Do you want to install macOS High Sierra from scratch? We are facing the new Apple operating system for Macs and once we have it downloaded on our computer, two types of installations can be carried out: the one we call Update and the one we call clean or from scratch.
In both cases the user chooses the best option and obviously everything will depend on what we do on a daily basis with our team, if we accumulate many applications or documents and others. Another important data in both cases, whether we update or install from scratch, it is mandatory to make a backup copy of our Mac in Time Machine or similar, so we will avoid headaches if something goes wrong.
The truth is that this type of important updates is advisable to do them from scratch even though it is not an essential requirement, that is, If you don't want to install macOS Sierra from scratch, simply download it from the Mac App Store and click on install. We advise you to install from scratch to eliminate any remaining uninstalled applications, errors or anything that may harm the experience with the new version of the system, but go ahead that is not mandatory, we can update and go.
Installation from scratch
In this case, what we are going to do this year is to put aside a tool that helps us create the boot disk from a USB or external disk with at least 8 GB of storage and we are going to do it from Terminal. The first thing we are going to do is download macOS High Sierra from the App Store, When the download is finished we will not install it, we will close the installer by pressing cmd + Q.
Once the download starts we can continue with the installation process from scratch and it is very simple. Format and rename USB to then we open Port and we copy the code that we leave here below, it will ask us for our password, we enter it and continue.
sudo / Applications / Install \ macOS \ High \ Sierra.app/Contents/Resources/createinstallmedia –volume / Volumes / Untitled –applicationpath / Applications / Install \ macOS \ High \ Sierra.app
Ready, now we have created the installer we only have to wait for the new macOS High Sierra to be copied into the USB. Formatting will be done automatically and we only have to format our internal disk where the old operating system is located, that is, macOS Sierra. Then simply with the USB or external disk connected to the Mac, what we have to do is boot by pressing Alt and install the new macOS High Sierra system.
If we want we can skip the installation from scratch, simply updating the Mac from the Mac App Store. This is what it does is install the system on top of what we have and although it is true that Apple does not prevent us from making this type of updates, if we have many files, applications and others on the Mac, it may over time go something else slow. We also know people who have never done a clean or scratch install on their Macs and have had no problems.
In any case, updating the Mac is simple and we simply have to follow the steps indicated by the macOS High Sierra installer. We can see that they are very simple and basically it is to give: next - next - next.
It is important to mention that the backup in these cases is also important, we may suffer an unexpected power cut or other setback that ruins the afternoon and especially the documents we have on the computer, so before clicking the update button After downloading, it is important to perform a backup using Time Machine or whatever tool we want. If you have questions you can use the comments section.
Finally, make it clear that installations from scratch can be somewhat more complicated For those users who are not familiar with Macs or who have just bought the equipment, so really if you recently have a Mac you have not had time to "load it crap" so it is best that you update directly and you will not have any problem with it and your equipment will work perfectly.