Delete support for buster.

Bookworm was just released, bullseye is now oldstable, and buster is now
oldoldstable. It doesn't seem to be worth it to keep building images for
it, so let's drop support for it right away.

.gitignore

@@ -5,11 +5,6 @@ raspi*.img.xz
 raspi*.log
 raspi*.tar.gz
 raspi*.sha256
-raspi_base_buster.yaml
-raspi_1_buster.yaml
-raspi_2_buster.yaml
-raspi_3_buster.yaml
-raspi_4_buster.yaml
 raspi_base_bullseye.yaml
 raspi_1_bullseye.yaml
 raspi_2_bullseye.yaml

Makefile

@@ -3,7 +3,7 @@ all: shasums
 # List all the supported and built Pi platforms here. They get expanded
 # to names like 'raspi_2_buster.yaml' and 'raspi_3_bullseye.img.xz'.
 BUILD_FAMILIES := 1 2 3 4
-BUILD_RELEASES := buster bullseye bookworm trixie
+BUILD_RELEASES := bullseye bookworm trixie
 
 platforms := $(foreach plat, $(BUILD_FAMILIES),$(foreach rel, $(BUILD_RELEASES),  raspi_$(plat)_$(rel)))
 
@@ -57,7 +57,7 @@ _ck_root:
 	[ `whoami` = 'root' ] # Only root can summon vmdb2 ☹
 
 _clean_yaml:
-	rm -f $(addsuffix .yaml,$(platforms)) raspi_base_buster.yaml raspi_base_bullseye.yaml raspi_base_bookworm.yaml raspi_base_trixie.yaml
+	rm -f $(addsuffix .yaml,$(platforms)) raspi_base_bullseye.yaml raspi_base_bookworm.yaml raspi_base_trixie.yaml
 _clean_images:
 	rm -f $(addsuffix .img,$(platforms))
 _clean_xzimages:

README.md

@@ -58,7 +58,7 @@ you'll need to execute `make` as root.
 The argument to `make` is constructed as follows:
 `raspi_<model>_<release>.<result-type>`
 
-Whereby <model\> is one of `1`, `2`, `3` or `4`, <release\> is either `buster`,
+Whereby <model\> is one of `1`, `2`, `3` or `4`, <release\> is either
 `bullseye`, `bookworm`, or `trixie`; and <result-type\> is `img` or `yaml`.
 
 Model `1` should be used for the Raspberry Pi 0, 0w and 1, models A and

generate-recipe.py

@@ -18,7 +18,7 @@ if version not in ["1", "2", "3", "4"]:
     sys.exit(1)
 
 suite = sys.argv[2]
-if suite not in ['buster', 'bullseye', 'bookworm', 'trixie']:
+if suite not in ['bullseye', 'bookworm', 'trixie']:
     print("E: unsupported suite %s" % suite, file=sys.stderr)
     sys.exit(1)
 target_yaml = 'raspi_%s_%s.yaml' % (version, suite)
@@ -41,11 +41,6 @@ elif version in ['3', '4']:
     dtb = '/usr/lib/linux-image-*-arm64/broadcom/bcm*rpi*.dtb'
 
 # APT and default firmware (name + handling)
-if suite == 'buster':
-    security_suite = '%s/updates' % suite
-    raspi_firmware = 'raspi3-firmware'
-    fix_firmware = True
-else:
 security_suite = '%s-security' % suite
 raspi_firmware = 'raspi-firmware'
 fix_firmware = False
@@ -54,7 +49,7 @@ else:
 # raspi-firmware was in 'non-free'
 #
 # ¹ https://www.debian.org/vote/2022/vote_003
-if suite not in ['buster', 'bullseye']:
+if suite != 'bullseye':
     firmware_component = 'non-free-firmware'
     firmware_component_old = 'non-free'
 else:
@@ -76,16 +71,6 @@ else:
 # Pi 4 on buster requires some backports:
 backports_enable = False
 backports_suite = '%s-backports' % suite
-if version == '4' and suite == 'buster':
-    backports_enable = "# raspi 4 needs kernel and firmware newer than buster's"
-    linux = '%s/%s' % (linux, backports_suite)
-    raspi_firmware = 'raspi-firmware/%s' % backports_suite
-    wireless_firmware = 'firmware-brcm80211/%s' % backports_suite
-    fix_firmware = False
-
-if version == '3' and suite == 'buster':
-    backports_enable = "# raspi 3 needs firmware-brcm80211 newer than buster's for wifi"
-    wireless_firmware = 'firmware-brcm80211/%s' % backports_suite
 
 # Serial console:
 if version in ['1', '2']:
@@ -104,9 +89,6 @@ if version == '4':
 # and stick to it!
 #
 # Hostname:
-if suite == 'buster':
-    hostname = 'rpi%s' % version
-else:
 hostname = 'rpi_%s' % version
 
 # Nothing yet!
@@ -136,15 +118,9 @@ else:
 """ % (backports_suite, firmware_component)
 
 # Buster requires an existing, empty /etc/machine-id file:
-if suite == 'buster':
-    touch_machine_id = 'touch /etc/machine-id'
-else:
 touch_machine_id = 'echo "uninitialized" > /etc/machine-id'
 
 # Buster shipped timesyncd directly into systemd:
-if suite == 'buster':
-    systemd_timesyncd = 'systemd'
-else:
 systemd_timesyncd = 'systemd-timesyncd'
 
 gitcommit = subprocess.getoutput("git show -s --pretty='format:%C(auto)%h (%s, %ad)' --date=short ")