> On Sep 26, 2017, at 8:25 AM, Richard Charles <rcharles...@gmail.com> wrote: > > I have a 2009 Mac Pro with the firmware upgraded from MacPro4,1 B08 to > MacPro5,1 B03. It has been running macOS Sierra flawlessly for 9 months. Now > when installing macOS High Sierra I get the following message. > > "To install macOS High Sierra, a firmware update is required.” > > So apparently High Sierra upgrades the firmware on Mac Pro 5,1 models. > > > https://www.macobserver.com/news/mac-pro-macos-high-sierra-firmware-update/ > > Question: Has anyone successfully upgraded the firmware an older Mac Pro when > installing High Sierra?
Firmware upgraded to MP51.0084.B00 when installing macOS High Sierra. Starting computer from macOS Sierra Installer does not allow firmware to be upgraded. Must start computer from macOS Sierra then launch installer app and follow directions. Everything seems to be working fine. --Richard Charles _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
