There is no point in taking such action.
Replace the drive.
Once this begins, more blocks will go bad soon.
> I'm getting console messages like:
>
> wd0a: uncorrectable data error reading fsbn 530469 of ...
>
> I found this page:
>
> How to repair bad sectors on HDD in OpenBSD (Part I)
>
> at:
>
>
> https://www.s-vp.com/blog/post/how-to-repair-bad-sectors-on-hdd-in-openbsd-part-i
>
> Question 1:
> Is it possible to repair "wd0a"?
> Do I need another boot disk to do the repair?
> I'm in the process of building another boot disk with the identical OpenBSD
> version. I'm assuming it will take less time this way since I can copy the
> settings from a backup.
>
> Question 2:
> Once I build the new boot disk mentioned in Question 1 I thought I'd clone
> it and keep it up to date using rsync. Is the page:
>
> OpenBSD 5.5 and later | cloning a disk the easy way
>
> at:
>
>
> https://bytesandbones.wordpress.com/2014/09/23/openbsd-5-5-and-later-cloning-a-disk-the-easy-way/
>
> Is this set of instructions complete or is there a better set of
> instructions? Will this disk be bootable after cloning or do I have to
> install OpenBSD on the clone first to make the disk bootable? Is this a
> suitable way to maintain a spare clone of my boot disk? My data is kept on
> other hard disks in my system.
>
> Thanks, Joe.
> PS. My email web page flashed so I resent the message. I hope this gets
> through. Sorry if it's a duplicate.
>
