On Tue, Sep 2, 2008 at 4:14 AM, Al Sparks data345@yahoo.com wrote:
--- On Mon, 9/1/08, Lanny Marcus lmmailinglists@gmail.com wrote:
From: Lanny Marcus lmmailinglists@gmail.com Subject: Re: [CentOS] I need help with GRUB To: "CentOS mailing list" centos@centos.org Date: Monday, September 1, 2008, 9:53 AM On Sun, Aug 31, 2008 at 11:31 PM, Sadaruwan Samaraweera slinuxworld@gmail.com wrote:>
On Mon, Sep 1, 2008 at 9:55 AM, Ian Forde
ian@duckland.org wrote:
On Mon, 2008-09-01 at 09:47 +0530, Sadaruwan
Samaraweera wrote:
Hello,
And the problem that I'm having is
with my two Linux distros. Ive
installed CentOS & Windows in my SATA HDD
and I've used my complete
40GB PATA HDD for Ubuntu. Well all OS's
work fine with out any
problems but when I want to boot into CentOS
I've to select the SATA
as my booting HDD from the BIOS if I want to
go to Ubuntu the I've to
select my PATA as the default HDD from the
menu. So what I want to do
is I need to add Both distros in to one GRUB
boot loader and the other
thing is that both grubs that I've on
both HDD s only detects the
windows Partition not the Linux partion. So I
need to to know how to
add bothe Linux versions I've into one
GRUB. I want to use the SATA
HDD as my default HDD.
You'll want to merge the grub boot stanzas
into one file, apply it to
one (or both) of the drives, and keep it in sync
when you do kernel
updates (because those affect the grub menu)...
This way, you won't have
to change the BIOS setting.
OK, thx for the quick reply but I realy don't know
how to do that can any
one help on that note.
Possibly what you need to do is add another entry in your /etc/grub.conf file, on the HD you boot from. Below is mine.
[lanny@dell2400 ~]$ sudo cat /etc/grub.conf Password: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,2) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/hda default=0 timeout=5 splashimage=(hd0,2)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.18-92.1.10.el5) root (hd0,2) kernel /vmlinuz-2.6.18-92.1.10.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.18-92.1.10.el5.img acpi=off title CentOS (2.6.18-92.1.6.el5) root (hd0,2) kernel /vmlinuz-2.6.18-92.1.6.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.18-92.1.6.el5.img acpi=off title CentOS (2.6.18-92.1.1.el5) root (hd0,2) kernel /vmlinuz-2.6.18-92.1.1.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.18-92.1.1.el5.img acpi=off title Windows XP rootnoverify (hd0,0) chainloader +1 [lanny@dell2400 ~]$ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
It's handy that someone posted their grub file.
The answer to your question/situation might be complicated by the fact that you use you have been changing your boot up disk in your BIOS.
But the thing to look for in your grub.conf file is:
title CentOS (2.6.18-92.1.1.el5) root (hd0,2) kernel /vmlinuz-2.6.18-92.1.1.el5 ro
Note that this example includes an entry for a hard drive:
root (hd0,2)That entry points to the "first" hard drive, third partition. If you have 2 hard drives, and you wanted to boot off the "second" drive first partition, you might use: root (hd1,0)
You basically want to look at the grub configuration for each OS on each hard drive you installed it on, and in consolidating them, "cut and paste" entries from what you want to be your secondary drive to your primary boot drive.
Again, this is only using the above grub.conf as an example. If you have SCSI hard drives instead then probably the grub.conf will show something like: root (sd0,2)
So it's important to look at your grub.conf and make modifications.
Hope this helps. If you want more specific advice, then post BOTH grub.conf files, and tell us which one will be from what you want to be your secondary drive, and what you want to be your primary drive (in BIOS). === Al _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos