How do I tell if a drive has bad144 information on it before I try to upgrade to FreeBSD 4.0 and it fails?
Use disklabel(8) for this. disklabel -r drive device will give you the contents of your disk label. Look for a flags field. If you see flags: badsect, this drive is using bad144. For example, the following drive has bad144 enabled.:
# disklabel -r wd0
# /dev/rwd0c:
type: ESDI
disk: wd0s1
label:
flags: badsect
bytes/sector: 512
sectors/track: 63
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