Just a guess, but maybe what you're seeing is grub's inability to read LVM partitions? ISTR that grub has built-in knowledge of common linux filesystems, which is why you don't have to rerun grub like you do with lilo - because ISTR that lilo is saving a list of blocks to read somewhere for boot time, so that it won't need filesystem knowledge. But I wouldn't be surprised a bit of an ext3 over LVM2 isn't represented on-disk differently from just ext3, which might mean that grub would need LVM2 knowledge. Just a totally-wild-guess. HTH. On Mon, 2005-06-06 at 09:50 -0700, rich turner wrote: > using a partition works fine. but i am trying to understand why i can't > write my grub bootloader to a disk that is being used as a physical > volume. is grub and lvm using the same part of the disk for its own use? > > > On Mon, 2005-06-06 at 11:36 -0500, Alan Jurgensen wrote: > > You may want to create a Linux LVM partition, and using that in lvm > > (pvcreate /dev/hdb1)... > > > > > > rich turner wrote: > > > > >i have a volume group built on a physical volume that is the > > >disk /dev/hdb. when i write the grub bootloader to that disk, it appears > > >that the bootloader overwrites part or all of the lvm data on that disk, > > >essentially wiping out my volume group. does anyone know if that is > > >normal or if lvm and grub indeed share the same place on the disk? > > > > > >_______________________________________________ > > >linux-lvm mailing list > > >linux-lvm@redhat.com > > >https://www.redhat.com/mailman/listinfo/linux-lvm > > >read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > > > > > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ >
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