Warner's Random Hacking Blog

FreeBSD Commit Graph I've updated an old graph from a talk I gave in 2010 to have data up through today. The rate of development seems...

Recently, I acquired a kryoflux  board to help read in the Venix floppies... I finally have it up and running. I've managed to read in...

After about 4 and a half hours of build time, I have results to share. There's 110 .c files in /usr/src/cmd. 85 of these compile and lin...

I just started rebuilding the v7 sources on my Venix Rainbow on a lark. I'll post a full writeup, but here's a two early things I...

I've taken some time to look at the Venix disks. I've managed to read them all after retrying the read errors enough. I've creat...

Rainbow 100 Windows 1.0 Disks OK. I never thought I'd find myself writing a blog about Microsoft Windows of all things. However, that...

Turns out I didn't need to look for exotic formats to solve this problem. I had physical copies of the disks with 10 sectors per track...

Close, but not quite So, it looks like I'm getting closer. I read the disks with the 'physical' read option, which did sector...

As you may recall from last time, I had 5 errors on two disks I'm trying to read for the Rainbow Venix Floppy project. The specific er...

Recently, there was a post on an obscure retro-computing blog. It said that someone had acquired a Rainbow 100, which isn't so unusual (...

Just a quick blog to document a trick. Boot the install image (or even just a boot-only image). Get a Shell. At the shell, type # env UN...

Tonight I assembled my cables I'll need to read my Rainbow 100B ST-251-1 hard drive I've had for a long time to get a backup. I re...

In preparation for a possible new project, I needed to build sdcc, a compiler that targets a bunch of 8-bit architectures. You can find info...

One of the cool new features in FreeBSD 11 is that we can use the system compiler as a cross compiler, eliminating the need to rebuild clang...

Here's a tip about FreeBSD pre-configured armv6 images. For a given SoC, they are all (almost) the same. There's two difference for ...

Recently, I needed to test u-boot before I flashed a new u-boot image into NAND. In the past, when I've googled it, I find a lot of scre...

Raspberry Pi 2 and FreeBSD 11 and bind 9.9 for a name server Just thought I'd outline the steps to bring a Raspberry Pi 2 up with Fre...

The Default Logo: Tux By default, Das U-boot uses a penguin logo when it first starts up. This default looks something like  this Whi...

Recently, there's been much talk in the news about CVE-2015-7547 affecting almost all Linux-based routers and many distributions. A qu...

Automatic Module Loading For a long time, I've wanted to add better, automatic module loading to FreeBSD. This past year, I started i...