Thanks M B and ST83 for lending your experience!
Thanks to alejandro_blue for opening the post. I read it posted in usarios
'tambien' where the KISS advice suggested in your second link was also given.
Based on multiple councils, I think I will go with something like this (with
what I have now, I do not notice much of a performance hit depending on where
on the drive an OS is)
8 GB / ........LVM
5 GB /usr .....LVM
5 GB /var .....LVM
5 GB /tmp .....Ext2
5 GB /opt .....Ext3
4 GB swap .....swap
re /tmp and Ext2 - From the Debian Manual
"Notice, however, that there are some partitions that might not benefit from
using a journaling file system. For example, if you are using a separate
partition for /tmp/ you might be better off using a standard ext2 file system
as it will be cleaned up when the system boots." That sounds like good
advice.
/opt and ext3
I have nothing in /opt now but I from the manual that that's a good place for
user compiled programs. I wouldn't expect to outgrow 5 GB and it will be
journaled.
Over all, I have 20 GB / LVM partition (currently 25% full after 2 weeks of
use) + 4 GB swap now with only a separate /home directory so this scheme
would be the equivalent to a generous 28 GB / + 4 GB swap with capacity to
grow if ever needed and a large /home directory to be used by more than 1
system and hopefully for many years.
Yeah, think I'm gonna do it, rip what I have apart and start all over again.
(although no rush, must plan other aspects still) My joke with my son about 6
weeks ago before I found Trisquel was 'I'm going to do the install to end all
installs.' So now I'm going to do the mother of all installs to end all
installs! ...v.1