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User profile for user: Madxman3
Madxman3 Author
User level: Level 1
4 points

Hard drive partition in a mess

Hey Tech junkies.


Help needed with my Old MBP 13" 2012 Catalina.


I was trying to install Yosemite onto a my MBP in order to make a bootable USB flash drive to install onto my iMac 27" 2012 which is giving me endless problems.


I had followed the instruction off YouTube on downloading Yosemite and creating a bootable USB flash drive till the point where I cut copied and pasted the terminal code :


TERMINAL CODE - copy and paste (PART 1)

defaults write com.apple.finder AppleShowAllFiles 1 && killall Finder


In disk utilities the file was not showing installESD.dmg but instead showed Apple UDIF read only media so I tried to correct it (dumb) and double clicked on the image tab and created something that I thought was correct (dumb again) trying to make it read and write.


As you can see from the screen shots, I think iv created a image partition of my hard drive.


Unfortunately I have not turned on time machine to revert back and sadly no cloud backup.


is there any way to revert back to original ?



Help help help!





MacBook Pro 13″, 10.15

Posted on Oct 10, 2024 11:40 PM

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2 replies
User profile for user: HWTech
HWTech
User level: Level 9
60,098 points

Oct 11, 2024 3:07 PM in response to Madxman3

Your internal drive layout is fine although I don't see the "Update" volume. Now your external LaCie drive appears like it may have been modified, but I cannot be certain from the limited information provided.


Here is an Apple article with instructions for creating a bootable macOS USB installer:

Create a bootable installer for macOS - Apple Support


While that article does not provide the command necessary to create a bootable macOS 10.10 Yosemite USB installer, you can use the El Capitan instructions as a guide. The proper command for Yosemite should be the following (basically just replaced "El\ Capitan" with "Yosemite":

sudo  /Applications/Install\ OS\ X\Yosemite.app/Contents/Resources/createinstallmedia  --volume  /Volumes/MyVolume  --applicationpath  /Applications/Install\ OS\ X\Yosemite.app



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Hard drive partition in a mess

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