Re: [opensuse] kernel problems

On Fri, Sep 17, 2010 at 4:26 PM, Greg Freemyer wrote:

On Fri, Sep 17, 2010 at 4:22 PM, dwgallien wrote:

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I am currently using kernel 2.6.34-12-desktop.  I tried upgrading to 2.6.34.4 and found that X would not work.  Downgrading resolved that issue.  So I was pleased to see a new kernel out 2.6.34.7 However on trying this update my system wouldn't boot.  It gives the following error message.

mount: unknown filesystem type 'ext4'

Has the new kernel not been built with support for ext4? Has anyone else updated to the new kernel and found this problem with ext4? Is there a simple solution or do I need to recompile the kernel?

Thanks in advance. Eddie

I don't remember if ext4 is in the kernel or not (I'm still using ext3).  Whatever, a simple solution is to add it to the initrd via Yast sysconfig editor, the initrd will be rebuilt upon exit.  Can also be done from the command line by editing /etc/sysconfig/kernel and then running mkinitrd.

If it's not already in the just released kernel by default, it's a bug pure and simple.

I'll update my system now and try it out.

Greg

I did not test initrd which is used during boot, but I did test the new kernel itself and I see no problems with ext4. So there should not be any reason to recompile. == My test after booting a machine with no ext4 partitions # create a loopback file to mount gaf@tiger3-64bit:~/temp> dd if=/dev/zero of=tmp_fs bs=1M count=5000 5000+0 records in 5000+0 records out ... # put a ext4 fs on it gaf@tiger3-64bit:~/temp> sudo /sbin/mkfs.ext4 tmp_fs mke2fs 1.41.11 (14-Mar-2010) tmp_fs is not a block special device. Proceed anyway? (y,n) y ... # mount it loopback gaf@tiger3-64bit:~/temp> sudo mount -t ext4 -o loop tmp_fs /mnt # verify it mounted gaf@tiger3-64bit:~/temp> mount ... /dev/loop0 on /mnt type ext4 (rw) # make sure the ext4 module is now loaded. (It was not prior to these steps) gaf@tiger3-64bit:~/temp> lsmod | grep ext4 ext4 401916 1 jbd2 100410 1 ext4 crc16 1715 1 ext4 # verify I'm running the just released kernel gaf@tiger3-64bit:~/temp> uname -a Linux tiger3-64bit 2.6.34.7-0.2-desktop #1 SMP PREEMPT 2010-09-14 14:21:06 +0200 x86_64 x86_64 x86_64 GNU/Linux # all looks good Greg -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org