An error occurred while updating the firmware 32 non sedating ssris
Make sure you delete any existing installer you might have first.This version ran without issue first time, updating the computer's firmware and installing High Sierra.Nevertheless, I could then plug my external drive back into the old Mac, and it’s been working fine since then.I has even successfully installed minor updates since then.(marked as point A) After the upgrade process (regardless success or fail), the installer continues.It double checks the version of firmware to make sure it was updated successfully in previous process (namely point A).I finally decided to take advantage of the fact the the main drive is external and to plug it into my newer i Mac.From there, I could boot from the external drive and install High Sierra successfully. When the Mac wants to restart as part of the installation, I had to convince to boot again from the external drive, which wasn’t as reliable as I had hoped.
In contrast to my Mac Book Pro, the update finished without problems on the i Mac.It’s not my main machine, but I would like to install 10.13 on it.Updating starts smoothly enough, but when it comes to restarting, I get the following message: I understand that my Mac is on the edge, but I read that any machine which supports 10.12 will also support 10.13 The i Mac is running from an external SSD, due to a problem with the logic board, so I know that I have some problems.Check the current version you are running by going to the Air Port Utility menu within the program and choosing "About Air Port Utility." If the version shown is less than 5.5.2 then you should download the latest update.This can be done by choosing "Check for Updates..." in the Air Port Utility menu, or by downloading the software directly from Apple's Web site.
Before downloading, be sure to remove all currently installed versions of the utility.