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…

N: Skipping acquire of configured file ‘contrib/binary-i386/Packages’ as repository ‘https://download.virtualbox.org/virtualbox/debian bionic InRelease’ doesn’t support architecture ‘i386’

N: Skipping acquire of configured file ‘contrib/binary-i386/Packages’ as repository ‘https://download.virtualbox.org/virtualbox/debian bionic InRelease’ doesn’t support architecture ‘i386’ There’s no 32bit support now so update the source list file to get rid of the warning. In my case, /etc/apt/sources.list.d/virtualbox.list Change deb https://download.virtualbox.org/virtualbox/debian bionic contrib to deb [arch=amd64] https://download.virtualbox.org/virtualbox/debian bionic contrib