On Mon, Oct 17, 2011 at 2:16 AM, Raf Czlonka <r...@linuxstuff.pl> wrote: > On Fri, Oct 14, 2011 at 02:23:25AM BST, Magicloud Magiclouds wrote: >> The error was "cannot find root $UUID" specified in root bootflag. >> I thought something wrong so the uuid of the root was changed. So in >> busybox, I `ls -l /dev/disk/by-uuid`, I got two items: dm-1(I am not >> quite sure now, maybe it displayed dm-0.), sda1. I knew sda1 was /boot >> partition, so I changed boot cmdline with the uuid I found temporally. >> Still cannot boot up. No root found with the new uuid. >> Then I changed bootflag root to device name >> (/dev/mapper/vgroot-lvroot). Then things worked. >> In the boot-uped system, I `ls -l /dev/disk/by-uuid`, and found >> that, the uuid of root is still the same as in boot cmdline, and the >> device is dm-0. dm-1 is the swap. > > Could you do it again or on a running system and redirect the output to > a file, then attach the file to an email? > >> So to sum up, my system cannot find lvm root device (dm-0) and its >> uuid at boot up. But can be booted up by its device name >> (/dev/mapper/vgroot-lvroot). And in boot-uped system, the root device >> looks fine in /dev. >> What happened? How to fix this? > > You hadn't mentioned what architecture you're running and what > bootloader you're using. > What if you regenerate initrd/initramfs? > > Regards, > -- > Raf > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/20111016174848.ga3...@linuxstuff.pl > >
Hi there, Sorry for the delayed reply. I am using grub on x86_64. And regenerate initramfs (default configuration) did not help. Only way to work I know is to change root bootflag to "/dev/mapper/vgroot-lvroot", uuid or /dev/vgroot/lvroot won't work. I am not sure how to redirect the output to a file. It was at the very beginning of booting up. -- 竹密岂妨流水过 山高哪阻野云飞 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cabert4fyfcgzvozpwbvq9ouassfk2tgajk42qfcp-ggm0cw...@mail.gmail.com
