内核移植的问题
本帖最后由 吾心蒲清 于 2012-10-8 16:19 编辑我在 Test Linux Image 出现这样的错误 请问怎么回事？
串口出现这样的信息：
ALSA device list:
No soundcards found.
TCP cubic registered
NET: Registered protocol family 17
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
s3c2410-rtc s3c2410-rtc: setting system clock to 2008-11-07 12:20:30 UTC (1226060430)
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.
s3c2440-sdi s3c2440-sdi: powered down.
VFS: Cannot open root device "mtdblock2" or unknown-block(2,0)
Please append a correct "root=" boot option; here are the available partitions:
1f00 262144 mtdblock0 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)
[<c002d71c>] (unwind_backtrace+0x0/0xdc) from [<c02a7b14>] (panic+0x40/0x110)
[<c02a7b14>] (panic+0x40/0x110) from [<c0008fcc>] (mount_block_root+0x1d0/0x210)
[<c0008fcc>] (mount_block_root+0x1d0/0x210) from [<c0009264>] (prepare_namespace+0x164/0x1bc)
[<c0009264>] (prepare_namespace+0x164/0x1bc) from [<c0008598>] (kernel_init+0xb4/0xe0)
[<c0008598>] (kernel_init+0xb4/0xe0) from [<c004a8bc>] (do_exit+0x0/0x578)
[<c004a8bc>] (do_exit+0x0/0x578) from [<00000001>] (0x1)
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.这个提示信息表明你是挂载的NFS文件系统，然后根据别的信息表示你的网卡似乎没有驱动上。
多看提示信息
TQ-lkp 发表于 2012-10-8 08:58 static/image/common/back.gif
Root-NFS: No NFS server available, giving up.
VFS: Unable to mount root fs via NFS, trying floppy.这 ...
也就是我的yaffs文件系统没有挂载上是不？ 这个问题先要按手册里面的make menuconfig 配置好内核 再者就是要注意在配置 BOOT options
在第三行的内容是 noinitdroot=/dev/mtdblock2 init=/linuxrc console=ttySAC0,115200 rootfstype=yaffs2 rw mem=64M 吾心蒲清 发表于 2012-10-8 16:18 static/image/common/back.gif
这个问题先要按手册里面的make menuconfig 配置好内核 再者就是要注意在配置 BOOT options
在第三行的内容 ...
启动参数是从u-boot传递过去的，你应该在u-boot那里设置，命令0-》2-》s（执行了就保存参数，不执行重新后就还是旧参数）-》q-》8
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