수년 동안 NAS에서 Debian을 실행했습니다. linux-image-kirkwood/linux-image-kernel이 포함된 바닐라 데비안. 부트로더는 u-boot입니다.
Debian Stretch(4.9.0-11-marvell)에서는 문제가 없었습니다. u-boot는 매개변수를 mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),-(root)Linux에 전달했고, Linux는 이를 사용하여 NAND를 매핑하고 세 번째 파티션을 /bootubif로 마운트할 수 있었습니다.
이제 Buster(커널 4.19.0-6-marvell)로 업그레이드했으므로 Linux는 mtdparts 매개변수를 무시하는 것 같습니다. 정상적으로 전달됩니다.
# dmesg|grep mtdparts
[ 0.000000] Kernel command line: console=ttyS0,115200 ubi.mtd=2 mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),-(root) root=/dev/sda rootflags=device=/dev/sda,device=/dev/sdb,defaults,noatime rootfstype=btrfs
… 그러나 다른 레이아웃을 선호하여 어떤 이유로 무시된 것 같습니다(기본값 ?).
# cat /proc/mtd
dev: size erasesize name
mtd0: 00100000 00020000 "u-boot"
mtd1: 00500000 00020000 "uImage"
mtd2: 00500000 00020000 "ramdisk"
mtd3: 06600000 00020000 "image"
mtd4: 00a00000 00020000 "mini firmware"
mtd5: 00500000 00020000 "config"
u-boot를 업그레이드하지 않았습니다.
u-boot 측의 관련 정보는 다음과 같습니다.
=> printenv
autoload=no
baudrate=115200
boot_fdt=no
bootcmd=setenv bootargs console=${console} ${optargs} ${mtdparts} ${root_hdd} ; run load_ubifs ; bootm 0x1000000 0x1200000 0x0900000
bootdelay=3
bootenv=uEnv.txt
console=ttyS0,115200
ethact=egiga0
ethaddr=00:50:43:XX:XX:XX
filesize=8936df
importbootenv=echo Importing environment ...; env import -t ${loadaddr} ${filesize}
load_ubifs=ubi part root ; ubifsmount ubi:rootfs ; ubifsload 0x0900000 /kirkwood-dns325.dtb ; ubifsload 0x1000000 /uImage ; ubifsload 0x1200000 /uInitrd
loadaddr=0x800000
loadbootenv=fatload usb 0 ${loadaddr} ${bootenv}
mtddevname=u-boot
mtddevnum=0
mtdids=nand0=orion_nand
mtdparts=mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),-(root)
nandloadimage=nand read ${loadaddr} kernel
nandroot=ubi0:rootfs ubi.mtd=rootfs
nandrootfstype=ubifs
optargs=ubi.mtd=2
partition=nand0,0
root_flash=ubi.mtd=root root=ubi0:rootfs rootfstype=ubifs
root_hdd=root=/dev/sda rootflags=device=/dev/sda,device=/dev/sdb,defaults,noatime rootfstype=btrfs
setbootargs=setenv bootargs console=${console} ${optargs} ${mtdparts} root=${bootenvroot} rootfstype=${bootenvrootfstype}
setnandbootenv=echo Booting from nand ...; setenv bootenvroot ${nandroot}; setenv bootenvrootfstype ${nandrootfstype}; setenv bootenvloadimage ${nandloadimage}
stderr=serial
stdin=serial
stdout=serial
subbootcmd=run setbootargs; if run bootenvloadimage; then bootm ${loadaddr};fi;
=> mtdparts
device nand0 <orion_nand>, # parts = 3
#: name size offset mask_flags
0: u-boot 0x000e0000 0x00000000 0
1: u-boot-env 0x00020000 0x000e0000 0
2: root 0x07f00000 0x00100000 0
active partition: nand0,0 - (u-boot) 0x000e0000 @ 0x00000000
defaults:
mtdids : nand0=orion_nand
mtdparts: mtdparts=orion_nand:896k(u-boot),128k(u-boot-env),5m(kernel),-(rootfs)
=> version
U-Boot 2014.01 (Jan 21 2014 - 18:35:47)
D-Link DNS-325
arm-none-eabi-gcc (Sourcery CodeBench Lite 2013.05-23) 4.7.3
GNU ld (Sourcery CodeBench Lite 2013.05-23) 2.23.52.20130219
부팅하는 동안 Linux로 전달하기 직전에 다음을 수행합니다.
UBI: available PEBs: 0
UBI: total number of reserved PEBs: 1012
UBI: number of PEBs reserved for bad PEB handling: 10
UBI: max/mean erase counter: 13/7
UBIFS: mounted UBI device 0, volume 0, name "rootfs"
UBIFS: mounted read-only
UBIFS: file system size: 127346688 bytes (124362 KiB, 121 MiB, 987 LEBs)
UBIFS: journal size: 9033728 bytes (8822 KiB, 8 MiB, 71 LEBs)
UBIFS: media format: w4/r0 (latest is w4/r0)
UBIFS: default compressor: zlib
UBIFS: reserved for root: 0 bytes (0 KiB)
Loading file '/kirkwood-dns325.dtb' to addr 0x00900000 with size 12863 (0x0000323f)...
Done
Loading file '/uImage' to addr 0x01000000 with size 2045912 (0x001f37d8)...
Done
어떤 아이디어?
답변1
마침내 해결책을 찾았습니다. 최신 데비안에는 관련 버그가 있습니다:https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=931852
옵션 은 (적어도 데비안에서는) mtdparts되었습니다 .cmdlinepart.mtdparts
따라서 u-boot 프롬프트에서 다음을 실행하면 문제가 해결됩니다.
setenv bootcmd 'setenv bootargs console=${console} ${optargs} cmdlinepart.${mtdparts} ${root_hdd} ; run load_ubifs ; bootm 0x1000000 0x1200000 0x0900000'
saveenv
boot