Re: GRUB on diskette

[Frédéric L . W . Meunier]

On Wed, 21 Sep 2011, Lee Valentine wrote:

> 2. The -h option for grub-install said that there was a --root-directory
> option, but not an option --boot-directory. I repeated the above script
> using --root-directory instead of --boot-directory, and was given
>
>   cp: can not create regular file '/mnt/boot/boot/grub/crypto.lst': no
>   space left on device
>
> Grub-install wrote extensively to the 3.5" diskette /dev/fd0
> nonetheless.
>
> Is this error message significant?

Sure. It's because GRUB releases can't fit on a floppy drive anymore. I 
removed many modules from /usr/local/lib64/grub/i386-pc (back up the 
directory), like all gcry_*, and it didn't complain about space...

> 5. Is it possible to install GRUB 2 on a diskette and have that diskette
> actually boot the machine on which the diskette was created?

...but returned

grub-install --boot-directory=/mnt/floppy/boot --allow-floppy /dev/fd0
/usr/local/sbin/grub-probe: error: no such disk.
Auto-detection of a filesystem of /dev/fd0 failed.
Try with --recheck.
If the problem persists please report this together with the output of "/usr/local/sbin/grub-probe 
--device-map="/mnt/floppy/boot/grub/device.map" --target=fs -v /mnt/floppy/boot/grub" to 
<address@hidden>

/usr/local/sbin/grub-probe: info: Scanning for dmraid_nv RAID devices on disk 
fd0.
/usr/local/sbin/grub-probe: info: scanning fd0 for LVM.
/usr/local/sbin/grub-probe: info: Scanning for mdraid09 RAID devices on disk 
fd0.
/usr/local/sbin/grub-probe: info: Scanning for mdraid1x RAID devices on disk 
fd0.
/usr/local/sbin/grub-probe: info: Scanning for mdraid09 RAID devices on disk 
fd0.
/usr/local/sbin/grub-probe: info: Scanning for mdraid1x RAID devices on disk 
fd0.
/usr/local/sbin/grub-probe: info: scanning fd0 for LVM.
/usr/local/sbin/grub-probe: info: changing current directory to /dev.
/usr/local/sbin/grub-probe: info: changing current directory to v4l.
/usr/local/sbin/grub-probe: info: changing current directory to by-path.
/usr/local/sbin/grub-probe: info: changing current directory to vboxusb.
/usr/local/sbin/grub-probe: info: changing current directory to 003.
/usr/local/sbin/grub-probe: info: changing current directory to 002.
/usr/local/sbin/grub-probe: info: changing current directory to 001.
/usr/local/sbin/grub-probe: info: changing current directory to dri.
/usr/local/sbin/grub-probe: info: changing current directory to disk.
/usr/local/sbin/grub-probe: info: changing current directory to by-uuid.
/usr/local/sbin/grub-probe: info: changing current directory to by-path.
/usr/local/sbin/grub-probe: info: changing current directory to by-id.
/usr/local/sbin/grub-probe: info: opening fd0.
/usr/local/sbin/grub-probe: error: no such disk.