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Get the /dev/disk/by-id fragment for a physical drive

Terminal - Get the /dev/disk/by-id fragment for a physical drive
ls -l /dev/disk/by-id/ | grep '/sda$' | grep -o 'ata[^ ]*'
2013-01-16 17:28:11
User: michelsberg
Functions: grep ls
Get the /dev/disk/by-id fragment for a physical drive

Substitute for #11720

Can probably be even shorter and easier.


There are 3 alternatives - vote for the best!

Terminal - Alternatives
print /dev/disk/by-id/*(@[1]:t)
2013-03-23 23:22:14
User: khayyam
Tags: zsh

example of the use of zsh glob qualifiers:

"@" = the symlink qualifier

"[1]" = first element

:t = remove leading path components, leaving the tail

2014-02-06 15:33:05
User: enrique
Tags: Ubuntu

Requires that bash has extglob enabled: shopt -s extglob

ls -l /dev/disk/by-id | egrep ata-.*`hdparm -i /dev/sda | grep SerialNo | sed 's/.*SerialNo=//' | tr -d "\n"`.*sda$ | sed -e 's/.*ata-/ata-/' -e 's|[ ].*||' | tr -d "\n"
2013-01-07 10:20:25
Functions: egrep grep ls sed tr
Tags: Ubuntu

This was tested on Ubuntu 12.04 (Precise) LTS Server. It returns the name of the symlink within /dev/disk/by-id for the physical drive you specify. Change /dev/sda to the one you want, and replace ata- with scsi- or the appropriate type for your drive.

I used this to pre-configure grub-pc during a non-interactive install because I had to tell it which disk to install grub on, and physical disks don't have a UUID such as that blkid provides.

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