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[Q]"I:Can't format unknown volume: /external_sd" in CTRecovery

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Join Date: Aug 2012
Default [Q]"I:Can't format unknown volume: /external_sd" in CTRecovery

Hi XDA Users,

Before asking help, i would like to say that I'm newbies, i'm little bit lost here, and i don't know if i have the permission to post this question here. Sorry if i make a mistake

I have an error when i try to launch a CWM(Edify) script. :
I:Can't format unknown volume: /external_sd
I tried to change updater-binary(No change) and I tried to use empty updater-script: this error is not linked at a command line in my script(No change)

The recovery used is Carliv Touch Recovery porting on my device(Wiko Highway)(link: he works without problems, but i noticed that i have some bad line in my /etc/fstab. I tried to repack a new .img whith good /etc/fstab version but my device was stay on boot image. I have restore my first recovery.img

My question is: CWM try to mount all partition in /etc/fstab at start of updater-script? And if yes, can i disable this function.
I you see something for my recovery problems, i take all tips!

Thanks for you attention,
PS: I have forgot to say that I'm french with a very bad english level, but don't worry, i work on this x)
Junior Member - OP
Thanks Meter 0
Posts: 3
Join Date: Aug 2012

I have finally found the error in my recovery: my Fstab has some bad device. Now, it's work!

but update-binary will not work

I have this:
-- Installing: /sdcard/
Finding update package...
I:Update location: /sdcard/
Opening update package...
Installing update...
E:Error in /sdcard/
(Status 0)
Installation aborted.
I:Can't partition unsafe device: /dev/block/mmcblk0p8
I:Can't format unknown volume: /external_sd
I:Can't format unknown volume: /emmc
For info, this is my /etc/fstab:
# mount point fstype device [device2]

/boot emmc /dev/bootimg
/cache ext4 /dev/block/mmcblk0p6
/data ext4 /dev/block/mmcblk0p7
/misc emmc /dev/misc
/recovery emmc /dev/recovery
/system ext4 /dev/block/mmcblk0p5
/sdcard vfat /dev/block/mmcblk0p8
/sd-ext auto /dev/block/mmcblk0p2
I feel that the error is in recovery... but i don't found an fonctionnal ROM for my phone(remember: Wiko Higway)

Thanks for you attention
Junior Member
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Sent from my One S using xda app-developers app
Senior Member
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Join Date: May 2013
Can you please give me your recovery for the Highway?

Thank you.
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