NAME
mkusbboot – generate bootable USB or other disk image for PC |
SYNOPSIS
mkusbboot [ –b boot ] [ –p proto ] [ –r root ] [ –s size ] |
DESCRIPTION
Mkusbboot generates a bootable disk image, called image, from
the filesystem at root (by default /n/boot), using the mkfs(8)
prototype file proto and files in /sys/lib/sysconfig/usb. The
default boot program is /386/9loadusb. The image will be exactly size*1,000,000 bytes long. By default, it will be 1,900,000,000 bytes long, so it should fit on so–called 2 GB USB devices. When building from /n/sources/plan9, the image defaults to 900,000,000 bytes long, to fit so–called 1 GB USB devices.
The image contains 9fat and fossil(4) file systems and is configured
to be bootable as a CPU server with serial console on 386 (with
optional VGA) or amd64 machines, when copied to a (possibly USB)
disk. There is an nvram partition, initially zeroed. |
EXAMPLES
Create a bootable USB flash drive from the local Plan 9 installation.
|
FILES
image the resulting disk image /sys/lib/sysconfig/usb
/tmp/9load files created while executing /tmp/9pccpuf.gz /srv/fossil /srv/fossil.open /srv/fscons /srv/fscons.open |
SOURCE
/rc/bin/mkusbboot |
SEE ALSO
usb(4), boot(8), 9boot(8), diskparts(8), loadfossil(8), partfs(8),
plan9.ini(8), prep(8) |
BUGS
Due to name clashes in /srv, should be run only on machines with
no running fossil instance named fossil and thus no /srv/fossil,
/srv/fossil.open, etc.
Not all BIOSes can reliably read from USB devices. Your mileage
may vary. |