Follow-up Comment #1, bug #42409 (project grub):
Hi,
I agree with Alain that the error message should be improved.
I ran into this issue when using systemd-nspawn which by default restricts
access to the devices in the container, here is an example:
$ sudo systemd-nspawn -q --directory "/media/ao2/USB_rootfs" --bind /dev
grub-probe /
grub-probe: warning: disk does not exist, so falling back to partition device
/dev/sdf2.
grub-probe: warning: disk does not exist, so falling back to partition device
/dev/sdf2.
grub-probe: warning: disk does not exist, so falling back to partition device
/dev/sdf2.
grub-probe: error: disk `hostdisk//dev/sdf2' not found.
/
the message says that the disk does not exist but it does, and in my case the
error is that it cannot be opened:
open("/dev/sdf", O_RDONLY) = -1 EPERM (Operation not permitted)
So if grub would just tell "Operation not permitted" it would be easier for
the user to understand what is going on.
Should we send a patch?
Thanks,
Antonio
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