I'm trying to disklabel a second SCSI disk on my system however disklabel
reports the following errors:

disklabel -w -B sd1 sdsg42100
disklabel: Dec  9 13:11:45 marat /netbsd: sd1: WARNING: no disk label,
using old default partitioning
warning, boot overlaps partition c, marked as FS_BOOT
disklabel: ioctl DIOCSDINFO: Open partition would move or shrink
marat# Dec  9 13:11:45 marat /netbsd: sd1: WARNING: no disk label, using
old default partitioning

The new disk label is fine and what I want to use, how can I persuade
NetBSD to let me label it?

Thanks

Tony