75 lines
1.2 KiB
Plaintext
75 lines
1.2 KiB
Plaintext
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.TH FLASHFS 4
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.SH NAME
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flashfs \- journalling file system for flash memory
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.SH SYNOPSIS
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.B aux/flashfs
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[
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.B -Dr
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] [
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.B -n
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.I nsect
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] [
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.B -z
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.I sectsize
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]
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[
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.B -f
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.I file
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]
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[
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.B -m
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.I mountpoint
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]
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.SH DESCRIPTION
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.I Flashfs
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interprets the journal-based file system created by
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.IR mkflashfs (8)
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and stored in
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.I file
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(default
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.BR /dev/flash/fs )
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so that it can be mounted into a Plan 9 file system.
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.I Flashfs
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is typically used to create a stand alone file system from
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a small persistent storage device, such as an erasable flash memory.
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It does not authenticate its clients and assumes each group
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has a single member with the same name.
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.PP
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The
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.B -s
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option causes
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.I flashfs
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to post its channel on
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.BR #s/flashfs .
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.I Flashfs
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mounts itself on
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.IR mountpoint
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(default
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.BR /n/brzr ).
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The
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.B -D
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option turns on 9P debugging output.
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The
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.B -r
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option makes the file system read-only.
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.PP
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The files and directory structure are divided into
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.I sectsize
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(default
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.BR 4096 )
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byte blocks.
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Larger blocks make large files more compact but take longer to access.
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Supplying the
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.B -n
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option forces
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.I file
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to contain exactly
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.I nsect
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sectors.
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.SH SOURCE
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.B /sys/src/cmd/aux/flashfs
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.SH "SEE ALSO"
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.IR paqfs (4),
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.IR sacfs (4),
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.IR mkflashfs (8)
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