Upgrading our OE stack from BSP 2.5 to 2.8 (fresh build) and noticed that our SD cards which are formatted in ext4 are no longer mounted. Reformatting in ext3 works fine, but is a pain (have to transfer existing data).
It would appear that the kernel doesn’t support ext4 by default. I’ve built the image from the angstrom-lxde-image with a few additions and tweaks (none that relate to filesystems).
root@pvp:/media# cat /proc/filesystems nodev sysfs nodev rootfs nodev bdev nodev proc nodev cgroup nodev tmpfs nodev devtmpfs nodev debugfs nodev sockfs nodev usbfs nodev pipefs nodev anon_inodefs nodev rpc_pipefs nodev devpts ext3 ext2 nodev ramfs vfat nodev nfs nodev nfs4 nodev cifs nodev autofs nodev fuse fuseblk nodev fusectl nodev oprofilefs