Cheatcheat to enable TRIM (discard) in a SSD with ext4, lvm and luks encrypted devices. Ext4 In /etc/fstab add discard as option of the ext4 filesystem. If you are using LVM: In /etc/lvm/lvm.conf change issue_discards from 0 to 1. For Luks crypto: Append option discard in /etc/crypttab. Line should end like luks,discard. . Append rd.luks.options=discard…