On Wed, 23 Mar 2022 at 08:41, <bradb...@seanet.com> wrote: > 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 > > Why do you need to create a swapfile? Such details are normally handled by the installer in a way that works for the majority of users. Is your F35 a fresh install or upgrade?
> If I follow the swapfile instructions on > > https://docs.fedoraproject.org/en-US/Fedora/14/html/Storage_Administration_Guide/s2-swap-creating-file.html It is unwise to apply Fedora 14 documentation on Fedora 35 -- a lot has changed. Are you using the default brtfs filesystem? On my F35 system with btrfs (and 16GB RAM): % swapon -s Filename Type Size Used Priority /dev/zram0 partition 8388604 30208 100 Linux Performance: Almost Always Add Swap. Part 2: ZRAM (haydenjames.io) <https://haydenjames.io/linux-performance-almost-always-add-swap-part2-zram/> > 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 > -- George N. White III
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