libtrash in fedora Core 5
Lamont R. Peterson
lamont at gurulabs.com
Tue Jan 24 20:45:37 UTC 2006
On Tuesday 24 January 2006 11:55am, Paul A Houle wrote:
> Actually, it would be quite nice to be able to manipulate the
> desktop trash via the CLI... Good for writing scripts.
Another reason why I suggested that the GUI's and any new CLI program should
share the same mechanism. Of course, one could do this today without a CLI
trashcan, but having it unified would make things much easier.
> As for alternative filesystems, ext3 and ext2 are the only
> filesystems I'd run on a machine where I cared about file integrity.
> Reiser, XFS and JFS have file integrity issues AS DESIGNED -- integrity
> issues that have caused problems in production systems that I run.
I could say the same about ext2 & ext3, depending on *when* I was talking
about them. All of these filesystems (including ext2/3) have been marred by
horror stories of lost data in the past. But that's where such stories
(generally) belong, since the bugs that caused them are long past. Heck, I
have a couple of good friends that vehemently refuse to use ext3 for that
reason. I know others that say the same thing for each of reiserfs, JFS &
The problem is, nobody tolerates errors in their use of a filesystem. Since
errors here usually mean data loss, we demand (near) perfection of that code.
Unfortunately, human being being what we are, new filesystems' code does not
get well tested until it's "gold". Then the horror stories pile up: "They
said this filesystem was stable, but it's *not*! I know; it ate my data.
What a horrible design."
So, please, if you are one who lost data to other filesystems in the past,
remember, bugs get fixed. don't blame the design. In a lot of ways ext3 has
the more archaic architecture of the 4 (and in other ways it's farther ahead,
and *please*, don't start a flame war/discussion of that here).
Anyway ... I'm not sure that Jeff was right when he talked about this being
because of a deficiency in ext3. Compared to ext2, perhaps. But, in
general, it is harder to recover deleted files from journaled filesystems
that it is from block ones. That said, Jeff has a point
> Undelete is possible on ext2, but ext3 shreds directory entries for
> deleted files as a mechanism that (get this) protects fs integrity in a
> crash. You're trading undelete and a bit of performance for no fsck
> after a crash: it can take forever to fsck a 300G volume, so most
> people choose no fsck.
I didn't know that's what ext3 was doing. Interesting ... I would guess that's
to prevent the recovery code from really borking things in case the journal
is corrupted. Is that accurate?
Probably not an on-topic question, eh? :)
Lamont R. Peterson <lamont at gurulabs.com>
Guru Labs, L.C. [ http://www.GuruLabs.com/ ]
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