Hi,
I've just installed a slackware 10.1 into my pc. To boot my win2k, I also installed grub. Here is what the fdisk -l shows:

Device Boot Start End Blocks Id System
/dev/hda1 * 1 2550 20482843+ 7 HPFS/NTFS
/dev/hda2 2551 3649 8827717+ f W95 Ext'd (LBA)
/dev/hda5 2551 2552 16033+ 83 Linux
/dev/hda6 2553 2634 658633+ 82 Linux swap
/dev/hda7 2635 3649 8152956 83 Linux

Disk /dev/hdb: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/hdb2 2 9729 78140160 f W95 Ext'd (LBA)
/dev/hdb5 2 6927 55633063+ 7 HPFS/NTFS
/dev/hdb6 6928 7179 2024158+ b W95 FAT32
/dev/hdb7 7180 9729 20482843+ 7 HPFS/NTFS

My boot is mounted at /boot at /dev/hda5.

The problem is when I bootup using grub, the system complains something like:
***ERROR***: Root partition has already been mounted read-write. Cannot check!

followed by some advcies which I don't understand. Though I can bootup the system by ignoring the error. I guess there might be something wrong with my grub configuration. Here is my menu.lst:

#
# Boot menu configuration file for GRUB
#

# By default, boot the first entry
default 0

# Boot automatically after 30 secs
timeout 30

# Fallback to the second entry if the default entry doesn't work
fallback 1

# Booting Linux
title Linux/Slackware 10.1
kernel (hd0,4)/vmlinuz root=/dev/hda7

# Booting Windows 2000
title Windows 2000 Professional
root (hd0,0)
makeactive
chainloader +1



Sorry for the long message. Any help or advices would be appriecated.

Thanks

A little off topic, but you do know you can boot non-linux partitions with LILO, right?

As for how to fix it, I really don't know. I don't use grub, because I don't like it. Have you tried checking grub's documentation? http://www.gnu.org/software/grub/man...ode/index.html The problem is obviously that GRUB isn't mounting the root as read-only, but a quick check in the docs didn't make anything leap off the page for how to set it.

change the line

kernel (hd0,4)/vmlinuz root=/dev/hda7

to

kernel (hd0,4)/vmlinuz root=/dev/hda7 ro


the 'ro' mounts the partition as Read Only