Firmware backup: "cp: cannot create regular file -> read-only filesystem"

Open queermeet-dev opened this issue 7 months ago • 2 comments

I always get this error, I tried NTFS, fat32 and exFAT

The USB stick is 64gb

Acer Chromebook 315 CB315-3H-C0EV

Jun 30 '25 19:06 queermeet-dev

well, it's because the first partition on your USB is being mounted read only, not much the script can do about that.

Acer Chromebook 315 CB315-3H-C0EV

as I stress repeatedly in the documentation, this is meaningless/useless to me. ChromeOS board name as reported by the script is all that matters.

Jun 30 '25 20:06 MrChromebox

I had the same problem and found a work around. Although I wasn't able to find out why the device was mounted in read only mode. I was able to fix my problem by manually mounting the usb drive to /tmp/mydrive before starting firmware-util.sh

Oct 04 '25 13:10 mainbrain