[Info-vax] Problems restoring image-backup

[Stephen Hoffman]

On 2016-06-28 11:38:50 +0000, jouk said:

> Today my alpha's system disk crashed. So I tried on an itanium to 
> prepare for a new disk from a backup-saveset:
> 
>  backup/ima/log DISK1_240616.BCK/sav $1$DGA113:
> 
> The save set was also created using /image. This command seems to 
> finish normally.
> I took the disk out of the Itanium and into the Alpha.

Tell the SET BOOTBLOCK command or the sys$setboot tool to write an 
Alpha bootbilock.  The default is to write the architecture-local boot 
block.

> Here it complains when booting that it does not contain a bootblock.

What does the following tell you about the boot structures on the target disk?

$ sb :== $sys$setboot
$ sb  -f ddcu: -s

where ddcu: is the target (restored backup) disk.

> If I boot from CD, I cannot mount the device because it seems not to 
> caontain a files-11 homeblock.

The primary home block was made optional at V8.0, and current Alpha 
should be able to deal with that.  If you're running an older OpenVMS 
release, it won't.  I'd expect this to work on V8.4.

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