Re: lvm and multiboot
>>> I read something that it is not good for /boot and / to reside on lvm
>> Only /boot needs to be on a non-LVM volume. I always partition my root
>> drives with a 100-200MB /boot partition and the rest as a single
>> partition devoted to LVM. Actually, I also do that for
>> secondary&external drives, where the small "boot" partition is simply
>> left unused (but can come in handy if I ever need to switch drives
> why is the boot partition left unused, it is supposed to contain kernel
> images, right?
Not in secondary and external drives, from which I do not boot.
> Besides, if you use the rest as a single partition, is
> that possible to create separate partitions for /var /usr etc?
Yes, of course: the partition dedicated to LVM is then carved into
a bunch of "logical volumes". In my case I usually have one for swap,
one for / and one for /home.