Blkid doesn't show SWAP disk id

Embedded Linux Discussions
1

Hi Robert,

I created a swap disk by:

sudo dd if=/dev/zero of=/swap bs=1024k count=1000
fallocate -l 256m /swap 
chmod 0600 /swap
mkswap /swap
    Setting up swapspace version 1, size = 256 MiB (268431360 bytes)
    no label, UUID=9a7d1303-3562-4f25-b4e9-201645133850
swapon /swap
also added into etc/fstab
  /swap        none    swap    sw      0       0

But blkid tool doesn’t list the swap disk ID.

I am trying to setup the swap disk for hibernate and resume.

Thank you,
David

2

blkid only shows block device, if you want swap disk id to show up, carve up the partition and create a new dedicated partition for the swap.

voodoo@nuc-git:~$ sudo blkid
/dev/sdc1: UUID="beda4ce0-b7dd-4659-9d94-19ca623107b8" TYPE="ext4" PARTUUID="fb478bf9-01"
/dev/sdb1: LABEL="apt_cache" UUID="676cb796-5261-408e-befe-29a25ae2c990" TYPE="ext4" PARTUUID="b581f7d0-01"
/dev/sda1: LABEL="webdata" UUID="78f7a9f1-4e59-4591-9511-60eb406522fb" TYPE="ext4" PARTUUID="0a9c2a64-01"
/dev/sdd1: UUID="c689b0bf-4d17-4c56-a65b-4f9a9503e793" TYPE="swap" PARTUUID="e8247138-01"
voodoo@nuc-git:~$

Regards,

3

Thank you very much.

David