Disklabel Editor strange labeling

[Andrei Kolu]

Hi,

here is my disklabel editor "screenshot"- from where it got ad14cs1 
partition name? When I created it then it was named ad14s1...
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                         FreeBSD Disklabel Editor

Disk: ad14      Partition name: ad14cs1 Free: 293041602 blocks (139GB)
Disk: ad18      Partition name: ad18s1  Free: 293041602 blocks (139GB)
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When I trie to create partition on this slice then I got error message:

"Error mounting /dev/ad14cs1d on /tank/bootdir : No such file or directory"

After I close sysinstall and restart it then partition disappear...
---------------------------------------------------------------------------
Disk name:      ad14                                   FDISK Partition 
Editor
DISK Geometry:  18241 cyls/255 heads/63 sectors = 293041665 sectors 
(143086MB)

Offset       Size(ST)        End     Name  PType       Desc  Subtype    
Flags

         0  293046768  293046767        -     12     unused        0
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FreeBSD testiserver 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #1: Mon Dec  1 
12:13:41 EET 2008     root at testiserver:/usr/obj/usr/src/sys/KERNEL  amd64