NAME
blockdev - call block device ioctls from the command line
SYNOPSIS
blockdev [-q] [-v] command [command...] device [device...]
blockdev--report [device...]
blockdev-h|-V
DESCRIPTION
The utility blockdev allows one to call block device ioctls from the command line.
OPTIONS
-q
-v
--report
-h, --help
-V, --version
COMMANDS
It is possible to give multiple devices and multiple commands.
--flushbufs
--getalignoff
--getbsz
--getdiscardzeroes
--getdiskseq
--getzonesz
--getfra
--getiomin
--getioopt
--getmaxsect
--getpbsz
--getra
--getro
--getsize64
--getsize
--getss
--getsz
--rereadpt
--setbszbytes
--setfrasectors
--setrasectors
--setro
--setrw
AUTHORS
blockdev was written by Andries E. Brouwer and rewritten by Karel Zak.
REPORTING BUGS
For bug reports, use the issue tracker <https://github.com/util-linux/util-linux/issues>.
AVAILABILITY
The blockdev command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.