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Old 03-02-2006, 08:14 AM   #1
boToo
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Registered: Aug 2003
Distribution: Kubuntu
Posts: 49

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problem dual booting with grub


Hi
I have Gentoo installed on my system. I ghosted my winxp onto one of my partition. I could not boot into windows but gentoo is fine. when i chose windows, i got Error 12: Invalid device requested. I tried some of the solution i found google and still getting same error. following is my partion table and grub.conf.

Disk /dev/hda: 30.0 GB, 30005821440 bytes
255 heads, 63 sectors/track, 3648 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hda1 1 13 104391 83 Linux
/dev/hda2 14 141 1028160 82 Linux swap / Solaris
/dev/hda3 142 3648 28169977+ f W95 Ext'd (LBA)
/dev/hda5 142 2054 15366141 83 Linux
/dev/hda6 * 2055 2692 5124703+ b W95 FAT32
/dev/hda7 2693 3648 7679038+ b W95 FAT32



grub.conf

# Which listing to boot as default. 0 is the first, 1 the second etc.
default 0
# How many seconds to wait before the default listing is booted.
timeout 5
# Nice, fat splash-image to spice things up
# Comment out if you don't have a graphics card installed
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title=Gentoo Linux
# Partition where the kernel image (or operating system) is located
root (hd0,0)
kernel /boot/linux-2.6.15-gentoo-r1 root=/dev/hda5

# The next four lines are only if you dualboot with a Windows system.
# In this case, Windows is hosted on /dev/hda6.
title=Windoes XP
rootnoverify (hd0,5)
makeactive
chainloader +1




With many Thanks
James
 
Old 03-02-2006, 08:31 AM   #2
jomen
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Maybe this will help you: http://www.gentoo.org/doc/en/grub-er....xml#doc_chap3
Also - from the splash-screen grub presents you with - press "c" and there you ara at the grub command-line and can give the commands manually (TAB completes what you typed in).
It might be because you "ghosted" it onto that partition - but that may be a reason but is not a really helpful guess, I know...
 
Old 03-02-2006, 09:11 AM   #3
boToo
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Registered: Aug 2003
Distribution: Kubuntu
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Thanks jomen,
I already tried that grub error solution, but still same problem, may be i need to reinstall window and then reinstall grub, But i am still not wanting to do it yet. anybody had that problem?
 
Old 03-02-2006, 09:36 AM   #4
aus9
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Registered: Oct 2003
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it is likely MS wants to think c partition is the first partition so study my tutorial on the map command or go in blindly at the command mode and try these (with an enter)

grub appears...press c
root (hd0,5)
hide (hd0,0)
map (hd0,0) (hd0,5)
map (hd0,5) (hd0,0)
makeactive
chainloader +1
boot


if it works copy into your linux /boot/grub/menu.lst file but remove the boot line
ps there is a gap between each bracket set
 
Old 03-02-2006, 06:32 PM   #5
boToo
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Registered: Aug 2003
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hi aus9
Thanks for your help,i could booted to window after issuing those command. but after i issued makeactive , i got error 12 again, but after boot command , it just straight into windows. then i edited grub.conf, but when i chose windows, it still give me same error, i guess it stuff at makeactive.
Thanks again for ur help
 
Old 03-02-2006, 06:45 PM   #6
boToo
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Registered: Aug 2003
Distribution: Kubuntu
Posts: 49

Original Poster
Rep: Reputation: 15
Hi
i could boot into both of them now, all i did was commented makeactive. my grub.conf was same as the the one in my post
grub.conf

# Which listing to boot as default. 0 is the first, 1 the second etc.
default 0
# How many seconds to wait before the default listing is booted.
timeout 5
# Nice, fat splash-image to spice things up
# Comment out if you don't have a graphics card installed
splashimage=(hd0,0)/boot/grub/splash.xpm.gz

title=Gentoo Linux
# Partition where the kernel image (or operating system) is located
root (hd0,0)
kernel /boot/linux-2.6.15-gentoo-r1 root=/dev/hda5

# The next four lines are only if you dualboot with a Windows system.
# In this case, Windows is hosted on /dev/hda6.
title=Windoes XP
rootnoverify (hd0,5)
#makeactive
chainloader +1

could anyone offer explaination to it?
Thanks for all ur replies
 
Old 03-02-2006, 07:00 PM   #7
syg00
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Manuals are a marvellous thing. Quote:
"makeactive Command
Set the active partition on the root disk to GRUB's root device. This command is limited to primary PC partitions on a hard disk."

Personally I can't see the point of ever using it if you are using grub as your loader.
 
  


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