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Apple Computing Products:
macOS - Operating System
Downgrading from Catalina to older os.
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<blockquote data-quote="MacInWin" data-source="post: 1836708" data-attributes="member: 396914"><p>I would not say the problem is with the split. The split would not produce what you say you are seeing at all. Have you backed up your data? If so, then here is what I would suggest. (If you haven't backed up, do so before doing anything. The terminal command will erase EVERYTHING on the drive. Everything!</p><p></p><p>Remake a bootable installer. Something is wrong with the one you have, it should not even say anything about Catalina if it is a Mojave installer (Mojave doesn't know about Catalina). Boot from the installer. If it is a good installer, it should not hang or get that report. Once booted, you should have an option to use Disk Utility to format the internal drive. Use that to erase/partition the hard drive and create the one partition or Volume as APFS calls it. Then install Mojave from the installer and restore from your back. No need for Terminal at all.</p><p></p><p>The challenge with just answering your question is that techiesteve referred to "partition" when APFS changed the structure and terminology and no longer uses partition. The drive is now a Container and contains Volumes within the Container. The command he has shown is used to delete the entire container, leaving the drive empty (including empty of all your data). But you can do that from a good installer USB drive using Disk Utility and not worry about the complexity of a terminal command that you don't understand completely. Take the safer route.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1836708, member: 396914"] I would not say the problem is with the split. The split would not produce what you say you are seeing at all. Have you backed up your data? If so, then here is what I would suggest. (If you haven't backed up, do so before doing anything. The terminal command will erase EVERYTHING on the drive. Everything! Remake a bootable installer. Something is wrong with the one you have, it should not even say anything about Catalina if it is a Mojave installer (Mojave doesn't know about Catalina). Boot from the installer. If it is a good installer, it should not hang or get that report. Once booted, you should have an option to use Disk Utility to format the internal drive. Use that to erase/partition the hard drive and create the one partition or Volume as APFS calls it. Then install Mojave from the installer and restore from your back. No need for Terminal at all. The challenge with just answering your question is that techiesteve referred to "partition" when APFS changed the structure and terminology and no longer uses partition. The drive is now a Container and contains Volumes within the Container. The command he has shown is used to delete the entire container, leaving the drive empty (including empty of all your data). But you can do that from a good installer USB drive using Disk Utility and not worry about the complexity of a terminal command that you don't understand completely. Take the safer route. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Downgrading from Catalina to older os.
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