#Re install mac os sierra install
#Re install mac os sierra download

Installer information on the recovery server is damaged fix

However, if you donвЂ™t want to lose any data, you should still first try to perform the reinstallation without the disk formatting. Since this is one of those problems that tend to have an unclear cause, you may eventually need to format/erase your MacвЂ™s hard disk, as this will most likely allow you to perform the macOS installation. There could be other possible reasons you are seeing this error but, hopefully, the troubleshooting method shown below will help you deal with the problem regardless of whatвЂ™s causing it. However, if thatвЂ™s not the case, and youвЂ™d prefer not to lose any files, you should still be able to reinstall macOS if you complete our guide. This is an effective method if you are looking to sell your Mac and donвЂ™t care about getting the data thatвЂ™s on its hard drive deleted.

#Re install mac os sierra install

In this case, the solution would be to reformat your MacвЂ™s hard disk so that it has the APFS format and then try to install the macOS version of your choice. The macOS versions that came after Sierra could only be installed on Macs that have this hard disk format and so if your Mac is with the older HFS HDD format, then this could be the reason behind the error. After macOS Sierra, newer Mac models started using a new hard disk format вЂ“ APFS. This doesnвЂ™t mean you wouldnвЂ™t be able to install a new macOS version on your computer, but you may have to do this manually, by creating a bootable USB device in case the instructions provided further down this post donвЂ™t help you.ДЄnother potential cause of the вЂњInstaller information on the recovery server is damagedвЂќ error that some users and researchers have suggested is an incompatibility problem between the macOS version you are trying to install and the current format of the hard disk of your Mac. However, it is possible (especially if you are using an older model) that its certificate has expired and the machine canвЂ™t be verified.

#Re install mac os sierra download

In order to download the update, your Mac needs to be verified by AppleвЂ™s servers. You have probably seen a screen with a message on it that reads вЂњTo download and restore macOS, your computerвЂ™s eligibility will be verified with AppleвЂќ, where you had to select Continue, after which the error message appeared. One possible cause for this error is an outdated certificate for your Mac. Regardless of the reason you are trying to reinstall macOS, or the exact cause of the error, the method to resolve it stays basically the same. Usually, it doesnвЂ™t indicate any serious underlying problem and is often caused by some sort of incompatibility. This is not an uncommon issue and there could be different causes for it. Users who encounter the вЂњInstaller information on the recovery server is damagedвЂќ error are unable to complete the reinstallation of their macOS. вЂњInstaller information on the recovery server is damagedвЂќ is an error you may see displayed on your screen when trying to reinstall macOS.

Specifics if macOS Sierra 10.12.4 (or later) has never been installed on your Mac:.

Installer information on the recovery server is damaged fix.

Re-install mac os sierra