Ted, Just recompiled 2.6.26 with the newest snapshot (15-July 2008/2310GMT). uninit_bg had been enabled. To test kernel I did: tune2fs -O ^uninit_bg /dev/sda6 to remove uninit_bg feature. Was prompted to run e2fsck on system. Rebooted and e2fsck saw errors and did a forced fsck without having to reboot. All is well thus far. Then I did the reverse: tune2fs -O uninit_bg /dev/sda6 to renable uninit_bg feature. Again, I was prompted to run e2fsck on system. Rebooted. This time I got a kernel panic that started with: EXT4-fs: ext4_check_descriptors: Checksum for group 2 failed (10368!=32990) EXT4-fs: group descriptors corrupted! Then the partitions available are listed followed by No filesystem could mount root, tried: ext4dev ext2 Kernel panic - not syncing: VFS: Unavle to mount root fs on unknown-block(8,6) I was under the impression that the newest patch would handle this or am I mistaken? Thanks, Gary -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html