Is it the case that the current Linux distro you are using uses sudo to carry out administrative tasks?
PCLOS uses the two seperate users - a "root" user to do the admin stuff - and a normal "user" for day to day activities. Thus you need two passwords - one for "root" to carry out those tasks which involve system admin etc and a normal user password to login to your desktop as normal. For security, it is best to use two seperate passwords - it protects your system from intrusion (i.e someone needs to guess two passwords rather than one as with the sudo method) and, if you have to enter a different password to carry out an admin task, it hopefully makes you think before carrying out the action. Remember that things done as the "root" user will simply happen - and you have the ability as root to make changes to any part of the installed system!
You mention that you have no idea what Grub is? Someone has already covered that, but when you boot your PC, you say you can select between distros? Presumably that is a menu type screen with the different distros listed? If so, then that is part of what the bootloader (e.g grub or one of the others) does.
The reason someone asked about Grub or Grub2 is simply because the two are not totally compatible.
OK thanks everyone.
I have managed to install PCLinuxOS KDE in ext4 partitions on sdb:
/SWAP = 4GB
/ = 142GB
/home = 152GB
Bootloader = grub with graphics.
As regards the password. I appreciate you'd need differenct passwords where there are other users, but using the same password to login and for root seems to work.
Again thanks for your input.
