I finally got some issues sorted out with PayPal integration on my RadioMods site, I had been meaning to fix that for about a year!
Realising that I also needed to update my software I spent some time doing that, so it now has updated registration links as well as some new links to this site and my YouTube channel built into its menu system.
The software is on my S&M Software Site
If you ever get this error while attempting to install OS X, you will likely need to set the date using terminal.
The simplest way to set it (if you have no OS installed on the machine) is to boot the install media, open the terminal and check the date (type date).
The following information was found on someones site (sorry I forget which), but I have included it here to make it easier to correct this issue.
Use the following command in terminal to set the machine to a time and date of your choosing:
For example, to set it to 8pm on the 2nd October 2018
The command below will output the current date in a format suitable for use on another machine:
Further, the following (mouthful of a command) will let you specify a date and time in a more readable format and set it in one go:
date -f "%Y-%m-%d %H:%M:%S" "2016-07-09 15:20:10"
I have come across this issue a few times, and always forget what causes it.
If you have a bootable USB flash drive with an OSX installer on it, but it fails to boot showing a not permitted icon this means that it found a boot partition and system to boot from, BUT it could not boot from it, this could be due to it being an incompatible system or more likely, a permissions error.
I have seen lots of good, and bad advice online about this issue, and NOWHERE does it mention the fix I found, so I thought I would document this to help people out.
Mount the USB drive on another mac computer and do a "Get Info", at the bottom it shows the Name of users and "everyone" and what read&write permissions they have for the drive, click the padlock to allow changes, and then change the permission for all users (especially "everyone") to be read&write instead of only "read", make sure "Ignore Ownership on this volume" is checked, then click the padlock to save it and close the window, eject the USB drive and it should now work (if you build the volume correctly in the first place).