NAME

flashfs − journalling file system for flash memory

SYNOPSIS

­aux/flashfs [ ­-Dr ] [ ­-n ­nsect ] [ ­-z ­sectsize ] [ ­-f ­file ] [ ­-m ­mountpoint ]

DESCRIPTION

­Flashfs interprets the journal-based file system created by mkflashfs(8) and stored in ­file (default /dev/flash/fs) so that it can be mounted into a Plan 9 file system.  ­Flashfs is typically used to create a stand alone file system from a small persistent storage device, such as an erasable flash memory.  It does not authenticate its clients and assumes each group has a single member with the same name. 

The ­-s option causes ­flashfs to post its channel on #s/flashfs.  ­Flashfs mounts itself on mountpoint (default /n/brzr).  The ­-D option turns on 9P debugging output.  The ­-r option makes the file system read-only. 

The files and directory structure are divided into ­sectsize (default 4096) byte blocks.  Larger blocks make large files more compact but take longer to access.  Supplying the ­-n option forces ­file to contain exactly ­nsect sectors. 

SOURCE

­/sys/src/cmd/aux/flashfs

SEE ALSO

paqfs(4), mkflashfs(8)

Plan 9  —  June 12, 2012