Actually install HA on Pi 5
can't use linuxserver's homeassistant image as this is HA Core, no addons. Ditto for HA own Docker instructions, and "supervised" is a Bash script of doom that doesn't work and doesn't say why not, when a simple Docker compose file would do
Guess we're learning lxc. But https://www.home-assistant.io/installation/linux#download-the-appropriate-image is wrong, you want haos_generic-aarch64-13.2.qcow2 in /var/lib/libvirt/images
Connecting an Amstrad PPC 640 to Linux over serial
It's fairly easy to get the PPC talking to a modern computer. This lets you do cool tricks like Toot from it by using things like https://github.com/ihabunek/toot on the host
Mounting disk images read/write in KDE
All the advice on articles like https://unix.stackexchange.com/questions/47080/mounting-iso-in-linux-kde don't work in modern KDE, or are about mounting .iso files, which is now built in, or a disk image as read only.
I needed to mount disk images read/write, which appears to be more complicated because it needs to run as root, so prompt for the password, fingerprint or what have you.
Using a Gotek USB floppy drive with an Amstrad PPC
Recently I got around to playing with an Amstrad PPC I'd had for a while but not tried to get running. I even had the thin version of the manual, ruck sack, power supply and half the system disks.
The good news is - it's easy ! I'm not even a hardware guy :)
Newton on Windows on Linux
If you want to know the gory details, please read https://rachaelandtom.info/content/newton-linux
You will need
Newton with Linux
Step one: Get a serial to USB cable
- http://applenewton.co.uk/shop/ - http://applenewton.co.uk/2019/04/30/best-usb-to-rs232-cable-for-ncx-and-newtons/
You could build your own, like back in the day, or cobble bits together from Amazon or EBay, but this just takes the risk out.
Step two: Backup
NCU in VirtualBox
The end of btrfs
Well that's the end of btrfs for me; barely a month in it's shat itself and taken my /home with it.
I've lived this long without metadata checksum and snapshot...
I was able to extract a list of trees, even though it wouldn't mount, even with the various recovery options, using
btrfs-find-root /dev/mapper/vgkubuntu-home
This will split out a bunch 'well' things. I got lucky and when I passed the number of one of those to
Things to change on a default Linux install
O/S
/tmp as tmpfs - https://wiki.archlinux.org/title/tmpfs
logs that don't go on forever - https://github.com/azlux/log2ram
systemd logs that don't go on forever /etc/systemd/journald.conf:
SystemMaxUse=50M
Faster, more responsive kernel (if stuck on an LTS for everything else) : https://liquorix.net/#install