That's what it's supposed to look like. you can't see your password or the cursor, just type and hit return.
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How to Perform a Clean Installation of macOS Sierra
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That's what it's supposed to look like. you can't see your password or the cursor, just type and hit return.
I once made a mistake and booted into the USB drive and used Disk Utility to erase the Macintosh HD Fusion Drive. (I'd always done it that way with my old iMac without a Fusion Drive) This time though it resulted in some error and i had to recreate the Fusion Drive.
This link was a great help: https://discussions.apple.com/thread/7255973?start=0&tstart=0
I now boot into the recovery partition and erase the disk, then reboot into the USB Installer and install the OS.
Input your password and hit enter. It doesn't show those 'dots' that a password is being entered.
Thanks for the link. It is very helpful. Did you use the first method or the alternative method where you use terminal to rebuild the fusion drive?
I wish I had found the Apple Discussions link earlier when i ran into trouble with the Fusion Drive on my iMac.
What i found back then were the following links and used the instructions in the second link to rebuild the Fusion Drive.
https://forums.macrumors.com/threads/erased-fusion-drive-in-recovery-and-now-im-stuck.1900201/
http://blog.macsales.com/15617-creating-your-own-fusion-drive
Since then I've always booted into the Recovery Partition to erase the Fusion Drive.
I had the plan to perform a clean install of MacOS Sierra over the christmas period, but having found this thread relating to the guide on "How to Perform a Clean Installation of macOS Sierra" I have had second thoughts doing this. My iMac a late 2015 27" and specced with a 2TB fusion drive and seeing the problems and the solution to get around that has well and truly put me off.
With my previous 24" iMac I, once a year or more used to perform a clean install which was easy as I had the install discs for Snow Leopard and the apps - iLife, iWork etc.. and it did make a difference, the machine felt and worked faster. Whether that was the placebo effect I could not say. Which is why I want to do a clean install from El Capitan to Sierra, but as Apple have made it more difficult to do so, perhaps I should just download and follow what Apple want the average user to do....
With my previous 24" iMac I, once a year or more used to perform a clean install which was easy as I had the install discs for Snow Leopard and the apps - iLife, iWork etc.. and it did make a difference, the machine felt and worked faster. Whether that was the placebo effect I could not say. Which is why I want to do a clean install from El Capitan to Sierra, but as Apple have made it more difficult to do so, perhaps I should just download and follow what Apple want the average user to do....
From recent experience with OS upgrades it's becoming apparent that "what Apple want the average user to do" is buy a new computer when they want to update to the latest OS.
I kept getting errors on the Formatting of my drive in the disk utility when the GUID partition was selected(this is needed). I had a YubiKey in the other USB slot, so i took that out and things started working again. Not sure if anyone also ran into this issue. Just an FYI
I'm posting to encourage the author of this article to include this important detail:
Make sure you DO NOT have more than one disk named "Untitled" mounted when you perform the Terminal step!!
My external FileVault disk was also named Untitled, and the Terminal command chose the FileVault disk instead of the USB stick I had prepped and intended to use. After performing the Terminal step my FileVault disk was completed erased and I lost all the data stored on that drive. Ouch.
It's a small but important detail to note when following the instructions as presented in this article. Good luck!
Make sure you DO NOT have more than one disk named "Untitled" mounted when you perform the Terminal step!!
My external FileVault disk was also named Untitled, and the Terminal command chose the FileVault disk instead of the USB stick I had prepped and intended to use. After performing the Terminal step my FileVault disk was completed erased and I lost all the data stored on that drive. Ouch.
It's a small but important detail to note when following the instructions as presented in this article. Good luck!
1. It's a front page story, one that's 9 months old, they are not going to edit the article.
2. You replied to a 9 month old thread.
3. It's common sense to check the name of your drive before formatting.
4. It's also common sense to eject a Time Machine disk and pull the cable before any disruptive action on a disk.
5. Welcome to MacRumors.
6. Sorry you lost Data.
*#5 and #6 first.
The obvious solution is to build a time machine and kill your younger self before he can name your very important data drive "Untitled".
You can actually download the latest version of Mac OS directly from the recovery mode now with Option+Command+R. This is the method Apple recommend, not the bootable USB method that every other guide article suggest. This should be the easiest and fastest way to do it, however Apple´s way can be a little nerve-racking since some users seems to be experiencing fake or real freezes in the installation process.
