The version of blkid in 16.04 is 2.27.0 and is from 02-Nov-2015, and it supports this option. You are either running an older release than 16.04, or have an old locally built version.
** Changed in: util-linux (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1721176 Title: util-linux blkid -o export is not working in 16.04 Status in util-linux package in Ubuntu: Invalid Bug description: patrikx3@workstation:~$ blkid -o export Invalid output format export. Choose from value, device, list, or full I says export is not an available export (which is expected by update- grub) although the program is long ago is updated with this format. blkid --versions is 12-Feb-2003. When will be updated? I cannot update grub because of it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1721176/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp