Arch Linux

Duxon

Member

Registered: 2010-12-01

Posts: 41

[SOLVED by workaround] System fails to boot since Linux 4.4

My system updated to the latest Linux release today. Since then I'm unable to boot my system, which consists of a setup of LVM on top of LUKS.

Here's the journalctl -xb: pastebin link
For me it's hard to see what's the problem here. /home/ doesn't get mounted and then things seem to break.

Feb 03 21:57:11 hubert systemd[1]: home.mount: Mount process exited, code=exited status=32
Feb 03 21:57:11 hubert systemd[1]: Failed to mount /home.
...
Feb 03 21:57:11 hubert systemd[1]: local-fs.target: Job local-fs.target/start failed with result 'dependency'.
Feb 03 21:57:11 hubert systemd[1]: local-fs.target: Triggering OnFailure= dependencies.
Feb 03 21:57:11 hubert systemd[1]: home.mount: Unit entered failed state.
Feb 03 21:57:11 hubert kernel: EXT4-fs (dm-3): can't mount with data=, fs mounted w/o journal
Feb 03 21:57:11 hubert systemd[1]: Stopped target Graphical Interface.

Interestingly, booting linux-lts works just fine.

I've checked my partitions for filesystem errors and rebuilt /boot/vmlinuz-linux with no success.

Any idea and help is appreciated, thanks!

Last edited by Duxon (2016-02-11 10:38:53)

Beauvoir

Member

Registered: 2014-08-05

Posts: 7

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

Hello Duxon

Do you have no default mount options in fstab (data, commit)? My ext4 system only boot with default mount options after kernel update.

Duxon

Member

Registered: 2010-12-01

Posts: 41

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

Excellent, Beauvoir!

I've used the option data=ordered in my /etc/fstab, which was actually mentioned in my error abstract, but I didn't understand it. Now I do.

Thanks, solved!

georgnix

Member

Registered: 2014-03-06

Posts: 9

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

I ran into the same issue here today. I first suspected lvm to cause the problem and downgraded to a previous version without success.
After downgrading to linux 4.3 the issue was resolved.
Is this a kernel bug then? I couldn't find anything in kernel bugzilla.

Duxon

Member

Registered: 2010-12-01

Posts: 41

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

Why not simply editing your /etc/fstab?

georgnix

Member

Registered: 2014-03-06

Posts: 9

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

I don't understand your question. I did the downgrades before I read  your post.
If this is a bug it should get fixed.
Or is data=ordered not a valid option anymore?

Last edited by georgnix (2016-02-05 08:02:55)

Duxon

Member

Registered: 2010-12-01

Posts: 41

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

Sorry, the question was not well put. I didn't really depend on data=ordered and therefore just removed it without a lot of further thought and without the need of downgrading.

I can't find any documentation on whether or not this option is now deprecated either, so my guess is it's a kernel bug.

georgnix

Member

Registered: 2014-03-06

Posts: 9

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

I finally got around creating a bug report: FS#48135

@Duxon: maybe you could remove [SOLVED] from the title. It's really not.. ;-)

georgnix

Member

Registered: 2014-03-06

Posts: 9

Re: [SOLVED by workaround] System fails to boot since Linux 4.4

To document this here: The problem was that the filesystem did indeed not have a journal in contrast to my assumption.
That's the meaning of the  follwing kernel error msg:
EXT4-fs (dm-3): can't mount with data=, fs mounted w/o journal

Sent a patch to clarify it.

Last edited by georgnix (2016-02-12 13:42:29)