Freebsd filesystem ( hard reboot )
rramsdell at livedatagroup.com
Thu Dec 6 09:50:58 PST 2007
Robert Huff wrote:
> Randy Ramsdell writes:
>> > What is the value of background_fsck in /etc/rc.conf ?
>> This isn't set. Was is supposed to be? So far, I have only
>> installed applications we need. And everything seem fine except
>> the reboot issue.
> I'm going to jump in here.
> Based on what you've said, it sounds like:
> the system was running
> there was power outage, the system did not have a UPS
> when the system rebooted, fsck complained but nothing was done
> about the errors
Let me clarify. All our servers are on UPSes, however the power outage
outlasted the UPSes. That is why I stated prolonged power outage.
Fsck did complain, but everything was fixed as I sat there and dealt
with it. We do not want to deal with it in an offsite location and that
is why this thread.
> IF THAT'S TRUE ...
> ... then the "seems" in your description is applicable,
> and should be a red flag.
> Get someone to the system, reboot it into single user mode, and
> run (and re-run) fsck until it runs without error. (Answer 'y' to
> all prompts.) This should be done whenever the file system is not
> shutdown cleanly.
The filesystem is fine. Our set up just does not recover gracefully on
> (And consider a UPS, even it it only keeps the system alive for
> the few minutes necessary for a clean shutdown.)
> Is a dirty file system causing the reboots?
No. a power prolonged power failure caused the last shutdown.
> Possibly; wiser
> heads than mine would have to lay out scearios. But it may also be
> responsible for other damage, more subtle but equally unpleasant. A
> fix is available. Use it.
> I understand this will not be easy, and I sympathize. Balance
> that pain against the small but non-trivial chance to catastrophic
> data loss, and choose wisely.
> Robert Huff
Thanks for the reply.
I think I will just set the rc.conf variable to answer "Y" to fsck
questions unless there is a better way.
A side note, this system has been hard shutdown two times and each time
required intervention. We also use several Linux system ( reiserfs and
ext3 ) and raely do I have to interact with the systems on reboot. There
is a differnce and I am in the fisrt stages trying to understand this.
PS. I am confused about why so many people are replying to the list and
my personal e-mail. This one was sent to me only. Others were sent to me
and the list. Actually, every other reply. Is this normal for the list
as I am new as of today?
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