On 3/13/24 16:05, Ron Flory via users wrote:
does not happen on FC38, or any prior RedHat/Fedora version since forever.
dmesg dmesg: read kernel buffer failed: Operation not permitted
Userspace scripts (such as used to read pics from cameras & sdcards) and many progs often use dmesg to detect or identify things like startup probe info, USB devs, partition numbers etc.
I worked around this by setting the suid bit of `which dmesg`, but it would be rude to force everybody to manually do this as part of post-install cleanup.
Hopefully an unintended side-effect and not a new "feature" that wasn't thought through completely. A web-search suggests debian/ubuntu may have been doing this for awhile- but we really don't need to be just like them... ;)
This was intentional and there was a thread about this recently, probably on devel or test. It's considered to be a big security issue.
If you're in the wheel group, you can use "journalctl -k".