NetBSD 8.0 Cobalt RestoreCD/RestoreUSB

Hi,

as the previous, I've updated and put cobalt restorecd for NetBSD/cobalt 8.0:

 http://ftp.NetBSD.org/pub/NetBSD/arch/cobalt/restore-cd/8.0/

- restorecd-8.0-20180722.iso.gz is a gzipped RestoreCD ISO9660 image.
- restoreusb-8.0-20180722.img.gz is a gzipped RestoreUSB image
  for >=800MiB USB memory sticks on USB bootable PCs.

See also "Restore CD/USB Howto" for actual installation procedures:
 http://www.NetBSD.org/ports/cobalt/restorecd-howto.html

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See github commit logs for restorecd changes for 8.0:
 https://github.com/tsutsui/netbsd-cobalt-restorecd

There are still several known issue:
 - no proper way to specify the target network interface for dhcpd(8)
   on server machines which have multiple interfaces
   (except rebuilding restorecd images)
 - dhcpd(8) doesn't start properly if IPv6 is enabled due to
   dumb named(8) settings?

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Izumi Tsutsui