Alan McKinnon schrieb am 30.08.2010 18:32: > Apparently, though unproven, at 18:03 on Monday 30 August 2010, Paul Hartman > did opine thusly: > >> On Fri, Aug 27, 2010 at 9:04 PM, Daniel Pielmeier <bil...@gentoo.org> wrote: >>> Afaik if you are using GRUB LEGACY (0.97) and want to use LABEL/UUID in >>> your grub.conf/menu.lst you also need an initrd. I think with GRUB 2 >>> (1.98) it is possible without. You don't need an initrd for LABEL/UUID >>> in /etc/fstab for both cases. >> >> FWIW I'm using sys-boot/grub-0.97-r10 with GPT, labeled partitions and >> no initrd. My kernel has EFI_PARTITION compiled in (no module). >> >> My fstab looks like this: >> >> LABEL=swap none swap sw 0 0 >> LABEL=boot /boot ext2 defaults,noatime 1 2 >> LABEL=root / ext4 defaults,noatime 0 1 >> LABEL=home /home ext4 defaults,noatime 0 1 >> >> My kernel boot commandline still specified root by device name >> /dev/sda2 but otherwise my system works normally so far. :) > > Don't listen to nay-sayers. Your fstab will work just fine and there's > nothing > wrong with it. > > The LABEL= sysntax has also worked for years and years now on all grub- > supported filesystems that support volume labels. I don't know where a > previous poster got the idea from that it is not supported, or you need an > initrd - I have never used an initrd on Gentoo and have used that syntax > since > forever. > > Similar for claims of unreliability by someone else. The only cause I can > think of is using weird grub patches or some combination of insane flags.
If you are referring to my post please read again my statements. I am not a native speaker so I probably did not make this clear. I did not say that LABEL/UUID does not work within /etc/fstab. Specifying the root device by using the LABEL/UUID syntax in grub.conf/menu.lst however wont work without a proper initrd. I must confess I did not test it before but I was sure it does not work. I did some tests now (with sys-boot/grub-0.97-r10) and only the following syntax for the grub.conf kernel command-lines works. kernel /boot/kernel/kernel-2.6.35-gentoo-r4 root=/dev/sda3 All the others below need an initrd if you use GRUB LEGACY. Also the GRUB LEGACY manual [1] does not mention LABEL or UUID at all. With GRUB 2 it will probably work by using the --search menu entry [1]. kernel /boot/kernel/kernel-2.6.35-gentoo-r4 root=LABEL=root kernel /boot/kernel/kernel-2.6.35-gentoo-r4 root=/dev/disk/by-label/root kernel /boot/kernel/kernel-2.6.35-gentoo-r4 root=/dev/disk/by-uuid/ab24cad5-ae0b-45d7-82f4-68357d5b6ff4 [1] http://www.gnu.org/software/grub/manual/legacy/grub.html [2] http://www.gnu.org/software/grub/manual/grub.html#search -- Daniel Pielmeier
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