No USB device available to store firmware backup

[winhex]

Hi! I have Acer Chromebook 14 (CB3-431) and I'd like to install Full ROM firmware. When I do it, your script prompts me to create a firmware backup, but I can't do it, because I always get this error: No USB device available to store firmware backup. I tried several different flash drives and an external hard drive, but nothing has changed. Why can't I create a firmware backup? p.s. Now in my chromebook installed GalliumOS 2.1, if this is important.

[MrChromebox]

the script just lists unmounted USB devices which are FAT/FAT32 formatted; you may need to manually unmount the USB drive after inserting it but before running the script

[winhex]

it's not too obvious, I think)

[MrChromebox]

@winhex not sure what you're referring to exactly

[winhex]

In my mind this message can be made more informative. For example, indicate that the user must unmount the usb device or something like this

[MrChromebox]

@winhex did that fix the issue for you? I've been unable to reproduce it myself

[mildred]

I had a similar issue and it comes from the fact that the script is parsing the output of fdisk -l. it needs to be in English. if you have another locale enabled, you need to run the firmware utils like this:

sudo env LC_ALL=C bash firmware-util.sh

Also, it would be good to set export LC_ALL=C at the beginning of the script

[MrChromebox]

@mildred just at the top of firmware-util.sh?

[mildred]

At the top, before anything else, so the environment variable is inherited

[MrChromebox]

@mildred added, let me know if that fixes the issue for you