Question

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When nfs mounting from a Linux NFS server, customer gets the following
error:
vmount: operation not permited

Answer

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Environment AIX versions 4.x and 5.x Sometimes Linux NFS servers will do port checking and require that the NFS client use a reserved port.

nfso -o nfs_use_reserved_ports=1

If the mount is going to be permanent, then the change needs to survive across a reboot. The nfs option must be changed permanently. On AIX 4.x and 5.1, the command above should be added to the startup scripts (possibly /etc/rc.nfs). On AIX 5.2 and above, the change can be made permanent by adding the -p flag.

nfso -p -o nfs_use_reserved_ports=1

实际运用：

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# mount -o rw,bg,hard,rsize=32768,wsize=32768,vers=3,cio,intr,timeo=600,proto=tcp 172.168.1.198:/volume1/newb2bi_backup /nfs_backup

mount: 1831-008 giving up on:

172.168.1.198:/volume1/newb2bi_backup

vmount: Operation not permitted.

# nfso -p -o nfs_use_reserved_ports=1

正在将 nfs_use_reserved_ports 设置为 1

正在 nextboot 文件中将 nfs_use_reserved_ports 设置为 1

# mount -o rw,bg,hard,rsize=32768,wsize=32768,vers=3,cio,intr,timeo=600,proto=tcp 172.168.1.198:/volume1/newb2bi_backup /nfs_backup

成功！

ITPub博客

aix mount "vmount: Operation not permitted." Error From NAS NFS

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