Installation problems with Ubuntu Server (amd64)

[Emil Isberg]

$ lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10

Server: SuperMicro Atom D525
Linux detects: Supermicro X7SPA-HF/X7SPA-HF

Insallation media: USB

1st problem: Media not detected
Tried cdrom-detect/try-usb=true but it did not help.

Changed to term, checked /dev/disk/by-label to find out the /dev/sdX
Cmd: mount -t vfat /dev/sdX /cdrom
Problem solved.

2nd problem: Stop when choosing packageinstallation
Error message: 50mirror.ubuntu backed out

Could not find out why 50mirror.ubuntu stoppped, but since I had media on "/cdrom" I didn't think I would need it either.
Cmd: rm /usr/lib/apt-setup/generators/50mirror.ubuntu
Problem solved.

3d problem: Stop when running grub-setup/install.
It looked like the in-target system was confused where the package should be located.
Error message: grub-pc not found but is referenced by other packages...

Not certain exactly what of the following that fixed it:
chrooted into /target
unmount /cdrom -> not mounted msg (mount said it was mounted)
mkdir /cdrom
mount -t vfat /dev/sdX /cdrom
edit /etc/apt/sources.list -> uncommented cdrom rows, commented network rows

Problem solved.

1st problem could be "too new hardware", 2nd could be a result of the 1st problem. 3d problem looks like confused system though.

Yes, I should really have posted these as separate bugposts. And perhaps I also should have posted it as a blog post somewhere. But the bugs might depend on each other, and I couldn't find another bug report with similar problems regarding 11.10. So do with it as you please.