It detects it as ext3 and then fails with unsupported options. Passing rootfstype=ext4 hangs without error, but after some disk access and before init is run. I can't really tell you more as my USB devices init with messages after kernel tries to start init these days and punt any related messages off the screen. Booting with quiet has NO output, just hangs. The ext4 partition was created from fresh and data was copied by rsync -avx. Any pointers to fixing this would be nice as I thought ext4 was now considered "good enough". Can attach kernel config if required.
I think that the problem is the bootloader. Do you have GRUB? GRUB does not support ext4 yet: http://ext4.wiki.kernel.org/index.php/Ext4_Howto#Booting_from_an_ext4_filesystem
I doubt it's the boot loader as /boot is on a small ext2 partition AND the kernel is already loaded. Interesting, the same kernel can mount and use ext4 parts, just not as the rootfs.
I see. Have you compiled ext4 inside the kernel or just as a kernel module? In the later case: are you using an initrd? Regards, Maxi
Everything is compiled into the kernel, except for nVidia drivers.
Can you post more information about the partition layout? Can you somehow set the system up to produce more kernel output?
(In reply to comment #5) > Can you post more information about the partition layout? kernel command line root=/dev/sda3 vtsplash.theme=gentoo console=tty1 quiet fdisk -l Device Boot Start End Blocks Id System /dev/sda1 * 1 6080 48837568+ a9 NetBSD /dev/sda2 6081 12160 48837600 a9 NetBSD /dev/sda3 12161 18240 48837600 83 Linux /dev/sda4 18241 60801 341871232+ 5 Extended /dev/sda5 18241 18257 136521 83 Linux /dev/sda6 18258 19231 7823623+ 82 Linux swap / Solaris /dev/sda7 19232 25311 48837568+ 83 Linux cat /etc/fstab <fs> <mountpoint> <type> <opts> <dump/pass> /dev/sda3 / xfs noatime,nobarrier 0 1 /dev/sda5 /boot ext3 noauto,noatime 1 2 /dev/sda7 /mnt/x ext4 noatime,noauto 0 0 /dev/sda6 none swap sw 0 0 On the ext4 partition, the / fstab entry is swapped with the /mnt/x entry (before you ask). And, yes, to active the ext4 partition I set root=/dev/sda7 in grub. Otherwise they are identical. > Can you somehow set > the system up to produce more kernel output? How? As I said earlier, there is no warning or error it just hangs. With quiet disabled, the last messages shown on screen are the USB init messages which are fine. The screen is limited to 80x25 here.
I feel bad :/ I pulled an old PS2 keyboard out so my USB foo didn't overwrite the screen and voila - there was the error. Because I used udev, my /dev didn't have any nodes. I am an idiot. Sorry for noise.
