Hi all, kernel 2.6.28.2 Slamd64 (Slackware 64bit port). I have been running my /home partition as ext4 for a few weeks, and it works very well, so today I converted / root partition over too. All works great, but I saw I was getting a funny error/no error reported in syslog: Jan 27 12:54:57 sauron kernel: EXT3-fs: sda2: couldn't mount because of unsupported optional features (40). Jan 27 12:54:57 sauron kernel: VFS: Mounted root (ext4 filesystem) readonly. i.e. root / -> /dev/sda2 couldn't mount, but it does mount, and system boots normally and functions fine. Reading up I found that passing rootfstype=ext4 to kernel fixes up this warning/error, but it appears only to apply to initramfs, of which I do not use. Searching boot scripts, I can find no mention of ext3 mounts. Any ideas what makes the kernel try to mount the / as ext3? Is it a kernel build option I missed? Thanks, Nick -- Free Software Foundation Associate Member 5508 http://linicks.net/ -- 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