grub-mkrescue does not report errors properly

[Al Grimstad]

Hi. I'm using grub2, in Ubuntu 9.10:

# grub-mkrescue --version
grub-mkrescue (GNU GRUB 1.97~beta4)

This command works for me and produces a floppy image from which I am
able to boot my system. Great job!

The problem I've discovered is that error reporting isn't adequate. As
an example, this command runs to completion without complaint:

# grub-mkrescue --modules=crap --overlay=/boot/grub
--image-type=floppy /tmp/grub_two-crap.dsk
Overlaying /boot/grub
1440+0 records in
1440+0 records out
1474560 bytes (1.5 MB) copied, 0.0144632 s, 102 MB/s

Clearly, there should be some complaint about a non-existent module.

I ran into this problem trying via trial and error to discover the
correct format for the --modules argument. I tried this without success

grub-mkrescue --modules=raid,mdraid,lvm ...

So, I probably needed to add the file extension, or the full path or
such.

-- al