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32 .Nd "specify zfsboot options for the next boot"
47 .Xr boot.config 5 Ns -style
53 the next time the machine is booted.
60 reads the information, it is deleted.
61 If booting fails, the machine automatically reverts to the previous
63 The information is stored in a special boot environment area of a ZFS pool.
65 If used without arguments,
67 will output the current boot configuration, if set.
69 The following options are supported by
71 .Bl -tag -width indent
80 Print all information stored in ZFS pool bootenv area.
87 Currently supported types are:
88 .Bl -tag -width indent -compact
91 .It Ar DATA_TYPE_UINT8
92 .It Ar DATA_TYPE_INT16
93 .It Ar DATA_TYPE_UINT16
94 .It Ar DATA_TYPE_INT32
95 .It Ar DATA_TYPE_UINT32
96 .It Ar DATA_TYPE_INT64
97 .It Ar DATA_TYPE_UINT64
98 .It Ar DATA_TYPE_BOOLEAN_VALUE
99 .It Ar DATA_TYPE_STRING
102 If not specified, the default is
103 .Ar DATA_TYPE_STRING .
113 .Bl -tag -width vfs.root.mountfrom -compact
114 .It Ev vfs.root.mountfrom
117 variable that identifies a pool for which the options are written.
126 .Dl "zfsbootcfg ""zfs:tank/ROOT/newbe:""
128 To clear the boot options:
142 This manual page was written by
143 .An Andriy Gapon Aq Mt avg@FreeBSD.org .