The upgrade from FC5 to FC6 appeared to go OK at first and I was able to log in and do a package update which had no problems. However after I installed xen I can no longer boot; the system just reboots. After some investigation I found that when I boot from the DVD in rescue mode and run grub from the command line I get this: # grub grub> root (hd0,0) Filesystem type unknown, partition type 0x7 The file /boot/device.map contains: (hd0) /dev/hdi (hd1) /dev/sda hd1 is my Windows disk. Parted shows me this: # parted /dev/hdi Model WDC WD1600JB-00FUA0 (ide) Sector size (logical/physical): 512B/512B Partition table: msdos Number Start End Size Type File system Flags 1 32.3KB 107MB 107MB Primary ext3 boot 2 107MB 160GB 160GB Primary lvm I noticed from reading the grub manual (http:\\www.gnu.org\software\grub\manual.htm#Features) that it does not list ext3 as one of the supported filesystem types. Is this my problem or is the manual not up-to-date? If this is the problem how do I change the boot partition from ext3 to ext2 and how did my FC5 system boot? The other thing that looks odd to me is that the partition table is msdos. Is this correct? Answers to these questions or any other suggestions will be appreciated. Thanks, Steve