Hello, and help! help! help! ^.^
I have no idea how long this behaviour exists, i am using GNU tar
on Linux since almost a year (star before, GNU tar on Mac OS X (i
think it was, Snow Leopard), and i don't know what the FreeBSD tar
before that was, anyway), and i never needed to restore a backup
in that time. But now i have.. and it doesn't work.
I.e., the backup script is old and always worked well.
So it collects a list of files in a textfile, and then either
$tarxcmd = "tar -c -f - | $COMPRESSOR > $ar";
or
$tarxcmd = "tar -r -f $ar >/dev/null";
and then
unless (open XARGS, "| xargs -0 $tarxcmd 2>>$MFFN") {
::err(1, "Failed to create pipe: $^E");
::do_exit(1);
}
foreach my $p (@$listref) { print XARGS $p, "\x00"; }
close XARGS;
so we go like
- ... scheduled 2199 files for backup
- Creating complete archive....
tar: Removing leading `/' from member names
tar: Removing leading `/' from hard link targets
tar: Removing leading `/' from member names
- Writing current timestamp to </home/steffen/traffic/.-backup.dat>
- mail(1)ing report and exit success
Ok. The list of files to be added is complete, but the last three
directories including a few dozen files are completely missing if
i unpack the archive!!
They are however part of the archive content, e.g.:
?130[steffen@wales x]$ tar -tf monthly-backup.tar | grep 'mail/2013.track'
?1[steffen@wales x]$ grep 'mail/2013.track' monthly-backup.tar
Binary file monthly-backup.tar matches
So i
?0[steffen@wales x]$ tar -tf monthly-backup.tar
...
home/steffen/sec.arena/configs.git/sys.localhost/fbsd-10/etc/spwd.db
home/steffen/sec.arena/configs.git/sys.localhost/fbsd-10/etc/hosts.equiv
home/steffen/sec.arena/configs.git/sys.localhost/fbsd-10/etc/rc.conf
?0[steffen@wales x]$
So the next file in the archive would "man.conf" in the very same
directory according to archive content:
$ dd ibs=1000000 skip=375 if=monthly-backup.tar|s-hex|v
..
00051c40 68 6f 6d 65 2f 73 74 65 66 66 65 6e 2f 73 65 63 home/steffen/sec
00051c50 2e 61 72 65 6e 61 2f 63 6f 6e 66 69 67 73 2e 67 .arena/configs.g
00051c60 69 74 2f 73 79 73 2e 6c 6f 63 61 6c 68 6f 73 74 it/sys.localhost
00051c70 2f 66 62 73 64 2d 31 30 2f 65 74 63 2f 72 63 2e /fbsd-10/etc/rc.
00051c80 63 6f 6e 66 00 00 00 00 00 00 00 00 00 00 00 00 conf............
00051c90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00051ca0 00 00 00 00 30 30 30 30 36 30 30 00 30 30 30 31 ....0000600.0001
00051cb0 37 35 30 00 30 30 30 31 37 35 30 00 30 30 30 30 750.0001750.0000
00051cc0 30 30 30 30 35 31 35 00 31 32 36 35 34 34 36 35 0000515.12654465
00051cd0 36 31 32 00 30 32 35 33 30 33 00 20 30 00 00 00 612.025303. 0...
00051ce0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
..
00051f60 63 6b 5f 71 75 6f 74 61 73 3d 4e 4f 0a 63 6c 65 ck_quotas=NO.cle
00051f70 61 72 5f 74 6d 70 5f 65 6e 61 62 6c 65 3d 59 45 ar_tmp_enable=YE
00051f80 53 0a 64 75 6d 70 64 65 76 3d 4e 4f 0a 00 00 00 S.dumpdev=NO....
00051f90 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
*
00052440 68 6f 6d 65 2f 73 74 65 66 66 65 6e 2f 73 65 63 home/steffen/sec
00052450 2e 61 72 65 6e 61 2f 63 6f 6e 66 69 67 73 2e 67 .arena/configs.g
00052460 69 74 2f 73 79 73 2e 6c 6f 63 61 6c 68 6f 73 74 it/sys.localhost
00052470 2f 66 62 73 64 2d 31 30 2f 65 74 63 2f 6d 61 6e /fbsd-10/etc/man
00052480 2e 63 6f 6e 66 00 00 00 00 00 00 00 00 00 00 00 .conf...........
00052490 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
000524a0 00 00 00 00 30 30 30 30 36 30 30 00 30 30 30 31 ....0000600.0001
000524b0 37 35 30 00 30 30 30 31 37 35 30 00 30 30 30 30 750.0001750.0000
000524c0 30 30 30 30 30 33 35 00 31 32 36 35 34 34 36 35 0000035.12654465
000524d0 36 31 32 00 30 32 35 34 34 37 00 20 30 00 00 00 612.025447. 0...
000524e0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
*
Thankful for how to make this valid again, for hints and how to
access the missing data easily.
Thank you!!
--steffen
