- Ask a related questionWhat is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
Tool/software: Linux
Hi, I working on our custom board with am3352, trying boot from nand-flash, now boot into kernel, but cannot mount ubifs,
here is the log:
[ 1.428697] cpu cpu0: cpu0 clock notifier not ready, retry [ 1.435119] UBI error: cannot open mtd 9, error -19 [ 1.440093] hctosys: unable to open rtc device (rtc0) [ 1.454009] lis3_reg: disabling [ 1.457378] vbat: disabling [ 1.462269] UBIFS error (pid: 1): cannot open "ubi0:rootfs", error -19VFS: Cannot open root device "ubi0:rootfs" or unknown-block(0,0): error -19 [ 1.475672] Please append a correct "root=" boot option; here are the available partitions: [ 1.484212] 0100 8096 ram0 (driver?) [ 1.488985] 0101 8096 ram1 (driver?) [ 1.493654] 0102 8096 ram2 (driver?) [ 1.498371] 0103 8096 ram3 (driver?) [ 1.503039] 0104 8096 ram4 (driver?) [ 1.507749] 0105 8096 ram5 (driver?) [ 1.512417] 0106 8096 ram6 (driver?) [ 1.517121] 0107 8096 ram7 (driver?) [ 1.521791] 0108 8096 ram8 (driver?) [ 1.526455] 0109 8096 ram9 (driver?) [ 1.531161] 010a 8096 ram10 (driver?) [ 1.535917] 010b 8096 ram11 (driver?) [ 1.540710] 010c 8096 ram12 (driver?) [ 1.545466] 010d 8096 ram13 (driver?) [ 1.550262] 010e 8096 ram14 (driver?) [ 1.555016] 010f 8096 ram15 (driver?) [ 1.559822] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) [ 1.568158] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
My partition in u-boot is
#: name size offset mask_flags
0: NAND.SPL 0x00020000 0x00000000 0
1: NAND.SPL.backup1 0x00020000 0x00020000 0
2: NAND.SPL.backup2 0x00020000 0x00040000 0
3: NAND.SPL.backup3 0x00020000 0x00060000 0
4: NAND.u-boot-spl-os 0x00040000 0x00080000 0
5: NAND.u-boot 0x00100000 0x000c0000 0
6: NAND.u-boot-env 0x00020000 0x001c0000 0
7: NAND.u-boot-env.backup1 0x00020000 0x001e0000 0
8: NAND.kernel 0x00800000 0x00200000 0
9: NAND.file-system 0x07600000 0x00a00000 0
My bootcmd is :
'console=ttyO0,115200n8 noinitrd ip=off mem=256M rootwait=1 rw ubi.mtd=9,2048 rootfstype=ubifs root=ubi0:rootfs init=/init'
The ubifs build-tool is the srcipt in SDK/bin/create-ubifs.sh
I follow this step:
1. go into u-boot
2. Get the custom ubifs via tftp: # tftp xxx.ubifs
3. create ubi: # ubi part NAND.file-system && ubi create NAND.file-system
4. # ubi write 0x82000000 0xa00000 $(ubifs_size)
5. # boot
Could you guys help me?
