4ce8c03b5b
when there are some reasons which board failed to boot, eg rootfs crashes.
/init will fail to panic().
panic()
{
local console rest IFS
if command -v chvt >/dev/null 2>&1; then
chvt 1
fi
echo "$@"
# Disallow console access
if [ -n "${panic?}" ]; then
echo "Rebooting automatically due to panic= boot argument"
sleep "${panic}"
reboot
exit # in case reboot fails, force kernel panic
fi
...
}
when panic is set, there is no chance to fail into a shell, to debug what happens.
and device just keep reboot.
remove panic from bootargs to make it possible for users to find out why their boards fail to boot.
Signed-off-by: Zhang Ning <832666+zhangn1985@users.noreply.github.com>
91 lines
3.6 KiB
Batchfile
91 lines
3.6 KiB
Batchfile
# DO NOT EDIT THIS FILE
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#
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# Please edit /boot/armbianEnv.txt to set supported parameters
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#
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setenv load_addr "0x44000000"
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setenv overlay_error "false"
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# default values
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setenv verbosity "1"
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setenv console "both"
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setenv disp_mem_reserves "off"
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setenv disp_mode "1920x1080p60"
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setenv rootfstype "ext4"
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setenv docker_optimizations "on"
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setenv devnum "0"
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setenv rootdev "/dev/mmcblk${devnum}p1"
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# Print boot source
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itest.b *0x28 == 0x00 && echo "U-boot loaded from SD"
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itest.b *0x28 == 0x02 && echo "U-boot loaded from eMMC or secondary SD"
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itest.b *0x28 == 0x03 && echo "U-boot loaded from SPI"
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# get PARTUUID of first partition on SD/eMMC it was loaded from
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# mmc 0 is always mapped to device u-boot (2016.09+) was loaded from
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if test "${devtype}" = "mmc"; then
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part uuid mmc ${devnum}:1 partuuid;
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setenv devnum ${mmc_bootdev}
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setenv rootdev "/dev/mmcblk${mmc_bootdev}p1"
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fi
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echo "Boot script loaded from ${devtype}"
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if test -e ${devtype} ${devnum} ${prefix}armbianEnv.txt; then
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load ${devtype} ${devnum} ${load_addr} ${prefix}armbianEnv.txt
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env import -t ${load_addr} ${filesize}
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fi
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if test "${logo}" = "disabled"; then setenv logo "logo.nologo"; fi
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if test "${console}" = "display" || test "${console}" = "both"; then setenv consoleargs "console=ttyS0,115200 console=tty1"; fi
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if test "${console}" = "serial"; then setenv consoleargs "console=ttyS0,115200"; fi
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setenv bootargs "root=${rootdev} rootwait rootfstype=${rootfstype} ${consoleargs} hdmi.audio=EDID:0 disp.screen0_output_mode=${disp_mode} consoleblank=0 loglevel=${verbosity} ubootpart=${partuuid} ubootsource=${devtype} usb-storage.quirks=${usbstoragequirks} ${extraargs} ${extraboardargs}"
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if test "${disp_mem_reserves}" = "off"; then setenv bootargs "${bootargs} sunxi_ve_mem_reserve=0 sunxi_g2d_mem_reserve=0 sunxi_fb_mem_reserve=16"; fi
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if test "${docker_optimizations}" = "on"; then setenv bootargs "${bootargs} cgroup_enable=memory swapaccount=1"; fi
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load ${devtype} ${devnum} ${ramdisk_addr_r} ${prefix}uInitrd
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load ${devtype} ${devnum} ${kernel_addr_r} ${prefix}zImage
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if test -e ${devtype} ${devnum} "${prefix}.next"; then
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echo "Found mainline kernel configuration"
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load ${devtype} ${devnum} ${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} ${load_addr} ${prefix}dtb/overlay/${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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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} ${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} ${fdt_addr_r} ${prefix}dtb/${fdtfile}
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else
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if load ${devtype} ${devnum} ${load_addr} ${prefix}dtb/overlay/${overlay_prefix}-fixup.scr; then
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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} ${prefix}fixup.scr; then
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load ${devtype} ${devnum} ${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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bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
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else
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echo "Found legacy kernel configuration"
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load ${devtype} ${devnum} ${fdt_addr_r} ${prefix}script.bin
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bootz ${kernel_addr_r} ${ramdisk_addr_r}
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fi
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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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