Develop Bugs

Mounting /system as rw

Alright, so I've been trying to mount the /system partition as rw today now that we have perm-root and I've been failing. I'm tried multiple mount options such as
mount -o rw,remount -t ext3 /system
mount -o rw,remount -t ext3 /dev/block/mmcblk0p15 /system
and a few others. The command works but when I try to uninstall an application via the package manager:
pm uninstall /system/app/amazonmp3.apk
pm uninstall /system/app/amazonmp3
I get failure.
I was also searching in the init.rc scripts in /, and noticed that it mounts the /system twice. Once in rw and then again in ro. I can't change that file though since for whatever reason, I still can't access the /system even with perm-root (s-off).
Titanium Backup also doesn't detect any /system applications.
Any thoughts, or enlightening clarifications? I'm not a Linux beginner and have experience in system administration all the way from Debian Sid to Arch Linux.
EDIT:
Solution: I have ro.secure=0 now and the remount is now successful.

You are using the pm command incorrectly. The argument is package name, not file name.
pm uninstall com.amazon.mp3
pm list packages for a full list.

That would be the reason. Unfortunately I can't look at the man pages of these commands on the phone ;D.

You edited your post to show that you now have r/w access to the /system folder, but you didn't say how you achieved ro.secure=0.
Care to share? I'm having the same issue.

perm root will give you ro.secure=0

jgro1976 said:
You edited your post to show that you now have r/w access to the /system folder, but you didn't say how you achieved ro.secure=0.
Care to share? I'm having the same issue.
Click to expand...
Click to collapse
rosecure=0 is set in the ramdisk of the kernel. It allows easy mounting rw , as in adb remount, however shouldn't be needed. Use this to mount as rw:
# mount -o rw,remount /dev/block/mmcblk0p25 /system
Replace rw with ro and run again when your done to return system to ro. I just tested it and it does mount as rw

Just to make sure it worked, I type that and get:
Usage: mount [-r] [-w] [-options] [-t type] device directory
after trying this.

jgro1976 said:
Just to make sure it worked, I type that and get:
Usage: mount [-r] [-w] [-options] [-t type] device directory
after trying this.
Click to expand...
Click to collapse
U sure you typed it exactly as I did?
There is a space after /dev/block/mmcblk0p25 before /system
Edit: and no space between comma and remount as in rw,remount

Yeah, that's how I typed it, exactly as you had it =\

jgro1976 said:
Yeah, that's how I typed it, exactly as you had it =\
Click to expand...
Click to collapse
Hmm, and you did this from root prompt # not $.
Can anyone else confirm or deny that command for me. I'm gonna flash a unmodified kernel when I get home tonight and see if that makes a difference.

fastludeh22 said:
Hmm, and you did this from root prompt # not $.
Can anyone else confirm or deny that command for me. I'm gonna flash a unmodified kernel when I get home tonight and see if that makes a difference.
Click to expand...
Click to collapse
I can confirm it doesn't work on my G2 either. I'm using Cyanogen RC1 btw.

try
mount -o remount,rw /dev/block/mmcblk0p25 /system
maybe the rw has to come after remount.
Anyways, I know mine works on permrooted stock

That did the trick, thanks!

ratchetrizzo said:
try
mount -o remount,rw /dev/block/mmcblk0p25 /system
maybe the rw has to come after remount.
Anyways, I know mine works on permrooted stock
Click to expand...
Click to collapse
jgro1976 said:
That did the trick, thanks!
Click to expand...
Click to collapse
So weird. If I type it that way, I get the mount options menu u were getting. If I type it my way it works.

I was messing around with remounting the /system partition with rw permissions, and the thing is that it does work as in, it doesn't give you an error when mounting, but it still doesn't let you access it. It's weird.
As for the ro.secure, I just used installed bacon bits, and it did it for me.

There's an app for that! I'm using a market app called mount /system (rw / ro). You can just search mount rw in the market, its free too
Sent from my T-Mobile G2 using XDA App

Can't you just use adb remount?

It worked for me (GT-P1000, CM 10.1-20130218-experimental- cdesai)

[Q] How do you delete bloatware via adb

Ive done this before and for the life of me i cannot remember how to do this, and ive been searching xda and google for a half hour now, can anybody help me out. How do you remove stock apps via adb?
Thanks guys

adb shell
$ su
# mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
# cd /system/app
# rm xxx.apk
Replace xxx with app names. Case sensitive.
Edit: ignore $ and # when typing the commands

well this is weird, i know i have root but when i try those commands thru cmd on pc, i get error sh-3.2 it won't let me su but when i do it in terminal on phone it works fine

androidtoy09 said:
adb shell
$ su
# mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
# cd /system/app
# rm xxx.apk
Replace xxx with app names. Case sensitive.
Edit: ignore $ and # when typing the commands
Click to expand...
Click to collapse
Do I need to remove the odex files as well?
Sent from DynamikD's R00t3d & OC G2

Advisable to, yes. Also, reboot and clear cache in recovery for best results.

What is the command to list "dir" to get the app names? I've done this on my mytouch3g as well but rusty
Edit: It's "ls" lol.
Ok, so I just attempted this and get this error:
rm failed for Twitter.apk, Read-Only file system
Click to expand...
Click to collapse
And I also would like to remove these:
amazonmp3.apk
Email.apk
com.google.android.apps.finance-1.apk
Web2GoShortcut.apk
Twitter.apk
Web2GoShortcut.odex
Email.odex
What is a .odex file?
Sent from my T-Mobile G2 using XDA App

Make sure is not a typo.
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
Click to expand...
Click to collapse
Anyone know the name of the photobucket APK?

So now that we have Perma-ROOT, is it safe to delete these bloatwares without worrying about future OTA's?
And what's a .odex file? How do we delete this? Can we just delete these apps thru Titanium Backup and then boot into Recovery to clear cache?
*EDIT* - n/m i see how to delete the .odex files now

What's the .apk name for Photobucket?
*EDIT* - Got it... it's PbAndroid.apk

Need help!
Well those are the commands to remove a app how do you push a apk file back onto the /system/app. I want to push a Bluetooth.apk file from the old ROM to the new OTA and see if that helps with the Bluetooth issue I'm having with the new OTA.

If your perma rooted why not just install titanium backup and uninstall the app. If your temp rooted then you can only disable the app cuz if you delete the apps it'll only reappear after a reboot.

Becuz titanium does not let u remove apps, if it was that easy I think everyone would do it

fryrice8850 said:
Becuz titanium does not let u remove apps, if it was that easy I think everyone would do it
Click to expand...
Click to collapse
It doesn't? Then what the heck does titainium do when I press uninstall? This is a serious question.. not sarcasm.
Sent from my T-Mobile G2 using XDA App

Nvm u need to select "problems" and it will download busybox on ur g2 and then u can uninstall stock apps...

fryrice8850 said:
Nvm u need to select "problems" and it will download busybox on ur g2 and then u can uninstall stock apps...
Click to expand...
Click to collapse
Then it really is that easy... and everyone should do it.
Sent from my T-Mobile G2 using XDA App

how would the remount command change for the MyTouch4G?

nemesys571 said:
how would the remount command change for the MyTouch4G?
Click to expand...
Click to collapse
Don't think it would.
BTW you can also try this remount command for either, I was advised that it's preferable to use and it's certainly easier:
mount -o remount, rw /system

[HOWTO] Use extSdCard as Camera folder on Android 4.3

I recently (successfully) upgraded my Samsung i9505 with Janjan's Pure Google ROM version 4.3-2.1. While everything worked like a charm, I was frustrated with the little space I had in /sdcard, whereas I have a 32Gb sdcard plugged on that smartphone.
Android is GNU/Linux based, and the shell commands provided by most ROMs know how to handle mountpoints, especially mount -o bind, which permits to mount a directory on another directory. This is the trick you can use in order to have a lot more space within your DCIM directory:
Code:
# mkdir /storage/extSdCard/DCIM
# mount -o bind /storage/extSdCard/DCIM /sdcard/DCIM
There you go:
Code:
# df|grep DCIM
/mnt/shell/emulated/0/DCIM 29.5G 11.8G 17.7G 32768
Much better
Those commands are to be used with the root user. Obviously, you can use this trick for every other directory you'd like to extend. In order to make that mount point permanent, use the ROM's init script capabilities, for example with Janjan's ROM:
Code:
# mount -o remount,rw /system
# cat > /etc/init.d/99local
#!/system/bin/sh
/system/bin/mount -o bind /storage/extSdCard/DCIM /sdcard/DCIM
^D # press Control-D here
# chmod 755 /etc/init.d/99local
# mount -o remount,ro /system
Enjoy more space!

[Q] Need help deleting a directory

So here's the thing i've been exploring the possibilities of USBHost and decided to try an usb stick so i installed Paragon https://play.google.com/store/apps/details?id=com.paragon.mounter
It took me a while to get the hang of things. At first my usbstick was formatted in fat32. I specified in paragon i would like the default mount point to be USBStorage instead of /paragonNTFS. I made a small typo at first and named the folder usbStorage
now here comes the problem.
for some reason the app created 2 subfolders called sdb1 and sdb2 and i cannot remove them
Things i've tried:
cyanogenmod file manager in root access mode
-- delete directory > "This operation needs elevated permissions. Try switching to root access mode" (translated from dutch so wording may be a bit off
-- modifying permissions of folders > denied > changing permissions failed. for security reasons some filesystems, such as on sdcards do not allow changing permissions
Same problem for Astro file manager
Same problem when attaching the tablet to computer. parent directory (and sub dirs) get "removed" in windows but when checking the file system on the tablet, the opposite is true and the directories is still present
and now it's starting to piss me off. I want that folder "usbStorage" and it's subfolders "sdb1" and "sdb2" removed. so my guess is it'll have to be done by terminal commands but my terminal experience is ZERO.
in preperation of you guys helping me installed https://play.google.com/store/apps/details?id=jackpal.androidterm the same one used in cyanogenmod roms. I tried a bit of tinkering myself but prob doing something wrong
what i've tried (in sequence, --ok behind the command means it was succesfully executed)
su --ok
cd sdcard --ok
*rm -rf /usbStorage >> *rm: not found
rm -rf /usbstorage --ok, but folder was still present
rm -rf usbstorage --rm failed for usbStorage, Directory not empty
cd usbStorage --ok
rm -rf sdb1 --ok, rm failed for sdb1, Permission denied
at that point i gave up. I hope you guys can help me out
I do have paragon configured properly now and my USBstick in NTFS is getting recognised. Upon mounting of the usbstick, it now creates a folder called "USBStorage" where the contents of the usb stick is properly displayed.
so where are those android terminal / linux masters to help me out
only thing i can add is that when opening paragon with the stick attached but unmounted i do see a line above it /dev/block/sda1 but that doesn't seem to affect mounting in the specified directory

Bump, anyone? I want and need this folder removed
Verstuurd vanaf mijn Nexus 7 met Tapatalk

From my understanding of your post.
You are rooted and using cyanogenmod?
Did you try going into the app information and clear data?
In the app drawer hold the app and then drag it to App Info
Clear data.
Did that solve it? If not continue below.
Make sure you don't have the USB stick mounted and or plugged in.
Then go into terminal and type
su
Then type.
mount
The mount command shows all listed mount points. If you don't see the usbStorage or whatever mounted.
Then type.
busybox rm -rf usbStorage
Or whatever the main directory is...
For example directory is at.
/sdcard/usbStorage
cd /sdcard
rm -rf usbStorage
Let me know how you make out.
Sent from my Galaxy Nexus using xda app-developers app

nope, my phone is running CM 10.2 (not relevant to the question) this is the nexus section and its my nexus 7 2013 running stock rom but rooted yes that needs the folders removed.
The folders i need to delete according to the Nexus 7 mount main mount path SD content
main path: /storage/emulated/0 or /storage/emulated/legacy (both are the same according according to ParagonNTFS as a folder the mount path /sdcard/USBStorage = /storage/emulated/0/USBStorage or /storage/emulated/legacy/USBStorage
important lines?
/dev/fuse /storage/emulated/0/ fuse rw,nosuid,nodev,realtime, user_id=1023, default_permissions,allow_other 0 0
/def/fuse /storage/emulated/legacy fuse rw,nosuid,nodev,relatimeuser,user_id=1023, group_id=1023,default_permissions,allow_other 0 0
folders to delete are
/storage/emulated/0/usbStorage
/storage/emulated/0/usbStorage/sdb1 <= can select these just fine
/storage/emulated/0/usbStorage/sdb2
/storage/emulated/0/ParagonNTFS <= simply selecting this folder prompts CM manager "this operation needs elevated priviledges. Try switching to rootmodus, even when the CM filemanager already is in root mode
so i went
Opening terminal
su
cd sdcard (command ok)
cd usbStorage (commando ok)
busybox rm -rf sdb1
rm: can't remove 'sdb1': permission denied
Then i tried
cd /sdcard
rm -rf usbStorage
rm failed for usbStorage, Directory not empty
cd usbStorage
rm -rf sdb1
rm failed for sdb1, Permisison denied
busybox rm -rf sdb1
rm: can't remove 'sdb1': Permision denied
According to Cyanogen mod file manager:
Filesysteminfo:
Status: rw
linkpath?: /storage/emulated/0
Device: /dev/fuse
Type: fuse
Options: rw,nosuid,nodev,relatime,user_id=1023,default_permissions,allow_other
Dump / Pass: 0 / 0
even with the app ParagonNTFS uninstalled it doesnt work

hmm
try
close the app ParoganNTFS and uninstall it.
then try to delete those directories.
Also when you type
mount
does it show any of the directories you are trying to delete as mounted?
if it is try
umount /sdcard/usbStorage/sdb1
rm -rf /sdcard/usbStorage/sda1

were you able to delete the dir?
I had the same problems under very similar circumstances. Stickmount rather than paragon. The only way I could delete the dir was to boot into recovery (team win recovery project v2.7.1.1) and delete it with TWRP's terminal command. Something in the OS apparently locks on to the mount and simply will not let it go ever. It has to be done before android starts. It's very annoying. I am beginning to really be disgusted with many of the decisions google is making with regard to android. Why do they hate sdcard expansion so much? its absurd.
---------- Post added at 04:22 AM ---------- Previous post was at 04:17 AM ----------
Oh and by the way, even though the OS latched on to that folder as if its very existence depended on it, I was never able to even see the files on the USB memory stick with any file explorer. Worked just fine in kit kat and before. In some ways lollipop really sucks.

remount with wr privileges. How?

Hello everyone, I've been using android since Eclair and I had a couple of different brands under my ownership. Sony Ericsson, Samsung, Alcatel...
I've always been rooting my phones. After that, each time I needed rw privileges in order to be able to delete files (like built-in apps), place ringtones, alarms and notifications sounds directly into /system/media/audio, rename or backup system files etc., I was using a simple command from a terminal app or via ssh from a desktop giving this syntax:
mount -o remount, rw /dev/block/mtdblock3 /system
Then, until next reboot I could write in /system.
Unfortunately since I got G3 this command won't work. Apparently, either lollipop's or LG's partitions are a bit different that the usual...
After looking around for a while, I came up with a page which shows that this command "ls -al /dev/block/platform/msm_sdcc.1/by-name", lists all partitions' paths by label and that according to the list, /system corresponds to mmcblk0p40. So I was thinking of trying the command a bit altered, like this:
mount -o remount, rw /dev/block/mmcblk0p40 /system
Since I don't have good knowledge of linux -I can't even tell if the old syntax is not working because of LG's implementation or of android's new version (lollipop)- I'd just like someone who has already done this to confirm that I'm right and it works. I'd really not like to brick the phone atm. I feel too old for this s...
Thanks, George...
P.S.: Now, if someone would be kind enough to provide an in-depth explanation of how I could always find by myself (in any newer version of android and any different android implementation), which partition is the appropriate one to use in this command in order to obtain rw for /system, that would be more than welcome!
Edit: I should have mentioned this to avoid getting answers about 3rd party apps which do those stuff like root explorer: I'm looking for a solution, not a workaround. I need the syntax of the command, not a list with apps which do what I'm trying to do using terminal. But thanks adamzki anyway...

Use root explorer pro. That's it.

This command is enough to mount /system as rw;
Code:
mount - o rw,remount /system

forumber2 said:
This command is enough to mount /system as rw;
Code:
mount - o rw,remount /system
Click to expand...
Click to collapse
That's really strange, I had used "mount -o remount,rw /system /system" and it didn't work
I now used "mount -o remount,rw /system" and it works! I'll never understand Linux...
Thanks anyway man!
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