Adding thunderbolt devices in Fedora server 30

I recently purchased a thunderbolt 3 to 10GbE adapter ( QNA-T310G1S ) for my homelab NUC ( NUC7i5BNH ) running Fedora server 30. The network interface was not showing up when I connected the adapter. Some googling later and I figured out what I was not doing. Thunderbolt devices need to be authorized and added…

Extract .xz file

I generally just use the tar utility to extract files from a .xz archive. >_ file tsetup.1.7.7.tar.xz tsetup.1.7.7.tar.xz: XZ compressed data >_ tar -tvf tsetup.1.7.7.tar.xz drwxrwxr-x preston/preston 0 2019-06-10 05:25 Telegram/ -rwxrwxr-x preston/preston 97436648 2019-06-10 05:24 Telegram/Telegram -rwxrwxr-x preston/preston 1400643 2019-06-10 04:52 Telegram/Updater >_ tar -xvf tsetup.1.7.7.tar.xz Telegram/ Telegram/Telegram Telegram/Updater >_ ls -l Telegram/ total…

cannot perform readlinkat() on the mount namespace file descriptor of the init process: Permission denied

Installed kernel 4.18 on my Ubuntu recently, since then snap packages broke with the following error. It has something to do with the AppArmor¬†exception rule for ptrace¬†for what I could gather. [email protected]:$ spotify cannot perform readlinkat() on the mount namespace file descriptor of the init process: Permission denied The workaround for now is to upgrade…