Comment 9 for bug 33649

The same has happened to me installing Ubuntu Dapper beta, in my case grub uses the menu and boots from another installation on a SATA disk when I installed to the second IDE disk. This does not seem to be exclusively a Ubuntu bug, I had also this or similar problem on another pc when installing Kubuntu 5.10, and also another Debian based distro where grub wouldn't boot at all.

current setup
2 IDE disks
1 SATA disk

2nd IDE disk partition
hdb1 swap
hdb2 ext3 (root)
hdb5 ext2 (home)
hdb6 data

SATA disk partition
sda1 swap
sda2 ext3 (root)
sda5 data
etc..

grub boots and uses the menu from /dev/sda2, even when I explicitly give 'root=/dev/hdb2' at the command line. The 'solution' for me has been to boot from the Dapper install CD, and choose 'boot from first harddisk', then it boots correctly... any clues why?