Removing UFS label from root

Erich Dollansky erichfreebsdlist at
Mon Sep 10 01:03:26 UTC 2012


On Sun, 9 Sep 2012 17:47:43 -0700
Kevin Oberman <kob6558 at> wrote:

> I added a label to my root fs some time ago. I really prefer the gpt
> label and I have added it, but I can't figure out how to remove the
> ufs label.
> I boot single user and run 'tunefs -L "" /dev/ada1p2' but I get an
> "unable to write superblock" error. This is before mounting the drive
> RW, but it is, of course, mounted RO. I tried setting the "allow
> foot-shooting" debug flag, but it did not help.
> Is my only hope to boot a live system? (I have no CD, so I guess I
> could try a a thumb drive.)

as media size is growing, I started to make now every backup copy
bootable. Big devices get then the full FreeBSD system.


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