Coby Kyros 7042-4 system space issue

[Hibtek]

Hi,

Thanks to everyone for the help, I have been reading this site and have got much help, but im stuck and need some assistance

I have tried to root my tablet 7042-4, and all seemed to go well, but its does not seemed to have actually done anything.

I followed the instructions here http://www.androidtablets.net/forum...ead-first-development-index-root-utility.html

Its all connected ok and it copied the files ok, but I think the rooting process ran out of space on /system

shell@android:/data/local/tmp $ df
df
Filesystem Size Used Free Blksize
/dev 407M 44K 407M 4096
/mnt/asec 407M 0K 407M 4096
/mnt/obb 407M 0K 407M 4096
/system 251M 251M 4K 4096
/data 1G 249M 1G 4096
/cache 503M 8M 495M 4096
/mnt/sdcard 4G 68M 4G 4096
/mnt/extsd 7G 168K 7G 4096

and now su is too small and I get a segmentation fault when I run su

shell@android:/data/local/tmp $ dir /system/xbin/su
dir /system/xbin/su
-rwsr-sr-x root root 4096 2013-06-08 00:08 su

shell@android:/data/local/tmp $ su
su
Segmentation fault
original su is about 21k

139|shell@android:/data/local/tmp $ dir
dir
-rwxrwxrwx shell shell 843503 2013-06-06 21:06 Superuser.apk
-rwxrwxrwx shell shell 33554432 2013-06-07 23:46 boot.img
-rwxrwxrwx shell shell 16777216 2013-06-07 23:46 bootloader.img
-rwxrwxrwx shell shell 1075144 2013-06-06 21:06 busybox
-rwxrwxrwx shell shell 216 2013-06-06 21:06 install-cwm-recovery.sh
-rwxrwxrwx shell shell 222 2013-06-06 21:06 install-stock-recovery.sh
-rwxrwxrwx shell shell 10276 2013-06-06 21:06 mempodroid
-rwxrwxrwx shell shell 105 2013-06-06 21:06 reboot-recovery
-rwxrwxrwx shell shell 33554432 2013-06-07 23:46 recovery.img
-rwxrwxrwx shell shell 445 2013-06-06 21:06 root.sh
-rwxrwxrwx shell shell 22364 2013-06-06 21:06 su
-rwxrwxrwx shell shell 110128949 2013-06-07 23:46 system.tgz
shell@android:/data/local/tmp $

The Tablet does boot up and work ok, so no problems there.

Finally managed to get the /system in rw mode, but of course can not edit or move anything in there
is there a way of increasing the size at all?

/dev/block/nandd /system ext4 rw,relatime,user_xattr,barrier=0,data=ordered 0 0

Thanks for any help

Chris

 

[vampirefo.]

You need to delete some stuff from system.

remove from here /system/vendor/modules

8192cu.ko
bcm40183_dhd.ko
bcm40183_fw.bin
bcm40183.hcd
ar6302.ko
ar6003.ko

that should get you enough room if you need more room remove more files, that you don't need.

 

[Hibtek]

Hi,

I keep getting access denied, I guess this is because the su is giving segment errors as its only 4k

I tried running su from a different path, but just get the below

shell@android:/system/vendor/modules $ /data/local/tmp/su -c "rm /system/vendor/modules/8192cu.ko"
c "rm /system/vendor/modules/8192cu.ko" <
rm failed for /system/vendor/modules/8192cu.ko, Permission denied
255|shell@android:/system/vendor/modules $

Am I missing something simple?

I am doing this from an adb shell, should I be doing it a different way?

Thanks

 

[vampirefo.]

you said you have system mounted as rw, (read and write, add and remove) so how did you mount system rw without being root?

 

[Hibtek]

Hi,

I modified this command and managed to free up some space, I removed the .ogg files from the ringtones and a couple of the files you said

/data/local/tmp/mempodroid 0xd7cc 0xad27 rm FILES

 

[Hibtek]

Sorry, I was trying to run the root_restore.bat, as that failed I was running the commands manually from the batch file, that command must of worked, so I answered no to the reboot, but now its working a bit better, its now got another issue which is a volume issue, you touch the tablet near the volume buttons and the volume goes up on its own :-(

Oh well, Thanks for you pointers, im sure they wont be the last

Its 3:30 am, and im getting tired now

Chris

 

[vampirefo.]

its now got another issue which is a volume issue, you touch the tablet near the volume buttons and the volume goes up on its own :-(

no ideal on that one.

anyway get some sleep, you might see things clearer later.