[General Questions and Answers] Yakchimi:
Helo guys, me again with this RK3066 again, but this time i am more accurate about the issue with the "E:can't mount " blá blá blá...

My device don't mount, in CWM, no one partition, except for itself and external-sd (removable).

Looking more for some reason, i think that i am in the right way, but first of all i need your help.

I get the recovery.log, in /tmp folder, and what you will see is excatly the issue i confront.

Starting recovery on Fri Jun 10 19:19:38 2016

can't open /dev/tty0: No such file or directory

framebuffer: bpp 16 r 11 g 5 b 0
framebuffer: fd 3 (800 x 480)

CWM-based Recovery modified by androtab.info v6.0.3.1

recovery filesystem table

=========================

0 /tmp ramdisk (null) (null) 0

1 /boot mtd boot (null) 0

2 /cache ext4 /dev/block/mtd/by-name/cache (null) 0

3 /data ext4 /dev/block/mtd/by-name/userdata (null) 0

4 /kernel mtd kernel (null) 0

5 /misc mtd misc (null) 0

6 /recovery mtd recovery (null) 0

7 /sdcard vfat /dev/block/mtd/by-name/user (null) 0

8 /external_sd vfat /dev/block/mmcblk0p1 /dev/block/mmcblk0 0

9 /sd-ext auto /dev/block/mmcblk0p2 (null) 0

10 /system ext4 /dev/block/mtd/by-name/system (null) 0

W:Unable to get recovery.fstab info for /datadata during fstab generation!

W:Unable to get recovery.fstab info for /emmc during fstab generation!

I:Completed outputting fstab.

I:Processing arguments.

E:Can't find misc

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/command

E:Can't find misc

I:Checking arguments.

Warning: No file_contexts

I:device_recovery_start()

Command: "/sbin/recovery"

ro.boot.console=ttyFIQ0

ro.serialno=
ro.bootmode=unknown

ro.baseband=unknown

ro.bootloader=unknown

ro.hardware=rk30board

ro.revision=0
r
o.emmc=0

ro.boot.emmc=0

ro.factorytest=0

ro.secure=1

ro.allow.mock.location=0

ro.debuggable=1
persist.sys.usb.config=adb

ro.build.id=JDQ39E

ro.build.display.id=rk3066-userdebug 4.2.2 JDQ39E eng.fun.20130427.223241 test-keys

ro.build.version.incremental=eng.fun.20130427.223241

ro.build.version.sdk=17

ro.build.version.codename=REL

ro.build.version.release=4.2.2

ro.build.date=Sat Apr 27 22:33:53 JST 2013

ro.build.date.utc=0

ro.build.type=userdebug

ro.build.user=fun

ro.build.host=ubuntu

ro.build.tags=test-keys

ro.product.model=RK3066

ro.product.brand=rockchip

ro.product.name=rk3066

ro.product.device=rk3066

ro.product.board=rk30board

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=Rockchip

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=rk30xx

ro.build.product=rk3066

ro.build.description=rk3066-userdebug 4.2.2 JDQ39E eng.fun.20130427.223241 test-keys
ro.build.fingerprint=rockchip/rk3066/rk3066:4.2.2/JDQ39E/eng.fun.20130427.223241:userdebug/test-keys

ro.build.characteristics=default

ro.cm.device=rk3066

keyguard.no_require_sim=true

ro.com.android.dateformat=MM-dd-yyyy

ro.carrier=unknown

dalvik.vm.lockprof.threshold=500

net.bt.name=Android
net.change=net.bt.name

dalvik.vm.stack-trace-file=/data/anr/traces.txt

ro.cwm.forbid_format=/misc,/kernel,/recovery

init.svc.ueventd=running

init.svc.recovery=running

service.adb.root=1

init.svc.adbd=running

I:Checking for extendedcommand...

I:Skipping execution of extendedcommand, file not found...

W:failed to mount /dev/block/mtd/by-name/userdata (No such file or directory)

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/log

E:Can't open /cache/recovery/log

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/last_log

E:Can't open /cache/recovery/last_log

E:Can't find misc

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

W:Can't unlink /cache/recovery/command

W:failed to mount /dev/block/mtd/by-name/user (No such file or directory)

E:Can't mount /sdcard/

W:failed to mount /dev/block/mtd/by-name/user (No such file or directory)

W:failed to mount /dev/block/mmcblk0p1 (No such file or directory)

W:failed to mount /dev/block/mmcblk0 (No such file or directory)

E:Can't mount /external_sd/

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/log

E:Can't open /cache/recovery/log

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/last_log

E:Can't open /cache/recovery/last_log

E:Can't find misc

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

W:Can't unlink /cache/recovery/command

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/log

E:Can't open /cache/recovery/log

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/last_log

E:Can't open /cache/recovery/last_log

E:Can't find misc

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

W:Can't unlink /cache/recovery/command

I:Trying /dev/block/mtd/by-name/user on LUN file /sys/class/android_usb/android0/f_mass_storage/lun/file

W:Unable to write to ums lunfile /sys/class/android_usb/android0/f_mass_storage/lun/file (No such file or directory)

I:Trying /dev/block/mmcblk0 on LUN file /sys/class/android_usb/android0/f_mass_storage/lun1/file

W:Unable to write to ums lunfile /sys/class/android_usb/android0/f_mass_storage/lun1/file (No such file or directory)

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

Error mounting /cache!

W:failed to mount /dev/block/mtd/by-name/userdata (No such file or directory)

Error mounting /data!

W:failed to mount /dev/block/mtd/by-name/user (No such file or directory)

Error mounting /sdcard!

mount: mounting /dev/block/mmcblk0p2 on /sd-ext failed: No such file or directory

Error mounting /sd-ext!

W:failed to mount /dev/block/mtd/by-name/system (No such file or directory)

Error mounting /system!
W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/log

E:Can't open /cache/recovery/log

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

E:Can't mount /cache/recovery/last_log

E:Can't open /cache/recovery/last_log

E:Can't find misc

W:failed to mount /dev/block/mtd/by-name/cache (No such file or directory)

W:Can't unlink /cache/recovery/command

After you take a look, you can say what is the problem? my device?

I think, the problem is that this Modified CWM don't read ext4, cause my external_sd is in vfat and it mount.

even my internal_sd (not removable storage) is in vfat it can't read, and i don't know if this is the excatly problem.

All the /dev/block/... aren't mounting.

If i try to mount with adb every time return that message E:can't mount...

so, the last thing i can try to do is convert internal storage into vfat, fat or even ext2.

Note, my device is working perfectly when i turn it on, but in CWM or another recovery (stock, or different version of modified CWM - don't ask for TWRP, touch don't work) it return the same thing.

You can think "why you are trying to do with this?", can i test custom rom in it? how custom rom will be flashed if /system, /cache, /data, and others partitions don't mount?! even a restore is impossible to do this way.

"why you don't use RKtool to flash it?" - Volume up button broken, rsrsrs, i know, it's a lot of lucky.

For now, let me test if converting internal partition into ext2 or vfat/fat can solve.

So, i need you now, how can i convert internal storage (no removable - /data, /system, /cache) from ext4 into ext2 or lower?

Thanks a lot to those who help me, and thanks a lot to XDA.

The device name is DL 3003, 7".

Here is the developer firmware link:

http://downloads.dl.com.br

the serial is 3003.

(sorry for my bad english - Brazilian here)