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From: | peter.chiu |
Subject: | [Bug-tar] tar 1.23 --no-check-device not working on automounted NFS file systems |
Date: | Fri, 27 Aug 2010 11:03:45 +0100 |
Hello, I wonder if anyone can shed some lights on this. I am using automounter to mount a few file systems from a
Suse 9.3 to a Red Hat 5.3 box. I then use tar to perform full and incremental backups, but
the incrementals always turn out to be full backups. Below are the details. I shall be grateful if
someone can tell me what I have missed out to cause this. File system: /misc/solar_sohos1 address@hidden tmp]# ls /misc/solar_sohos1 cds config eofcs mirror
quota.group quota.user scripts SOHO solarsoft
tmp xrp Y2K address@hidden tmp]# df -h /misc/solar_sohos1 Filesystem
Size Used Avail Use% Mounted on solar:/sohos1
31G 16G 15G 52% /misc/solar_sohos1 address@hidden tmp]# ls -ls /misc/solar_sohos1 total 41 0 drwxr-xr-x 5 master
cds 160 Apr 25 1997 cds 0 drwxr-xr-x 14 master EGSE_GRP 400 Sep
12 1997 config 0 drwxr-xr-x 4 master
cds 232 Jul 21 2009 eofcs 1 drwx------ 8 master EGSE_GRP 1040
Jul 3 1997 mirror 8 -rw-r----- 1 root
games 8192 Dec 14 1999 quota.group 32 -rw-r----- 1 root
games 32768 Dec 17 1999 quota.user 0 drwxr-xr-x 2 root
root 48 Apr 6 1995
scripts 0 drwxr-xr-x 11 master EGSE_GRP 384 Apr
25 1997 SOHO 0 drwxr-xr-x 4 master
cds 96 May 8 1997
solarsoft 0 drwxr-xr-x 2 master EGSE_GRP
48 Apr 22 2004 tmp 0 drwxr-xr-x 2
286 115 48 Jan 12 1995
xrp 0 drwxr-xr-x 5 master EGSE_GRP 184
Mar 14 2000 Y2K Basically no recent change in the file system. I used this command to backup the file system to tape: tar --one-file-system -g
/csupport/backup/solar-solar_sohos1.snar -cpvf /dev/nst1 -b 1024
--no-check-device --directory /misc/solar_sohos1 . But repeating the command will backup a full 16GB of data to
tape again. I did try to change the destination to disk under /tmp, but
get the same result. tar --one-file-system -g
/csupport/backup/solar-solar_sohos1.snar -cpvf
/tmp/sohos1/sohos1.tar -b 1024 --no-check-device --directory
/misc/solar_sohos1 . address@hidden tmp]# less solar-solar_sohos1.snar "solar-solar_sohos1.snar" may be a binary
file. See it anyway? GNU tar-1.23-2 address@hidden@address@hidden@address@hidden@address@hidden/eofcs/lrg_data/address@hidden@address@hidden@address@hidden@86 address@hidden@address@hidden@./cds/data/chianti_1.01/address@hidden@Yarnaud_rothenflug.i Any idea what is happening here? Regards, Peter Chiu STFC Rutherford Appleton Laboratory Space Science & Technology Department Building R25, Room 2.02 Chilton Didcot OXON OX11 0QX Phone: 01235-446699 Fax: 01235-445848 Email: address@hidden --
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