内核使用nfs启动文件系统时服务器ip是怎么设置的?

quanguoheme

如下所示:我使用的是192.1683.0.46作为服务器,内核通过nfs挂载文件系统成功了,, 但是我现在想换个服务器ip,
请问各位有什么思路没有啊?
我想在的思路是:修改内核.config文件的COMFIG_CMDLINE 为root=/dev/nfs  rw  nfsroot=192.168.0.2:/home/hgj/task/rootfs
ip=192.168.0.45  
但是失败了, 内核挂载文件系统失败,还是去原来的ip(192.168.0.46)挂载文件系统.

IP-Config: Complete:
     device=eth0, addr=192.168.0.45, mask=255.255.255.0, gw=192.168.0.46,
     host=sbc2440, domain=, nis-domain=arm9.net,
     bootserver=192.168.0.46, rootserver=192.168.0.46, rootpath=
Looking up port of RPC 100003/2 on 192.168.0.46
eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
Looking up port of RPC 100005/1 on 192.168.0.46
nfs: server 192.168.0.46 not responding, still trying
nfs: server 192.168.0.46 OK
VFS: Mounted root (nfs filesystem) on device 0:11.
Freeing init memory: 160K
Warning: unable to open an initial console.
[20/Dec/2021:13:52:53 +0000] boa: server version Boa/0.94.13
[20/Dec/2021:13:52:53 +0000] boa: server built Mar 26 2009 at 15:28:42.
[20/Dec/2021:13:52:53 +0000] boa: starting server pid=699, port 80
Try to bring eth0 interface up......NFS root ...Done
Looking up port of RPC 100005/1 on 192.168.0.46
Root-NFS: Server returned error -2 while mounting /home/hgj/rootfs
VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0)
Please append a correct "root=" boot option; here are the available partitions:
1f00             384 mtdblock0 (driver?)
1f01            2048 mtdblock1 (driver?)
1f02           63104 mtdblock2 (driver?)
1f03           65536 mtdblock3 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

xdsupermanli

一般是是bootloader里修改。

nevermore4030

如果bootloader使用的是uboot，修改bootargs。。回复 1# quanguoheme