Debian 13 “Trixie”(debian.org)

  chroot $MOUNTPOINT/ /bin/bash -c "http_proxy=$aptproxy apt-get -y --purge --allow remove-essential install sysvinit-core sysvinit-utils systemd-sysv- systemd-"

  $ cat /etc/apt/preferences.d/systemd

  # this is the only systemd package that is required, so we up its priority first...
  Package: libsystemd0
  Pin: release trixie
  Pin-Priority: 700

  # exclude the rest
  Package: systemd
  Pin: release *
  Pin-Priority: -1

  Package: *systemd*
  Pin: release *
  Pin-Priority: -1

  Package: systemd:i386
  Pin: release *
  Pin-Priority: -1

  Package: systemd:amd64
  Pin: release *
  Pin-Priority: -1

  # example:
  udevadm test-builtin net_setup_link /sys/class/net/eno4 2>/dev/null
  ID_NET_LINK_FILE=/usr/lib/systemd/network/99-default.link
  ID_NET_LINK_FILE_DROPINS=
  ID_NET_NAME=eno4  <-- note the NIC name that will happen after reboot

  for x in $(cat /etc/network/interfaces | grep auto | cut -d ' ' -f 2 | grep -Ev 'lo|bond0'); do echo -n $x:; udevadm test-builtin net_setup_link /sys/class/net/$x 2>/dev/null | grep NET_NAME| cut -d = -f 2; done

     "trixie"
     64-bit PC (amd64),
     64-bit ARM (arm64),
     ARM EABI (armel),
     ARMv7 (EABI hard-float ABI, armhf),
     64-bit little-endian PowerPC (ppc64el),
     64-bit little-endian RISC-V (riscv64),
     IBM System z (s390x)

  APT is moving to a different format for configuring where it downloads packages from. The files /etc/apt/sources.list and *.list files in /etc/apt/sources.list.d/ are replaced by files still in that directory but with names ending in .sources, using the new, more readable (deb822 style) format. For details see sources.list(5). Examples of APT configurations in these notes will be given in the new deb822 format.

  If your system is using multiple sources files then you will need to ensure they stay consistent.

  Modernizing will replace .list files with the new .sources format, add Signed-By values where they can be determined automatically, and save the old files into .list.bak files.

  This command supports the 'signed-by' and 'trusted' options. If you have specified other options inside [] brackets, please transfer them manually to the output files; see sources.list(5) for a mapping.

  1.) sudo apt-get update && sudo apt-get --yes upgrade && sudo apt-get --yes autoremove --purge
  2.) Update all entries of bookworm to trixie in /etc/apt/sources.list.
  3.) sudo apt full-upgrade
  4.) sudo reboot
  5.) sudo apt modernize-sources

  pip3 install <whatever> --prefix=/usr/local