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devopslimeyninja.bsky.social
Technology nerd, DevOps and Platform Engineering ninja, maker of things, aerospace and science fiction fan. Los Alamos National Laboratory. Opinions my own.
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So, now that v9 is out, you're going to want to learn how to use all the awesome new features, right? Have we got a place for you! kicon.kicad.org KiCon Returns to North America, May 28-30th, San Diego, CA. Pre-sale discount tickets are available now!

submitted 8 days ago • 2 comments

While everyone’s focused on Trump, Microsoft created a new state of matter. It's going to change everything. Here's what you need to know about Microsoft's Majorana 1 Quantum Chip:🧵

submitted 8 days ago • 12 comments

from “Parable of the Talents” by Octavia Butler

submitted 12 days ago • 386 comments

The BBC Micro was a multi-core computer. They just didn't tell anyone! A test mode accidentally triggered in 2020 revealed the existance of this second core, with its own instruction set and ROM, the ability to bypass the firmware, and may have revealed some 50-year-old corporate espionage...

submitted 23 days ago • 1 comment

You know Sheryl Sandberg’s famous line: “If you’re offered a seat on a rocket ship, don’t ask which seat, just get on”? Do you know who originally said that? It was CHRISTA MCAULIFFE. Who died in the Challenger explosion. In case you’re wondering whether to trust rhetoric that comes out of Meta.

submitted 46 days ago • 1 comment

I'm troubleshooting my Apple Lisa, and needed to defeat the safety switch so I can operate without the back panel in place. It's here, just in case you need something similar. www.thingiverse.com/thing:6926140

submitted 34 days ago • 0 comments

The Apple Lisa I'm restoring didn't come with any front feet. I just created these to stop the wobble. www.thingiverse.com/thing:6926128

submitted 34 days ago • 2 comments

Does the sun3 boot yet? Still no. I'd forgotten to copy vmunix over to the root directory to be mounted. Still now a bit closer, but the boot hangs. Wireshark says that there are more bootparams calls, but this time the destination broadcast address is 192.168.1.0.

submitted 36 days ago • 1 comment

So now the workstation calls out, gets its IP address, collects and runs a boot program... and then fails because I forgot about configuring NFS.

submitted 36 days ago • 1 comment

Bootparams is the thing that caused me a ton of grief, and I spent days trying to figure it out. It's why I'm writing this series. Packets from the workstation will arrive at the server just file, but they will never reach rpc.bootparamd. It was super frustrating. The fix, it turned out, was easy.

submitted 41 days ago • 1 comment

TFTP is a little bit more intricate. The default location for the tftp root directory on modern distros has changed. Because I'm running in a lab, I decided to change it to /tftpboot. You'll need to make a configuration change like this if that's your jam.

submitted 41 days ago • 2 comments

RARPD is straight-forward: create an /etc/ethers file with info on the workstation, and make sure there's a corresponding entry in /etc/hosts. While you're in /etc/hosts, make sure that there's an entry for the static configuration for eth0.

submitted 41 days ago • 1 comment

OK, so now with the process in hand, here are notes on booting a diskless #sunmicrosystems 3/50 from a raspberry pi running Debian Bookworm. There were a few hiccups along the way.

submitted 42 days ago • 1 comment

The challenge usually with vintage computer restoration is in getting the machine to the point where it's running, or maybe just looking as beautiful as the day it was made. Because technology moves on, diskless booting a #sunmicrosystems 3/50 in 2025 is different.

submitted 45 days ago • 1 comment