 | | | boot hdb? | boot hdb? 2004-01-13 - By Otto Haliburton
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Resending message because of spell check changing HDA
> -- --Original Message-- --
> From: redhat-list-admin@(protected) [mailto:redhat-list-admin@(protected)]
> On Behalf Of Otto Haliburton
> Sent: Tuesday, January 13, 2004 7:54 AM
> To: redhat-list@(protected)
> Subject: RE: boot hdb?
>
>
>
> > -- --Original Message-- --
> > From: redhat-list-admin@(protected) [mailto:redhat-list-admin@(protected)]
> > On Behalf Of Martin J. Stumpf
> > Sent: Tuesday, January 13, 2004 7:28 AM
> > To: redhat-list@(protected)
> > Subject: Re: boot hdb?
> >
> > Greg,
> >
> > Assuming you have both drives in your box and you have just installed
> > RH9 onto hdb and your goal is as stated which I read to mean that you
> > want to make hdb the primary installation and boot off of it.
> >
> > Option one: Change the boot order in BIOS if possible. (most new BIOS
> > can do this)
> > 1. Boot into grub on your current hda and then install grub onto hdb 's
> > mbr.
> > 2. Go into your BIOS at boot and change the boot order of the hard
> drives.
> > 3. Now your old hda will be hdb but at boot, grub should load your RH9
> > as expected.
> > Note: this assumes that your grub.conf if already correct for the new
> > installation.
> >
> > Option two: Dual boot off two hd 's
> > 1. Boot into grub off of hda.
> > 2. edit the config file <e at the grub screen > such that you can boot
> > off of hdb.
> > 3. This might look like:
> > map (hd1) (hd0)
> > root (hd1, 2) # assuming that your boot partition is the third
> > partition
> > kernel /vmlinuz root=/dev/hda1
> > initrd /initrd.img
> > 4. If this works then permanently edit the /boot/grub/grub.conf file
> >
> > HTH,
> >
> > -Martin
> >
> >
> > g whitley mott wrote:
> >
> > >goal: replace hda (with a bigger drive)
> > >limits: no floppy, no cd burner
> > >
> > >how do i do it?
> > >
> > >rh9 is running on hdb. grub boots off hda, of course, so when i
> replace
> > >hda, i 'll lose my mbr.
> > >
> > >i have at hand a set of rh7.2 cd 's. but even having booted the rescue
> > >cd, i don 't see how then to boot into my working rh9 partition on hdb.
> > >
> > >i can invoke grub while on the rescue cd. it can install an mbr. but
> > >if i try to set root to (hd1,2), and install an mbr, i just get
> > >something about wrong cylinder size or some such message when i try to
> > >boot.
> > >
> > >with grub running on the rescue cd, i can load the configfile from my
> > >rh9 partition on hdb. but it won 't let me just go and boot. that 's
> all
> > >i really want to do. how do i do it?
> > >
> > >tia,
> > >greg
> > >
> > >
> >
> >
> > --
> > -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
> > Martin J. Stumpf
> > Division of Medical Imaging Physics, Department of Radiology
> > Johns Hopkins University School of Medicine
> > 601 North Caroline Street / JHOC 4230
> > Baltimore, Maryland 21287-0855 USA
> > Voice: (410) 614-0115 Fax: (410) 614-9979
> >
> >
Actually it is very simple. Don 't worry about temporarily losing your
mbr.
Install whatever on HDA as normal with it 's boot, which will create a mbr.
Use the boot disk that you are going to create before starting this
process boot and reinstall grub on HDA and guess what you will be where you
started.
>
>
>
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