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Re: What are the two roots in grub?



On Mon, 2007-02-19 at 21:12 -0500, hendrik@topoi.pooq.com wrote:
> On Mon, Feb 19, 2007 at 03:16:06PM -0800, Andrew Sackville-West wrote:
> > On Mon, Feb 19, 2007 at 01:48:37PM -0500, hendrik@topoi.pooq.com wrote:
> > > On Mon, Feb 19, 2007 at 01:15:58PM -0500, Greg Folkert wrote:
> > > > On Mon, 2007-02-19 at 12:46 -0500, hendrik@topoi.pooq.com wrote:
> > > > > Do I understand this correctly?
> > > > > 
> > > > > In my /boot/grub/menu.lst there is a stanza
> > > > > 
> > > > > title		other: Debian GNU/Linux, kernel 2.6.18-3-486
> > > > > root		(hd0,7)
> > > >   ^^^^
> > > > This particular "root" is the "grub installation root" IOW it will load
> > > > the following line like this
> > > > 
> > > > (hd0,7)/vmlinuz-2.6.18-3-486 root=/dev/mapper/lovesong-other ro
> > > > 
> > > > > kernel		/vmlinuz-2.6.18-3-486 root=/dev/mapper/lovesong-other ro 
> > > >                                         ^^^^
> > > > That root is the "root" of your machine. and it is passed onto your
> > > > kernel as a command line option.
> > > 
> > > I see... so (hd0,7) is the partition where grub looks up all the 
> > > unadorned filenames bentioned in the stanza.  And the other root is the 
> > > root of the filesystem in the to-be-booted system.
> > > > 
> > 
> > yup. 
> > 
> > Maybe you're problem is in the initrd. If it is built to look for / in
> > place and you've moved it (which you've done by changing the root=
> > parameter, then maybe that is the problem. Try chrooting into the new
> > system and building a new initrd from within the chroot. It has worked
> > for me before (etch) when moving partitions around. 
> > 
> > A
> 
> Perhaps the simple solution to the original problem is to install etch 
> from scratch rather than try to upgrade sarge.
> 
> Still ... that makes it seem too much like Windows.

Well since you pulled a 70's IBM move:

     1. Shoot self in foot.
     2. Reload.
     3. Repeat.

It is not a Windows problem... buddy! (LOL)

-- 
greg, greg@gregfolkert.net

Novell's Directory Services is a competitive product to Microsoft's
Active Directory in much the same way that the Saturn V is a competitive
product to those dinky little model rockets that kids light off down at
the playfield. -- Thane Walkup

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