blockdev - Unix, Linux Command
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
Tag | Description |
-V |
Print version and exit.
|
-q |
Be quiet.
|
-v |
Be verbose.
|
COMMANDS
Tag | Description |
--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.
|
|