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Debian 13 "Trixie"

Caution On systems with more than one EFI partition, such as systems set up for RAID with mdadm, grub-efi only upgrades one of the EFI partitions, the one mounted to /boot/efi. This can cause failure on reboot, with the system going into BIOS or EFI shell. Discussion here: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135137
See bottom of this gist for a way to verify EFI before rebooting, and upgrading the second copy so a reboot is safe

To start, read the official release notes.

If your install fits into "vanilla Debian plus maybe a handful of 3rd-party repos", then this guide for a simple upgrade to Debian 13 "trixie" from Debian 12 "bookworm" can be helpful. 3rd-party repos are handled with a find command.

Enable TRIM on non-Apple SSDs in OS X

NOTE: This is tested on the versions mentioned in the title, and NOT earlier or later versions. YMMV.

Run the following commands in Terminal…

Backup the original driver:

sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage-backup

	import smbus
	import getopt
	import sys
	from time import *
	from time import gmtime, strftime

	# TODO: Factor out all device_write calls to some PCF8574 specific module ...
	# will be different with another io expander

	# communication from expander to display: high nibble first, then low nibble