remount system rw: can't find / in fstab

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Nik posted Mar 6, 23:38:

Hello guys,
I'm experimenting with SamplerBox and I think it's great. There is one problem though that keeps haunting me over and over again: At first, the command "mount -o remount,rw /" usually works and I can mount the filesystem writable to change stuff. But at some point, I'm getting the error message "can't find / in fstab" and I can't remount the filesystem anymore, therefore not change anything anymore.
I've read a lot about it, and all threads I found in Linux forums pretty much say that there's something missing in my fstab. As I can't edit my fstab (read-only filesystem), my only option at this point is to sweep the SD card with the original image and start from scratch.

Now, I'm sure that:

  • I did never delete anything in my fstab.
  • I see only one line in fstab on the fresh image (opening with "nano fstab") which mounts my Sample USB drive
  • The error message occured to me at least once BEFORE even mounting the filesystem once as writable.
  • My mtab shows the USB stick as the only mounted drive. No SD card with root filesystem (I don't know if that's normal).
  • blkid shows a "ROOT" labelled device at / that cannot be unmounted (probably my filesystem?)

Does anyone have an idea what I can do about this? Any help is much appreciated.
And Joseph, thanks for the great project.
Best regards, Nik

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Nik posted Mar 9, 15:35:

No one? :(

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Gabor Kita posted Mar 22, 09:54:

Hi Nik!

solution:

mount /dev/mmcblk0p1 /boot
mount -o remount,rw /dev/mmcblk0p2 /

...

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