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Old 06-15-2007, 08:00 AM   #1
Registered: Nov 2005
Location: Brazil, Po - So Paulo
Distribution: Debian Etch
Posts: 110

Rep: Reputation: 15
Adding a new Linux Installation to Grub

Hello All!!

I have two HDs of 80GB that are set in RAID. When I attempted to install Red Hat EL 5 on my box it identified all my 160GB and the installation was just fine. I had to install another version of Red Hat in the same box so I skipped the step to install Grub.

Below is my partitioning schema:

Disk /dev/mapper/nvidia_ifbacfhg: 160.0 GB, 160052674560 bytes
255 heads, 63 sectors/track, 19458 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/mapper/nvidia_ifbacfhg1 * 1 13 104391 83 Linux
/dev/mapper/nvidia_ifbacfhg2 14 6387 51199155 83 Linux
/dev/mapper/nvidia_ifbacfhg3 6388 7024 5116702+ 82 Linux swap / Solaris
/dev/mapper/nvidia_ifbacfhg4 7025 19458 99876105 5 Extended
/dev/mapper/nvidia_ifbacfhg5 7025 7037 104391 83 Linux
/dev/mapper/nvidia_ifbacfhg6 7038 13411 51199123+ 83 Linux

/dev/mapper/nvidia_ifbacfhg1 -> /boot
/dev/mapper/nvidia_ifbacfhg2 -> /
/dev/mapper/nvidia_ifbacfhg3 -> swap

/dev/mapper/nvidia_ifbacfhg5 -> /boot
/dev/mapper/nvidia_ifbacfhg6 -> /

The following is the default menu.lst from the First Installation:

# 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 (hd0,0)
# kernel /vmlinuz-version ro root=/dev/mapper/nvidia_ifbacfhgp2
# initrd /initrd-version.img
title Red Hat Enterprise Linux Server (2.6.18-8.el5)
root (hd0,0)
kernel /vmlinuz-2.6.18-8.el5 ro root=LABEL=/ rhgb quiet
initrd /initrd-2.6.18-8.el5.img

What should I put in my menu.lst to add the second installation of Red Hat?

Thank You!!
Old 06-15-2007, 08:16 AM   #2
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
Distribution: Ubuntu
Posts: 9,211

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title Red Hat 2nd install
root (hd0,5)
kernel /vmlinuz-kver-rh2 ro root=LABEL=/ rhgb quiet
initrd /initrd-kver-rh2.img
Old 06-15-2007, 08:43 AM   #3
Registered: Nov 2005
Location: Brazil, Po - So Paulo
Distribution: Debian Etch
Posts: 110

Original Poster
Rep: Reputation: 15
Hello Simon!

That's exactly the way I did, but when I try to boot it after include these line I get the following error message:

root (hd0,5)
Filesystem type is ext2fs, partition type 0x84
kernel /vmlinuz-2.6.18-8el5 ro root=LABEL=/ rhgb quiet
Error 15: File not found

If I boot from the first installation and manually mount the /dev/mapper/nvidia_ifbacfhg5 partition that's where the kernel is located I can see that it's really there.

Best Regards!!



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