Hello, I?m afraid I have over-written something important while using LVM (pvcreate), and need help restoring the system, or at least getting the data off of it. In short, while installing a new hard-disk to an existing FC4 system, I ran pvcreate twice on the new disk. The second time I used the ?ff option (it asked for it), after which LVM was no longer able to find the device with a certain uuid. The long story: I am responsible for a small computer lab, 5 machines running FC4 with a default install, including the default LVM setup. I needed to install a new 250GB hard drive in one of the machines. Put harddisk in case, connected cables, powered on. No smoke, bios detects the drive. The new hard disk shows up as /dev/sdb fdisk /dev/sdb to create a partition table, forget to set type. pvcreate /dev/sdb1 vgextend VolGroup00 /dev/sdb1 When preparing to lvextend I realized I?d forgotten to set the type with fdisk. fdisk again, this time also setting the type pvcreate /dev/sdb1 Gives error ?Cannot create physical volume without ?ff option? pvcreate ?ff /dev/sdb1 pvscan (just to check) Get the message ?couldn't find the device with uuid ?xxxxx-x-x-xx-x-x?? (no, it wasn?t x?s, but I don't want to copy the whole string by hand here) And of course now the computer doesn?t boot as it cannot read all of VolGroup00. The how-to suggests Use pvcreate to restore the metadata: pvcreate --uuid "<some_long_string>" --restorefile /etc/lvm/archive/VolumeGroupName_XXXXX.vg <PhysicalVolume> but I can't read /etc/lvm/archive since LVM can't load the volume group which contains /etc. Any help appreciated. _______________________________________________ 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/
