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26 .Dt CHECK-PASSWORD.4TH 5
29 .Nm check-password.4th
30 .Nd loader password-checking boot module
32 The file that goes by the name of
34 is a set of commands designed to do one or more of the following:
36 .Dl o Prevent booting without password
37 .Dl o Prevent modification of boot options without password
41 by themselves are not enough for most uses.
43 examples below for the most common situations, and to
45 for additional commands.
47 Before using any of the commands provided in
52 .Dl include check-password.4th
54 This line is present in
55 .Pa /boot/forth/loader.4th
56 file, so it is not needed (and should not be re-issued) in a normal setup.
58 The commands provided by it are:
60 .Bl -tag -width disable-module_module -compact -offset indent
62 Multi-purpose function that can protect the interactive boot menu,
63 prevent boot without password
64 .Pq depending on Xr loader.conf 4 settings .
68 and if-set, the user cannot continue until the correct password is entered.
74 and only prompts for password on failure or user-interrupt.
77 for additional information.
80 The environment variables that effect its behavior are:
81 .Bl -tag -width bootlock_password -offset indent
82 .It Va bootlock_password
83 Sets the bootlock password (up to 16 characters long) that is required by
85 to be entered before the system is allowed to boot.
87 Sets the password (up to 16 characters long) that is required by
89 before the user is allowed to visit the boot menu.
92 .Bl -tag -width /boot/forth/check-password.4th -compact
93 .It Pa /boot/zfsloader
96 .It Pa /boot/forth/check-password.4th
99 .It Pa /boot/loader.rc
101 bootstrapping script.
105 .Pa /boot/loader.rc :
107 .Bd -literal -offset indent -compact
108 include /boot/forth/loader.4th
114 to prevent modification of boot options:
116 .Bd -literal -offset indent -compact
122 to prevent booting without password:
124 .Bd -literal -offset indent -compact
125 bootlock_password="boot"