Hi ML, i'm writing a script to update my servers. Before updating, i'd like to create a snapshot of the root-directory (/). If something goes wrong with the update, I have a consistent backup. I try to redirect stdout and stderr to a logfile for being able to check everything afterwards. The redirection has problems with lvcreate. This is my script (excerpt): ============================================================ lvremove -fv /dev/vg1/lv_root_snapshot &> /var/log/update.log lvcreate -v -L 45G -n lv_root_snapshot -s vg1/lv_root >> /var/log/update.log 2>&1 zypper -n up -y -t patch --skip-interactive >> /var/log/update.log 2>&1 ============================================================ With the second line I try to create the lv and redirect stdout/stderr to a log file. The whole system stop by executing the second line, this are the last lines in my log: ============================================================ lvcreate Setting logging type to disk lvcreate Setting chunksize to 8 sectors. lvcreate Finding volume group "vg1" lvcreate Archiving volume group "vg1" metadata (seqno 99). lvcreate Creating logical volume lv_root_snapshot lvcreate Creating volume group backup "/etc/lvm/backup/vg1" (seqno 100). lvcreate Found volume group "vg1" lvcreate activation/volume_list configuration setting not defined: Checking only host tags for vg1/lv_root_snapshot lvcreate Creating vg1-lv_root_snapshot lvcreate Loading vg1-lv_root_snapshot table (252:1) lvcreate Resuming vg1-lv_root_snapshot (252:1) lvcreate Clearing start of logical volume "lv_root_snapshot" lvcreate Creating logical volume snapshot0 lvcreate Found volume group "vg1" lvcreate Found volume group "vg1" lvcreate Creating vg1-lv_root-real lvcreate Loading vg1-lv_root-real table (252:2) lvcreate Loading vg1-lv_root table (252:0) lvcreate Creating vg1-lv_root_snapshot-cow lvcreate Loading vg1-lv_root_snapshot-cow table (252:3) lvcreate Resuming vg1-lv_root_snapshot-cow (252:3) lvcreate Loading vg1-lv_root_snapshot table (252:1) lvcreate Suspending vg1-lv_root (252:0) with filesystem sync with device flush =========================================================== I tried it several times, and the system always stop at this point. When I execute the same command manually in a shell no change. Stop. Redirecting the lvremove command on a shell in the same manner is working fine: lvremove -fv /dev/vg1/lv_root_snapshot >> /var/log/update.log 2>&1 system continues running. lvcreate manually in a shell and only redirecting stdout is working fine: lvcreate -v -L 45G -n lv_root_snapshot -s vg1/lv_root >> /var/log/update.log system continues running Only the combination of redirecting stdout and stderr to the logfile stops the system completely: lvcreate -v -L 45G -n lv_root_snapshot -s vg1/lv_root >> /var/log/update.log 2>&1 Any ideas ? my system: SLES 11 SP3 64bit vm58820-6:~ # lvm version LVM version: 2.02.98(2) (2012-10-15) Library version: 1.03.01 (2011-10-15) Driver version: 4.23.0 1 lv for the root-directory, /boot is a "real" partition 1pv, 1 vg Bernd -- Bernd Lentes Systemadministration Institut für Entwicklungsgenetik Gebäude 35.34 - Raum 208 HelmholtzZentrum münchen bernd.lentes@helmholtz-muenchen.de phone: +49 89 3187 1241 fax: +49 89 3187 2294 http://www.helmholtz-muenchen.de/idg Die Freiheit wird nicht durch weniger Freiheit verteidigt Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH) Ingolstädter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir´in Bärbel Brumme-Bothe Geschäftsführer: Prof. Dr. Günther Wess, Dr. Nikolaus Blum, Dr. Alfons Enhsen Registergericht: Amtsgericht München HRB 6466 USt-IdNr: DE 129521671 _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
