Provided by: util-linux_2.20.1-1ubuntu3_i386 bug

NAME

       lsblk - list block devices

SYNOPSIS

       lsblk [options]

       lsblk [options] device...

DESCRIPTION

       lsblk  lists information about all or the specified block devices.  The
       lsblk command reads the sysfs filesystem to gather information.

       The command prints all block devices (except RAM disks) in a  tree-like
       format  by  default.   Use  lsblk --help to get a list of all available
       columns.

OPTIONS

       -a, --all
              List all block devices.

       -b, --bytes
              Print the SIZE column in bytes  rather  than  in  human-readable
              format.

       -d, --nodeps
              Don't  print  device  holders  or  slaves.   For  example "lsblk
              --nodeps /dev/sda" prints information about the sda device only.

       -D, --discard
              Print information about the discard (TRIM,  UNMAP)  capabilities
              for each device.

       -e, --exclude list
              Exclude the devices specified by a comma-separated list of major
              device numbers.  Note that RAM disks (major=1) are  excluded  by
              default.

       -f, --fs
              Output info about filesystems.  This option is equivalent to "-o
              NAME,FSTYPE,LABEL,MOUNTPOINT".   The  authoritative  information
              about filesystems and raids is provided by the blkid(8) command.

       -h, --help
              Print a help text and exit.

       -i, --ascii
              Use ASCII characters for tree formatting.

       -m, --perms
              Output  info about device owner, group and mode.  This option is
              equivalent to "-o NAME,SIZE,OWNER,GROUP,MODE".

       -l, --list
              Use the list output format.

       -n, --noheadings
              Do not print a header line.

       -o, --output list
              Specify which output columns to print.  Use --help to get a list
              of all supported columns.

       -P, --pairs
              Use key="value" output format.

       -r, --raw
              Use the raw output format.

       -t, --topology
              Output  info  about  block  device  topology.   This  option  is
              equivalent  to   "-o   NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-
              SEC,ROTA,SCHED".

NOTES

       For  the  partitions  are  some  information  (e.g.  queue  attributes)
       inherited from parental device.

AUTHORS

       Milan Broz <mbroz@redhat.com>
       Karel Zak <kzak@redhat.com>

SEE ALSO

       findmnt(8), blkid(8), ls(1)

AVAILABILITY

       The lsblk command is part of the util-linux package  and  is  available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.