Tyler MacDonald <[EMAIL PROTECTED]> wrote:
> I've completed recovery now and have ended up with maybe a few gigs of files
> (out of hundreds of DVD's) that can't be covered. I think that's a pretty
> good recovery rate... and the files that were lost aren't exactly rare, so I
> should be able to find them again.
Oh, and if anybody's interested, here's a simple shell script I wrote for
my first pass recovery. Here's what I did:
- First, run this script -- if it succeeds, great, if not, stick the disc
on a "maybe" pile
- Clean the discs on the "maybe" pile, and try them on dvd reader #2... if
they dont work, try them on dvd reader #3, if they still dont work, put
them on the "maybe not" pile
- Run dvdisaster (used to be dd_rescue until I got that amazing
reccomendation) on the "maybe not" pile to create flawed iso images
- Import files from flawed images to HD, run them against their sha1 file,
delete any that fail
Well over a 99% recovery rate, probably closer to 99.9%... I'm glad my
DVD's held up :-)
Anyways, here's the script I used for the first pass..
Cheers,
Tyler
#!/bin/bash
set -x
set -e
CDROM=/cdrom
if test -z "$TMPDIR"
then
TMPDIR=/tmp
fi
real_cdrom=`realpath "$CDROM"`
if test -z "$1"
then
echo "Usage: $0 [dir]"
exit 1
fi
dest="$1"
if grep -q "$real_cdrom" /proc/mounts
then
umount "$real_cdrom"
fi
mount "$real_cdrom"
phys=`fgrep "$real_cdrom" /proc/mounts | awk '{print $1}'`
infof=`mktemp -p "$TMPDIR" cpcdiXXXX`
/lib/udev/vol_id "$phys" | sed -e 's,=,=",' -e 's,$,",' > "$infof"
. "$infof"
rm -f "$infof"
ddir="$ID_FS_LABEL_SAFE"
fdest="$dest/$ddir"
if test -e "$fdest"
then
echo "$fdest already exists."
exit 1
fi
tdest=`mktemp -p "$TMPDIR" cpcdXXXX`
rm -f "$tdest"
mkdir "$tdest"
tfdest="$tdest/$ddir"
if cp -av "$real_cdrom/." "$tfdest"
then
chmod -R u+w "$tdest"
if mv "$tfdest" "$fdest"
then
echo "$ddir copied to $tfdest"
exitt="0"
else
echo "move from $tfdest to $fdest failed"
exitt="1"
fi
else
echo "$ddir FAILED copy to $tfdest"
exitt="1"
fi
rm -rf "$tdest"
umount "$phys"
eject "$phys"
exit "$exitt"
