2012/5/24 Michal Schmidt <mschmidt@xxxxxxxxxx>: > On 05/24/2012 03:20 PM, Gerry Reno wrote: >> >> So is F17 going to support TRIM w/LUKS automatically? >> >> Or do we need to perform some special configuration to get TRIM >> w/LUKS? (Yes, I understand some attacker might be able to guess my >> filesystem type due to erased blocks - seems very low risk though). > > > To use this feature, you can specify the option "allow-discards" in > /etc/crypttab. You need systemd >= 44-11, currently in updates-testing. > > Michal > I have updated to systemd-44-12 to test this functionality, but I don't know if I'm doing it right. I have read that LVM has added support for passing discards to the layer below. Currently I have: Partition -> Luks -> LVM -> ext4 ext4 is mounted with discard. I haven't done anything to LVM, and in /etc/crypttab I have added "allow-discards" as the fourth column. I suspect it isn't working because "cryptsetup status /dev/mapper/luks-uuid" does not say anything about discards. I think it must say "flags: discards" Any suggestion? -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
