On Friday 13 November 2009, Tom H wrote: >> In my experience, >> the UUID is also embedded internal to the initrd.img >> and this also should be consistent with the UUID in grub.conf >> >> [root@localhost clean]# less init >> >> near the end look for "mkrootdev" line: >> echo Creating root device. >> mkrootdev -t ext3 -o defaults,ro >> UUID=54c84c0a-040b-43bd-8887-202519baaae2 >> >> So my question remains: >> If i try to use labels instead of UUID, do i have to modify this >> mkrootdev line in init (initrd.img) ? I believe this was Tom H's question, not mine although I am the threads OP. >As long as the UUID in init (in initrd) and the root entry in >grub.conf (whether UUID, LABEL, or /dev/xxxx) point to the same >partition, you are OK. > You may want to check your facts on that actually being in the initrd file. My 2.6.32-rc6 initrd, copied from the failing drive with 'rsync -avcAX src target' syntax, which I booted with after swapping a new drive onto the sata1 connector, did not require a rebuild, I simply changed grub.conf to use a 'root=LABEL=sea-slash' while in rescue mode and chroot'ed, fixed a couple of other typu's, did a 'grub-install /dev/sda" and rebooted. If its in there, then it is apparently being over-ridden by the data in the new /etc/fstab. I have since installed 2.6.32-rc7, and as noted in a previous msg a few minutes ago, the machine is obviously much snappier now. Logically, the root (hd0,0) must over-ride any UUID's that may be in the initrd.img, otherwise it could not possibly have found even the grub.conf to show me at boot time. Some _real_ docs on grub would be VERY nice. >That it why you can switch the grub.conf entries without having to >change the UUID (or whatever other way that you are pointing to the >root partition). In my case, /boot is a separate partition, so in base 0 notation, its all 'root (hd0,0)' on a line by itself. And it Just Works(TM) I can, in a different grub.conf stanza on (hd0,0)/grub/grub.conf, specify root (hd3,0), then the UUID of the / partition that contains another distributions / directory and boot to it just fine. -- Cheers, Gene "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) The NRA is offering FREE Associate memberships to anyone who wants them. <https://www.nrahq.org/nrabonus/accept-membership.asp> Diplomacy is to do and say, the nastiest thing in the nicest way. -- Balfour -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
