gmirror, removing disk and mounting gives strange error

[Johan Ström]

Hi

I just gmirrod (gm1) two drives (ad8 and ad12) on a box. Working  
great and all. Now I needed some extra space while moving around  
files, and I removed ad8:

gmirror remove gm1 ad8

Working fine, gmirror reporting running complete on ad12 only. nice.
Now I try to mount one of the partitions on ad8 (ad8s1g):

crus /# mount /dev/ad8s1g /mnt
mount: /dev/ad8s1g: Operation not permitted

Huh.. wtf.. ok, so I check dmesg:

WARNING: R/W mount of /storage/gm1s1g denied.  Filesystem is not  
clean - run fsck

gm1?? I tought it was removed from gm1..

# gmirror dump /dev/ad8
Can't read metadata from /dev/ad8: Invalid argument.

dumping ad12 for example gives me correct info.. so it seems ad8 is  
cleared correctly.. trying to run clear on ad8 gives same errors as  
above.

Okay, so the FS might not be clean since I removed the disk while the  
FS was mounted.. But why does it report gm1s1g?? thats the mountpoint  
of my gm1 mirror (or rather the s1g on the gm1 mirror).. Confusing ;)
Do I dare to do a newfs on the disk, or will it somehow link back to  
the old mirror and wipe that too? Not something I want to risk.. ;)

The other partitions on gm1 is a,b,d,e,f, system partitions from  
which the system is running currently..

Any clues?
Thanks!

Johan
johan at stromnet.org