On Dienstag, 11. September 2007, Jorge Peixoto de Morais Neto wrote:
> > Do you think that there is any plausible chance that using the partition
> >
> > > might cause further damage?
> >
> > if there isn't a hardware problem - very probably not. I have had very
> > good
> > experiences with reiserfsck (for 3.6) and fsck.reiser4 (with reiser4). If
> > the
> > fs got fixed, it is fixed.
> > If the disk is damaged, than reinstalling from scratch won't help you
> > anyway.
>
> I realized that the damaged files were filled with nulls, so  I made a
> script that detected  null-filled files across my filesystem.  There are
> some 250 files like this. Here are some:
>
> /media/hda2/bin/du: 59084
> /media/hda2/bin/rm: 34100
> /media/hda2/bin/tr: 27492
> /media/hda2/bin/wc: 23108
> /media/hda2/bin/dir: 79420
> /media/hda2/bin/cut: 27048
> /media/hda2/bin/env: 13436
> /media/hda2/bin/seq: 17740
> /media/hda2/bin/tty: 12800
> /media/hda2/bin/yes: 12876
> /media/hda2/bin/expr: 23336
> /media/hda2/bin/head: 24516
> /media/hda2/bin/sort: 65168
> /media/hda2/bin/stty: 37380
> /media/hda2/bin/sync: 12584
> /media/hda2/bin/true: 12200
> /media/hda2/bin/vdir: 79420
> /media/hda2/bin/dirname: 13836
> /media/hda2/bin/rmdir: 14684
> /media/hda2/bin/sleep: 14772
> /media/hda2/bin/touch: 34328
> /media/hda2/bin/uname: 15316
> /media/hda2/bin/chroot: 13500
> /media/hda2/bin/mkfifo: 14644
> /media/hda2/bin/readlink: 18988
> /media/hda2/bin/basename: 13772
> /media/hda2/etc/enlightenment/sysactions.conf: 2964
> /media/hda2/etc/laptop-mode/laptop-mode.conf: 15916
> /media/hda2/etc/laptop-mode/lm-profiler.conf: 1561
> /media/hda2/etc/portage/package.keywords/wanted~: 796
> /media/hda2/var/lib/scrollkeeper/scrollkeeper_docs: 1812
> /media/hda2/usr/lib/aspell-0.60/nroff-filter.info: 232
> /media/hda2/usr/lib/aspell-0.60/iso-8859-1.cset: 13848
> /media/hda2/usr/lib/aspell-0.60/iso-8859-2.cset: 14133
> /media/hda2/usr/lib/aspell-0.60/cp1250.cmap: 31404
> /media/hda2/usr/lib/aspell-0.60/cp1252.cset: 14039
> /media/hda2/usr/lib/aspell-0.60/cp1253.cset: 13682
> /media/hda2/usr/lib/aspell-0.60/iso-8859-8.cmap: 27758
> /media/hda2/usr/lib/aspell-0.60/iso-8859-8.cset: 12557
> /media/hda2/usr/lib/aspell-0.60/cp1255.cmap: 35133
> /media/hda2/usr/lib/aspell-0.60/cp1256.cset: 13307
> /media/hda2/usr/lib/aspell-0.60/cp1257.cmap: 31235
> /media/hda2/usr/lib/aspell-0.60/cp1258.cset: 13920
> /media/hda2/usr/lib/aspell-0.60/context-filter.so: 26976
> /media/hda2/usr/lib/aspell-0.60/iso-8859-10.cmap: 31046
> /media/hda2/usr/lib/aspell-0.60/iso-8859-10.cset: 14259
> /media/hda2/usr/lib/aspell-0.60/texinfo-filter.info: 914

start with emerging coreutils and go on from that point.

>
>
> Most of these things are not essential; the big exception is the things in
> /bin. So it does seem that the system is fixable.
> Something else that I wanted to ask: this backup that I made after the
> screwup but before rebuild-tree, do you think it is reliable?

not really, no. Damaged files are damaged files. Some stuff might be usable 
but that has to be checked on a case to case basis.
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