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Old 07-17-2003, 06:54 PM   #1
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Question linux-win98 dual boot

I set up my computer to dual boot with win98 and linux. I did all the things that are mentioned in the bulletins here. When I reboot and choose linix from the menu, it works fine, when i choose win98 I get an error msg:
chainloader +1
Invalid Systemdisk

I installed win98 first, and made sure it's working fine. I then installed Linux (Red Hat 7.3). I specified to have the boot loader in the MBR. I had a smooth install but when the system rebooted I was not able to go to win98 anymore.

can anyone help me.

I can be contacted at

Old 07-17-2003, 07:51 PM   #2
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That line [i]rootnoverify(hd1,0) suggests that you have your Windows disk as primary slave - do you have two harddrives? Also, there should not be a space between the hd and the 1 in that line.

If you can boot into Linux, then issue this command: fdisk -l (as root) and find the partition/drive that has Windows installed on it. Ues the following to identify the grub partitiion naming from the Linux partition naming scheme:
Linux - Grub
hda1  - hd0,0
hda2  - hd0,1
hda3  - hd0,2
hdb1  - hd1,0
hdb2  - hd1,1
hdb3  - hd1,2
Once you've found your Windows and discovered the Grub partition name for it, edit the file (as root) /etc/grub.conf and change the line to reflect your findings.

Good luck.
Old 07-17-2003, 08:06 PM   #3
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That path should be /boot/grub/grub.conf (or menu.lst)

To examine or post your partitioning scheme, as root command:

fdisk -l

My results:
root@uilleann ~ # fdisk -l

Disk /dev/hdc: 255 heads, 63 sectors, 9729 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hdc1             1      9729  78148161   83  Linux

Disk /dev/hda: 255 heads, 63 sectors, 4865 cylinders
Units = cylinders of 16065 * 512 bytes

   Device Boot    Start       End    Blocks   Id  System
/dev/hda1   *         1      1217   9772056    c  Win95 FAT32 (LBA)
/dev/hda2          1217      1229     99855   83  Linux
/dev/hda3          1230      1676   3590527+  83  Linux
/dev/hda4          1677      4865  25615642+   5  Extended
/dev/hda5          1677      1742    530113+  82  Linux swap
/dev/hda6          1743      2189   3590496   83  Linux
/dev/hda7          2190      2636   3590496   83  Linux
/dev/hda8          2637      3751   8956206   83  Linux
/dev/hda9          3752      4865   8948173+  83  Linux
Thu Jul 17 09:07pm root@uilleann ~ #
Here is my config for an example
# Duron 950 uillean box /boot/grub/grub.conf file
title Red Hat Linux 7.3
        root (hd0,1)
        kernel /vmlinuz-2.4.18-3 ro root=/dev/hda6 hdd=ide-scsi mem=nopentium
        initrd /initrd-2.4.18-3.img
title Mandrake Linux 9.0
        kernel (hd0,6)/boot/vmlinuz root=/dev/hda7 devfs=mount hdd=ide-scsi quiet vga=788 mem=nopentium
        initrd (hd0,6)/boot/initrd.img
title Gentoo Linux
        root (hd0,1)
        kernel (hd0,1)/boot/bzImage root=/dev/hda3 hdd=ide-scsi mem=nopentium
title Windows 98 Sucky Edition
        rootnoverify (hd0,0)
        chainloader +1
Old 07-18-2003, 10:10 AM   #4
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Thumbs up It worked

Thanks guys, you were right on the money!

After running the fdisk -l command I found out that I need to change the hd specification from hd1 to hd0. so i edited the grub.conf file and I changed -Rrootnoverify(hd1,0) to -Rrootnoverify(hd0,0)

when I rebooted and choose windows, it came up just fine.

Thanks for your great help.


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