Hi OErjan.

thanks a lot for your help. I've try to remount my root partition with the command you suggested but I've got this:

[root@ir2ip /]# mount -t ext3 -o remount,ro /dev/hda2 /
mount: / is busy

looking at the docs, it seems that you can have an EBUSY error if there is a file oper for write... so, how can one close all opened file ?

Also, I was no able to boot my HD knoppix distro as RO... maybe I miss something, but really I don't understand if the knoppix HD installation script build an HD RW distro or an HD RO distro.

users dirs are not problems at this time, as I can redirect them (or part of them) to a RW partition.

thanks again,

Giampaolo