Installation of a KDE4 iso on a very old machines:
1) Boot up iso to the point where it asks You for a keyboard type. Choose Your Keyboard and press
Next.
2) Wait for 5 - 10 seconds and press and hold
[ALT] + [CTRL] + [BACKSPACE] for a few seconds. This will crash X server and reload it but this time You should be met by
KDM. Click on the
SESSIONS button and pick
FAILSAFE. Now log in by clicking on guest account in the left pane and typing in
guest password which is guest btw

... Click
Login button.
3) Move Your mouse over the console window in the bottom left hand corner. Now You will be able to type in it. Type in
draklive-install and press [ENTER]
4) You will be asked to provide a root password. Please move your mouse over the pop-up window and type in
root. Then press
OK.
5) From this point - continue installation as You normally would.
6) When installation is finished please type in
reboot in the console window and press
[ENTER]. When asked - remove LiveCD and press
[ENTER]7) Create root's password and local user credentials. When in
KDM choose
FAILSAFE from sessions as before. Log in as user that You have just created. Here You can use
synaptic command to open package manager and
upgrade Your system / install task-lxde package. You can also use
pcc command to setup some system options. Command
systemsettings may also be useful.
Once You install other DE You may reboot and choose it from Sessions in KDM. You can log in to it this way. You can enjoy KDE4 iso with LXDE on top of it. Light and yet with all the KDE toys...Hope this helps somebody someday.
Regards.
Andy
P.S. Turning off the mysqld service will save You a good 50+ MB of memory. BTW. This method can be used with ISOs other then KDE4.