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Re: Please help with following situation

From: Steve Cohen
Subject: Re: Please help with following situation
Date: Sat, 20 Nov 2010 14:59:32 -0600
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20101027 Thunderbird/3.0.10

Thanks but this did not work:

> menuentry "MS-DOS" {
> insmod fat
> set root=(hd0,3)
> drivemap -s (hd0) (hd0,3)
> chainloader +1
> }

ls (hd0,3) produced this output:
Partition hd0,3: Filesystem type fat UUID 466d-1902

Are there any more things I can try?

On Saturday 20,November,2010 11:01 PM, Goh Lip wrote:

    insmod ntfs

    ps: asuume ntfs

insmod fat # If fat16 or fat32 formatted partition.
insmod ntfs # If NTFS formatted partition.
insmod nftscomp # If NTFS compression is used on the partition. Load if you 
aren't sure.

Regards - Goh Lip

On Saturday 20,November,2010 05:01 AM, Steve Cohen wrote:

    I am trying to develop an installer package for a specialized
    application that runs on MS-DOS (Actually Windows 95 without the GUI).

    To this end, I am using a machine that has been preloaded with Ubuntu
    Linux 10.04 (uses grub 2). This machine has both a floppy and a CDROM.

    When booted with a special MS-DOS floppy and a special CDROM in the
    drive, it copies the system from the floppy drive (A:) to drive (C:).

    "Drive C:" is a partition of the only hard drive on the system -
    /dev/sda3 in linux terms. This partition was carved out by GParted
    and formatted using DOS Format command from the system booted from the
    floppy in drive A:

    The test of all this, is that when the floppy is not present in the
    drive and the system is booted, MSDOS should boot from "Drive C:"

    Of course, since this is a dual boot system, this must be reflected in
    GRUB. I have created the following file: /etc/grub.d//11_msdos. Its
    contents are as follows:

    #!/bin/sh -e
    echo "Adding MS-DOS"
    cat << EOF
    menuentry "MS-DOS" {
    set root=(hd0,3)
    chainloader +1

    I run update-grub and this gets written into /boot/grub/grub.cfg.

    When I reboot the machine (floppy drive not loaded, of course) the grub
    menu appears. But when I select MS-DOS, I see the
    "Invalid System Disk" error and the system won't load.

    Can someone help me understand why not?

Steve, that's a real unusual situation (for me) so not too sure if this would 
work but no harm trying, right?

Try modifying the above from

menuentry "MS-DOS" {
set root=(hd0,3)
chainloader +1


menuentry "MS-DOS" {
insmod ntfs
set root=(hd0,3)
drivemap -s (hd0) (hd0,3)
chainloader +1

If doesn't work, go to grub prompt (press 'c' at grub menu),
and type ls (hd0,3) to confirm correct partition being addressed.
If not, press "ls" to see what the correct (hdx,y) should be.

Good luck _ Goh Lip
ps: asuume ntfs

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