Das Werkstatt

For some reason (*) my /lib was suddenly empty. Very nasty. Long story short, here's how I fixed it: * boot a live distro (of similar OS version/flavor) * In my case: Xubuntu 20.04.6 (live) over 20.04.5 (=compatible, but slight library/version deviation) * Mount the broken OS system disk. * rsync -a...

The following parameter selects a maximum resolution of 720 pixels (height), avc1 (=h.264) as video codec and mp4 as container format:

Here's an error that MPV throws when trying to open a file from a network (Samba on Linux) share: Using netbios name HOSTNAME1 Using workgroup DVA-PROFESSION. gensec_spnego_client_negTokenTarg_step: SPNEGO(ntlmssp) login failed: NT_STATUS_WRONG_CREDENTIAL_HANDLE [smb] Could not open from LAN: smb://...

[PROBLEM] I have a known-to-be-working smb.conf which shares a local folder with write-access for certain logins, and read-only access for guests/anonymous. Authenticated login (using a smbpasswd-mapped account) works. The config is known to be stable and working on many hosts (in my setups), but o...

On Debian 10, I had "noatime" as argument in the fstab.
Removing it fixed the problem.

However, on Debian 12, "noatime" in the arguments in fstab for mounting cifs/smb share worked.

[PROBLEM] After adding new kernel parameters for full IOMMU separation of hardware devices (See Proxmox PVE: passthrough of non-GPU + split IOMMUs ). Seems like loading the kernel module (?) for `pcie_acs_override` support, triggers to load the mokmanager.efi boot image: proxmox_pve-mokmanager_boot...

I'm passing through a Blackmagic Decklink SDI video capture card to a virtual machine on Proxmox PVE. The mainboard is an MSI Mortar B450M Max. Using any of the available 2 PCIe slots always put my Decklink card into a shared IOMMU group - that also contained many other onboard devices, such as netw...

PROBLEM =============== I was basically forced to buy a yubico key (2 actually: 1 backup) although I didn't want to: The model is a 30 EUR Yubico "Security Key C NFC" . Now Github 2 factor authentication was pissing me off for quite a while now, because I very often DO NOT have my phone w...

[PROBLEM] Trying to mount an smb/cifs share using a proper, working /etc/fstab entry: mount: /mnt/inbox/bd1-inbox: mount(2) system call failed: No route to host. The same config works perfectly on another machine - and the IP route to host (including name-resolution) works perfectly. [SOLUTION] $ a...

I've had several reasons for the following error: git@github.com: Permission denied (publickey). fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. 1. SSH config (~/.ssh/config) had no public key set. 2. Remote-URL wasn't poin...

[PROBLEM] Trying to "git push" to a repository of mine on github.com: ERROR: Permission to USER1/repository.git denied to USER2. fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists. Seems there's a mixup between which...

Here's my working command that "sees" all buttons pressed on remotes of 2 different devices: $ sudo ir-keytable -t -v -p rc-5,rc-6,nec * Philips VCR (VR 740) * Universum VCR (VR-2796) Here's an overview of "hello to the irtoy device": $ sudo ir-keytable Found /sys/class/rc/rc0/ w...

Updating my existing IR setup - yet again (for the n-th time in 20 years...) irToy hardware IR sender/receiver on Xubuntu 20.04.6, using lirc 0.10.1. It works! 8) :D Well, at first I got an error, when I tried this: $ irsend SEND_ONCE UniversumVCR power hardware does not support sending [SOLUTION] E...

Running "apt install lirc" on Xubuntu 20.04.6, fails to install lirc package - and leaves apt in an unclean state: Setting up lirc (0.10.1-6.1) ... Job for lircd.service failed because a fatal signal was delivered causing the control process to dump core. See "systemctl status lircd.s...

Again, splitting the very same images, I ran into the following error: $ convert video_motion.png -crop 30000 out-%02d.png convert-im6.q16: no images defined `out-%02d.png' @ error/convert.c/ConvertImageCommand/3258. I seem to have forgotten to write down the following change, too: In `/etc/ImageMag...