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Copyright (C) 2000-2012
Philippe Troin
<webmaster@fifi.org>.

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Manpage of BLOCKDEV

BLOCKDEV

Section: Maintenance Commands (8)
Updated: May 2000
Index
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NAME

blockdev - call block device ioctls from the command line

SYNOPSIS

blockdev [options] commands devices

DESCRIPTION

The utility blockdev allows one to call block device ioctls from the command line.

OPTIONS

-V: Print version and exit.
-q: Be quiet.
-v: Be verbose.

COMMANDS

--setro: Set read-only.
--setrw: Set read-write.
--getro: Get read-only. Print 1 if the device is read-only, 0 otherwise.
--getss: Print sectorsize in bytes - usually 512.
--getsize: Print device capacity (in 512-byte sectors).
--setra N: Set readahead to N 512-byte sectors.
--getra: Print readahead (in 512-byte sectors).
--flushbufs: Flush buffers.
--rereadpt: Reread partition table.

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
COMMANDS

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Time: 10:30:32 GMT, April 26, 2024