On Fri, Nov 13, 2020 at 5:41 AM Sreyan Chakravarty <sreyan32@xxxxxxxxx> wrote: > 1) Why doesn't fallocate work anymore ? Fallocate is the preferred way to do this, e.g. fallocate -l 8G swapfile > 2) I tried dd if=/dev/zero of=/fedora.swap bs=1 count=0 seek=8G > > This did not work. swapon complained about files being full of holes. That's because that command creates a sparse file, which has holes in it. Same as using 'truncate'. > What is so special about bs=1M ? I think it's count=0 and seek= that causes it to become sparse. I don't think the bs size is relevant. > /fedora.swap none swap sw 0 0 I have no idea what 'sw' is in the fstab file is for; I don't see it in either man fstab or man swapon. I'd just make this line: /fedora.swap none defaults > > > I now have a new problem. > > SELinux is preventing systemd-logind to read the swap file. > > Here is the message: > > SELinux is preventing systemd-logind from read access on the file /fedora.swap. mkswap sets the label. So this is a secondary effect of what Sam Sieb already discovered from the lack of a blkid swap signature. You forgot to use mkswap on the file. -- Chris Murphy _______________________________________________ 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