Hi!
I read the comment with the above content, and I became curious about how to boot webOS using USB instead of a micro SD card. I tried using Etcher to install it on a USB, just like when using an SD card, but it failed. Is there any additional step that needs to be done here?
Wow! I became curious too! I checked both cmdline.txt and config.txt, but I still don't know how to flash webOSOSE with USB. I'll try moving Root File System from SD Card.
Give me several hour. -> Sorry ill try on this weekend.
Today, I tried again and again, but unfortunately, I failed.
First, in the RaspberrypiOS (64bit) environment, I updated the EEPROM and activated USB booting in raspi-config.
Next, I flashed webOSOSE to the SD card and established an SSH connection (using MobaXterm).
Through the "blkid" command, I identified the partition numbers (root was 2. And boot was 1) and PARTUUID of the boot and root partitions. I saw that the USB was recognized as "sda" when connected.
Finally, I modified cmdline.txt(flashed to USB) to:
"dwc_otg.lpm_enable=0 console=serial0,115200 root=/dev/sda2 rootfstype=ext4 rootwait"
I also changed "mmc" to "usb" in uEnv.txt:
From:
bootcmd_args=setenv bootargs "$bootargs $bootargs_fdt root=/dev/mmcblk0p$active_part_id ro rootflags=noload"
To:
bootcmd_args=setenv bootargs "$bootargs $bootargs_fdt root=/dev/sda$active_part_id ro rootflags=noload"
I gonna use Serial Communication to debug next time.
Thank you for looking into what I was curious about. It has been very helpful to me.
If time allows, I will solve this problem.
A better-performing storage will bring a better-performing OS... maybe?
idk if this logs have meaningful data, but let me post.
U-Boot> printenv
arch=arm
baudrate=115200
board=rpi
board_name=4 Model B
board_rev=0x11
board_rev_scheme=1
board_revision=0xD03115
boot_a_script=load ${devtype} ${devnum}:${distro_bootpart} ${scriptaddr} ${prefix}${script}; source ${scriptaddr}
boot_efi_binary=load ${devtype} ${devnum}:${distro_bootpart} ${kernel_addr_r} efi/boot/bootaa64.efi; if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r};else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi
boot_efi_bootmgr=if fdt addr ${fdt_addr_r}; then bootefi bootmgr ${fdt_addr_r};else bootefi bootmgr;fi
boot_extlinux=sysboot ${devtype} ${devnum}:${distro_bootpart} any ${scriptaddr} ${prefix}${boot_syslinux_conf}
boot_net_usb_start=usb start
boot_pci_enum=pci enum
boot_prefixes=/ /boot/
boot_script_dhcp=boot.scr.uimg
boot_scripts=boot.scr.uimg boot.scr
boot_syslinux_conf=extlinux/extlinux.conf
boot_targets=mmc0 mmc1 mmc2 usb0 pxe dhcp
bootcmd=run distro_bootcmd
bootcmd_dhcp=devtype=dhcp; run boot_net_usb_start; run boot_pci_enum; if dhcp ${scriptaddr} ${boot_script_dhcp}; then source ${scriptaddr}; fi;setenv efi_fdtfile ${fdtfile}; setenv efi_old_vci ${bootp_vci};setenv efi_old_arch ${bootp_arch};setenv bootp_vci PXEClient:Arch:00011:UNDI:003000;setenv bootp_arch 0xb;if dhcp ${kernel_addr_r}; then tftpboot ${fdt_addr_r} dtb/${efi_fdtfile};if fdt addr ${fdt_addr_r}; then bootefi ${kernel_addr_r} ${fdt_addr_r}; else bootefi ${kernel_addr_r} ${fdtcontroladdr};fi;fi;setenv bootp_vci ${efi_old_vci};setenv bootp_arch ${efi_old_arch};setenv efi_fdtfile;setenv efi_old_arch;setenv efi_old_vci;
bootcmd_mmc0=devnum=0; run mmc_boot
bootcmd_mmc1=devnum=1; run mmc_boot
bootcmd_mmc2=devnum=2; run mmc_boot
bootcmd_pxe=run boot_net_usb_start; run boot_pci_enum; dhcp; if pxe get; then pxe boot; fi
bootcmd_usb0=devnum=0; run usb_boot
bootcount=1
bootdelay=0
cpu=armv8
dhcpuboot=usb start; dhcp u-boot.uimg; bootm
distro_bootcmd=for target in ${boot_targets}; do run bootcmd_${target}; done
efi_dtb_prefixes=/ /dtb/ /dtb/current/
ethact=ethernet@7d580000
ethaddr=e4:5f:01:90:90:d0
fdt_addr=2d2e2c00
fdt_addr_r=0x02600000
fdt_high=ffffffffffffffff
fdtcontroladdr=2cc43990
fdtfile=broadcom/bcm2711-rpi-4-b.dtb
initrd_high=ffffffffffffffff
kernel_addr_r=0x00080000
load_efi_dtb=load ${devtype} ${devnum}:${distro_bootpart} ${fdt_addr_r} ${prefix}${efi_fdtfile}
loadaddr=0x1000000
mmc_boot=if mmc dev ${devnum}; then devtype=mmc; run scan_dev_for_boot_part; fi
pxefile_addr_r=0x02500000
ramdisk_addr_r=0x02700000
scan_dev_for_boot=echo Scanning ${devtype} ${devnum}:${distro_bootpart}...; for prefix in ${boot_prefixes}; do run scan_dev_for_extlinux; run scan_dev_for_scripts; done;run scan_dev_for_efi;
scan_dev_for_boot_part=part list ${devtype} ${devnum} -bootable devplist; env exists devplist || setenv devplist 1; for distro_bootpart in ${devplist}; do if fstype ${devtype} ${devnum}:${distro_bootpart} bootfstype; then run scan_dev_for_boot; fi; done; setenv devplist
scan_dev_for_efi=setenv efi_fdtfile ${fdtfile}; for prefix in ${efi_dtb_prefixes}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${efi_fdtfile}; then run load_efi_dtb; fi;done;run boot_efi_bootmgr;if test -e ${devtype} ${devnum}:${distro_bootpart} efi/boot/bootaa64.efi; then echo Found EFI removable media binary efi/boot/bootaa64.efi; run boot_efi_binary; echo EFI LOAD FAILED: continuing...; fi; setenv efi_fdtfile
scan_dev_for_extlinux=if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${boot_syslinux_conf}; then echo Found ${prefix}${boot_syslinux_conf}; run boot_extlinux; echo SCRIPT FAILED: continuing...; fi
scan_dev_for_scripts=for script in ${boot_scripts}; do if test -e ${devtype} ${devnum}:${distro_bootpart} ${prefix}${script}; then echo Found U-Boot script ${prefix}${script}; run boot_a_script; echo SCRIPT FAILED: continuing...; fi; done
scriptaddr=0x02400000
serial#=10000000488ebf45
soc=bcm283x
stderr=serial
stdin=serial
stdout=serial
usb_boot=usb start; if usb dev ${devnum}; then devtype=usb; run scan_dev_for_boot_part; fi
usbethaddr=e4:5f:01:90:90:d0
vendor=raspberrypi
Environment size: 4050/16380 bytes
i think i need to learn how to use u-boot first.
cuz i found some interesting posts... like
.U-boot USB boot - embeddedTS Manuals
.Yocto에 OSTree upgrade 적용(2) - 부팅 절차 - All about IoT
.The U-Boot Documentation — Das U-Boot unknown version documentation
And, last weekend, i made my own environment for watching how does it work.
