Date: Sat, 14 Jul 2007 00:44:43 +0200 From: Volker <volker@vwsoft.com> To: Dan Nelson <dnelson@allantgroup.com> Cc: current@freebsd.org Subject: Re: zfs refuses to load pool on boot, zpool denies import Message-ID: <4698005B.3010100@vwsoft.com> In-Reply-To: <20070713221854.GC44766@dan.emsphone.com> References: <4697F753.5060304@vwsoft.com> <20070713221854.GC44766@dan.emsphone.com>
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On 07/14/07 00:18, Dan Nelson wrote: > In the last episode (Jul 14), Volker said: >> I'm constantly getting this error on bootup: >> >> ZFS: WARNING: pool 'mypool' could not be loaded as it was last >> accessed by another system (host: hostid: 0x0). See: >> http://www.sun.com/msg/ZFS-8000-EY >> >> As I've put /usr into zfs, I need to reboot into single user and >> issue a `zpool import -f mypool' (w/o -forcing, zpool denies to >> import the pool). It's strange as this pool has been created on that >> machine (probably while having booted from a different disk - I don't >> actually remember). >> >> I already imported, exported and re-imported but it didn't help. >> >> Any ideas? >> >> %kenv smbios.system.uuid >> ccf8597d-74fe-d511-a413-782ede476378 > > That may be what's causing your problem. If you boot into single-user, > make sure to run "/etc/rc.d/hostid start", which sets kern.hostuuid > from /etc/hostid or smbios.system.uuid if /etc/hostid doesn't exist. > Dan, damned... that's it. Thanks a lot. I was wondering about that because I've already seen a system uuid in kenv (only checked smbios.system.uuid) while in single user mode so I did not see the need to manually fire `/etc/rc.d/hostid start'. This may be taken into the documentation - I guess more will step into this. Or what about checking the hostid before doing any `zpool create | import' and refuse operation (with a useful hint to the operator) if hostid is 0x0? Volker
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