VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2)
Please append a correct "root=" boot option; here are the available partitions:
b300 1943552 mmcblk0 driver: mmcblk
b301 72261 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1
b302 907672 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2
Kernel panic – not syncing: VFS: Unable to mount root fs on unknown-block(179,2)
Backtrace:[<80049b7c>] (dump_backtrace+0x0/0x10c) from [<8039b3b8>] (dump_stack+0x18/0x1c)
r7:8c814000 r6:80070008 r5:8002df94 r4:805212d0
[<8039b3a0>] (dump_stack+0x0/0x1c) from [<8039b41c>] (panic+0x60/0x17c)
[<8039b3bc>] (panic+0x0/0x17c) from [<80009254>] (mount_block_root+0x1e0/0x220)
r3:00000000 r2:00000000 r1:8c82bf58 r0:8045942c
[<80009074>] (mount_block_root+0x0/0x220) from [<80009340>] (mount_root+0xac/0xcc)
[<80009294>] (mount_root+0x0/0xcc) from [<800094d0>] (prepare_namespace+0x170/0x1d4)
r4:80520b24
[<80009360>] (prepare_namespace+0x0/0x1d4) from [<80008784>] (kernel_init+0x114/0x154)
r5:80008670 r4:80520ac0
[<80008670>] (kernel_init+0x0/0x154) from [<80070008>] (do_exit+0x0/0x5e4)
r5:80008670 r4:00000000
kooking:
把u-boot配置参数发得看一下,不能打开mmcblk0p2,有可能是分区格式不对,也有可能打开了只读
xiaoqing shi:
回复 kooking:
Jian Feng1:
回复 xiaoqing shi:
SD卡能是UBIFS?
应该是ext3 或者ext4吧