Re: fsck to fix HD problem

2007-07-25 Thread RW
On Wed, 25 Jul 2007 07:50:38 +0200
Zbigniew Szalbot <[EMAIL PROTECTED]> wrote:

> 
> Hello,
> 
> >> so I decided to use fsck to check my HD. I ran it
> >> in the foreground mode with the -y flag. It gives me the below
> >> information. My question is - should I worry (it is more a home
> >> machine than a real server) and if yes, how can I fix the problem?
> > . . .
> > 
> > To do anything more than merely report problems
> > you should drop into single-user mode, unmount
> > everything except root (hopefully.  If it gets angry,
> > reboot into single-user mode.) and run fsck (as is
> > or with the -y flag if you feel daring.) on the filesystems
> > in question.
> 
> Is the single-user mode necessary. As it is a family machine I know
> when I am the only one using it.
> 


The fsck output was the normal stuff you see if you pull-out the plug
(if you're lucky). Did you check if the background fsck was still
running? 

In practice you rarely need to do do a manual check - most reboots can
be handled by a background check, and most cases where it can't are
spotted during the initial foreground check and done in the foreground.
Just watch the console for unexpected softupdate inconsistencies.

If you run fsck with -y, you might as well set "fsck_y_enable=yes" in
rc.conf and have it done automatically if the initial preen fails.

  
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Re: fsck to fix HD problem

2007-07-25 Thread [EMAIL PROTECTED]

On 25/07/07, Zbigniew Szalbot <[EMAIL PROTECTED]> wrote:


One little question - when I drop into single-user mode, do I need to mount
/usr and /var?
Is mount -a OK?



Generally, no.

Or mount read-only, if you must.

When doing ugly repairs, fsck would prefer to not
have the filesystem changing under it.

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Re: fsck to fix HD problem

2007-07-24 Thread [EMAIL PROTECTED]

On 25/07/07, Zbigniew Szalbot <[EMAIL PROTECTED]> wrote:


Hello,

>> so I decided to use fsck to check my HD. I ran it
>> in the foreground mode with the -y flag. It gives me the below
>> information. My question is - should I worry (it is more a home machine
>> than a real server) and if yes, how can I fix the problem?
> . . .
>
> To do anything more than merely report problems
> you should drop into single-user mode, unmount
> everything except root (hopefully.  If it gets angry,
> reboot into single-user mode.) and run fsck (as is
> or with the -y flag if you feel daring.) on the filesystems
> in question.

Is the single-user mode necessary. As it is a family machine I know when I
am the only one using it.



Well, fsck-ing /var on a fully multiuser system is
hairy, at best, since /var is almost always being
written to by something or other.  Single user
mode is the simplest way of dealing with this, since
none of the logging, mail, or one of any of a 10^4
daemons will be trying to write to it, while you're
trying to fix it.

With mysql, I would assume* many of the same
problems with /usr (or /usr/local, if that is its own
filesystem).


*given that I know meow-all about mysql: where
it may wish to write, or what horrible perversions
it commits while running.

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Re: fsck to fix HD problem

2007-07-24 Thread Zbigniew Szalbot

Hello,

>> so I decided to use fsck to check my HD. I ran it
>> in the foreground mode with the -y flag. It gives me the below
>> information. My question is - should I worry (it is more a home machine
>> than a real server) and if yes, how can I fix the problem?
> . . .
> 
> To do anything more than merely report problems
> you should drop into single-user mode, unmount
> everything except root (hopefully.  If it gets angry,
> reboot into single-user mode.) and run fsck (as is
> or with the -y flag if you feel daring.) on the filesystems
> in question.

Is the single-user mode necessary. As it is a family machine I know when I
am the only one using it.

> 
> As an aside, you might want to figure out why your
> machine fell over, so as to possibly avoid this in
> the future (such as it is).

Lack of UPS and sudden power outage.

Thank you!
-- 
Zbigniew Szalbot

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Re: fsck to fix HD problem

2007-07-24 Thread [EMAIL PROTECTED]

On 25/07/07, Zbigniew Szalbot <[EMAIL PROTECTED]> wrote:


Hello,

I got a Charlie report:
+WARNING: / was not properly dismounted
+WARNING: /var was not properly dismounted
+/var: mount pending error: blocks 8200 files 43
+/usr: mount pending error: blocks 4552 files 6

so I decided to use fsck to check my HD. I ran it
in the foreground mode with the -y flag. It gives me the below
information. My question is - should I worry (it is more a home machine
than a real server) and if yes, how can I fix the problem?

. . .

To do anything more than merely report problems
you should drop into single-user mode, unmount
everything except root (hopefully.  If it gets angry,
reboot into single-user mode.) and run fsck (as is
or with the -y flag if you feel daring.) on the filesystems
in question.

As an aside, you might want to figure out why your
machine fell over, so as to possibly avoid this in
the future (such as it is).

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