UUID or Universally Unique Identifier

If you install Tiny Core manually, you may include something like tce=sda1.

If install Tiny Core using the installer, it includes something like tce=UUID=“9aff3da3-474d-440d-bb6c-3240afe84ac6”

This UUID is a Universally Unique Identifier.

If you install to a fixed drive, such as a hard drive in a computer, it's location will not change, so you can use tce=sda1. You can use either tce=sda1 or tce=UUID.

If you install to a removable drive, such as a USB drive, it may be sda1, sdb1, sdc1, sdd1 or sde1, depending on which computer or USB slot you are using.

If you were to include tce=sda1, you may not be able to load applications if used in a computer or USB slot which identifies the drive as sdb1, sdc1, sdd1 or sde1.

If the UUID is used, it will always be the same, and work in other computers.

If you have installed Tiny Core using the installer, and already have tce=UUID=“9aff3da3-474d-440d-bb6c-3240afe84ac6” and want to include persistent home and opt on a removable drive, copy the UUID. Like this

opt=UUID="9aff3da3-474d-440d-bb6c-3240afe84ac6" tce=UUID="9aff3da3-474d-440d-bb6c-3240afe84ac6" home=UUID="9aff3da3-474d-440d-bb6c-3240afe84ac6"

If you have not installed Tiny Core using the installer, and want to find out the UUID, use

blkid -s UUID /dev/sda1

Change sda1 to whatever partition you are using.