***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the shoe (drive in this case).
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
I'll be honest here, I haven't tried backoff from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the shoe (drive in this case).
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
I'll be honest here, I haven't tried backoff from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the shoe (drive in this case).
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
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I'll be honest here I haven't tried backing up from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
+
I'll be honest here, I haven't tried backoff from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
-
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the drive.
+
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the shoe (drive in this case).
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
I'll be honest here I haven't tried backing up from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the drive.
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
I'll be honest here I haven't tried backing up from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer. The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the drive.
+
***You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer.***
+
+
The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the drive.
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
-
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [https://support.apple.com/en-us/HT201372]
+
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [link|https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [link|https://support.apple.com/en-us/HT201372|https://support.apple.com/en-us/HT201372]
I'll be honest here I haven't tried backing up from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.
You're fighting a file system issue! Apple altered things between Sierra (HFS+) and High Sierra (APFS) and newer. The version of Disk Utility the different macOS's offer is what holding you back. The older Sierra Disk Utility within Internet recovery can't see the newer APFS partition. Sadly, I've never been able to get it to prep the internal drive as you need to get to the boot sectors but the Internet OS recovery still has the need of accessing your drive. Think of it this way your shoe heel broke off on your shoe, you hobble to the local shoe cobbler to have him fix your shoe (to expensive to toss) clearly he can't fix your shoe while your foot is in it can he. That's the rub here! Recovery is like your foot its still holding tight to the drive.
You'll need to boot up under an external boot drive so you can fully wipe the internal drive using Disk Utility. Ideally, this should be a Sierra drive.
From the sounds of it you have a second system (your older system) if its working we can make quick work of this just by using Target Disk Mode Here's a great writeup on it [https://computers.tutsplus.com/tutorials/understanding-the-applications-for-target-disk-mode--mac-60609|Understanding the Applications for Target Disk Mode] Your other means is to create a bootable disk using Internet recovery. You'll need a drive which you can wipe and is sizable enough to hold the OS (32GB or larger). then all you need to do is boot up under it get the OS Installer from here [https://support.apple.com/en-us/HT211683|How to get old versions of macOS]. One last option is just use your other system to setup an OS installer drive download the installer on your working Sierra Mac and then format a USB thumb drive with GUID Journaled file system using Disk Utility then copy the installer to it and then convert it following this guide [https://support.apple.com/en-us/HT201372]
I'll be honest here I haven't tried backing up from Monterey yet so Apple could have thrown us a fast ball in altering the EFI firmware so it can't use the older OS HFS+ volumes as a boot drive.