[CentOS] Two partitions with samd UUID??

Timothy Murphy
Mon, 15 Jun 2015 01:55:51 -0000

I seem to have partitions on two different disks
with the same UUID:
  [tim at helen ~]$ sudo blkid /dev/sda2
  /dev/sda2: LABEL="/boot1"
UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
    TYPE="ext3"
  [tim at helen ~]$ sudo blkid /dev/sdb2
  /dev/sdb2: LABEL="/boot1"
UUID="5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03"
    TYPE="ext3"
This is causing some confusion, as these are boot partitions,
and grub2 seems to be choosing the wrong one.

I wonder how this occurred;
I thought different partitions on different disks
necessarily had different UUIDs?

Maybe I used dd at some point.
Would this keep the same UUID?

--
Timothy Murphy
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin