NAME
info — diskless client configuration information file
DESCRIPTION
The
info
file is a POSIX shell sourceable file which contains parameter definitions
used at boot time.
Typically, it will be an empty file and default values will be used for all
parameters.
Following is the list of parameters which can be defined in the
info
file:
- ROOT_SERVER_IP
Specifies the IP address of the client's private root server. If this is not
specified, the client's private root server defaults to the boot server.
- PRIVATE_ROOT
Specifies the pathname to the client's private root on the private root
server. If this is not specified, the client's private root path defaults
to
/export/private_roots/client_name.
- MOUNT_ROOT_OPTS
Specifies the NFS mount options to mount the client's private root from
the private root server. If this is not specified, the mount options default
to
boot,hard,nointr,nodevs.
- MOUNT_STAND_OPTS
Specifies the NFS mount options to mount the client's
/stand
directory from the boot server. If this is not specified, the mount options
default to
boot,hard,nointr,nodevs.
- NO_SWAP_TO_NFS
Specifies whether NFS should be configured as primary swap. (NOTE: In
order to swap to NFS, a diskless kernel must be configured with tunable
parameter
remote_nfs_swap
set to 1.) If a diskless machine has a local
swap disk and swap to NFS is not desired, the
NO_SWAP_TO_NFS
parameter should be set to the value of 1 and the diskless kernel should be
configured without setting
remote_nfs_swap
to 1. If this parameter is not specified in the
info
file and the kernel tunable parameter
remote_nfs_swap
is set to 1, then NFS will
be configured as primary swap.
- REMOVE_EXTRA_SWAPFILES
If not set, this parameter defaults to a value of 1, and results in the
removal of all
swapfiles above the configured swap minimum (swap
min
is specified
in the client's
/etc/fstab)
when a diskless client boots. This ensures
that extraneous
swapfiles at boot time are removed, thus freeing disk space. If
REMOVE_EXTRA_SWAPFILES
is set to 0 in the
info
file, removal of extra swapfiles is disabled. This may result in
faster boot times due to the time savings in creating additional swap files.
The
info
file resides in the same directory as the client's kernel (/export/tftpboot/client/stand
) on the boot server and is retrieved at boot time using
tftp
command.
By default, when a diskless client is created, an empty
info
file is placed in the client's kernel directory. This ensures that all
parameters revert to their default values (see above). If the file is
not present, this is an error.
EXAMPLES
An example
info
file is shown below:
# Sample info(4) file:
# set NO_SWAP_TO_NFS
NO_SWAP_TO_NFS=1
FILES
/export/tftpboot/client/stand/info
Printable version
