View original (French)

MacOS High Sierra: "The recovery server could not be contacted"

Solved
songokuuu -  
 sam -
Hello,
A week ago I "tried" to reset my MacBook Air because I wanted to restore it to factory settings. So, I followed the steps directly (on the Apple website). Unfortunately, my computer suddenly shut down, and when I turned it back on, there was a folder with a ? flashing. I pressed cmd + R, but when I try to reinstall macOS High Sierra, it says the server cannot be contacted. I have tried all the manipulations (Disk Utility + running..) but nothing works.
I'm not a tech expert at all, and I would like to know if it’s possible to fix this problem by myself. :/
Thank you!

3 réponses

Réponse 1 / 3
dede74000 Posted messages 26996 Registration date   Status Contributeur Last intervention   5 370
 
Hello,

Here is a summary of the keyboard shortcuts, put together by Ritchi, to reinstall/reset/restore/repair Mac OS:

Restore Mac OS X

https://support.apple.com/fr-fr/HT201314

- "Command (⌘) + R" allows you to install the latest version of macOS that was on your Mac.

- "Option + ⌘ + R" allows you to upgrade to the latest compatible version of macOS for your Mac.

- "Shift + Option + ⌘ + R" allows you to install the version of macOS that came with your Mac when it was purchased new, or the closest available version.

Note:
The key combination must be pressed as soon as the Mac is turned on and held down until the desired effect occurs, namely the appearance of the "macOS Utilities" window.

© Ritchi

Cmd + R provides access to Disk Utility, which allows you to repair the hard drive via the SOS menu.

Best regards

--
When it's urgent, it's already too late (Talleyrand)
When all else fails, read the manual ;)
2
khrug
 
Thank you very much for taking the time to reply! I have gone through all of that again, but despite all the changes I've made, I still can't start my computer from a disk, and when I turn it off/restart it, there is still that folder with the question mark :/
0
dede74000 Posted messages 26996 Registration date   Status Contributeur Last intervention   5 370
 
If you restart from the recovery partition (recovery HD) while holding down the cmd and R keys, you will reach the utilities window, this one:



With the choices mentioned, is that the case?

(do not pay attention to the current boxes)
0
Songokuuu Posted messages 1 Status Membre
 
After trying to restart from the recovery partition, another error message appeared: it was simply a matter of resetting the date from "Terminal" and there you go, macOS High Sierra is installing, just have to wait!
Thank you for your help!!
0