编译新内核出错！！！

FAT: unable to read boot sector
VFS: Cannot open root device "mtdblock2" or unknown-block(31,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00              16 mtdblock0 (driver?)
1f01            2048 mtdblock1 (driver?)
1f02            4096 mtdblock2 (driver?)
1f03            2048 mtdblock3 (driver?)
1f04            4096 mtdblock4 (driver?)
1f05           10240 mtdblock5 (driver?)
1f06           24576 mtdblock6 (driver?)
1f07           16384 mtdblock7 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,2)
Backtrace:
[<c00309cc>] (dump_backtrace+0x0/0x104) from [<c0030ae8>] (dump_stack+0x18/0x1c)

r7:c388a000 r6:c388a02a r5:00000000 r4:c381bf5c
[<c0030ad0>] (dump_stack+0x0/0x1c) from [<c004db24>] (panic+0x3c/0x124)
[<c004dae8>] (panic+0x0/0x124) from [<c0009044>] (mount_block_root+0x1d8/0x21c)
r3:00000000 r2:20000013 r1:c381bf5c r0:c037980c
[<c0008e6c>] (mount_block_root+0x0/0x21c) from [<c0009254>] (mount_root+0xd0/0xf
0)
[<c0009184>] (mount_root+0x0/0xf0) from [<c00093e4>] (prepare_namespace+0x170/0x
1d0)
r6:00000000 r5:c0026a0c r4:c03faf54
[<c0009274>] (prepare_namespace+0x0/0x1d0) from [<c0008c1c>] (kernel_init+0xd8/0
x10c)
r5:c0025f98 r4:c03fad38
[<c0008b44>] (kernel_init+0x0/0x10c) from [<c0050330>] (do_exit+0x0/0x5a4)
r5:00000000 r4:00000000
到这里就不动了啊

检查内核中是否添加了对yaffs文件系统的支持。

2# 亚瑟王


谢谢亚瑟王的回复！！！我添加了支持，我现在移植的是2.6.33，是sky2440 64M的板子，现在出现下面的问题：
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
attempt to access beyond end of device
mtdblock2: rw=0, want=8193, limit=8192
attempt to access beyond end of device
mtdblock2: rw=0, want=8196, limit=8192
UDF-fs: No partition found (1)
yaffs: dev is 32505858 name is "mtdblock2"
yaffs: passed flags ""
yaffs: Attempting MTD mount on 31.2, "mtdblock2"
yaffs_read_super: isCheckpointed 0
VFS: Mounted root (yaffs filesystem) on device 31:2.
Freeing init memory: 116K
Warning: unable to open an initial console.
Failed to execute /linuxrc.  Attempting defaults...
Kernel panic - not syncing: No init found.  Try passing init= option to kernel.
Backtrace:
[<c00299d0>] (dump_backtrace+0x0/0x12c) from [<c0029b14>] (dump_stack+0x18/0x1c)

r7:00000000 r6:c001e630 r5:c001e9c8 r4:c03a8c74
[<c0029afc>] (dump_stack+0x0/0x1c) from [<c00371d4>] (panic+0x3c/0x128)
[<c0037198>] (panic+0x0/0x128) from [<c00255b0>] (init_post+0xac/0x11c)
r3:c3823ee8 r2:00000000 r1:c044d6c0 r0:c0334930
[<c0025504>] (init_post+0x0/0x11c) from [<c0008a78>] (kernel_init+0xf0/0x120)
r4:c03a8c78
[<c0008988>] (kernel_init+0x0/0x120) from [<c0039aa4>] (do_exit+0x0/0x628)
r6:00000000 r5:00000000 r4:00000000

检查一下你的配置单，参考TQ2440的30.4的配置单配置，特别是general setup选项。