063c641686
- desktop images have half the world in their initrd (plymouth?) - `bdinfo` shows reserved regions, which are hit depending on the size of initrd - when reserved region is hit, u-boot says `** Reading file would overwrite reserved memory **` - done by AI after looking at `bdinfo` reserved regions - hard lesson: all `0x` hex have to be double quoted, otherwise `Wrong image format for "source" command` - add note about Meco having conjured up `load_addr` (it's `loadaddr`); doesn't hurt - while at it, remove copypasta/duplicate bootlogo/consoleargs stanza
143 lines
6.0 KiB
Batchfile
143 lines
6.0 KiB
Batchfile
# DO NOT EDIT THIS FILE
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#
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# Please edit /boot/armbianEnv.txt to set supported parameters
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#
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setenv overlay_error "false"
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# default values
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setenv rootdev "LABEL=armbi_root"
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setenv verbosity "1"
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setenv console "both"
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setenv bootlogo "false"
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setenv rootfstype "ext4"
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setenv docker_optimizations "on"
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setenv earlycon "off"
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# U-Boot memory layout
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# ATTENTION: all hex references have to be quoted, even in comments, otherwise mkimage produces invalid .scr
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# Note: on arm64 must be 2mb aligned
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# Reserved areas:
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# low RAM "0x43200000" "0x43DFFFFF"
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# mid RAM "0x54600000" "0x547FFFFF"
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# mid RAM "0x60000000" "0x61FFFFFF"
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# Thus addresses using estimated max sizes
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# Script/load address (boot scripts, small)
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# "0x43000000" = 1,116,277,120 bytes = ~1 MB
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# Important: the u-boot standard is "loadaddr" (CONFIG_SYS_TEXT_BASE=="0x4c000000"), "not load_addr" - used specifically on below script
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setenv load_addr "0x43000000"
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# FDT address (device tree, small)
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# "0x56000000" = 1,436,207,360 bytes = ~2 MB
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setenv fdt_addr_r "0x56000000"
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# Kernel load address (100 MB)
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# "0x40000000" - "0x46400000"
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# 1,073,741,824 - 1,173,637,760 bytes = 100 MB
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setenv kernel_addr_r "0x40000000"
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# Initramfs load address (500 MB)
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# "0x64000000" - "0x83800000"
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# 1,677,721,600 - 2,177,441,600 bytes = 500 MB
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# Positioned in high RAM to avoid reserved hole
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setenv ramdisk_addr_r "0x64000000"
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test -n "${distro_bootpart}" || distro_bootpart=1
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echo "Boot script loaded from ${devtype} ${devnum}:${distro_bootpart}"
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# get PARTUUID of first partition on SD/eMMC/UFS the boot script was loaded from
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echo "Detecting PARTUUID for ${devtype} device ${devnum}:${distro_bootpart}..."
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# Explicitly clear partuuid as U-Boot variables set by functions or used in loops may not behave as expected
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setenv partuuid
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if test "${devtype}" = "mmc" || test "${devtype}" = "scsi" || test "${devtype}" = "usb"; then
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part uuid ${devtype} ${devnum}:${distro_bootpart} partuuid
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fi
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# Use PARTUUID if available (more reliable), otherwise fall back to rootdev label
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if test -n "${partuuid}"; then
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setenv rootdev "PARTUUID=${partuuid}"
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fi
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# Load armbianEnv.txt if it exists - using direct load instead of test -e for better compatibility
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# This happens AFTER PARTUUID detection so user can override rootdev if needed
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echo "Attempting to load ${prefix}armbianEnv.txt from ${devtype} ${devnum}:${distro_bootpart} to ${load_addr}..."
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if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}armbianEnv.txt; then
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echo "Successfully loaded armbianEnv.txt (${filesize} bytes)"
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if env import -t ${load_addr} ${filesize}; then
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echo "Successfully imported environment from armbianEnv.txt"
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else
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echo "Warning: Failed to import environment from armbianEnv.txt"
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fi
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else
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echo "armbianEnv.txt not found or failed to load - using default environment"
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fi
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echo "Final rootdev: ${rootdev}"
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if test "${console}" = "display" || test "${console}" = "both"; then setenv consoleargs "console=tty1"; fi
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if test "${console}" = "serial" || test "${console}" = "both"; then setenv consoleargs "console=ttyS0,921600 ${consoleargs}"; fi
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if test "${earlycon}" = "on"; then setenv consoleargs "earlycon ${consoleargs}"; fi
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if test "${bootlogo}" = "true"; then
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setenv consoleargs "splash plymouth.ignore-serial-consoles ${consoleargs}"
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else
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setenv consoleargs "splash=verbose ${consoleargs}"
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fi
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setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
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if test "${docker_optimizations}" = "on"; then setenv bootargs "${bootargs} cgroup_enable=cpuset cgroup_memory=1 cgroup_enable=memory"; fi
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echo "Final bootargs: ${bootargs}"
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echo "Loading kernel image to ${kernel_addr_r}..."
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load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} ${prefix}Image
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echo "Loading initramfs to ${ramdisk_addr_r}..."
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load ${devtype} ${devnum}:${distro_bootpart} ${ramdisk_addr_r} ${prefix}uInitrd
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echo "Loading device tree ${fdtfile} to ${fdt_addr_r}..."
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load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
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fdt addr ${fdt_addr_r}
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fdt resize 65536
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for overlay_file in ${overlays}; do
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if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-${overlay_file}.dtbo; then
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echo "Applying kernel provided DT overlay ${overlay_prefix}-${overlay_file}.dtbo"
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fdt apply ${load_addr} || setenv overlay_error "true"
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elif load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_file}.dtbo; then
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echo "Applying kernel provided DT overlay ${overlay_file}.dtbo"
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fdt apply ${load_addr} || setenv overlay_error "true"
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fi
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done
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for overlay_file in ${user_overlays}; do
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if load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}overlay-user/${overlay_file}.dtbo; then
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echo "Applying user provided DT overlay ${overlay_file}.dtbo"
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fdt apply ${load_addr} || setenv overlay_error "true"
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fi
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done
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if test "${overlay_error}" = "true"; then
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echo "Error applying DT overlays, restoring original DT"
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load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
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else
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if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-fixup.scr; then
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load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}dtb/mediatek/overlay/${overlay_prefix}-fixup.scr
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echo "Applying kernel provided DT fixup script (${overlay_prefix}-fixup.scr)"
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source ${load_addr}
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fi
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if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}fixup.scr; then
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load ${devtype} ${devnum}:${distro_bootpart} ${load_addr} ${prefix}fixup.scr
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echo "Applying user provided fixup script (fixup.scr)"
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source ${load_addr}
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fi
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fi
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# Resize the fdt to the actual size of the final dtb
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fdt resize
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echo "Booting kernel from ${kernel_addr_r} with initramfs at ${ramdisk_addr_r} and DTB at ${fdt_addr_r}..."
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booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
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# Recompile with:
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# mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
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