Hi, linux-nfs i have a question about NFS. say, i have three different machines, Machine-1 is a NFS Server who exported its directory "/home/pub" to Machine-2, which mounted "mount -t nfs Machine-1:/home/pub /mnt/pub/". i want Machine-2 to be a NFS Server which exports its directory "/mnt/pub" to Machine-3, permission denied when i execute "mount -t nfs Machine-2:/mnt/pub/ /mnt/" on Machine-3. ( btw : all the three machines are of linux 2.6.17-1, a little old kernel :-) ) i browsed the code of 2.6.17-1 and found check_export() in fs/nfsd/exports.c , who told me there are two reasons for that : /* There are two requirements on a filesystem to be exportable. * 1: We must be able to identify the filesystem from a number. * either a device number (so FS_REQUIRES_DEV needed) * or an FSID number (so NFSEXP_FSID needed). * 2: We must be able to find an inode from a filehandle. * This means that s_export_op must be set. */ i think if i set "/home/pub Machin-2(sync,root_squash,fsid=1)" and "/mnt/pub Machine-2(sync,root_squash,fsid=2)" individually in "/etc/exports" of Machine-1 and Machine-2, the requirement-1 will be meet. but nfs_fill_super() failed to register its s_export_op. why? i am puzzled. thank you for your suggestions and explanations. :-) Best Regards! lioupayphone -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
