We just installed Ubuntu 10.10 on a server with ext4 and LVM:
$ df -l
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda2 1875309692 656114888 1123931624 37% /
none 8227652 260 8227392 1% /dev
none 8234508 164 8234344 1% /dev/shm
none 8234508 88 8234420 1% /var/run
none 8234508 0 8234508 0% /var/lock
none 1875309692 656114888 1123931624 37% /var/lib/ureadahead/debugfs
$
This server actually has 4 2TB drives in it. I'd like to take drives sda and sdb and knit them together in an LVM mirror. Is there a way to do this without reinstalling? That is, how do I create the LVM (I thought we had done this) and add a second drive to the container?
