-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Marc Patino Gómez wrote: > Hi list, > > I am searching a way to backup a "special" logical volume. This special > lv doesn't contains a filesystem, it contains a hole image disk of a > running server (MBR,Partition Table, Partitions and filesystems), in > fact it is a VBD (Virtual Block Device) of a HVM Xen Guest. > > I want to be able to make the backup without shutting down the Virtual > Machine, but the traditional way : > > - make a snapshot > - mount snapshot > - backup the snapshots > - umount snapshot > - remove snapshot > > is not suitable for this kind of logical volumes. > > I search some information about it, but the only clue is: > > fdisk -l -u /dev/vg00/lv00 Hi Marc, You can use the kpartx tool for this. It was originally written as part of multipath-tools and it allows you to map the partitions on a device-mapper device like an LVM2 logical volume. E.g. you would run: # kpartx -a /dev/vg00/lv00 And that will scan lv00 for partitions and create new devices in /dev/mapper named lv00p1, lv00p2, ... that you can then use to access the content of the partitions. When you're done, run: # kpartx -d /dev/vg00/lv00 To remove the temporary kpartx maps. Regards, Bryn. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHA1w96YSQoMYUY94RAhW3AKC9n8+5tzN/FW38+qIUj0a82vvAMQCg0qYb bAWnKGAuyZnMoZZz089I2qg= =+xgZ -----END PGP SIGNATURE----- _______________________________________________ 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/
