ke, 2022-03-23 kello 11:40 +0000, bradb...@seanet.com kirjoitti: > I am trying to create a swapfile on my fedora 35 system and do not > know what I am doing wrong: > trash>uname -a > Linux fedora 5.16.15-201.fc35.x86_64 #1 SMP PREEMPT Thu Mar 17 > 05:45:13 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux > > If I follow the swapfile instructions on > https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/s2-swap-creating-file.html > I get the following result: > > step 1: > trash>sudo dd if=/dev/zero of=/swapfile bs=1024 count=65536 > 65536+0 records in > 65536+0 records out > 67108864 bytes (67 MB, 64 MiB) copied, 0.147119 s, 456 MB/s > > step 2: > trash>sudo mkswap /swapfile > mkswap: /swapfile: insecure permissions 0644, fix with: chmod 0600 > /swapfile > Setting up swapspace version 1, size = 64 MiB (67104768 bytes) > no label, UUID=f1402a6a-c64c-4f84-9d47-4f8822d2f1d2 > > step 3: > sudo chmod 0600 /swapfile > > step 4: > trash>sudo swapon /swapfile > swapon: /swapfile: swapon failed: Invalid argument >
One reason this could happen is if you're trying to create the swapfile on a btrfs filesystem. In that case you'll need to disable copy-on- write on that file first: 1. truncate -s 0 /swapfile 2. chattr +C /swapfile 3. dd if=/dev/zero of=/swapfile bs=1024 count=65536 4. chmod 600 /swapfile 5. mkswap /swapfile 6. swapon /swapfile However, all of this this may not be necessary, since recent releases of Fedora have zram swap enabled by default anyway. -- Terveisin / Regards, Matti Pulkkinen _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org 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@lists.fedoraproject.org Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
