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Re: Can't boot Win 7 on second HDD from Kubuntu Trusty GRUB

From: Jordan Uggla
Subject: Re: Can't boot Win 7 on second HDD from Kubuntu Trusty GRUB
Date: Tue, 27 Oct 2015 13:14:31 -0700

Please run Boot Info Script:
(also available in Ubuntu's repositories) and post the RESULTS.txt
that it produces.

On Mon, Oct 26, 2015 at 7:42 PM, Shriramana Sharma <address@hidden> wrote:
> Hello.
> I have a system with three hard drives: 320 GB SATA, 80 GB SATA and 80
> GB IDE, and in that order I have configured the BIOS boot order.
> I have freshly installed Kubuntu Trusty on the 320 GB SATA disk and
> Windows 7 on the 80 GB SATA disk, both on the first partitions of the
> respective drives. Kubuntu shows the BIOS drives as sdb, sdc and sda
> respectively, which is OK by me so long as Kubuntu works fine.
> Now GRUB has no problem booting to Kubuntu. If I set the Windows disk
> as the first disk in BIOS, then I have no problem booting Windows
> directly either. However, when booting from GRUB I am not able to use
> the Windows 7 GRUB entry created by GRUB's OS-prober, since it just
> reboots the system.
> As per the GRUB manual's advice regarding this issue
> (
> I have added the following simple entry in /etc/grub.d/40_custom (and
> disabled /etc/grub.d/30_os-prober to avoid two Windows 7 entries):
> menuentry 'Windows 7' {
>     insmod part_msdos
>     insmod ntfs
>     drivemap -s (hd0) (hd1)
>     chainloader (hd0)+1
> }
> but it says "invalid signature". If I go to the GRUB command line and
> do the drivemap -s, then even afterwards, ls (hd0,msdos1) shows the
> contents of the Kubuntu partition and not the Windows partition.
> Perhaps this is why chainloader doesn't work? Then I tried chainloader
> (hd1)+1 from the commandline, but this still reboots.
> Please help.
> --
> Shriramana Sharma ஶ்ரீரமணஶர்மா श्रीरमणशर्मा
> _______________________________________________
> Help-grub mailing list
> address@hidden

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