Installation guide

Console Commands 3-3
The boot command syntax is:
b[oot] [-flags NNNN, M, PPPP] [-file <filename>] <device_name>
where the -flags parameter allows additional boot command parameters
N, M, and P. Specifying -fl[ags] overrides the boot_osflags environment
variable (see Section 2.3). The NNNN flags, dependent on the system con-
figuration, are used with OpenVMS VAX when booting from a shadow set.
The M flag, dependent on the system configuration, specifies the system
root of the boot device. The PPPP flags are for the operating system boot-
strap loader options. The -file parameter indicates booting from the file
<filename>. Specifying -file overrides the boot_file environment vari-
able (see Section 2.3). Device names can be found by using the show de-
vice and show network commands. See Section 2.4 for information on
device names.
Boot command flags can be shortened, since values such as zero or com-
mas (which can be used as placeholders) do not have to be specified. These
parameters are read from right to left (PPPP, M, NNNN). For example,
boot -fl 0,0,100 or boot -fl ,,100 are the same as boot -fl 100, where 100
is the value of the P option.
For more information:
Operations Manual
VMS Upgrade and Installation Supplement:
VAX 7000-600 and VAX 10000-600 Series