Add some stuff

Feature/exiftool

.gitignore

@@ -11,3 +11,4 @@
 /ntnu-b2xx
 /stamp9g20
 /lctr-rpi
+build.bash

architectures/cortex-a72.cfg

@@ -0,0 +1,6 @@
+cfg_target_canonical="armv11-$cfg_glued_vendor-linux-gnueabi"
+cfg_target_linux='arm'
+cfg_target_uboot_arch='arm'
+cfg_target_gcc_flags='-O2 -pipe -funit-at-a-time -mcpu=cortex-a72 -mtune=cortex-a72 -mfloat-abi=hard -mfpu=neon-fp-armv8'
+cfg_target_gcc_configure_flags='--with-cpu=cortex-a72 --with-tune=cortex-a72 --with-fpu=neon-fp-armv8 --with-float=hard'
+cfg_target_ar_flags='aarch64-elf'

docker/Makefile

@@ -23,9 +23,10 @@
 TAG     := glued
 VERSION := 2016.05.0
 VOLUME  := $(CURDIR)/..
+DNS	:= 8.8.8.8
 
 all:
 	docker build -t $(TAG):$(VERSION) .
 
 shell:
-	docker run -w $(VOLUME) -i -a stdin -a stdout -v $(VOLUME):$(VOLUME) -t $(TAG):$(VERSION)
+	docker run -w $(VOLUME) --dns=$(DNS) -i -a stdin -a stdout -v $(VOLUME):$(VOLUME) -t $(TAG):$(VERSION)

functions.bash

@@ -1,6 +1,6 @@
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

mkconfig.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

mkdisk.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

mkpackage.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #
@@ -72,7 +72,7 @@ download()
         fi
 
 	# First try LSTS mirror.
-	lsts_url="http://lsts.pt/glued/$(basename $u)"
+	lsts_url="https://www.lsts.pt/glued/$(basename $u)"
         download_tool "$lsts_url" "$cfg_dir_downloads/$file"
         if [ $? -ne 0 ]; then
 	    # Then try OceanScan-MST mirror.

mksystem.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

mkupdate.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

pkrootfs.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

pktoolchain.bash

@@ -1,7 +1,7 @@
 #! /bin/bash
 ###########################################################################
 # GLUED: GNU/Linux Uniform Environment Distribution                       #
-# Copyright (C) 2007-2017 Universidade do Porto - Faculdade de Engenharia #
+# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
 # Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
 ###########################################################################
 # This program is free software; you can redistribute it and/or modify    #

rules/binutils/cross.bash

@@ -1,16 +1,16 @@
 version=\
 (
-    '2.25.1'
+    '2.35'
 )
 
 url=\
 (
-    "http://mirrors.kernel.org/gnu/binutils/binutils-$version.tar.bz2"
+    "http://mirrors.kernel.org/gnu/binutils/binutils-$version.tar.xz"
 )
 
 md5=\
 (
-    'ac493a78de4fee895961d025b7905be4'
+    'fc8d55e2f6096de8ff8171173b6f5087'
 )
 
 maintainer=\

rules/binutils/default.bash

@@ -0,0 +1,43 @@
+version=\
+(
+    '2.35'
+)
+
+url=\
+(
+    "http://mirrors.kernel.org/gnu/binutils/binutils-$version.tar.xz"
+)
+
+md5=\
+(
+    'fc8d55e2f6096de8ff8171173b6f5087'
+)
+
+maintainer=\
+(
+    'Ricardo Martins <rasm@fe.up.pt>'
+)
+
+build_dir=$pkg_var
+
+configure()
+{
+    "../binutils-$version/configure" \
+        --prefix="$cfg_dir_toolchain" \
+        --target="$cfg_target_canonical" \
+        --host="$cfg_host_canonical" \
+        --build="$cfg_host_canonical" \
+        --with-sysroot="$cfg_dir_toolchain_sysroot" \
+        --disable-multilib \
+        --disable-nls
+}
+
+build()
+{
+    $cmd_make
+}
+
+host_install()
+{
+    $cmd_make install-strip
+}

rules/bison/default.bash

@@ -0,0 +1,37 @@
+version=\
+(
+    '2.5.1'
+)
+
+url=\
+(
+    "http://ftp.gnu.org/gnu/bison/bison-$version.tar.gz"
+)
+
+md5=\
+(
+    '8fedf916f1aa2c4a31441d8f8bbc603c'
+)
+
+maintainer=\
+(
+    'Ricardo Martins <rasm@fe.up.pt>'
+)
+
+configure()
+{
+    ./configure \
+        --prefix="$cfg_dir_toolchain" \
+        --disable-shared \
+        --enable-static
+}
+
+build()
+{
+    $cmd_make
+}
+
+host_install()
+{
+    $cmd_make install
+}

rules/boost/default.bash

@@ -37,7 +37,8 @@ configure()
 {
     cd "../boost_$vendor_version" &&
     ./bootstrap.sh \
-        --with-icu="$cfg_dir_toolchain_sysroot/usr"
+        --with-icu="$cfg_dir_toolchain_sysroot/usr" \
+        --with-libraries="regex,filesystem,system,thread"
 
     GXX_VER=$(${cmd_target_cxx} -dumpversion)
     echo "using gcc : ${GXX_VER}  : ${cmd_target_cxx} : <cxxflags>\"-pipe -Os  -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 ${cfg_target_gcc_flags} \" <linkflags>\"\" ;" > user-config.jam

rules/curl/default.bash

@@ -35,6 +35,11 @@ build()
 host_install()
 {
     $cmd_make install
+    # make available for cross compilation
+    for f in "${cfg_dir_toolchain_sysroot}/usr/lib/"libcurl*so*; do
+        echo "Doing $f"
+        ln -s -f "$f" "${cfg_dir_toolchain}/lib"
+    done
 }
 
 target_install()

rules/exiftool/default.bash

@@ -0,0 +1,37 @@
+version=\
+(
+  "10.96"
+)
+
+url=\
+(
+  "https://lsts.pt/glued/exiftoolBin-${version}.tar.gz"
+)
+
+md5=\
+(
+  "71d52bf2d75f023b844dd8c9100daaff"
+)
+
+maintainer=\
+(
+  'Pedro Gonçalves <pedro@lsts.pt>'
+)
+
+requires=\
+(
+    'perl/default'
+)
+
+post_unpack()
+{
+    $cmd_cp -r ../exiftoolBin-${version}/* .
+}
+
+target_install()
+{
+   $cmd_cp -rv usr/* $cfg_dir_toolchain_sysroot/usr/
+   $cmd_cp -rv usr/* $cfg_dir_rootfs/usr/
+   $cmd_cp -rv usr/local/bin/* $cfg_dir_rootfs/usr/bin/
+}
+

rules/gcc/common.bash

@@ -1,16 +1,16 @@
 version=\
 (
-    '4.9.3'
+    '10.2.0'
 )
 
 url=\
 (
-    "http://mirrors.kernel.org/gnu/gcc/gcc-$version/gcc-$version.tar.bz2"
+    "http://mirrors.kernel.org/gnu/gcc/gcc-$version/gcc-$version.tar.xz"
 )
 
 md5=\
 (
-    '6f831b4d251872736e8e9cc09746f327'
+    'e9fd9b1789155ad09bcf3ae747596b50'
 )
 
 build_dir=$pkg_var

rules/kplex/default.bash

@@ -0,0 +1,25 @@
+version=\
+(
+    '1.4'
+)
+
+url=\
+(
+    "https://github.com/stripydog/kplex/archive/v$version.tar.gz"
+)
+
+md5=\
+(
+    'df198384d2d7dee4b802136f4f9e9d44'
+)
+
+build()
+{
+    cd ../kplex-$version && $cmd_make VERBOSE=1 CC="$cmd_target_cc"
+}
+
+target_install()
+{
+    $cmd_cp ../kplex-$version/kplex "$cfg_dir_rootfs/usr/bin/kplex"
+}
+

rules/libtirpc/default.bash

@@ -1,6 +1,6 @@
 version=\
 (
-    '0.2.5'
+    '1.2.6'
 )
 
 url=\
@@ -10,7 +10,7 @@ url=\
 
 md5=\
 (
-    '8cd41a5ef5a9b50d0fb6abb98af15368'
+    'b25f9cc18bfad50f7c446c77f4ae00bb'
 )
 
 maintainer=\

rules/linux-headers/cross.bash

@@ -1,11 +1,11 @@
 version=\
 (
-    '4.4.66'
+    '5.8.7'
 )
 
 url=\
 (
-    "https://www.kernel.org/pub/linux/kernel/v4.x/linux-$version.tar.xz"
+    "https://www.kernel.org/pub/linux/kernel/v5.x/linux-$version.tar.xz"
 )
 
 md5=\

rules/linux/default.bash

@@ -1,16 +1,16 @@
 version=\
 (
-    '4.4.66'
+    '5.4'
 )
 
 url=\
 (
-    "https://www.kernel.org/pub/linux/kernel/v4.x/linux-$version.tar.xz"
+    "https://www.kernel.org/pub/linux/kernel/v5.x/linux-$version.tar.xz"
 )
 
 md5=\
 (
-    '5353de56bf4621a35afc4384c7e51f30'
+    'ce9b2d974d27408a61c53a30d3f98fb9'
 )
 
 maintainer=\

rules/linux/rpi.bash

@@ -2,19 +2,19 @@
 
 version=\
 (
-    '4.4_2017-01-27'
+    '5.4'
 )
 
 url=\
 (
-    "http://lsts.pt/glued/rpi-linux-$version.zip"
+    "http://archive.ubuntu.com/ubuntu/pool/universe/l/linux-raspi2/linux-raspi2_$version.0.orig.tar.gz"
 )
 
 md5=\
 (
-    'f31d48a9d2c93509b35e750be489b44c'
+    '0707e4b2cbaf1428055d6615be04559e'
 )
 
-build_dir="rpi-linux-rpi-linux-$version"
+build_dir="linux-$version"
 
 find_patches

rules/opencv/default.bash

@@ -63,6 +63,11 @@ host_install()
 {
     cd  ${pkg_build_dir}/../build &&
     $cmd_make install
+
+    # make available for cross compilation
+    for f in "$cfg_dir_toolchain_sysroot/usr/lib/"libopencv*so*; do
+       ln -s -f "$f" "$cfg_dir_toolchain/lib"
+    done
 }
 
 target_install()

rules/openssl/default.bash

@@ -1,6 +1,6 @@
 version=\
 (
-    '1.0.2e'
+    '1.1.1f'
 )
 
 url=\
@@ -10,7 +10,7 @@ url=\
 
 md5=\
 (
-    '5262bfa25b60ed9de9f28d5d52d77fc5'
+    '3f486f2f4435ef14b81814dbbc7b48bb'
 )
 
 requires=\
@@ -23,6 +23,7 @@ configure()
     ./Configure linux-generic32 --cross-compile-prefix="$cfg_target_canonical-" \
                 --prefix="$cfg_dir_toolchain_sysroot/usr" \
                 --openssldir="$cfg_dir_toolchain_sysroot/usr" \
+		--libdir=lib \
                 shared
 }
 

rules/rpcbind/default.bash

@@ -1,6 +1,6 @@
 version=\
 (
-    '0.2.2'
+    '1.2.5'
 )
 
 url=\
@@ -10,7 +10,7 @@ url=\
 
 md5=\
 (
-    '8acf839bfef2364a05fbd6be5f8edf9a'
+    'ed46f09b9c0fa2d49015f6431bc5ea7b'
 )
 
 maintainer=\

rules/rpi-boot-firmware/default.bash

@@ -1,11 +1,15 @@
 version=\
 (
-    '2017-02-02'
+    '1.20200212',
+    '2019.07',
+    '3.98ubuntu12'
 )
 
 url=\
 (
-    "http://lsts.pt/glued/rpi-boot-firmware-$version.zip"
+    "http://archive.ubuntu.com/ubuntu/pool/multiverse/l/linux-firmware-raspi2/linux-firmware-raspi2_$version.orig.tar.gz",
+    "http://archive.ubuntu.com/ubuntu/pool/main/u/u-boot/u-boot_$version+dfsg.orig.tar.xz",
+    "http://archive.ubuntu.com/ubuntu/pool/main/f/flash-kernel/flash-kernel_$version.tar.xz"
 )
 
 maintainer=\
@@ -16,7 +20,9 @@ maintainer=\
 
 md5=\
 (
-    'eb42664fce4d73f167064e697dfacb76'
+    '5b35887b1026fafe8174f473679d175a',
+    '5b35887b1026fafe8174f473679d175a',
+    '5b35887b1026fafe8174f473679d175a'
 )
 
 target_install()

rules/zerotier/default.bash

@@ -0,0 +1,34 @@
+version=\
+(
+    '1.4.2'
+)
+
+url=\
+(
+    "https://github.com/zerotier/ZeroTierOne/archive/$version.tar.gz"
+)
+
+md5=\
+(
+    'c173f8b61bcdb23844a2669ff0d7bdf0'
+)
+
+build()
+{
+    cd ../ZeroTierOne-$version && $cmd_make \
+                VERBOSE=1 \
+                CC="$cmd_target_cc" \
+                CXX="$cmd_target_cxx" \
+		        LD="$cmd_target_ld" \
+                STRIP="$cmd_target_strip" \
+                CC_FLAGS="$cfg_target_gcc_flags"
+
+}
+
+target_install()
+{
+    $cmd_cp "../ZeroTierOne-$version/zerotier-one" "$cfg_dir_rootfs/usr/bin/zerotier-one"
+    ln -sf "$cfg_dir_rootfs/usr/bin/zerotier-one" "$cfg_dir_rootfs/usr/bin/zerotier-cli"
+    ln -sf "$cfg_dir_rootfs/usr/bin/zerotier-one" "$cfg_dir_rootfs/usr/bin/zerotier-idtool"
+}
+

systems/lauv-aux-rpi/lauv-blue.cfg

@@ -0,0 +1,6 @@
+cfg_hostname='lauv-blue'
+cfg_eth_ext_ip='10.0.2.55'
+cfg_eth_ext_mk='255.255.0.0'
+cfg_eth_ext_gw='10.0.0.1'
+cfg_ptpd_interface='eth0'
+cfg_services1=''

systems/lauv-aux-rpi/lauv-nemo-1-aux.cfg

@@ -0,0 +1,3 @@
+cfg_hostname='lauv-nemo-1-aux'
+cfg_eth_ext_ip='10.0.10.63'
+cfg_packages="$cfg_packages boost"

systems/lauv-aux-rpi/lauv-xplore-1-aux.cfg

@@ -6,5 +6,5 @@ cfg_ptpd_interface='eth0'
 cfg_services0='network dropbear storage upgrade syslog ptpd'
 cfg_services1=''
 cfg_services2='trex'
-cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost europa'
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost'
 

systems/lauv-aux-rpi/lauv-xplore-2-aux.cfg

@@ -6,5 +6,5 @@ cfg_ptpd_interface='eth0'
 cfg_services0='network dropbear storage upgrade syslog ptpd'
 cfg_services1=''
 cfg_services2='trex'
-cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost europa'
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost'
 

systems/lauv-aux-rpi/lauv-xplore-3-aux.cfg

@@ -6,5 +6,5 @@ cfg_ptpd_interface='eth0'
 cfg_services0='network dropbear storage upgrade syslog ptpd'
 cfg_services1=''
 cfg_services2='trex'
-cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost europa'
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost'
 

systems/lauv-aux-rpi/lauv-xplore-4-aux.cfg

@@ -6,5 +6,5 @@ cfg_ptpd_interface='eth0'
 cfg_services0='network dropbear storage upgrade syslog ptpd'
 cfg_services1=''
 cfg_services2='trex'
-cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost europa'
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost'
 

systems/lauv-aux-rpi/lauv-xplore-5-aux.cfg

@@ -6,5 +6,5 @@ cfg_ptpd_interface='eth0'
 cfg_services0='network dropbear storage upgrade syslog ptpd'
 cfg_services1=''
 cfg_services2='trex'
-cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost europa'
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind nfs-utils rpi-boot-firmware linux/rpi libantlr3c boost'
 

systems/lctr-a6xx/buv-petinga-1.cfg

@@ -0,0 +1,2 @@
+cfg_hostname='buv-petinga-1'
+cfg_eth_ext_ip='10.0.10.170'

systems/lctr-a6xx/geode-testbed.cfg

@@ -0,0 +1,2 @@
+cfg_hostname='geode-testbed'
+cfg_eth_ext_ip='10.0.200.64'

systems/lctr-a6xx/lauv-nemo-1.cfg

@@ -0,0 +1,2 @@
+cfg_hostname='lauv-nemo-1'
+cfg_eth_ext_ip='10.0.10.60'

systems/lctr-a72xx/cfg/firmware/cmdline.txt

@@ -0,0 +1 @@
+net.ifnames=0 dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait

systems/lctr-a72xx/cfg/firmware/config.txt

@@ -0,0 +1,51 @@
+# For more options and information see 
+# http://www.raspberrypi.org/documentation/configuration/config-txt.md
+# Some settings may impact device functionality. See link above for details
+
+kernel=uboot.bin
+device_tree_address=0x02000000
+
+# enable i2c
+dtparam=i2c_arm=on
+dtparam=spi=on
+
+# uncomment if you get no picture on HDMI for a default "safe" mode
+#hdmi_safe=1
+
+# uncomment this if your display has a black border of unused pixels visible
+# and your display can output without overscan
+#disable_overscan=1
+
+# uncomment the following to adjust overscan. Use positive numbers if console
+# goes off screen, and negative if there is too much border
+#overscan_left=16
+#overscan_right=16
+#overscan_top=16
+#overscan_bottom=16
+
+# uncomment to force a console size. By default it will be display's size minus
+# overscan.
+#framebuffer_width=1280
+#framebuffer_height=720
+
+# uncomment if hdmi display is not detected and composite is being output
+#hdmi_force_hotplug=1
+
+# uncomment to force a specific HDMI mode (this will force VGA)
+#hdmi_group=1
+#hdmi_mode=1
+
+# uncomment to force a HDMI mode rather than DVI. This can make audio work in
+# DMT (computer monitor) modes
+#hdmi_drive=2
+
+# uncomment to increase signal to HDMI, if you have interference, blanking, or
+# no display
+#config_hdmi_boost=4
+
+# uncomment for composite PAL
+#sdtv_mode=2
+
+#uncomment to overclock the arm. 700 MHz is the default.
+#arm_freq=800
+

systems/lctr-a72xx/config

@@ -0,0 +1,19 @@
+cfg_architecture='cortex-a72'
+cfg_storage='data0:ext4:/opt'
+cfg_services0='dropbear network storage upgrade syslog ptpd'
+cfg_services1=''
+cfg_services2='dune'
+cfg_modules=''
+cfg_packages='dropbear rsync busybox e2fsprogs dosfstools ptpd rpcbind rpi-boot-firmware bison binutils openssl linux/rpi exiftool libusb'
+cfg_target_linux_kernel='arch/arm/boot/zImage'
+cfg_ptpd_interface='eth0'
+cfg_eth_ext_mk='255.255.0.0'
+cfg_eth_ext_gw='10.0.0.1'
+cfg_terminal='tty1'
+cfg_partitions=\
+(
+    rpi-boot BOOT0  512B    32MiB
+    root     root0  32MiB   544MiB
+    data     data0  544MiB  -1
+)
+

systems/lctr-a72xx/fs/boot/README

@@ -0,0 +1,26 @@
+An overview of the files on the /boot/firmware partition (the 1st partition
+on the SD card) used by the Ubuntu boot process (roughly in order) is as
+follows:
+
+* bootcode.bin   - this is the second stage bootloader loaded by all pis with
+                   the exception of the pi4 (where this is replaced by flash
+                   memory)
+* config.txt     - the first configuration file read by the boot process
+* syscfg.txt     - the file in which system modified configuration will be
+                   placed, included by config.txt
+* usercfg.txt    - the file in which user modified configuration should be
+                   placed, included by config.txt
+* start*.elf     - the third stage bootloader, which handles device-tree
+                   modification and which loads...
+* uboot*.bin     - various u-boot binaries for different pi platforms; these
+                   are launched as the "kernel" by config.txt
+* boot.scr       - the boot script executed by uboot*.bin which in turn
+                   loads...
+* vmlinuz        - the Linux kernel, executed by boot.scr
+* initrd.img     - the initramfs, executed by boot.scr
+* meta-data      - meta-data for cloud-init; usually just contains the
+                   instance id
+* network-config - network configuration for cloud-init; edit this to set up
+                   wifi access points and other networking settings
+* user-data      - user-data for cloud-init; edit this to configure initial
+                   users, SSH keys, packages, etc.

systems/lctr-a72xx/fs/boot/cmdline.txt

@@ -0,0 +1 @@
+net.ifnames=0 dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1 root=LABEL=writable rootfstype=ext4 elevator=deadline rootwait fixrtc

systems/lctr-a72xx/fs/boot/config.txt

@@ -0,0 +1,35 @@
+# Please DO NOT modify this file; if you need to modify the boot config, the
+# "usercfg.txt" file is the place to include user changes. Please refer to
+# the README file for a description of the various configuration files on
+# the boot partition.
+
+# The unusual ordering below is deliberate; older firmwares (in particular the
+# version initially shipped with bionic) don't understand the conditional
+# [sections] below and simply ignore them. The Pi4 doesn't boot at all with
+# firmwares this old so it's safe to place at the top. Of the Pi2 and Pi3, the
+# Pi3 uboot happens to work happily on the Pi2, so it needs to go at the bottom
+# to support old firmwares.
+
+[pi4]
+kernel=uboot_rpi_4.bin
+max_framebuffers=2
+
+[pi2]
+kernel=uboot_rpi_2.bin
+
+[pi3]
+kernel=uboot_rpi_3.bin
+
+[all]
+arm_64bit=1
+device_tree_address=0x03000000
+
+# The following settings are "defaults" expected to be overridden by the
+# included configuration. The only reason they are included is, again, to
+# support old firmwares which don't understand the "include" command.
+
+enable_uart=1
+cmdline=cmdline.txt
+
+include syscfg.txt
+include usercfg.txt

systems/lctr-a72xx/fs/boot/meta-data

@@ -0,0 +1,7 @@
+# This is the meta-data configuration file for cloud-init. Typically this just
+# contains the instance_id. Please refer to the cloud-init documentation for
+# more information:
+#
+# https://cloudinit.readthedocs.io/
+
+instance_id: cloud-image

systems/lctr-a72xx/fs/boot/network-config

@@ -0,0 +1,30 @@
+# This file contains a netplan-compatible configuration which cloud-init
+# will apply on first-boot. Please refer to the cloud-init documentation and
+# the netplan reference for full details:
+#
+# https://cloudinit.readthedocs.io/
+# https://netplan.io/reference
+#
+# Some additional examples are commented out below
+
+version: 2
+ethernets:
+  eth0:
+    dhcp4: true
+    optional: true
+#wifis:
+#  wlan0:
+#    dhcp4: true
+#    optional: true
+#    access-points:
+#      myhomewifi:
+#        password: "S3kr1t"
+#      myworkwifi:
+#        password: "correct battery horse staple"
+#      workssid:
+#        auth:
+#          key-management: eap
+#          method: peap
+#          identity: "me@example.com"
+#          password: "passw0rd"
+#          ca-certificate: /etc/my_ca.pem