uuid oddity?

[Colin Law]

2009/6/14 Verde Denim <tdldev at gmail.com>:
> I'm running Ubuntu server 8.04 and just added a 500GB SATA drive that I
> pulled from my Ubuntu box that died :(
> But the new machine is much nicer :)
>
> I did fdisk the drive again in the new machine and built an ext3 filesystem
> on it.
>
> A reboot doesn't automagically mount it, so I ran blkid to get the UUID so I
> could make the necessary adjustment to fstab.
>
> /dev/sdc1: LABEL="/usr3" UUID="4c3451b0-3dfc-4119-8da3-775a3f78b5a9"
> TYPE="ext3" SEC_TYPE="ext2"
>
> None of the existing drives have this "SEC_TYPE" (secondary type?) in their
> description.
>
> Can anyone tell me what this is? I can't seem to find anything in the man
> pages that describes this, and google hasn't helped me uncover this yet.

According to http://ubuntuforums.org/showthread.php?t=914990, posted
by Pro-reason, it means secondary type. He/she says that Ext3
partitions can always also be mounted at ext2, because ext3 is just
ext2 with a journal.

Colin