[systemd-bugs] boot hangs: systemd[1] - nfs branch is not exportable

[Lennart Poettering]

On Sat, 17.11.12 13:47, Vladimir Elisseev (vovan at vovan.nl) wrote:

> Hello,
> 
> Updating systemd-188 to >=193 leads to boot error: immediately after
> issuing switch_root systemd hangs with the message "systemd[1] - nfs
> branch is not exportable", though system can be booted properly if using
> the SysV init. I've been using AUFS with NFS root (NFS ro with NFS rw
> branches) for a long while and lately successfully with systemd until
> got this error. I'd appreciate if somebody can provide an explanation of
> the reason why this happens.

Umm, aufs is out of the kernel due to issues. I have no idea really what
this might be caused by. 

Maybe this is related to MS_SHARED change? I.e. the default mount
propagation flag we now set to MS_SHARED rather than MS_PRIVATE, so that
containers are happy. We encountered numerous issues with that change,
maybe aufs is another piece in the puzzle that trips over it?

Lennart

-- 
Lennart Poettering - Red Hat, Inc.