install grub on LVM

[Fred Grant]

On Tue, 2007-09-18 at 10:02 -0500, Bob McClure Jr wrote:
> On Tue, Sep 18, 2007 at 06:39:20AM -0500, Fred Grant wrote:
> > I want to install grub on hd1 boot partition which is LVM.
OK it's not LVM, it's ext3.  I must have been looking at swap.
> 
> hd1?  Do you mean hda?  Or hda1?
> hda1
> I didn't think you could boot LVM partitions.  Let's be clear on this.
> An LVM partition is somewhat like an extended partition in that it
> does not contain any kind of filesystem.  It does, however, contain
> one or more logical volumes each of which which may contain a
> filesystem.
> 
> Customarily, there is (at least) one plain linux partition with an
> ext[23] filesystem on it, which is designated as the /boot partition.
> You will likely have another partition, type LVM, which contains one
> or more logical volumes containing filesystems for /, /home, etc.
> Still, you would normally install grub on the MBR of that disk, e.g.,
> for /dev/hda
> 
>   grub-install /dev/hda
I did this and result is indicated below.
> 
> Care to share a bit more information about your desired setup?
------------
fdisk:
Disk /dev/hda: 30.7 GB, 30750031872 bytes
255 heads, 63 sectors/track, 3738 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1   *           1          13      104391   83  Linux
/dev/hda2              14        3738    29921062+  8e  Linux LVM

Disk /dev/hdb: 61.4 GB, 61492838400 bytes
255 heads, 63 sectors/track, 7476 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hdb1   *           1        7288    58540828+  83  Linux
/dev/hdb2            7289        7476     1510110    5  Extended
/dev/hdb5            7289        7476     1510078+  82  Linux swap /
Solaris

Disk /dev/dm-0: 29.5 GB, 29527900160 bytes
255 heads, 63 sectors/track, 3589 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-0 doesn't contain a valid partition table

Disk /dev/dm-1: 1073 MB, 1073741824 bytes
255 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/dm-1 doesn't contain a valid partition table
-------------------
Per the above, I have F5 installed on hda and Ubuntu live cd on hdb.  In
BIOS I select "boot from HDD1" and boot fails.  If I select "boot from
HDD2", boot succeeds.  Is it possible that BIOS considers hda to be
HDD2? Can it be toggled?  I don't play around with BIOS much because it
scares me.
> 
> >
-- 
Fred