I am currently installing a dual boot, XP/BT3. Everything was going well. This is what I have done.

Installed XP - sda1
Created Linux partition (10GB) - sda2
Created Linux Swap (1GB) -sda3
Booted into BT3.
Installed BT3 to sda2.
Edited the Lilo file to:
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# Windows bootable partition config begins
other = /dev/sda1
label = Windows
table = /dev/sda
# Windows bootable partition config ends
# Linux bootable partition config begins
image = /boot/vmlinuz
root = current
label = Back|Track
read-write
# Linux bootable partition config ends
---------------------------------------------------

When I try to run #lilo afterwards I get this error:
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Fatal: creat /boot/map~: Read-only file system
---------------------------------------------------

I am guessing I have to do something to allow me to write the mbr file to the HD. But not sure what. Any help will be appreciated. I have read through just about every dual boot tutorial or question that I could find. Plus have been on google for what seems like hours. Figured i'd break down and post. I am sure it's probably something easy.