retrans=# Sets the number of minor retransmission (Web server on xp)
retrans=# Sets the number of minor retransmission timeouts that occur before a major timeout. When a major timeout occurs, the process is either aborted (soft mount) or a Server Not Responding message appears on your console. retry=# Sets how many minutes to continue to retry failed mount requests, where # is replaced by the number of minutes to retry. The default is 10,000 minutes (which is about one week). bg If the first mount attempt times out, try all subsequent mounts in the background. This option is very valuable if you are mounting a slow or sporadically available NFS file system. By placing mount requests in the background, Red Hat Linux can continue to mount other file systems instead of waiting for the current one to complete. Note If a nested mount point is missing, a timeout to allow for the needed mount point to be added occurs. For example, if you mount /usr/trip and /usr/trip/extra as NFS file systems, if /usr/trip is not yet mounted when /usr/trip/extra tries to mount, /usr/trip/extra will time out. Hopefully, /usr/trip will come up and /usr/trip/extra will mount on the next retry. fg If the first mount attempt times out, try subsequent mounts in the foreground. This is the default behavior. Use this option if it is imperative that the mount be successful before continuing (for example, if you were mounting /usr). Any of the values that don t require a value can have no appended to it to have the opposite effect. For example, nobg indicates that the mount should not be done in the background. Unmounting NFS file systems After an NFS file system is mounted, unmounting it is simple. You use the umount command with either the local mount point or the remote file system name. For example, here are two ways you could unmount maple:/tmp from the local directory /mnt/maple. # umount maple:/tmp # umount /mnt/maple Either form will work. If maple:/tmp is mounted automatically (from a listing in /etc/fstab), the directory will be remounted the next time you boot Red Hat Linux. If it was a temporary mount (or listed as noauto in /etc/fstab), it will not be remounted at boot time. Tip If you get the message, device is busy when you try to unmount a file system, it means that the unmount failed because the file system is being accessed. Most likely, one of the directories in the NFS file system is the current directory for your shell (or the shell of someone else on your system). The other possibility is that a command is holding a file open in the NFS file system (such as a text editor). Check your Terminal windows and other shells, and cd out of the directory if you are in it, or just close the Terminal windows. Other cool things to do with NFS You can share some directories to make it consistent for a user to work from any of several different Linux computers on your network. Some examples of useful directories to share are: /var/spool /mail By sharing this directory from your mail server, and mounting it on the same directory on other computers on your network, users can access their mail from any of those other
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