It seems you use the lvm provied by fc11 defaultly . in fc12 it seems not work "./dev/md/0_0: No such device" means could not found the /dev/md/.... .Re format the disk and have try ! Good luck! <div>2009/12/1, Peter J. Stieber <<a href="mailto:developer@toyon.com">developer@toyon.com</a>>: <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">I'm trying to use x86_64 network install CD to load F12 on an ASUS P5Q MB. The machine was successfully running F11. I tried to upgrade using the network install CD, but I ran into some problem. I blamed this on the fact I was also using the rpm fusion repository, but I didn't really look into the cause. I reloaded F12 from scratch, wiping out the original install. I made it to the reboot prompt, but when I rebooted I was left with... Boot has failed, sleeping forever. I booted using the rescue CD, mounted the drive, and removed rhgb and quite from the grub.conf file. The result hinted that a raid device wasn't detected. The machine only has on SATA drive and it was never setup or used in a raid configuration. Here's what I see when I try to boot the machine... [drm] DAC-10: set mode 1280x1024 1d Console: switching to colour frame buffer device 160x64 [drm] nouveau 0000:01:00.0: 0x121B: parsing clock script 0 fb0: nouveaufb frame buffer device registered panic notifier [drm] Initialized nouveau 0.0.15 20090420 for 0000:01:00.0 on minor 0 dracut: Starting plymouth daemon dracut: Starting plymouth daemon dracut: rd_NO_DM: removing DM RAID activation dracut: rd_NO_DM: removing DM RAID activation dracut: rd_NO_MDIMSM: no MD RAID for imsm/isw raids dracut: rd_NO_MDIMSM: no MD RAID for imsm/isw raids Initializing USB Mass Storage driver... scsi4 : SCSI emulation for USB Mass Storage devices usbcore: registered new interface driver usb-storage USB Mass Storage support registered. md: bind<sda> dracut: Assembling MD RAID arrays dracut: Assembling MD RAID arrays md: linear personality registered for level -1 linear: not enough drives present. Aborting' md: pers->run() failed ... dracut: mdadm: failed to start array /dev/md/0_0: No such device dracut: mdadm: failed to start array /dev/md/0_0: No such device scsi 4:0:0:0: CD-ROM PIONEER DVD-RW DVR-105 1.21 PQ: 0 ANSI: 0 sr0: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray Uniform CD-ROM driver Revision: 3.20 sr 4:0:0:0: Attached scsi generic sg1 type 5 dracut: rd-NO_DM: removing DM RAID activation dracut: rd_NO_MDIMSM: no MD RAID for imsm/isw raids dracut: Assembling MD RAID arrays dracut: mdadm: failed to start array /dev/md/0_0: No such device Boot has failed, sleeping forever. Any ideas? Pete -- fedora-list mailing list <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:fedora-list@redhat.com" target="_blank">fedora-list@redhat.com</a> To unsubscribe: <a onclick="return top.js.OpenExtLink(window,event,this)" href="https://www.redhat.com/mailman/listinfo/fedora-list" target="_blank">https://www.redhat.com/mailman/listinfo/fedora-list</a> Guidelines: <a onclick="return top.js.OpenExtLink(window,event,this)" href="http://fedoraproject.org/wiki/Communicate/MailingListGuidelines" target="_blank">http://fedoraproject.org/wiki/Communicate/MailingListGuidelines</a> </blockquote></div>