NFS挂载rootfs失败的一个解决方法

江上如此多娇

在设置自己的ipaddr时是我们自己找的地址，但是在uboot 的命令窗口，使用dhcp时，发现ip地址又是另一个地址，所以导致rootfs挂载不成功，直接将环境变量ipaddr换成dhcp的地址，然后再按照左神教程中的操作进行就行。

/* 成功的例子 */
random: nonblocking pool is initialized
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 2, nr 6, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 2
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 3, nr 5, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 3
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 4, nr 4, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 4
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 5, nr 3, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 5
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 6, nr 2, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 6
mmc0: Timeout waiting for hardware interrupt.
mmcblk0: error -110 transferring data, sector 7, nr 1, cmd response 0x900, card status 0x0
blk_update_request: I/O error, dev mmcblk0, sector 7
Buffer I/O error on dev mmcblk0, logical block 0, async page read
mmcblk0: unable to read partition table
mmc1: MAN_BKOPS_EN bit is not set
mmc1: new HS200 MMC card at address 0001
mmcblk1: mmc1:0001 8GTF4R 7.28 GiB
VFS: Mounted root (nfs filesystem) on device 0:15.
mmcblk1boot0: mmc1:0001 8GTF4R partition 1 4.00 MiB
devtmpfs: mounted
Freeing unused kernel memory: 400K (8090e000 - 80972000)
mmcblk1boot1: mmc1:0001 8GTF4R partition 2 4.00 MiB
mmcblk1rpmb: mmc1:0001 8GTF4R partition 3 512 KiB
mmcblk1: p1 p2
can't run '/etc/init.d/rcS': No such file or directory

Please press Enter to activate this console.
/ # ls
bin      lib      mnt      root     sys      usr
dev      linuxrc  proc     sbin     tmp
/ #