ref: b7a4dab54ab89f9cd62f3a31166cff553450cd28
dir: /sys/man/4/flashfs/
.TH FLASHFS 4 .SH NAME flashfs \- journalling file system for flash memory .SH SYNOPSIS .B aux/flashfs [ .B -Dr ] [ .B -n .I nsect ] [ .B -z .I sectsize ] [ .B -f .I file ] [ .B -m .I mountpoint ] .SH DESCRIPTION .I Flashfs interprets the journal-based file system created by .IR mkflashfs (8) and stored in .I file (default .BR /dev/flash/fs ) so that it can be mounted into a Plan 9 file system. .I 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. .PP The .B -s option causes .I flashfs to post its channel on .BR #s/flashfs . .I Flashfs mounts itself on .IR mountpoint (default .BR /n/brzr ). The .B -D option turns on 9P debugging output. The .B -r option makes the file system read-only. .PP The files and directory structure are divided into .I sectsize (default .BR 4096 ) byte blocks. Larger blocks make large files more compact but take longer to access. Supplying the .B -n option forces .I file to contain exactly .I nsect sectors. .SH SOURCE .B /sys/src/cmd/aux/flashfs .SH "SEE ALSO" .IR paqfs (4), .IR sacfs (4), .IR mkflashfs (8)