Re: How to Backup and Restore MBR within Logical Volumes?

> Maybe I didn't really understand your setup, but... isn't your mbr simply on /dev/loop1?

Yes, you are right.

root@sysresccd /mnt/hitachi/test % fdisk -l /dev/loop1

Disk /dev/loop1: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x2b362b35

      Device Boot      Start         End      Blocks   Id  System
/dev/loop1p1   *           1        6526    52420063+   7  HPFS/NTFS

I am so used with device nomenclature of harddisks being /dev/hda, /dev/hdb, /dev/sda, /dev/md0, /dev/xvda, etc that it didn't occur to me that the device node of my virtual machine in a logical volume is very simply /dev/loop1 after I have performed the "losetup /dev/loop1 /dev/volumegroup/logicalvolume" step.

Thank you very much for enlightening me! Now I can proceed with writing the backup and restore script for my Fedora 11 Dom0 (all partitions using LVM2 logical volumes) and all of my Xen virtual machines (contained in logical volumes).

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