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opts Option
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The options to pass to the mount system call. A leading `-' is
silently ignored. The mount options supported generally correspond to
those used by mount(8) and are listed below. Some additional
pseudo-options are interpreted by Amd and are also listed.
Unless specifically overridden, each of the system default mount
options applies. Any options not recognised are ignored. If no
options list is supplied the string `rw,defaults' is used and all the
system default mount options apply. Options which are not applicable
for a particular operating system are silently ignored. For example,
only 4.4 BSD is known to implement the `compress' and `spongy' options.
`compress'
Use NFS compression protocol.
`grpid'
Use BSD directory group-id semantics.
`intr'
Allow keyboard interrupts on hard mounts.
`noconn'
Don't make a connection on datagram transports.
`nocto'
No close-to-open consistency.
`nodevs'
Don't allow local special devices on this filesystem.
`nosuid'
Don't allow set-uid or set-gid executables on this filesystem.
`quota'
Enable quota checking on this mount.
`retrans=n'
The number of NFS retransmits made before a user error is
generated by a `soft' mounted filesystem, and before a `hard'
mounted filesystem reports `NFS server "yoyo" not responding still
trying'.
`ro'
Mount this filesystem readonly.
`rsize=N'
The NFS read packet size. You may need to set this if you are
using NFS/UDP through a gateway.
`soft'
Give up after "retrans" retransmissions.
`spongy'
Like `soft' for status requests, and `hard' for data transfers.
`tcp'
Use TCP/IP instead of UDP/IP, ignored if the NFS implementation
does not support TCP/IP mounts.
`timeo=N'
The NFS timeout, in tenth-seconds, before a request is
retransmitted.
`wsize=N'
The NFS write packet size. You may need to set this if you are
using NFS/UDP through a gateway.
The following options are implemented by Amd, rather than being
passed to the kernel.
`nounmount'
Configures the mount so that its time-to-live will never expire.
This is also the default for some filesystem types.
`ping=N'
The interval, in seconds, between keep-alive pings. When four
consecutive pings have failed the mount point is marked as hung.
This interval defaults to 30 seconds. If the ping interval is
less than zero, no pings are sent and the host is assumed to be
always up. By default, pings are not sent for an NFS/TCP mount.
`retry=N'
The number of times to retry the mount system call.
`utimeout=N'
The interval, in seconds, by which the mount's time-to-live is
extended after an unmount attempt has failed. In fact the
interval is extended before the unmount is attempted to avoid
thrashing. The default value is 120 seconds (two minutes) or as
set by the "-w" command line option.
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