| Linux / Unix Command: blockdev |
NAME
blockdev - call block device ioctls from the command lineSYNOPSIS
blockdev [options] commands devicesDESCRIPTION
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.
Important: Use the man command (% man) to see how a command is used on your particular computer.
