I have rebuilt the initrd image --with=reiserfs (no .ko) but I still get a kernel panic: VFS: Mounted root (ext2 filesystem). Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3,2) I named the initrd as initrd.custom.img and it is in the /boot directory and added initrd /initdd.custom.img to the grub line but still a bombout. In fact during a 2.6.5 bootup, it is clearly loading the reiserfs module from dmesg: VFS: Mounted root (ext2 filesystem). found reiserfs format "3.6" with standard journal reiserfs: using ordered data mode etc etc It is a bit annoying when earlier kernels worked OK only for RH/Fedora to change within a release - I could understand it better if this was when going to FC3 for example. I have now changed the boot partition to ext3 (ie copied it, mkfs.ext3 /dev/hda1 copied it back and re-installed grub - the grub.conf is the same) but I still get the same kernel panic although I can boot it back in the 2.6.5 kernel OK. Further clues? TIA John John Logsdon "Try to make things as simple Quantex Research Ltd, Manchester UK as possible but not simpler" j.logsdon@xxxxxxxxxxxxxxxxxxxx a.einstein@xxxxxxxxxxxxxx +44(0)161 445 4951/G:+44(0)7717758675 www.quantex-research.com