Simple dual boot - grub issue

2010-06-21 Thread Jason Filippou
Hello list,

I have had a laptop wearing Linux solely over the last few years and
today I decided I'd install a Windows partition on it, with aim to
dual boot. After preparing an NTFS partition by using the gparted live
CD, I installed Windows 7 on the newly created partition. Thus, so far
I have the primary partitions /dev/sda1, an ext3 partition holding my
Squeeze installation, and /dev/sda2, holding my Windows installation.
There's also the /dev/sda3 extended partition and the /dev/sda5
swap partition. Here's a gparted screenshot taken from within my
debian installation to prove my claims:
http://img199.imageshack.us/img199/1819/mypartitions.jpg

When the installation was finished, I would only boot into Windows 7.
Somewhat accustomed to this loss of the Grub boot loader, I booted
from my Squeeze installation CD, entered Rescue Mode and reinstalled
GRUB in the MBR of my only hard drive (that corresponds to the
/dev/sda1 partition). However, even though I reclaimed Grub, Grub
would not detect my Windows partition on bootup, and give me the
options of boot into debian. I tried reinstalling GRUB on other
partitions, but Windows was (and still is) unbootable on startup.

I had a look at my grub.cfg and didn't see a menuentry corresponding
to the windows partition, even after running update-grub. What are the
steps that I need to follow in order to dual boot my system? The only
OS I have currently access to through Grub is Debian (with the option
of two kernels, but that's not really relevant).

Thanks.


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Re: Simple dual boot - grub issue

2010-06-21 Thread Thierry Chatelet
On Monday 21 June 2010 23:56:53 Jason Filippou wrote:
 Hello list,
 
 I have had a laptop wearing Linux solely over the last few years and
 today I decided I'd install a Windows partition on it, with aim to
 dual boot. After preparing an NTFS partition by using the gparted live
 CD, I installed Windows 7 on the newly created partition. Thus, so far
 I have the primary partitions /dev/sda1, an ext3 partition holding my
 Squeeze installation, and /dev/sda2, holding my Windows installation.
 There's also the /dev/sda3 extended partition and the /dev/sda5
 swap partition. Here's a gparted screenshot taken from within my
 debian installation to prove my claims:
 http://img199.imageshack.us/img199/1819/mypartitions.jpg
 
 When the installation was finished, I would only boot into Windows 7.
 Somewhat accustomed to this loss of the Grub boot loader, I booted
 from my Squeeze installation CD, entered Rescue Mode and reinstalled
 GRUB in the MBR of my only hard drive (that corresponds to the
 /dev/sda1 partition). However, even though I reclaimed Grub, Grub
 would not detect my Windows partition on bootup, and give me the
 options of boot into debian. I tried reinstalling GRUB on other
 partitions, but Windows was (and still is) unbootable on startup.
 
 I had a look at my grub.cfg and didn't see a menuentry corresponding
 to the windows partition, even after running update-grub. What are the
 steps that I need to follow in order to dual boot my system? The only
 OS I have currently access to through Grub is Debian (with the option
 of two kernels, but that's not really relevant).
 
 Thanks.

Try 'update-grub' as root
Thierry


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Re: Simple dual boot - grub issue

2010-06-21 Thread Andrei Popescu
On Ma, 22 iun 10, 00:56:53, Jason Filippou wrote:
 
 I had a look at my grub.cfg and didn't see a menuentry corresponding
 to the windows partition, even after running update-grub. What are the
 steps that I need to follow in order to dual boot my system? The only
 OS I have currently access to through Grub is Debian (with the option
 of two kernels, but that's not really relevant).

Grub does not detect other OSes, the package os-prober does. Make sure 
it is installed and rerun update-grub.

If it still won't detect your Windows you can try also writing a custom 
entry in the file /etc/grub.d/40_custom, but I bet the os-prober 
maintainer would want to know about it.

Regards,
Andrei
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