On Fri, Nov 13, 2020 at 4:00 PM Ed Greshko <ed.gres...@greshko.com> wrote:
> > Looking at https://bbs.archlinux.org/viewtopic.php?id=256614 and the > URL's contained within > > it seems doing a > > > > dd if=/dev/zero of=/fedora.swap bs=1M count=2048 status=progress > > > > may cure the w(hole) issue. :-) > > > > Sorry, the count above was for a 2GB swap file. Increase it to cover your > 8GB file. > > dd if=/dev/zero of=/fedora.swap bs=1M count=8192 status=progress This command has partially solved my problem But I have a couple of questions, 1) Why doesn't fallocate work anymore ? 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. What is so special about bs=1M ? 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. ***** Plugin restorecon (99.5 confidence) suggests ************************ If you want to fix the label. /fedora.swap default label should be etc_runtime_t. Then you can run restorecon. The access attempt may have been stopped due to insufficient permissions to access a parent directory in which case try to change the following command accordingly. Do # /sbin/restorecon -v /fedora.swap ***** Plugin catchall (1.49 confidence) suggests ************************** If you believe that systemd-logind should be allowed read access on the fedora.swap file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'systemd-logind' --raw | audit2allow -M my-systemdlogind # semodule -X 300 -i my-systemdlogind.pp Additional Information: Source Context system_u:system_r:systemd_logind_t:s0 Target Context unconfined_u:object_r:swapfile_t:s0 Target Objects /fedora.swap [ file ] Source systemd-logind Source Path systemd-logind Port <Unknown> Host localhost.HPNotebook Source RPM Packages Target RPM Packages SELinux Policy RPM selinux-policy-targeted-3.14.5-44.fc32.noarch Local Policy RPM selinux-policy-targeted-3.14.5-44.fc32.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name localhost.HPNotebook Platform Linux localhost.HPNotebook 5.8.18-200.fc32.x86_64 #1 SMP Mon Nov 2 19:49:11 UTC 2020 x86_64 x86_64 Alert Count 3 First Seen 2020-11-13 17:59:22 IST Last Seen 2020-11-13 17:59:22 IST Local ID 375aec7e-f77d-47ab-865a-f83a47c12423 Raw Audit Messages type=AVC msg=audit(1605270562.371:320): avc: denied { read } for pid=1256 comm="systemd-logind" name="fedora.swap" dev="dm-2" ino=13 scontext=system_u:system_r:systemd_logind_t:s0 tcontext=unconfined_u:object_r:swapfile_t:s0 tclass=file permissive=0 Hash: systemd-logind,systemd_logind_t,swapfile_t,file,read I don't know much about SELinux, can you help me fix the label ? How can I fix the label as described here? If you want to fix the label. /fedora.swap default label should be etc_runtime_t. -- Regards, Sreyan Chakravarty
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