When I reinstalled Ubuntu 12.10 64-bit on my SSD, I chose the option to use LVM in Ubiquity. I am trying to find out how to enable TRIM for my SSD. I came across this article:
The article states in addition to adding discard and noatime to /etc/fstab , discard must be added to the drive (sdX_crypt) in /etc/crypttab. My problem is the only listings in my /etc/crypttab are several cryptswap; it does not list any sdX_crypt.
I currently have a /dev/sda1 (ext2), which is the boot point, and /dev/mapper/ubuntu-root, which is my ext4 partition.
Any ideas as to how to enable TRIM?