I've been digging around a bit and I found that /etc/lvm/archive has some information that might be useful for restoring my LVM data. I've attached the latest VGforMythTV_00008.vg data (before the versions for the new ones that I created). I read on this blog: <a href="http://codeworks.gnomedia.com/archives/2005/general/lvm_recovery/">http://codeworks.gnomedia.com/archives/2005/general/lvm_recovery/</a> that this information could be used to recreate my physical volumes using a command like this: [mythtv@localhost archive]# /usr/sbin/pvcreate -u J3hQY6-8yfK-pMPS-dGhN-WFig-ENnC-LSR2nn /dev/hdb1 Can't initialize physical volume "/dev/hdb1" of volume group "VGforMythTV" without -ff I am hesitant to use the "-ff" (force) command without knowing what the impact will be. Any advice? Thanks, -Argus VGforMythTV_00008.vg --------------------------------------- # Generated by LVM2: Mon Apr 11 22:59:52 2005 contents = "Text Format Volume Group" version = 1 description = "Created *before* executing '/usr/sbin/lvextend --size +160G /dev/VGforMythTV/video'" creation_host = "localhost.localdomain " # Linux localhost.localdomain 2.6.10-1.737_FC3 #1 Mon Jan 10 13:50:10 EST 20 05 i686 creation_time = 1113274792 # Mon Apr 11 22:59:52 2005 VGforMythTV { id = "YKYYOd-PcmN-lGub-gllT-6d0j-IyGp-BweNJY" seqno = 3 status = ["RESIZEABLE", "READ", "WRITE"] extent_size = 131072 # 64 Megabytes max_lv = 0 max_pv = 0 physical_volumes { pv0 { id = "J3hQY6-8yfK-pMPS-dGhN-WFig-ENnC-LSR2nn" device = "/dev/hdb" # Hint only status = ["ALLOCATABLE"] pe_start = 384 pe_count = 3038 # 189.875 Gigabytes } pv1 { id = "5DR2ds-AXzi-Om4M-Mg1R-KpRQ-swOr-JHQTUa" device = "/dev/hdc" # Hint only status = ["ALLOCATABLE"] pe_start = 384 pe_count = 2442 # 152.625 Gigabytes } } logical_volumes { video { id = "gscBJa-pCAA-Yv25-kOHu-9U6z-K7iQ-1dpm42" status = ["READ", "WRITE", "VISIBLE"] segment_count = 1 segment1 { start_extent = 0 extent_count = 3024 # 189 Gigabytes type = "striped" stripe_count = 1 # linear stripes = [ "pv0", 0 ] } } } } <div>On 6/23/06, Argus Array <<a href="mailto:argusarray2@gmail.com"> argusarray2@gmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>Terribly sorry for the double post to the mailing list, accidentally hit the google shortcut. I have been using LVM for several months to record video files for my PVR across a 200GB and 160GB disk (hdb and hdc). Recently I decided to upgrade my FC3 install to FC5. After the install, my LVM mount does not come up. It appeared that all of the LVM information in /dev/ was gone; however, only the non-LVM drive (/dev/hda) should have been touched by the FC5 upgrade. This is my fstab entry: /dev/VGforMythTV/video /var/media xfs defaults 1 1 This is what fdisk shows: /dev/hdb1 1 24792 199141708+ 8e Linux LVM /dev/hdc1 1 19929 160079661 8e Linux LVM In my attempt to fix this, I think I may have totally fouled things up; I tried to create a new volume group with the same name and more PVs for the new drives, then combine them together into an PV with the old LV name. However, this still does not allow it to mount. Any ideas? Have I deleted all my data? Thanks for any help, Argus I've pasted my history commands below. 548 more /etc/fstab 549 vgcreate VGforMythTV -s 64m /dev/hda1 550 /usr/sbin/vgcreate VGforMythTV -s 64m /dev/hda1 551* 552 /usr/sbin/pvcreate /dev/hdb1 553 /usr/sbin/pvcreate /dev/hdc1 554 /usr/sbin/vgcreate VGforMythTV /dev/hdb1 /dev/hdc1 555 mount /dev/VGforMythTV /var/media 556 mount /dev/VGforMythTV/video /var/media 557 mount /dev/VGforMythTV/media /var/media 558 lvcreate --name video VGforMythTV 559 /usr/sbin/lvcreate --name video VGforMythTV 560 /usr/sbin/lvcreate --name video -l VGforMythTV 561 /usr/sbin/lvcreate --name video -l ` VGforMythTV 562 /usr/sbin/lvcreate --name video -l 1 VGforMythTV 563 mount /dev/VGforMythTV/media /var/media 564 mount /dev/VGforMythTV/video /var/media 565 mount -t xfs /dev/VGforMythTV/video /var/media 566 mount /dev/VGforMythTV/video /var/media 567 /usr/sbin/lvcreate --name video -l 2 VGforMythTV 568 ls 569 /usr/sbin/pvdisplay 570 /usr/sbin/lvmdiskscan 571 mount /dev/VGforMythTV /var/media/ 572 mount /dev/VGforMythTV/video /var/media/ 573 mount /dev/VGforMythTV/media /var/media/ 574 mount /dev/VGforMythTV/video /var/media/ 575 /sbin/fdisk /dev/hdb 576 /sbin/fdisk /dev/hdc 577 /usr/sbin/vgextend 578 more /etc/fstab 579 /usr/sbin/vgextend VGforMythTV /dev/hdb1 580 /usr/sbin/vgextend VGforMythTV /dev/hdb </div></blockquote></div>