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Article #1161

Re: "lost+found" files?

#1161
From: Felix Karpfen
Date: Tue, 24 Jun 2008 20:50
67 lines
3589 bytes
On 2008-06-23, Will Kemp <will@xxxx.swaggie.net> wrote:
> Felix Karpfen wrote:
>> On 2008-06-21, "Robert Swan" swan.r.l@gmail.com <"Robert Swan"> wrote:
>> 
>>> Can be a challenge finding where these things are documented, but
>>> "file" is often helpful when trying to work out what a file is.
>>>
>>> And it's not good to be finding things in lost+found.  That indicates
>>> some level of file system corruption
>> 
>> Alas - that was indeed the case.

>> I would have been history, if I had not had a backup
>> fully-operational (Linux) system on my box from which to repair the
>> corrupted disk partition.
>
> Was it an ext3 file system?

I use the XFS file system.

And discovered "/sbin/xfs_repair" which appears to have repaired most
of the damage.

A few socket files ended up in "lost+found"; and there was about 2
minutes of cleanup activity that flashed across the screen [and was not
saved for inspection :-(]. The XFS-log was also corrupted; I had to
overwrite it with zeros (as instructed by an xfs_repair message) before
xfs_repair did its things.

The text files in "lost+found" are a total mystery. They have
accumulated over a period of 2 years and appear to be either emails or
downloaded web-pages.  I never knew that any of the entries had been
lost :-(.

One other mystery remains. My HD has 6 partitions and some unformatted
space.  My current OS is on one partition and my backup OS on a second
partition. The other partitions are a swap partition and two small
XFS partitions that I had created in the distant past and filled with
(backup?) contents that I can no longer recall (I now use a separate
HD for my backups!). "cfdisk" displays the starts and ends of these
partitions and "xfs_repair says that the file-systems are perfectly
healthy.  But I can no longer "mount" them and inspect their content.
The "mount" command claims that the mount points do no exist.  Since I
cannot even remember any more what data is in these partitions, it is a
non-issue that I can no longer mount them.

But I worry about such mysteries and therefore thought them worth a
mention.

>
> If you can't open them with a text editor they're probably not going to 
> be any use anyway. But it might not do any harm to hang onto them for a 
> while, as sometimes you don't realise something missing for ages.

I propose to move them to "/opt", leave  "/lost+found" empty and watch
for anything else that ends up there in future.

Thank you for the advice.

Felix
>
>


-- 
Felix Karpfen
Public Key 72FDF9DF (DH/DSA)
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From: Felix Karpfen <felixk@webone.com.au>
Subject: Re: "lost+found" files?
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