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Old 9th October 2006, 04:20 AM
noobie_jhay Offline
Registered User
Join Date: Oct 2006
Posts: 11
dual booting between Fedora and Ubuntu

Hi guys,

im just a new fedora user and i have just installed fedora core 5 on my system... i had an existing linux os before (ubuntu dapper drake), which, by the way, is also just a new thing for me... the problem is that after i installed fedora, grub no longer gives me the option to boot to my ubuntu os.

i have partitioned my 40 gig hard drive in this manner:

6 gigs for /root (active partition)
6 gigs for /home (logical partition)
1 gig for /swap (logical partition)
10 gig fat32 partition for my data backups (logical partition)

250 mb for /boot (active partition)
768 mb for /swap (under lvm)
6 gigs for /root (lvm)
the rest for /home (lvm)

though im not sure about this, i guess i need to edit grub so it could remap my hard drive and add the other os installed, but like what i've said, im not really sure about it... so im really hoping you could help me out on this one. thanks so much in advance!
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Old 10th October 2006, 02:38 AM
snoze Offline
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Join Date: Jun 2005
Location: INDIA
Posts: 809
hey try to install FC first. During partion create one additional partition like hda9(whatever in ur case).Mount Ubuntu in this partion. Use same swap but don't install boot loader. Instead later copy Ubuntu grub lines into fedora grub . try and good luck.
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Old 10th October 2006, 05:50 PM
noobie_jhay Offline
Registered User
Join Date: Oct 2006
Posts: 11
hi snoze, thanks for the reply... but is there any other way i cud work around it... i've just finished 6 hours of downloading and installing updates in fc5 and i wudn't really wanna do that again unless i really need to.... hope u understand my case...]
thanks again!
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Old 11th October 2006, 11:07 AM
pessimist Offline
Registered User
Join Date: Nov 2005
Posts: 19
You'll need to edit your grub.conf in /boot/grub.

Add a section like the following -

title Ubuntu, kernel 2.6.15-23-686
root (hd0,6)
kernel /boot/vmlinuz-2.6.15-23-686 root=/dev/sda7 ro quiet splash
initrd /boot/initrd.img-2.6.15-23-686

title Ubuntu, kernel 2.6.15-23-686 (recovery mode)
root (hd0,6)
kernel /boot/vmlinuz-2.6.15-23-686 root=/dev/sda7 ro single
initrd /boot/initrd.img-2.6.15-23-686

Obviously you'll need to change the kernel lines to match your Ubuntu kernel and change the "root" line to match your Ubuntu partition.

If you don't know your Ubuntu kernel version take a look in /lib/modules on your Ubuntu partition. All valid choices should be listed there.

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booting, dual, fedora, ubuntu

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