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Sierra instal the new for android2/29/2024 If you're connected to the internet, you can use the command below, and then restart the OS X installer. Used the terminal utility in the recovery system (Utility Menu > Terminal) to update the clock using the ntpdate command and specifying an appropriate time server. Connected to the nearest Wi-Fi/Network connection.Ģ. it took me a while to notice this discrepancy.įor me, I disconnected the battery while installing a new hard disk, so my clock was set back to the Apple default (which is years ago). So if you have the same experience as I did. ![]() To make your life more difficult, booting from an Sierra OS X installer disk/USB drive doesn't necessarily show a clock in the top-right corner of the screen. I found that if time date/time is (very) wrong on your mac, you get this error. Video of El Capitan Internet recovery issue: I have tried installing using a different USB port. I have used the El Capitan installer terminal set the correct system time. I use the installer Disk Utility to format the Macintosh HD partition. The computer is a mid-2015 15" MacBook Pro. The computer does have Windows 10 installed on to a Bootcamp partition, and that seems to work fine. I'm guessing there's no restore partition. The second Apple support guy I talked to said to do a regular restore (CMD+R), but it always goes to internet recovery. It just keeps doing that for hours and hours. ![]() The count-down timer gets to 0, then goes back up to ~30 minutes. The problem there is it tries to install El Capitan, but never completes. So, Apple support guy said to do an internet recovery. I have tried recreating the installer USB stick with a fresh download. ![]() This leaves the computer without a bootable version of macOS. I've tried doing a clean install of Sierra multiple times, and every time, the installer gets to the end and then shows the message "The installer payload failed signature check".
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