but my attempted install of FOS failed so I tried to restore from a backup and that also failed, something which didn't happen back when I was on RR.
evilkitty69 said:
It isn't set to read only, I have tried updating and resetting TWRP but nothing has helped, in fact it's got worse, I managed to sideload OOS but my attempted install of FOS failed so I tried to restore from a backup and that also failed, something which didn't happen back when I was on RR.
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Click to collapse
Which version of TWRP are you running? The official 3.1.0-0 is good for OOS and OOS based ROMs only. Try eng.stk's version.
Use the latest eng-stk twrp.
https://forum.xda-developers.com/devdb/project/?id=15934#downloads
In recovery go to Wipe > Format data (this will wipe ALL in youre phone).
It's youre Data in F2FS? If yes you must change it to ext4, in recovery Wipe > Change file system. Reboot recovery. Check if it's changed.
Reboot to Bootloader (Fastboot). From PC reflash recovery.
Now copy Oos rom to the phone memory. Flash rom. Reflash recovery (the rom will overwrite the recovery). Reboot to recovery to see if it works. If not do it again.
I sugest to NOT restore old data. This way you'll have all new in youre phone.
tnsmani said:
Which version of TWRP are you running? The official 3.1.0-0 is good for OOS and OOS based ROMs only. Try eng.stk's version.
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Click to collapse
I was running 3.0.2-2 when the issue started, I updated to 3.0.3 and 3.1.0-0 but nothing changed. Thanks for the suggestion, I will give it a try
null0seven said:
Use the latest eng-stk twrp.
https://forum.xda-developers.com/devdb/project/?id=15934#downloads
In recovery go to Wipe > Format data (this will wipe ALL in youre phone).
It's youre Data in F2FS? If yes you must change it to ext4, in recovery Wipe > Change file system. Reboot recovery. Check if it's changed.
Reboot to Bootloader (Fastboot). From PC reflash recovery.
Now copy Oos rom to the phone memory. Flash rom. Reflash recovery (the rom will overwrite the recovery). Reboot to recovery to see if it works. If not do it again.
I sugest to NOT restore old data. This way you'll have all new in youre phone.
Click to expand...
Click to collapse
Help! I attempted to do this and the process failed, I didn't manage to wipe data because "/data could not be mounted as device or resource is busy"
Edit: Device now has nothing but TWRP and fastboot, no OS, no ADB, no data, no internal storage
If you can reflash twrp from PC. If not reflash recovery from twrp recovery : Instal > Image > Select Recovery (you must have TWRP.img in youre phone memory )
I managed to get hold of a few factory images and attempted to flash system.img through fastboot, resulting error was
"target reported max download size of 536,870,912 bytes" (system image is 3080 MB)
"invalid sparse file format at header magi"
null0seven said:
If you can reflash twrp from PC. If not reflash recovery from twrp recovery : Instal > Image > Select Recovery (you must have TWRP.img in youre phone memory )
Click to expand...
Click to collapse
I reflashed the modified TWRP successfully. The second suggestion wouldn't have worked, given my phone has no internal storage
You can't see internal storage because of the recovery does not work write.
If you have a working recovery you can do all you want.
null0seven said:
You can't see internal storage because of the recovery does not work write.
If you have a working recovery you can do all you want.
Click to expand...
Click to collapse
The recovery was working at this point, the issue turned out to be the data partition, system was formatted to ext4 but I didn't realise data was in f2fs which caused the problem in the first place. I formatted to ext4 and everything worked, I was able to install paranoid android and everything worked...
...until I flashed the wrong firmware and now I've hard bricked it! I'm going to try the hard brick toolkit
Edit: After 12 hours of being an unresponsive brick, the phone suddenly booted, system doesn't work but it has recovery. Unfortunately I seem to be back to square one, if I try to flash something it appears to succeed but then the phone doesn't boot up into system
So I am now back to the original issue of system not mounting, in terminal if I type "mount /system" I get following error:
"mounting /dev/block/sde20 on /system failed: Device or resource is busy"
Anyone know how to solve this?
I formatted everything, reflashed recovery and tried to flash OOS, got following error:
Code:
[FONT="Courier New"]"This package is for OnePlus3 devices, this is a oneplus3t" (it isn't)
"Updater process ended with ERROR: 7
Error installing zip file /sdcard/OOS3.2.6.zip" [/FONT]
Issue was "solved" by flashing PA, GApps and the correct firmware
Hopefully that's the end of all this drama, thanks to everyone for their suggestions
Hi, I'm pretty new at rooting and I seem to have a similar error. I'm getting the "can't mount /system" error in TWRP. I am able to boot into OOS 4.1.3 and run the nandroid backup but, I keep getting the same error and am unable to select "system" when choosing the mount option in TWRP.
Do I need to have all partitions in f2fs? My system partition is in ext4. Is this what solved your issue?
It seems my phone is functional even with the error active but, I've been trying to get systemless SuperSU and MagiskHide working and I think that's what is preventing me from doing so.
So i unlocked my bootloader few days ago, installed twrp and magisk. Everything was working fine , so I decided to unlock critical to flash bootloader in the future if required. It was done successfully and the fastboot own device command shows that both are unlocked. But when I rebooted it kept taking me to twrp and shows unable to mount data and storage and then rebooted. I went to twrp recovery through fastboot and tried to restore a previous backup for which it restored the system portion and said data failed to mount. When I try mounting data and storage manually, it does not let me tick it. Can someone please help, I used to do rooting back in the nexus 4 days and just not familiar with this new partition a b system.
Thanks
EnIXmA said:
So i unlocked my bootloader few days ago, installed twrp and magisk. Everything was working fine , so I decided to unlock critical to flash bootloader in the future if required. It was done successfully and the fastboot own device command shows that both are unlocked. But when I rebooted it kept taking me to twrp and shows unable to mount data and storage and then rebooted. I went to twrp recovery through fastboot and tried to restore a previous backup for which it restored the system portion and said data failed to mount. When I try mounting data and storage manually, it does not let me tick it. Can someone please help, I used to do rooting back in the nexus 4 days and just not familiar with this new partition a b system.
Thanks
Click to expand...
Click to collapse
I would one if two things. First, try fastbooting the stock boot.img to whatever current rom your on, and let it boot up. If successful, then go back to bootloader/fastboot mode, fastboot temporary twrp, then once in twrp, flash the twrp.zip, custom kernel, then magisk. Hopefully that fixes it. If not, then dirty flash your rom, let it boot up, then go back and do the twrp stuff :good:
Yea that fixed it.. thanks