Attempting to install High Sierra on an SSD  2017 Mac mini. Installing progress 
has been frozen at “About 30 minutes remaining”  for 2 hours.  I downloaded 
macos from the App Store, presumably v.10.13.4.  This is first High Sierra 
installation over factory-fitted Sierra, not an update. 

WAMUG advice to impatient users seems to be “just leave it - overnight if 
necessary”.  

Some blog sites suggest proving if Mac is frozen or just slow by invoking 
Command-L to view the install log.  I tried this as it seems the least invasive 
of suggestions. No log appeared immediately  (or after 1 hour) so the keyboard 
may not be talking to the Mac, which may indeed be frozen.

Doesn’t sound quite right. Would Command-L to view system log be possible? On a 
Mac that hasn’t yet got an os?!   I tried Command-L back in Mountain Lion days 
and recall difficulties getting the log started, even for a normal download.

Earlier today I installed High Sierra on a 27 inch fusion-drive iMac with no 
problems - around 30 minutes download and 35 minutes installation. This was 
first High Sierra installation (v.10.13.4) over Sierra.

Cheers
Alan
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