diff options
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/i386/stand/installboot/installboot.8 | 71 |
1 files changed, 49 insertions, 22 deletions
diff --git a/sys/arch/i386/stand/installboot/installboot.8 b/sys/arch/i386/stand/installboot/installboot.8 index d028e12b770..281b7e6ac58 100644 --- a/sys/arch/i386/stand/installboot/installboot.8 +++ b/sys/arch/i386/stand/installboot/installboot.8 @@ -1,5 +1,4 @@ -.\" $OpenBSD: installboot.8,v 1.8 1997/09/24 08:31:18 mickey Exp $ -.\" +.\" $OpenBSD: installboot.8,v 1.9 1997/09/24 10:37:22 downsj Exp $ .\" .\" Copyright (c) 1997 Michael Shalayeff .\" All rights reserved. @@ -36,7 +35,7 @@ .Os .Sh NAME .Nm installboot -.Nd install a bootstrap on a UFS disk or partition +.Nd install a bootstrap on a FFS disk or partition .Sh SYNOPSIS .Nm installboot .Op Fl n @@ -48,9 +47,10 @@ .Ar disk .Sh DESCRIPTION .Nm installboot -is used to install a "first-stage" boot program into the boot area -of a UFS or a FFS disk partition, and initialize the table of block -numbers the +is used to install a +.Dq first-stage +boot program into the boot area +of a FFS disk partition, and initialize the table of block numbers the .Ar biosboot program uses to load the second-stage boot program. .Pp @@ -68,41 +68,68 @@ Used to specify the sectors-per-track value if the drive has sector translation activated, and .Nm is unable to determine the translated geometry. -If not specified, this defaults to d_nsectors from the disklabel. +.\" If not specified, this defaults to d_nsectors from the disklabel. +If not specified, this defaults to the value retrieved from the BIOS +at boot time, available via +.Xr sysctl 8 . .It Fl h Ar tpc Used to specify the tracks-per-cylinder value if the drive has sector translation activated, and .Nm is unable to determine the translated geometry. -If not specified, this defaults to d_ntracks from the disklabel. +.\" If not specified, this defaults to d_ntracks from the disklabel. +If not specified, this defaults to the value retrieved from the BIOS +at boot time, available via +.Xr sysctl 8 . .El .Pp The arguments are: .Bl -tag -width biosboot .It Ar boot The name of the second-stage boot program in the mounted file system -where the first-stage boot program is to be installed. +where the first-stage boot program is to be installed. This should be +a full pathname. .It Ar biosboot The name of the prototype file for the first stage boot program, -usually /usr/mdec/biosboot. +usually +.Pa /usr/mdec/biosboot . .It Ar disk -The name of the disk containing the partition in which the -first-stage boot program is to be installed. -This might be the raw partition -of the block device on which the file system containing -.Ar boot -is mounted. Note that you must be in single-user mode or have your -kernel in insecure mode (see -.Xr sysctl 8 's -kern.securelevel variable or /etc/rc.securelevel) to be able -to access the raw partition of a mounted disk. +The name of the disk containing the partition in which the second-stage +boot program resides and the first-stage boot program is to be installed. +This can either be specified in short form (i.e., +.Sq sd0 +or +.Sq wd0 ) , +or as the explicit device node, such as +.Pa /dev/rsd0c +or +.Pa /dec/rwd0c . +.Pp +Note that you must be in single-user mode or have your kernel in +insecure mode (see the +.Xr sysctl 8 +.Va kern.securelevel +variable or +.Pa /etc/rc.securelevel ) +to enable access to the raw partition of a mounted disk. +.Pp +The +.Sq c +partition is always used to represent the +.Dq entire +disk on i386. .El .Sh BUGS -The disklabel d_type field must be set to a value other than "unknown". +The disklabel +.Va d_type +field must be set to a value other than +.Dq unknown . .Pp You cannot run .Nm installboot -for drives/partitions others then the one you want /bsd loaded from. +for drives/partitions others then the one you want +.Pa /boot +loaded from. .Sh SEE ALSO .Xr disklabel 8 , .Xr init 8 , |