If you can still reproduce this with the final Dapper alternate install CD, then please attach /var/log/syslog from the installer to this bug. You can extract it by going back to the installer's main menu and selecting "Save debug logs".
** Changed in: base-installer (Ubuntu) Sourcepackagename: base-installer => debian-installer ** Changed in: debian-installer (Ubuntu) Status: Unconfirmed => Needs Info -- Dapper Install: LVM on RAID 1 fails to install bootloader https://launchpad.net/bugs/45523 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs