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HomeClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288
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Contributor
2013/04/28
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Hi there!
I managed to swap the internal sd-card (with 11 GB free space) with my external sd-card (in my case a class 10 32GB card, formatted with FAT32). These are the steps to do this (you have to have a functional adb):
#kill old adb-processes
adb kill-server
# look if tablet is viewable per adb
adb devices
# copy vold.fstab to local harddisk
adb pull /system/etc/vold.fstab
# now you have to edit the vold.fstab as follow:
#Original:
dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nandj
dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mmc_host /devices/platform/sunxi-mmc.0/mmc_host
#cards swapped:
dev_mount sdcard /mnt/sdcard auto /devices/platform/sunxi-mmc.1/mmc_host /devices/platform/sunxi-mmc.0/mmc_host
dev_mount extsd /mnt/extsd auto /devices/virtual/block/nandj
# mount system-partition read/write
adb shell mount -o remount,rw /system
# write changed vold.fstab to system-partition
adb push vold.fstab /system/etc/
# reboot tablet to apply changes
adb reboot
After these steps the internal sd is fully swapped with the external and in my case I can use full 32GByte as "internal sd". 
Even the TWRP is functional and I can make backups/restores of the full system. The only thing to think of is that in TWRP the sd-cards aren't swapped and you have to choose "backup to external sd" if you want to make a backup to the big 32GByte sd-card.
The following users say thank you to Balrog for this useful post:
admin
admin
2010/09/11
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Thanks for the tip.
I may include that modificaiton in an ArcTools package if there is enough interest from forum members here, please let us know !
Cheers.
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Contributor
2013/04/28
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The modification runs also with the new firmware 3.2 on my Onda V973 V1. 
Only one thing to think of is:
First flash normaly the firmware and do the mod afterwards since at flashing the internal sd-card gets deleted (firmware 3.2 changes the partitions and formats all new).
Do not apply the mod on the firmware itself.
2013/05/18
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Yes please, Acrtool is a great help to us! This mod looks very useful!
2013/05/31
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Balrog said
The modification runs also with the new firmware 3.2 on my Onda V973 V1.Only one thing to think of is:
First flash normaly the firmware and do the mod afterwards since at flashing the internal sd-card gets deleted (firmware 3.2 changes the partitions and formats all new).
Do not apply the mod on the firmware itself.
I flashed to firm 3.2 and did as above but it does not mount any media and does'n start after shut down. It fast boots after mod with adb reboot but if I check disk space it crashes and says no media mounted.Am I missing somethin? Thx!
Contributor
2013/04/28
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Then you must have a typo in your /system/etc/vold.fstab or for example edited the file under windows and saved it not as unix-textfile but as windows-textfile.
I think you have to flash firmware 3.2 again and try it again.
Contributor
2013/04/28
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For easier installation here are the swapped vold.fstab (You have to rename it to vold.fstab of course). You only have to exchange it under /system/etc/ with the existend vold.fstab and reboot.
It runs fine under Firmware 3.2.1.
2013/07/06
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Hi guys I had a lot of problem with my onda v972 every time after few days/weeks of working fine the system just stops working and i always have to instal rom through phoenix all over again. I tried to instal all kinds of rooms i could find and the problem just came all over again. I think it is because my internal memory has some problems ( i think its all happend after I instal too many thinks on internal memory) I realy hope this solution with swaping internal and external memory will solve the problem or maby you have enother solution for that sytuation?
2013/05/30
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fbartosz said
Hi guys I had a lot of problem with my onda v972 every time after few days/weeks of working fine the system just stops working and i always have to instal rom through phoenix all over again. I tried to instal all kinds of rooms i could find and the problem just came all over again. I think it is because my internal memory has some problems ( i think its all happend after I instal too many thinks on internal memory) I realy hope this solution with swaping internal and external memory will solve the problem or maby you have enother solution for that sytuation?
I just got this week a new tablet V973 v2 with exactly the same problem as yours. But tablet has this problem from beginning, with a fresh start and no so many installs than yours.
And I am sure the problem is the internal memory partition because when I receive tablet for the first time with the oficial android 4.4 rom, and the 10GB partition was missing. Only get the first partition with 2GB but not the second one. However, after restore to factory default, I got all partitions ok and start using the tablet. In few hours, it cannot power on, freezes on the Onda logo.
Everytime I try to restore to defaults or install a new ROM, I get the tablet back to life again, but after install a few apps, again cannot restart.
Could you solve this problem?? Please advice!!
2013/07/06
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Sorry I've got the same problem and still didn't find the solution Anyone can help us ? Is there any chance to change the internal memory ?
2014/12/27
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Hi, i have a V711s and i found a fstab.sun6i file in the device root (the only file with the fstab name) but after switching the lines saving and rebooting i just find the original version of the file there instead and no change. Any help please?
# Android fstab file.
#<src> <mnt_point> <type> <mnt_flags and options> <fs_mgr_flags>
# The filesystem that contains the filesystem checker binary (typically /system) cannot
# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK/dev/block/by-name/system /system ext4 ro wait
/dev/block/by-name/cache /cache ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1 wait,check
/dev/block/by-name/databk /databk ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1 wait,check
/dev/block/by-name/data /data ext4 noatime,nosuid,nodev,nomblk_io_submit,barrier=1,noauto_da_alloc wait,check,encryptable=/dev/block/by-name/databk
/devices/virtual/block/nandj /mnt/sdcard vfat rw,relatime,fmask=0000,dmask=0000 wait,check,noemulatedsd,voldmanaged=sdcard:auto
/devices/platform/sunxi-mmc.0/mmc_host /mnt/extsd vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=extsd:auto
/devices/platform/sunxi-mmc.1/mmc_host /mnt/extsd vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=extsd:auto
/devices/platform/sw-ehci.1 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
/devices/platform/sw_hcd_host0 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
/devices/platform/sw-ohci.1 /mnt/usbhost1 vfat rw,relatime,fmask=0000,dmask=0000 wait,check,voldmanaged=usbhost1:auto
/dev/block/zram0 none swap defaults zramsize=83886080
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