[HowTo] Install and configure Oleg's firmware

[r3ap3rpl]

Hi,
I already installed Oleg, before I was using OpenWRT on my Asus wl500gp.
All works fine for me,but I have problem with permissions to /opt dir.

[root@WL-001BFC918B60 root]$ mkdir -p /opt/tmp
mkdir: Cannot create directory `/opt/tmp': Read-only file system

the same or similar when I trying:

• mkdir -p /opt/tmp
• ipkg.sh install ipkg-opt
• mkdir /opt/tmp

I searched the web with google and I can't find any solution when I'm not using an external usb-hdd. I want to install ipkg, mc, nano, iptraf and maybe 4 apps more - I don't need usb-hdd.... I think

[root@WL-001BFC918B60 root]$ mount
/dev/root on / type squashfs (ro)
none on /dev type devfs (rw)
proc on /proc type proc (rw)
ramfs on /tmp type ramfs (rw)
usbfs on /proc/bus/usb type usbfs (rw)

[root@WL-001BFC918B60 root]$ df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 2.9M 2.9M 0 100% /

thanks for your time

ps
sorry for my gramma (if there are some mistakes ), english isn't my native language, but I'm trying
when I'm looking for same solution