On Fri, 2020-11-06 at 20:27 +0800, Qiyu Yan wrote: > Patrick O'Callaghan <pocallaghan@xxxxxxxxx> 于2020年11月6日周五 下午8:14写道： > > > > On Fri, 2020-11-06 at 11:18 +0000, Patrick O'Callaghan wrote: > > > On Fri, 2020-11-06 at 05:43 +0000, Qiyu Yan wrote: > > > > You can use swapfile on btrfs with nocow > > > > [...] > > > > https://wiki.archlinux.org/index.php/btrfs#Swap_file for instructions > > > > > > Great. I was actually wondering about precisely that, so I'm glad to > > > see it's supported with the right incantations. > > > > Trying to follow the instructions in the above URL, but clearly I'm > > misunderstanding something: > > > > # btrfs sub create /SWAP > > Create subvolume '//SWAP' > > # btrfs property set /SWAP compression no > > # btrfs sub show /SWAP > > root/SWAP > > Name: SWAP > > UUID: 1d4d839a-fd4e-d345-8d3f-ea858af71982 > > Parent UUID: - > > Received UUID: - > > Creation time: 2020-11-06 11:41:37 +0000 > > Subvolume ID: 1311 > > Generation: 14657 > > Gen at creation: 14547 > > Parent ID: 257 > > Top level ID: 257 > > Flags: - > > Snapshot(s): > > # cd /SWAP > > # truncate -s 0 ./swapfile > > # chattr +C /SWAP > > chattr: Invalid argument while setting flags on /SWAP > Try setting +C flag on the file rather than the subvolume itself # chattr +C swapfile chattr: Invalid argument while setting flags on swapfile poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
