NAME

partfs − serve file, with partitions

SYNOPSIS

­disk/partfs [ ­-Dr ] [ ­-d ­diskname ] [ ­-m ­mtpt ] [ ­-p ­9load-parts ] [ ­-s ­srvname ] ­diskimage

DESCRIPTION

­Partfs presents the file ­diskimage in the manner of sd(3) on mtpt/diskname (default /dev/sdXX).  Changes made to the disk are written through to ­diskimage unless the ­-r option is given. 

When setting disk geometry with the ­geometry control message, the arguments are sectors and sector size. 

The ­-m option causes ­partfs to mount its synthetic file system at ­mtpt instead of /dev. 

The ­-p option causes ­partfs to treat ­9load-parts as a partition environment variable constructed by ­9load (see 9boot(8)) and adds the defined partitions. This is used primarily by boot(8) to assist booting from USB disks.

The ­-s option causes ­partfs to post its 9P service at /srv/service.

EXAMPLES

Partition a USB flash device:

disk/partfs /dev/sdU0.0/data
disk/mbr -m /386/mbr /dev/sdXX/data
disk/fdisk -baw /dev/sdXX/data
disk/prep /dev/sdXX/plan9

SOURCE

­/sys/src/cmd/disk/partfs.c

SEE ALSO

fs(3), sd(3), disksim(8), prep(8)

Plan 9  —  March 28, 2012