.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.49.3.
.TH GRUB-BIOS-SETUP "8" "June 2026" "GRUB 2.12" "System Administration Utilities"
.SH NAME
grub-bios-setup \- set up a device to boot using GRUB
.SH SYNOPSIS
.B grub-bios-setup
[\fI\,OPTION\/\fR...] \fI\,DEVICE\/\fR
.SH DESCRIPTION
Set up images to boot from DEVICE.
.PP
You should not normally run this program directly.  Use grub\-install instead.
.TP
\fB\-a\fR, \fB\-\-allow\-floppy\fR
make the drive also bootable as floppy (default
for fdX devices). May break on some BIOSes.
.TP
\fB\-b\fR, \fB\-\-boot\-image\fR=\fI\,FILE\/\fR
use FILE as the boot image [default=boot.img]
.TP
\fB\-c\fR, \fB\-\-core\-image\fR=\fI\,FILE\/\fR
use FILE as the core image [default=core.img]
.TP
\fB\-d\fR, \fB\-\-directory\fR=\fI\,DIR\/\fR
use GRUB files in the directory DIR
[default=/boot/grub2]
.TP
\fB\-f\fR, \fB\-\-force\fR
install even if problems are detected
.TP
\fB\-m\fR, \fB\-\-device\-map\fR=\fI\,FILE\/\fR
use FILE as the device map
[default=/boot/grub2/device.map]
.TP
\fB\-\-no\-rs\-codes\fR
Do not apply any reed\-solomon codes when
embedding core.img. This option is only available
on x86 BIOS targets.
.TP
\fB\-s\fR, \fB\-\-skip\-fs\-probe\fR
do not probe for filesystems in DEVICE
.TP
\fB\-v\fR, \fB\-\-verbose\fR
print verbose messages.
.TP
\-?, \fB\-\-help\fR
give this help list
.TP
\fB\-\-usage\fR
give a short usage message
.TP
\fB\-V\fR, \fB\-\-version\fR
print program version
.PP
Mandatory or optional arguments to long options are also mandatory or optional
for any corresponding short options.
.PP
DEVICE must be an OS device (e.g. \fI\,/dev/sda\/\fP).
.SH "REPORTING BUGS"
Report bugs to <bug\-grub@gnu.org>.
.SH "SEE ALSO"
.BR grub-install (8),
.BR grub-mkimage (1),
.BR grub-mkrescue (1)
.PP
The full documentation for
.B grub-bios-setup
is maintained as a Texinfo manual.  If the
.B info
and
.B grub-bios-setup
programs are properly installed at your site, the command
.IP
.B info grub-bios-setup
.PP
should give you access to the complete manual.
