detect partitions

blkid -c /dev/null

`blkid` is an interface to libuuid - it can read Device Mapper, EVMS, LVM, MD, and regular block devices. -c /dev/null - Do not use cached output from /etc/blkid.tab or /etc/blkid/blkid.tab (RHEL) -i - Display I/O Limits (aka I/O topology) information (not available in RHEL) -p - Low-level superblock probing mode (not available in RHEL)

Sample Output

# blkid -pi -c /dev/null /dev/sda
MINIMUM_IO_SIZE=512
PHYSICAL_SECTOR_SIZE=512
LOGICAL_SECTOR_SIZE=512
PTTYPE=dos



# blkid -c /dev/null
/dev/mapper/srv-lvol0: UUID="ff838430-4058-47a4-abf8-91362eb57ba1" TYPE="ext3" 
/dev/mapper/VolGroup00-LogVol01: TYPE="swap" 
/dev/mapper/VolGroup00-LogVol02: UUID="2ba64b56-9c0c-40e1-a17b-c1bfe2040007" TYPE="ext3" 
/dev/mapper/VolGroup00-LogVol00: UUID="c22f3324-8c93-4bd3-b376-eed363e0c15f" TYPE="ext3" 
/dev/cciss/c0d4: UUID="07bc6be5-6f4e-409a-940c-b5ba398dd7b5" TYPE="ext4" 
/dev/cciss/c0d0p1: LABEL="/boot" UUID="0cfeec27-0c44-4991-a2cb-1e881dfb98c3" TYPE="ext3" 
/dev/VolGroup00/LogVol00: UUID="c22f3324-8c93-4bd3-b376-eed363e0c15f" TYPE="ext3" 
/dev/VolGroup00/LogVol01: TYPE="swap" 
/dev/loop0: LABEL="NOLABEL" TYPE="iso9660" 
/dev/loop1: LABEL="RMO_CDROM" TYPE="iso9660" 
/dev/mapper/mpath4: UUID="07bc6be5-6f4e-409a-940c-b5ba398dd7b5" TYPE="ext4" 
/dev/mapper/mpath29p1: LABEL="ORADATA001" TYPE="oracleasm" 
/dev/mapper/mpath16p1: UUID="79028217-73cf-497c-bcb4-2bde1cbebdeb" SEC_TYPE="ext2" TYPE="ext3" 
/dev/mapper/mpath18p1: UUID="e361ac4f-a9d3-4250-a14c-1cac6881844f" SEC_TYPE="ext2" TYPE="ext3" 
/dev/loop2: LABEL="INST_CD" TYPE="iso9660"

By: mhs

2012-09-12 13:34:41

partition uuid sysfs blkid util-linux

7 Alternatives + Submit Alt

Use file(1) to view device information

file(1) can print details about certain devices in the /dev/ directory (block devices in this example). This helped me to know at a glance the location and revision of my bootloader, UUIDs, filesystem status, which partitions were primaries / logicals, etc.. without running several commands. See also: file -s /dev/dm-* file -s /dev/cciss/* etc.. Show Sample Output

file -s /dev/sd*

mhs · 2010-12-28 09:56:03 10

detect partitions

Shows all block devices in a tree with descruptions of what they are.
This is sample output - yours may be different.
4

lsblk -o NAME,TYPE,FSTYPE,LABEL,SIZE,MODEL,MOUNTPOINT

BasketCase · 2012-09-12 15:30:25 5
detect partitions
This is sample output - yours may be different.
0

sudo file -bs /dev/sda | sed -e 's/.*partition 1$.*$ code offset.*/partition 1\1/g' -e 's/$.$;/\1\n/g'

jlaunay · 2012-08-17 12:54:05 6

fsarchiver - probe disks and partitions

Another alternative to blkid, lsblk, file -s, cat /proc/paritions, fdisk -l, etc.. Show Sample Output

fsarchvier probe simple

0xFF · 2013-04-28 10:16:18 7

detect partitions

List all disks and all of their partitions on OS X. http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man8/diskutil.8.html Show Sample Output

This is sample output - yours may be different.

/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *750.2 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS swap                    32.0 GB    disk0s2
   3: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF               536.9 MB   disk0s3
   4:                  Apple_HFS spare                   671.1 MB   disk0s4
   5:          Apple_CoreStorage                         99.5 GB    disk0s5
   6:                 Apple_Boot Boot OS X               650.0 MB   disk0s6
   7:          Apple_CoreStorage                         616.3 GB   disk0s7
   8:                 Apple_Boot Boot OS X               134.2 MB   disk0s8
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS OS                     *99.2 GB    disk1
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *616.0 GB   disk2
   1:                        EFI                         209.7 MB   disk2s1
   2:                        ZFS                         615.7 GB   disk2s2
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy gjp22                  *614.2 GB   disk3
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *640.1 GB   disk4
   1:                        EFI                         209.7 MB   disk4s1
   2:                        ZFS                         639.8 GB   disk4s2
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy zhandy                 *635.7 GB   disk5
   1:       zfs_filesystem_proxy Pocket Time Machine     85.1 GB    disk5s1
/dev/disk7
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk7
   1:                        EFI                         209.7 MB   disk7s1
   2:                        ZFS                         2.0 TB     disk7s2
/dev/disk8
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy tall                   *2.0 TB     disk8
   1:       zfs_filesystem_proxy backups                 62.4 GB    disk8s1
   2:       zfs_filesystem_proxy LaCie d2 Extreme        50.7 GB    disk8s1s1
   3:       zfs_filesystem_proxy 11G                     50.7 GB    disk8s1s1s1
   4:       zfs_filesystem_proxy 12A                     50.7 GB    disk8s1s1s2
   5:       zfs_filesystem_proxy blocky                  54.2 GB    disk8s1s2
   6:       zfs_filesystem_proxy gjp22                   376.0 GB   disk8s1s3
   7:       zfs_filesystem_proxy zhandy                  478.3 GB   disk8s1s4
   8:       zfs_filesystem_proxy Pocket Time Machine     107.4 GB   disk8s1s4s1

-1

diskutil list

grahamperrin · 2012-10-06 21:18:27 7

What Others Think

is blkid a built-in command ?

seca · 488 weeks and 6 days ago

The util-linux package provides blkid, as well as other similar commands such as lsblk, wipefs, and blockdev. Almost every Linux distribution has util-linux.

mhs · 488 weeks and 6 days ago

rahimhh21 · 110 weeks and 6 days ago

Perfecthomepugs · 101 weeks and 6 days ago

pugpuppies95 · 63 weeks and 4 days ago

donperi1 · 56 weeks ago

yeneba6574 · 16 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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