mount failure

[Warren Block]

On Wed, 6 Jun 2012, Gary Aitken wrote:

> Running under X with xfce, just did this:
>
>  gpart show -l da0
>  gpart delete -i 1 da0
>  gpart destroy da0
>
>  gpart create -s GPT da0
>  gpart bootcode -b /boot/pmbr da0
>
>  gpart add -t freebsd-boot -i 1 -s 512K -l gptboot da0
>  gpart bootcode -b /boot/gptboot -i 1 da0
>
>  gpart add -t freebsd-ufs -a 4K -s 35G -i 2 -l fbsdroot da0
>  gpart add -t freebsd-swap -a 4K -s 512M -i 3 -l fbsdswap da0
>  gpart add -t freebsd-ufs -a 4K -s 1G -i 4 -l fbsdvar da0
>  gpart add -t freebsd-ufs -a 4K -s 512M -i 5 -l fbsdtmp da0
>  gpart add -t freebsd-ufs -a 4K -s 893G -i 6 -l fbsdusr da0
>
>  newfs /dev/gpt/fbsdroot
>  newfs -U /dev/gpt/fbsdvar
>  newfs -U /dev/gpt/fbsdtmp
>  newfs -U /dev/gpt/fbsdusr
>
>  mount /dev/gpt/fbsdroot /mnt/goflex
>
> I then tried to create a snapshot of /
> X immediately slowed to less than a crawl, and I couldn't do anything.
> At first I could move the pointer a little, but then I lost it.
> After a half hour or so, I power-cycled and rebooted.
>
> When I tried to mount the usb drive, I (not surprisingly) got this:
>
>  #mount /dev/gpt/fbsdroot /mnt/goflex/root
>  mount: /dev/gpt/fbsdroot : operation not permitted
>  WARNING: RW mount of /mnt/goflex denied.  File system is not clean - run fsck.
>
> But when I try to do an fsck, I can't:
>  #fsck /dev/gpt/fbsdroot
>  fsdk: could not determine filesystem type
> (same msg for /dev/gpt and /dev/da0p2)

# fsck -y -t ufs /dev/gpt/fbsdroot

I don't see any obvious problem with the procedure.