After a lot of testing and fun I have freed a box for production Xen installs. When I try to install Xen onto an LV things go quite wrong. If I create and mount an LV and install Xen into a file backing then all works fine. The process I am using goes like this... Create an LV: # lvcreate -L 2G vgxen -n myxen Install FC5: # xenguest-install.py --name=myxen \ --file=/dev/vgxen/myxen \ --ram=256 \ --location=http://install/5/i386/ I preform a minimal install and it finishes without errors, the only thing I customise is the name of the volume group (VolGroup00 => vg00) and the logical volumes (LogVol00 => lv00 etc), I''m not a fan of the StudlyCaps default :-) The I start the instance # xm create -c myxen Only to be confronted with this: Setting up Logical Volume Management: 2 logical volume(s) in volume group "vg00" now active [ OK ] Checking filesystems Checking all file systems. [/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a /dev/vg00/lv00 /dev/vg00/lv00: clean, 19347/418080 files, 126997/417792 blocks [/sbin/fsck.ext3 (1) -- /boot] fsck.ext3 -a /dev/xvda1 Error reading block 32 (Attempt to read block from filesystem resulted in short read). /boot: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY. (i.e., without -a or -p options) Trying to fsck the /boot filesystem gives the following errors: Error reading block 32 (Attempt to read block from filesystem resulted in short read). Ignore error<y>? Does anyone have any ideas as to what is wrong or what I am doing wrong? Take care, Gawain