[rescue] Sun 3, Sunos 4, 3/60 Boot Block ?

[Plamen Mihaylov]

There is installboot command in mdec folder.
The syntax is: installboot bootsd /dev/rsdXa

On Fri, Jul 6, 2018 at 7:03 PM, Chris Quayle <syseng at gfsys.co.uk> wrote:

> Hi,
>
> I've been trying to build a new system disk for an old
> Sun 3/60 system.
>
> Around 1993, built a disk enclosure with 2 x 766 ESDI fh
> drives and 60 meg magtape + interface boards to convert
> to scsi. It was my first desktop Sun system, used for
> a number of years until upgrading to Sparc. Pulled it
> out a couple of years ago, all ok other than a flaky
> psu. Tried it again this year, but root sd0a is US.
>
> Have dump files for the root, usr and home partitions,
> so formatted another drive in a Sparc LX, also running
> SunOs and restored the partitions from backup. Have
> searched all the usual places, but can't find any
> reference to install the boot block, or whether this
> needs to be done before or after restoring the root
> partition ?. Have tapes., but no working tape drive and
> would be better to have the machine back as it was.
> Assume dd may be relevant, or, there is an
> installboot command on the LX, but not clear how to
> use it it this instance, though it should perhaps
> work if given the right Sun3 boot file
>
> Any ideas ?...
>
> Regards,
>
> Chris
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