> On 1 Nov 2018, at 6:41 pm, Marcus Harris <[email protected]> wrote:
> 
> Hello Wamugers,
> This has possibly been answered before, if so please repeat again.
> Without taking proper care I seem to have semi- installed Mojave on my iMac 
> which is limited to operate on High Sierra.
> I have OS 10.13.6 on a back up start up disk, so I have been able to use that 
> to get my iMac running.
> How may I reinstall OS 10.13.6 on the internal HD, which is now known as OSX 
> Base System and devoid of any  installed software?
> I have a separate HD which is the Time Machine.
> It’s a 2009 dual core iMac with 8Gb Ram
> Many thanks in advance
> Marcus Harris 75
> Apple iPhone7

Assuming that your Time Machine is up-to-date, and that it is still in good 
nick,  ie, not corrupted by the damaged Mojave installation, you should be able 
to re-start your Mac using Shift-Option-⌘-R. This will install the MacOS that 
originally came with your Mac, or the closest version still available. You 
should then be able to use Migration Assistant to restore your Mac by 
recovering from your Time Machine. 

This could well be a lengthy process, and your OS may be updated several times 
before it gets underway, so you have to be sure that you can be around to 
answer the various prompts that appear while this happens, but eventually 
you’ll be able to walk away and leave it to its own devices until it finishes 
the restoration.

Kind regards,

Peter Hinchliffe        Apwin Computer Services
FileMaker Pro Solutions Developer
Perth, Western Australia
Phone (618) 9332 6482    Mob 0403 046 948
--------------------------------------------------------------------
Mac because I prefer it -- Windows because I have to.

-- The WA Macintosh User Group Mailing List --
Archives - <http://www.wamug.org.au/mailinglist/archives.shtml>
Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml>
Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>