How to delete files in another partition

[Colin Law]

On 22 November 2010 16:44, Albert Wagner <albertwagner at cox.net> wrote:
> How can I make changes to another partition with another instance of
> Ubuntu 10.04?  I made changes to a file in /usr/lib/X11/xorg.conf.d on
> installation "A" that caused a fatal error in X during boot.  I
> installed another instance of Ubuntu in partition "B".  I can mount and
> view files on "A" from "B", but I cannot figure out how to modify/delete
> files on "A" from "B".

I presume you are viewing the files in Nautilus.  You will see the
mount point in the Location area.  It will be
/media/a_long_hex_string.  In a terminal you can then do things like
gksu gedit /media/...../usr/lib/...
or
sudo rm /media/.../usr/lib/...

Colin