Hi,
Since I originally installed Arch by following Jay’s guide at [1], I wanted to point out this problem I came across by upgrading to kernel 5.7, coming from 5.6.
Jun 12 10:03:22 osprey systemd[1]: Activating swap /swapfile...
Jun 12 10:03:22 osprey kernel: swapon: swapfile has holes
Jun 12 10:03:22 osprey systemd[1]: swapfile.swap: Swap process exited, code=exited, status=255/EXCEPTION
Jun 12 10:03:22 osprey systemd[1]: swapfile.swap: Failed with result 'exit-code'.
Jun 12 10:03:22 osprey systemd[1]: Failed to activate swap /swapfile.
Until the bug in [2] gets patched, looks like dd is a better way of creating a swapfile than fallocate.
I solved this problem by following the advice in [3]. Some more info in [4].
Additionally, I would like to ask whether there is any difference in putting defaults in the mount options in fstab, as opposed to sw as suggested in Jay’s guide. I suppose different fs types, like swap, have different defaults than rw,suid,dev,exec,auto,nouser,async for other usual mount points.
Thanks,
R
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[1] https://wiki.learnlinux.tv/index.php/How_to_Install_Arch_Linux#Create_swap_file
[2] https://bugs.archlinux.org/task/66921
[3] https://wiki.archlinux.org/index.php/Swap#Manually
[4] https://manpages.courier-mta.org/htmlman8/swapon.8.html#swapon-8_sect3