migrate between amd & intel in proxmox
I recently acquired an Intel based server and plugged it into my AMD-based Proxmox cluster. I ran into an issue transferring from AMD to Intel boxes (the other direction worked fine.) After a few...
View Articleproxmox bond not present fix
I really banged my head on the wall on this one. I recently decided to re-architect my networking setup in proxmox to utilize bonded network configuration. I followed this writeup exactly. The problem...
View Articlechroot into encrypted drive
I foolishly went browsing in my EFI partition on my Ubuntu (Elementary OS) laptop and decided to delete the Ubuntu folder. This made my laptop unbootable. This was my procedure to bring it back to...
View Articleproxmox openvswitch bond
Recently I had to switch my Proxmox server which was using Linux bonds to using openvswitch. These are my notes: Install openvswitch: apt install openvswitch-switch Configure openvswitch to bond...
View ArticleWD*EZRZ NAS array spindown fix
I recently acquired some 5TB Western Digital Blue drives (WD50EZRZ.) These particular drives were shucked from external USB enclosures. When I tried to add them into my ZFS raid array, though, I ran...
View ArticleJQ select specific value from array
I had some AWS ec2 JSON output that I needed to parse. I wanted to grab a specific value from an array and it proved to be tricky for a JSON noob like me. I finally found this site which was very...
View ArticlePodman no internet in container fix
I’ve started experimenting with CentOS 8 & Podman (a fork of Docker.) I ran into an issue where one of my containers needed internet access, but could not connect. After some digging I found this...
View Articlegit checkout only specific directory from repo
I have a git repo where I just wanted a specific folder, not the entire repo, cloned to one of my virtual machines. Git doesn’t handle this straightforwardly, but thanks to this article I found there...
View Articlecreate podman services with podman-compose
Podman is a fork of Docker that Redhat is using. I really liked docker-compose functionality; fortunately there is a podman-compose project which is more or less the same thing. I now have a setup...
View ArticleRobocopy mirror directory
I do this rarely enough I never remember the syntax to use robocopy like rsync -aP: robocopy.exe “Source directory in quotes” “Destination directory in quotes” /MIR #NO trailing slashes Robocopy.exe...
View ArticleSort by middle of a string
I had a list of items I wanted to sort in a non-standard way: It’s a generalized list for publication but you get the idea. I wanted to sort by site name. Thanks to this post I found it’s relatively...
View ArticleFolding@home opencl error fix
I decided to contribute my GPU on my Ubuntu-based system to the Folding@Home effort for COVID-19. I kept getting this error message for my NVIDIA GeForce GTX 1050 TI when I tried: I had the nvidia...
View ArticleUBUNTU 20.04 cloned VM same DHCP IP fix
I cloned an Ubuntu 20.04 VM and was frustrated to see both boxes kept getting the same DHCP IP address despite having different network MAC addresses. I finally found on this helpful post which states...
View ArticleThreadripper / Epyc processor core optimization
I had a pet project (folding@home) where I wanted to maximize computing power. I became frustrated with default CPU scheduling of my folding@home threads. Ideal performance would keep similar threads...
View ArticleZimbra expired ldap certificate fix
I started getting SSL errors with my Zimbra mail server despite having a valid SSL certificate everywhere I knew where to check. When I tried to use zmcontrol status I got this error: Unable to start...
View Articlearch install notes 2020-06
My install notes to get Arch Linux set up just the way I like it, June 2020 edition. Reference: https://wiki.archlinux.org/index.php/Installation_guide Change to dvorak layout:loadkeys dvorak Sync NTP...
View ArticleKVM with vga passthrough in arch linux
I’ve once again switched from Proxmox to Arch Linux for my desktop machine. Both use KVM so it’s really just a matter of using the different VM manager syntax (virt-manager vs qm.) I used my notes from...
View Articlewindows 10 KERNEL_SECURITY_CHECK_FAILED in qemu vm
I upgraded to a shiny new AMD Ryzen 3rd gen processer (Threadripper 3960x.) After doing so I could not boot up my Windows 10 gaming VM (it uses VFIO / PCI Passthrough for the video card.) The message I...
View ArticleDIY IP KVM
In general I try to buy server-class hardware for my home lab, primarily so that I could have IPMI / Remote access console for remote OS installation & troubleshooting. I recently got a new desktop...
View ArticleMove git subdirectory into new repo
I had a need to take a folder in one git repository and create a whole new git repository with it, preserving history for all files inside. My desire to keep git history made the process a bit more...
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