In the fit-PC BIOS setup, I set
Drive C: Nand Flashbut neglected to set
Drive D: IDE. So when the installer got round to the partitioning stage it could only see the USB stick, not the hard disk. Hit reset button and start again...
I didn't create a separate ext3 /boot partition, just XFS root and /home partitions. Apparently installing GRUB on an XFS partition is not a good thing. Near the end of the install, the installer offers to install LILO for me. Now I dimly remembered going through LILO versus GRUB before and preferring GRUB, so I try to install GRUB anyway. The installer warns me that this is a bad idea. When I ignore that this makes a fatal error in the install which then hangs. Grit teeth, hit reset button and start again...
Third and fourth attempts
I created a separate ext3 /boot partition to stay sweet with GRUB. So I now have
#1 primary 100MB ext3 /bootNow the install completed successfully each time. But it all ended in tears when I tried to reboot the fit-PC. Each time, it immediately dropped to a debugger interface, saying
#1 primary 4GB XFS /
#5 logical 246GB XFS /home
Embedded BIOS Debugger Breakpoint Trapand refused to do anything else. Weep, hit the sack and try again in the morning...
I noticed that after each install attempt, I could no longer boot from the USB stick. It gave
GRUB Error 21. I could fix the stick by reconnecting it to my old Linux box and doing
install-mbr /dev/sdb. But why?
I finally guessed that the Ubuntu installer must be installing GRUB to the MBR of my USB stick, instead of the hard disk in my fit-PC where I needed it. Armed with that hunch, Google finally gave me some answers, like this, this and this.
I let the Ubuntu installer run to the very end, where it tells you to reboot. At that point, I opened a console and took a look around.
I found (fdisk) that my hard disk partitions were mounted on /target. So I did
# chroot /targetto install GRUB into the MBR of the hard disk. Then I went back to the installer's console and let it finish.
# grub-install /dev/sdb
On restart I removed the USB stick, hit DEL to enter the BIOS setup, reverted to
Drive C: IDEand saved to reboot.
On first attempt GRUB started (phew) but said
Error 21: Selected disk does not existSo I did. Then GRUB gives the menu list of image it can boot and allows you to edit and boot them. I edited the entry for the first image. It's first line was
Press any key to continue...
root (hd1,0). I edited that to
root (hd0,0)and the hit 'b' to boot. The system booted at last.
Once in, I took a look at /boot/grub/menu.list. All three had
I rebooted to confirm that GRUB would fail again with same error.
It did. I fixed as before. Once back in, I edited /boot/grub/menu.list to change all the hd1 to hd0 and rebooted again.
At last, the system boots successfully. Now I can get on with the more interesting stuff.