I have an Atrix on AT&T. Which means there's a bootloader encryption, and the carrier prevents non-market apk installations, which I have resolved since my phone is rooted and I have changed the boot animation already.
In order to do these things, I found Ghost Commander that would let me chmod my system directories...which is fine, but I feel kind of gimped that I can't do it on terminal.
Basically, what I want to be able to do is remount /system as rw using terminal.
This method doesn't work on both terminal and emulator on my phone. I have done:
Terminal:
Code:
sudo su
cd [sdk directory]
./adb devices
./adb shell
su
mount -o remount,rw -t ext3 /dev/block/mmcblk0p12 /system
and this is where I get stuck because I just get an Invalid argument error.
Here is some info about my sytem -
Usage: mount [-r] [-w] [-o options] [-t type] device directory
/dev/block/mmcblk0p12 /system ext3 ro,noatime,nodiratime, data=ordered 0 0
Been searching for the answers for a while now, and now I'm here. What am I doing wrong? Thanks
there
Code:
mount -o remount,rw /dev/mmcblk0p12 /system
back
Code:
mount -o remount,ro /dev/mmcblk0p12 /system
Hmm, well at least I didn't get any errors this time.
I didn't get a confirmation or that it did anything at all. Is that normal?
Run mount with no parameters and look for the line with that device name, should see rw in that line instead of ro.
Sent from my MB860 using XDA App
Thanks guys, but I resorted to busybox chmod command instead lol
I tried this and got no errors, and using cat /proc/mounts/ I see the path as rw. But when I try to copy I still get the read only file system error.
**Lol, I had the phone in usb storage mode and had to switch it to Windows Media Sync**
Hello,
I am a newbie on this site and android development. I want to installa nd run openvpn to my emulator. I am using these 2 sites for reference :
1)
chengdu110.wordpress com
2010/08/14
want-openvpn-work-on-android-device
2)
android.modaco
content
software
291919
openvpn-on-android/
I am facing couple of problems. From 1st site, I can't copy busybox to system/xbin folder. I get no access, permission failure, etc such messages. Am stuck at this point and thus can't proceed ahead. In Part 2 also need to access /system/lib/ where again problem comes.
In site 2, same cannot access /system/lib or /system/bin folder. Even I can't mount like this : ADB shell mount /system
Command mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system from site 1 was successful.
Even I face problems with cp cmd. Just cp libcrypto.so libcrypto-orig.so doesn't work. I got to give "/system/lib/libcrypto.so cp libcrypto.so libcrypto-orig.so" this format only it copies. Though in the above case "Permission denoed" occured for system/lib. But this foramt worked while copying busybox file.
Can anyone help me with the permission to system folders /xbin, /lib, /bin. Why is mounting required ? Why I am not able to mount directly as mount /system; I need to give full command mount -o rw, .... -t .... /system. I am not sure what all to give in the "..." place - had just copied it from site 1.
Any help, guidance is highly appreciated. I use Eclipse DDMS and Android emulator 2.3.3. Please try to help me.
You can fix wifi channel 12-13 support by setting the wifi_country_code to EU.
You need a rooted device and sqlite3 to fix (attached).
Unpack the attached zip and run fix_wifichannel_EU.bat (Windows only)
or with linux:
Code:
adb shell
su
mount -o rw,remount /dev/block/mmcblk0p3 /system
exit
adb push bin\sqlite3 /system/bin
adb shell
su
chmod 6755 /system/bin/sqlite3
sqlite3 /data/data/com.android.providers.settings/databases/settings.db "INSERT INTO secure (name, value) VALUES ('wifi_country_code', 'EU');"
reboot
Ohhhh it's good to see you here in the Iconia section!
I used to be a user of your great Desire Kernels/roms.
Hope to see some work from you soon.
richardtrip said:
You can fix wifi channel 12-13 support by setting the wifi_country_code to EU.
You need a rooted device and sqlite3 to fix (attached).
Unpack the attached zip and run fix_wifichannel_EU.bat (Windows only)
or with linux:
Code:
adb shell mount -o rw,remount /dev/block/mmcblk0p3 /system
adb push bin\sqlite3 /system/bin
adb shell chmod 6755 /system/bin/sqlite3
adb shell sqlite3 /data/data/com.android.providers.settings/databases/settings.db "INSERT INTO secure (name, value) VALUES ('wifi_country_code', 'EU');"
adb shell reboot
Click to expand...
Click to collapse
Thank you very much and great to see you here
OT: can you help us with the recovery issues ??
Thanks in advanced. I will try sometime in the near future.
Enviado desde mi GT-I9000B usando XDA Premium App
so you got this tablet, richard =P Wonder when we will be able to start playing with custom rom =)
Btw, I notice that a huge amount of RAM is consumed and the maximum amount of RAM freed I have ever got is 440MB. Do you know what happened to the rest?
lpachuong said:
so you got this tablet, richard =P Wonder when we will be able to start playing with custom rom =)
Btw, I notice that a huge amount of RAM is consumed and the maximum amount of RAM freed I have ever got is 440MB. Do you know what happened to the rest?
Click to expand...
Click to collapse
The rest of the ram is reserved for video on boot.
I thought so, but don't you think that is too much out of 1GB ram? I found the device is laggy if ram goes under 350MB. Hope modded kernel can help optimize ram.
sweet
Nicely done! It works. Yea it is good to see you here' meaning we have somebody who knows a thing or two about android development.
W
Fix worked!
For some strange reason adb remount command didn't worked and adb wasn't able to push sqlite3 file to /system/bin even after remounting /system rw from the device itself. I had to push it to sdcard and then move it to /system/bin.
By the way, channel 13 is working fine now.
Thx
Hi Richard,
It's good to see such a great dev interested in the A500 (I have a Desire). <vbg>
EDIT: I can confirm that this works!
I cannot remount /system, either via ADB nor via a shell (on the device itself). In both cases, I get...
Code:
mount -o rw,remount /dev/block/mmcblk0p3 /system
mount: Operation not permitted
[Edit: worked with a terminal, but forgot to SU first, and I was typing mmcblkop3, not mmcblk0p3 !!]
I tried to be clever (NB: I don't have a SD card installed):
Code:
adb shell mount -rw /dev/block/mmcblk0p3 /mnt/external_sd
Usage: mount [-r] [-w] [-o options] [-t type] device directory
That's the extent of my *nix skills...
Any ideas?
-Dave
zxdavb said:
Hi Richard,
It's good to see such a great dev interested in the A500 (I have a Desire).
I cannot remount /system, either via ADB nor via a shell (on the device itself). In both cases, I get...
Code:
mount: Operation not permitted
I tried to be clever (NB: I don't have a SD card installed):
Code:
adb shell mount -rw /dev/block/mmcblk0p3 /mnt/external_sd
Usage: mount [-r] [-w] [-o options] [-t type] device directory
That's the extent of my *nix skills...
Any ideas?
-Dave
Click to expand...
Click to collapse
Try su before the mount command.
Edited the procedure in the first post so try that (should work now).
Sent from my A500 using XDA Premium App
zxdavb said:
Hi Richard,
It's good to see such a great dev interested in the A500 (I have a Desire). <vbg>
I cannot remount /system, either via ADB nor via a shell (on the device itself). In both cases, I get...
Code:
adb shell mount -o rw,remount /dev/block/mmcblk0p3 /system
mount: Operation not permitted
I tried to be clever (NB: I don't have a SD card installed):
Code:
adb shell mount -rw /dev/block/mmcblk0p3 /mnt/external_sd
Usage: mount [-r] [-w] [-o options] [-t type] device directory
That's the extent of my *nix skills...
Any ideas?
-Dave
Click to expand...
Click to collapse
Just do
Code:
su
mount -o remount,rw /system
daveba said:
Just do
Code:
su
mount -o remount,rw /system
Click to expand...
Click to collapse
Thanks!
For the beginners (like me): I noticed that /system was set back to read-only on reboot...
Works brilliantly. Thanks.
thx - but I trust editing the build.prop in Root Explorer should also do the job for those who don't want to mess with adb and commands.
hi
can anyone tell me whats this fix for?
is it going to make wifi receiver even better?
thx..
he_stheone64 said:
thx - but I trust editing the build.prop in Root Explorer should also do the job for those who don't want to mess with adb and commands.
Click to expand...
Click to collapse
yes,
add this line
ro.wifi.country=EU
and reboot.
i have this message:
'Unable to detect a device over adb'
I've connected my nexus S via usb cable, i've tryed with the usb usb storage on an off, and i get the same message.
I'm using windows / x64.
Dexter_nlb said:
yes,
add this line
ro.wifi.country=EU
and reboot.
Click to expand...
Click to collapse
i've done that but i canot save the file i get the message that it's a read only file system.
how can i gain write access to that file??
Thanks the fix_wifichannel_EU.bat in the zip worked like a charm. Channel 13 now works on my Asus Eeepad Transformer purchased from the US as well.
I have a rooted stock kitkat nexus 4. I've been trying to use various sql editors to edit some values and it always fails, despite getting the popup that root has been enabled for the application.
It looks like the problem is /system is mounted ro and never manages to get remounted rw.
I tried running an app that does nothing but remount /system, which gets the same success popup but also does not change the mount to rw.
If I adb to shell, I get a non-root shell and "su" just hangs.
All the apps that want su access say they have succeeded in getting it. Ideas?
I have no idea. You may need to use a custom ROM? Your best bet is mounting it in recovery and editing the filesystem from outside.
Try to use es file explorer. It has an option to mount system rw. Always worked for me.
Sent from my Nexus 4 using xda app-developers app
Ok, I know a little bit more. The reason my adb shell was hanging on "su", was the supersu popop on the phone which I wasn't looking at.
Now I can get a root shell.
The interesting thing is that how the mount ro/rw option appears is dependent on the permission of the process. For example:
# adb shell
[email protected]:/ $ mount | grep system
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0
[email protected]:/ $ su
[email protected]:/ # mount |grep system
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 rw,seclabel,relatime,data=ordered 0 0
That said, its not so clear if the mount permission is what I'm actually fighting. I'm trying to use sqlite to toggle preferred network mode.
One way to do that is by installing sqlite3 in /system/bin. There is an app for that but it fails, I assume because of the mount but maybe for some other reason.
Now that I have a root shell I could install sqlite3 manually, but I haven't been able to find a copy of the binary.
Ok, found a working sqlite3, installed it manually from the shell and all is well. In case anyone else is looking for one, I got it at
http://forum.xda-developers.com/attachment.php?attachmentid=1236218&d=1343863492
Hey Guys,
Just wanted to share with you the NFS-Module I build today.
Maybe someone can use it.
You can copy the Modules wherever you want and then let it load automatically by an APP.
For example with Mount Manager
Or you can load them manually in this order by:
Code:
su
insmod /path/to/module/sunrpc.ko
insmod /path/to/module/lockd.ko
insmod /path/to/module/auth_rpcgss.ko
insmod /path/to/module/nfs.ko
Mounting can be done in Terminal, with "busybox mount". Normal mount seems not to work:
Code:
su
busybox mount -t nfs -o hard,intr,nolock,sync,vers=3,exec 192.168.1.1:/path/to/share /path/to/mountpoint
Unfortunately, since JB Android doesn't make mounts made by root visible for other users.
So even if you mount via Terminal or with Mount Manager, you won't see anything as normal user.
You can see them only as root.
If you want to mount shares for normal user, do the following:
Code:
su -c setenforce 0 && su --mount-master -c busybox mount -t nfs -o hard,intr,nolock,sync,vers=3,exec 192.168.1.1:/path/to/share /path/to/mountpoint
-