Add build scripts for embedded (netboot) edition

README.md

@@ -9,6 +9,7 @@ Raspberry Pi Imaging Utility
 
 The main code of the Imaging Utility is made available under the terms of the Apache license.
 See license.txt and files in "src/dependencies" folder for more information about the various open source licenses that apply to the third-party dependencies used such as Qt, libarchive, drivelist, mountutils and libcurl.
+For the embedded (netboot) build see also "embedded/legal-info" for more information about the extra system software included in that.
 
 ## How to rebuild
 
@@ -91,7 +92,7 @@ sudo make install
 - Get the Qt online installer from: https://www.qt.io/download-open-source
 During installation, choose a Qt 5.x with Mingw32 32-bit toolchain and CMake.
 
-- If using the official Qt distribution that does NOT have schannel (Windows native SSL library) support, compile OpenSSL libraries ( https://wiki.qt.io/Compiling_OpenSSL_with_MinGW ) and copy the libssl/crypto DLLs to C:\qt\5.x\mingw73_32\bin
+- If using the official Qt distribution that does NOT have schannel (Windows native SSL library) support, compile OpenSSL libraries ( https://wiki.qt.io/Compiling_OpenSSL_with_MinGW ) and copy the libssl/crypto DLLs to C:\qt\5.x\mingw73_32\bin  the include files to C:\qt\5.x\mingw73_32\include and the import library files to C:\qt\5.x\mingw73_32\lib
 
 - For building installer get Nullsoft scriptable install system: https://nsis.sourceforge.io/Download
 
@@ -140,6 +141,23 @@ xcrun altool --notarize-app -t osx -f imager.dmg --primary-bundle-id="org.raspbe
 xcrun stapler staple imager.dmg
 ```
 
+### Linux embedded (netboot) build
+
+The embedded build runs under a minimalistic Linux distribution compiled by buildroot.
+To build:
+
+- You must be running a Linux system, and have the buildroot dependencies installed as listed in the buildroot manual: https://buildroot.org/downloads/manual/manual.html#requirement
+- Run:
+
+```
+cd rpi-imager/embedded
+./build.sh
+```
+
+The result will be in the "output" directory.
+The files can be copied to a FAT32 formatted SD card, and inserted in a Pi for testing.
+If you would like to build a (signed) netboot image there are tools for that at: https://github.com/raspberrypi/usbboot/tree/master/tools
+
 ## Other notes
 
 ### Debugging

embedded/.gitignore

@@ -0,0 +1 @@
+buildroot

embedded/build.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+
+set -e
+
+BUILDROOT=buildroot
+BUILDROOT_TAR=buildroot-20220122.tar.bz2
+
+if [ ! -e $BUILDROOT ]; then
+    tar xjf $BUILDROOT_TAR
+fi
+
+if [ ! -e $BUILDROOT/.config ]; then
+    make -C $BUILDROOT BR2_EXTERNAL="$PWD/imager" rpi-imager_defconfig
+fi
+
+#
+# Build everything
+#
+make -C $BUILDROOT BR2_EXTERNAL="$PWD/imager"
+
+#
+# Copy the files we are interested in from buildroot's "output/images" directory
+# to our "output" directory in top level directory 
+#
+
+# Copy Linux kernel and initramfs
+cp $BUILDROOT/output/images/rootfs.cpio.zst $BUILDROOT/output/images/zImage output
+# Raspberry Pi firmware files
+cp $BUILDROOT/output/images/rpi-firmware/start4.elf output
+cp $BUILDROOT/output/images/rpi-firmware/fixup4.dat output
+cp $BUILDROOT/output/images/*.dtb output
+
+# Not used by Pi 4, but need to be present to make usbboot think it is a valid directory
+touch output/bootcode.bin
+
+mkdir -p output/overlays
+
+mv -f output/dwc2-overlay.dtb output/overlays/dwc2.dtbo
+mv -f output/vc4-fkms-v3d-pi4-overlay.dtb output/overlays/vc4-fkms-v3d-pi4.dtbo
+mv -f output/vc4-kms-v3d-pi4-overlay.dtb output/overlays/vc4-kms-v3d-pi4.dtbo
+mv -f output/disable-bt-overlay.dtb output/overlays/disable-bt.dtbo
+mv -f output/disable-wifi-overlay.dtb output/overlays/disable-wifi.dtbo
+
+echo
+echo Build complete. Files are in output folder.
+echo

embedded/imager/Config.in

@@ -0,0 +1,2 @@
+source "$BR2_EXTERNAL_IMAGER_PATH/package/rpi-imager/Config.in"
+source "$BR2_EXTERNAL_IMAGER_PATH/package/rpi-firmware-custom/Config.in"

embedded/imager/board/bcm2711_defconfig_minus_modules

@@ -0,0 +1,390 @@
+CONFIG_LOCALVERSION="-v7l"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_GENERIC_IRQ_DEBUGFS=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_MEMCG=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_BPF=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM2835=y
+CONFIG_ARM_LPAE=y
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_SMP=y
+CONFIG_HIGHMEM=y
+CONFIG_UACCESS_WITH_MEMCPY=y
+# CONFIG_ATAGS is not set
+CONFIG_CMDLINE="console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
+CONFIG_CPUFREQ_DT=y
+CONFIG_ARM_RASPBERRYPI_CPUFREQ=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_KERNEL_MODE_NEON=y
+# CONFIG_SUSPEND is not set
+CONFIG_PM=y
+CONFIG_RASPBERRYPI_FIRMWARE=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_MAC_PARTITION=y
+CONFIG_CLEANCACHE=y
+CONFIG_FRONTSWAP=y
+CONFIG_CMA=y
+CONFIG_ZSWAP=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_RARP=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_SIT_6RD=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_TIMESTAMP=y
+CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_PROTO_UDP=y
+CONFIG_IP_VS_PROTO_ESP=y
+CONFIG_IP_VS_PROTO_AH=y
+CONFIG_IP_VS_PROTO_SCTP=y
+CONFIG_NF_TABLES_ARP=y
+CONFIG_SCTP_COOKIE_HMAC_SHA1=y
+CONFIG_L2TP_V3=y
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_NET_SCHED=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_GACT_PROB=y
+CONFIG_CGROUP_NET_PRIO=y
+CONFIG_HAMRADIO=y
+CONFIG_BT_RFCOMM_TTY=y
+CONFIG_BT_BNEP_MC_FILTER=y
+CONFIG_BT_BNEP_PROTO_FILTER=y
+CONFIG_BT_HCIUART_3WIRE=y
+CONFIG_BT_HCIUART_BCM=y
+CONFIG_CFG80211_WEXT=y
+CONFIG_MAC80211_MESH=y
+CONFIG_RFKILL_INPUT=y
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+# CONFIG_PCIEASPM is not set
+CONFIG_PCI_MSI=y
+CONFIG_PCIE_BRCMSTB=y
+CONFIG_UEVENT_HELPER=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_OF_CONFIGFS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_NVME=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_SCSI_ISCSI_ATTRS=y
+CONFIG_MD=y
+CONFIG_NETDEVICES=y
+CONFIG_BCMGENET=y
+CONFIG_MICREL_PHY=y
+CONFIG_PPP_FILTER=y
+CONFIG_PPP_MULTILINK=y
+CONFIG_SLIP_COMPRESSED=y
+CONFIG_SLIP_SMART=y
+CONFIG_USB_RTL8152=y
+CONFIG_USB_LAN78XX=y
+CONFIG_USB_USBNET=y
+CONFIG_USB_NET_SMSC95XX=y
+CONFIG_USB_ALI_M5632=y
+CONFIG_USB_AN2720=y
+CONFIG_USB_EPSON2888=y
+CONFIG_USB_KC2190=y
+# CONFIG_B43_PHY_N is not set
+CONFIG_BRCMFMAC_USB=y
+CONFIG_BRCMDBG=y
+CONFIG_RT2800USB_RT3573=y
+CONFIG_RT2800USB_RT53XX=y
+CONFIG_RT2800USB_RT55XX=y
+CONFIG_RT2800USB_UNKNOWN=y
+CONFIG_INPUT_MOUSEDEV=y
+CONFIG_INPUT_EVDEV=y
+# CONFIG_KEYBOARD_ATKBD is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_JOYSTICK=y
+CONFIG_JOYSTICK_XPAD_FF=y
+CONFIG_JOYSTICK_XPAD_LEDS=y
+CONFIG_JOYSTICK_PSXPAD_SPI_FF=y
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_INPUT_MISC=y
+CONFIG_BRCM_CHAR_DRIVERS=y
+CONFIG_BCM_VCIO=y
+CONFIG_BCM2835_DEVGPIOMEM=y
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+# CONFIG_SERIAL_8250_DMA is not set
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=0
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_8250_BCM2835AUX=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_SC16IS7XX_SPI=y
+CONFIG_SERIAL_DEV_BUS=y
+CONFIG_TTY_PRINTK=y
+CONFIG_HW_RANDOM=y
+CONFIG_RAW_DRIVER=y
+CONFIG_RANDOM_TRUST_BOOTLOADER=y
+CONFIG_I2C=y
+CONFIG_SPI=y
+CONFIG_SPI_SLAVE=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_BCM_VIRT=y
+CONFIG_GPIO_PCA953X_IRQ=y
+CONFIG_GPIO_STMPE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_GPIO=y
+CONFIG_THERMAL=y
+CONFIG_BCM2711_THERMAL=y
+CONFIG_WATCHDOG=y
+CONFIG_BCM2835_WDT=y
+CONFIG_MFD_STMPE=y
+CONFIG_STMPE_SPI=y
+CONFIG_MFD_WM5102=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_RC_CORE=y
+CONFIG_LIRC=y
+CONFIG_BPF_LIRC_MODE2=y
+CONFIG_RC_DECODERS=y
+CONFIG_RC_DEVICES=y
+CONFIG_MEDIA_CEC_RC=y
+CONFIG_MEDIA_USB_SUPPORT=y
+CONFIG_VIDEO_AU0828_RC=y
+CONFIG_DVB_USB_DIBUSB_MB_FAULTY=y
+CONFIG_V4L_PLATFORM_DRIVERS=y
+CONFIG_DRM_LOAD_EDID_FIRMWARE=y
+CONFIG_DRM_VC4_HDMI_CEC=y
+CONFIG_FB=y
+CONFIG_FB_BCM2708=y
+CONFIG_FB_SIMPLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_SOUND=y
+CONFIG_SND_OSSEMUL=y
+CONFIG_SND_USB_CAIAQ_INPUT=y
+CONFIG_HID_BATTERY_STRENGTH=y
+CONFIG_HIDRAW=y
+CONFIG_LOGITECH_FF=y
+CONFIG_LOGIRUMBLEPAD2_FF=y
+CONFIG_LOGIG940_FF=y
+CONFIG_SONY_FF=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PLATFORM=y
+CONFIG_USB_DWCOTG=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_UAS=y
+CONFIG_USB_SERIAL_GENERIC=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_CONFIGFS_SERIAL=y
+CONFIG_USB_CONFIGFS_ACM=y
+CONFIG_USB_CONFIGFS_OBEX=y
+CONFIG_USB_CONFIGFS_NCM=y
+CONFIG_USB_CONFIGFS_ECM=y
+CONFIG_USB_CONFIGFS_ECM_SUBSET=y
+CONFIG_USB_CONFIGFS_RNDIS=y
+CONFIG_USB_CONFIGFS_EEM=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_LB_SS=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_UAC1=y
+CONFIG_USB_CONFIGFS_F_UAC2=y
+CONFIG_USB_CONFIGFS_F_MIDI=y
+CONFIG_USB_CONFIGFS_F_HID=y
+CONFIG_USB_CONFIGFS_F_UVC=y
+CONFIG_USB_CONFIGFS_F_PRINTER=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK_MINORS=32
+CONFIG_MMC_BCM2835_MMC=y
+CONFIG_MMC_BCM2835_DMA=y
+CONFIG_MMC_BCM2835_SDHOST=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SDHCI_IPROC=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_PWM=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_CPU=y
+CONFIG_LEDS_TRIGGER_GPIO=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_INPUT=y
+CONFIG_LEDS_TRIGGER_PANIC=y
+CONFIG_LEDS_TRIGGER_ACTPWR=y
+CONFIG_ACCESSIBILITY=y
+CONFIG_RTC_CLASS=y
+CONFIG_DMADEVICES=y
+CONFIG_DMA_BCM2835=y
+CONFIG_DMA_BCM2708=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DMABUF_HEAPS_CMA=y
+CONFIG_AUXDISPLAY=y
+CONFIG_STAGING=y
+CONFIG_STAGING_MEDIA=y
+CONFIG_BCM2835_VCHIQ=y
+CONFIG_CLK_RASPBERRYPI=y
+CONFIG_MAILBOX=y
+CONFIG_BCM2835_MBOX=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RASPBERRYPI_POWER=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_REISERFS_FS_XATTR=y
+CONFIG_REISERFS_FS_POSIX_ACL=y
+CONFIG_REISERFS_FS_SECURITY=y
+CONFIG_JFS_POSIX_ACL=y
+CONFIG_JFS_SECURITY=y
+CONFIG_JFS_STATISTICS=y
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_F2FS_FS=y
+CONFIG_F2FS_FS_SECURITY=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FANOTIFY=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FSCACHE=y
+CONFIG_FSCACHE_STATS=y
+CONFIG_FSCACHE_HISTOGRAM=y
+CONFIG_CACHEFILES=y
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_FAT_DEFAULT_IOCHARSET="ascii"
+CONFIG_NTFS_RW=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_JFFS2_SUMMARY=y
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_SWAP=y
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_V4_2=y
+CONFIG_ROOT_NFS=y
+CONFIG_NFS_FSCACHE=y
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_UPCALL=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+CONFIG_CIFS_DFS_UPCALL=y
+CONFIG_CIFS_FSCACHE=y
+CONFIG_9P_FS_POSIX_ACL=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_APPARMOR=y
+CONFIG_LSM=""
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC_ITU_T=y
+CONFIG_LIBCRC32C=y
+CONFIG_DMA_CMA=y
+CONFIG_CMA_SIZE_MBYTES=5
+CONFIG_PRINTK_TIME=y
+CONFIG_BOOT_PRINTK_DELAY=y
+CONFIG_KGDB=y
+CONFIG_KGDB_KDB=y
+CONFIG_KDB_KEYBOARD=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DETECT_HUNG_TASK=y
+# CONFIG_RCU_TRACE is not set
+CONFIG_LATENCYTOP=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_STACK_TRACER=y
+CONFIG_IRQSOFF_TRACER=y
+CONFIG_SCHED_TRACER=y
+CONFIG_BLK_DEV_IO_TRACE=y
+# CONFIG_UPROBE_EVENTS is not set

embedded/imager/board/kernel_config_fragment_imager

@@ -0,0 +1,158 @@
+
+CONFIG_LOCALVERSION="-imager"
+CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
+
+# Enable DRM
+
+CONFIG_DRM=y
+CONFIG_SND=y
+CONFIG_SND_SOC=y
+CONFIG_DRM_V3D=y
+CONFIG_DRM_VC4=y
+
+# HID drivers
+
+CONFIG_HID_A4TECH=y
+CONFIG_HID_ACRUX=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EMS_FF=y
+CONFIG_HID_ELECOM=y
+CONFIG_HID_ELO=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_HOLTEK=y
+CONFIG_HID_KEYTOUCH=y
+CONFIG_HID_KYE=y
+CONFIG_HID_UCLOGIC=y
+CONFIG_HID_WALTOP=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_LCPOWER=y
+CONFIG_HID_LOGITECH=y
+CONFIG_HID_LOGITECH_DJ=y
+CONFIG_HID_LOGITECH_HIDPP=y
+CONFIG_HID_MAGICMOUSE=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_MULTITOUCH=y
+CONFIG_HID_NTRIG=y
+CONFIG_HID_ORTEK=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_I2C_BCM2708=y
+
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_TRIGGERS=y
+
+#
+# By default the defconfig likes to create some modules we do not need
+#
+
+CONFIG_BCM2835_SMI=n
+CONFIG_BCM2835_SMI_DEV=n
+CONFIG_TCP_CONG_WESTWOOD=n
+CONFIG_TCP_CONG_BIC=n
+CONFIG_TCP_CONG_HTCP=n
+CONFIG_NFS_FS=n
+CONFIG_IP_PNP=n
+CONFIG_MODULES=n
+
+#
+# Alternative USB driver
+# If used, you must also built the dwc2 overlay, 
+# and enable it in config.txt
+#
+
+CONFIG_USB_DWC2=y
+#CONFIG_USB_GADGET=y
+#CONFIG_USB_CONFIGFS=y
+#CONFIG_USB_CONFIGFS_SERIAL=y
+#CONFIG_USB_CONFIGFS_ACM=y
+#CONFIG_USB_CONFIGFS_ECM=y
+
+
+# Extra filessytems for using images from USB stick
+
+CONFIG_EXFAT_FS=y
+
+#
+# Trim down some more
+#
+CONFIG_CONFIGFS_FS=n
+CONFIG_F2FS_FS=n
+CONFIG_IPV6=n
+CONFIG_CRYPTO_CRC32=n
+CONFIG_CRYPTO_SHA1=n
+CONFIG_CRYPTO_SHA256=n
+CONFIG_CRYPTO_SHA512=n
+CONFIG_CRYPTO_AES=n
+CONFIG_CRYPTO_DES=n
+CONFIG_CRYPTO_LZO=n
+CONFIG_CRYPTO_HMAC=n
+CONFIG_CRYPTO_XTS=n
+CONFIG_CRYPTO_ECB=n
+CONFIG_CRYPTO_CTS=n
+CONFIG_CRYPTO_CBC=n
+CONFIG_CRYPTO_MANAGER=n
+CONFIG_XZ_DEC=n
+CONFIG_LIBCRC32C=n
+CONFIG_CRC_ITU_T=n
+CONFIG_DEBUG_BUGVERBOSE=n
+CONFIG_KGDB=n
+CONFIG_MAGIC_SYSRQ=n
+CONFIG_DEBUG_MISC=n
+CONFIG_DEBUG_MEMORY_INIT=n
+CONFIG_SCHED_DEBUG=n
+CONFIG_LATENCYTOP=n
+CONFIG_FTRACE=n
+CONFIG_DEBUG_FS=n
+
+
+CONFIG_NETFILTER=n
+CONFIG_NET_SCHED=n
+CONFIG_OF_CONFIGFS=n
+CONFIG_BLK_DEV_RAM=n
+CONFIG_USB_NET_DRIVERS=n
+CONFIG_BCM2835_DEVGPIOMEM=n
+CONFIG_FS_ENCRYPTION=n
+CONFIG_AUTOFS4_FS=n
+CONFIG_AUTOFS_FS=n
+CONFIG_FSCACHE=n
+CONFIG_SECURITY=n
+CONFIG_SECURITYFS=n
+
+
+CONFIG_SWAP=n
+CONFIG_CROSS_MEMORY_ATTACH=n
+CONFIG_GENERIC_IRQ_DEBUGFS=n
+CONFIG_BPF_SYSCALL=n
+CONFIG_BSD_PROCESS_ACCT=n
+CONFIG_TASKSTATS=n
+CONFIG_SCHED_AUTOGROUP=n
+CONFIG_CGROUPS=n
+CONFIG_NAMESPACES=n
+CONFIG_RD_GZIP=n
+CONFIG_RD_BZIP2=n
+CONFIG_RD_LZMA=n
+CONFIG_RD_XZ=n
+CONFIG_RD_LZO=n
+CONFIG_RD_LZ4=n
+CONFIG_PERF_EVENTS=n
+CONFIG_VM_EVENT_COUNTERS=n
+CONFIG_SLUB_DEBUG=n
+CONFIG_PROFILING=n
+CONFIG_BLK_DEBUG_FS=n
+CONFIG_RELAY=n
+CONFIG_AUDIT=n
+CONFIG_KALLSYMS=n
+
+
+

embedded/imager/board/overlay/etc/init.d/S99rpi-imager

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+#
+# Script executed at start
+#
+
+# Bail out on any error
+set -e
+
+case "$1" in
+  start)
+    #udevd --daemon
+    #udevadm trigger
+    if [ ! -e /dev/input/event0 ]; then
+        echo ""
+        echo "No input device detected"
+        echo "Remove micro-USB cable and attach mouse to continue"
+        echo ""
+        until [ -e /dev/input/event0 ]
+        do
+            sleep 0.1
+        done
+        clear
+    fi
+
+    echo Starting rpi-imager
+    export QT_QPA_EGLFS_ALWAYS_SET_MODE=1
+    PATH=/bin:/sbin:/usr/bin:/usr/sbin rpi-imager 2>/tmp/debug
+    sync
+    reboot -f
+    ;;
+
+  stop)
+    ;;
+  
+  *)
+    echo "Usage: $0 {start|stop}"
+    exit 1  
+    ;;
+esac
+
+exit $?

embedded/imager/board/overlay/init

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+# Shorter startup sequence
+
+# Standard busybox init
+/bin/mount -t proc proc /proc
+/bin/mount -o remount,rw,noatime / 
+/bin/mount -t sysfs sysfs /sys
+/bin/mount -t devtmpfs dev /dev
+/bin/hostname -F /etc/hostname
+
+# udev
+/sbin/udevd -d
+udevadm trigger
+udevadm settle --timeout=2
+
+# Seed urandom with something
+cat /proc/cpuinfo /sys/class/drm/*/edid > /dev/urandom
+
+# dhcpcd
+dhcpcd -f /etc/dhcpcd.conf --noarp 2>/dev/null &
+
+if grep -q debugconsole /proc/cmdline; then
+	/sbin/getty -L console 0 vt100 &
+fi
+
+if grep -q blockingconsole /proc/cmdline; then
+    /sbin/getty -L console 0 vt100
+fi
+
+/etc/init.d/S99rpi-imager start