Dual boot Mac OS 10.7 + F17, MBP4,1.
Failure after partitioning/lvm/filesystem creation, and before copying live image beings.
"ext4 filesystem check failure on /dev/mapper/vg_f17s-lv_root:
File system errors left uncorrected.
<remainder snipped> "
This is a 1 fail for 1 attempt, with this configuration. I've posted logs and steps in
this bug, and will try and reproduce it again myself after I get some sleep: