Re: Error while running setsebool

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Have you tried this?

# touch /.autorelabel && reboot

I've had to run this command every time a Fedora upgrade touches the kernel or SELinux policy, and it's neither automatic nor documented as a necessary step.

Right now I am using CentOS 7 on OpenVZ in the cloud, otherwise very similar to Fedora, but sadly SELinux is disabled on most if not all VM hosting services, and the KVM (keyboard-video-mouse) virtualization offered by some providers, which would potentially allow a customer to install and use any Linux distribution with SELinux enabled, is rife with virtualization-related Intel/AMD/x86 hardware and microcode bugs.

On February 3, 2022 4:35:07 AM AKST, Geert Janssens <geert@xxxxxxxxxxxx> wrote:
Hi,

I have a minimal Fedora 35 box that's configured as a mail server. It started
life as a Fedora 33 system and got upgraded to 35 yesterday in an attempt to
fix the following error I was getting.

I am trying to set an selinux boolean using the following command:

setsebool -P rsync_client 1

This returns the following output:
libsepol.context_from_record: type avahi_conf_t is not defined
libsepol.context_from_record: could not create context structure
libsepol.context_from_string: could not create context structure
libsepol.sepol_context_to_sid: could not convert
system_u:object_r:avahi_conf_t:s0 to sid
invalid context system_u:object_r:avahi_conf_t:s0
Failed to commit changes to booleans: Success

Aside from the last line being very confusing the boolean seems to be set but
the setting won't persist across reboots. I suspect the error lines hint at
the problem but a search on the net didn't reveal what's going on.

As mentioned this was already happening while the system was still Fedora 33
(though the undefined type then was something with dns). I hoped it would get
fixed with an upgrade to Fedora 35, but it only changed the type that's
undefined.

What's going on here and how can I solve this ?
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