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Question: Accidentally unmounted/deleted HD in disk utilities MacBook Pro 2015 won’t start up now.

Had some malware on my comp so decided to start fresh. Durring the process I stupidly left my comp on my bed and left to answer the phone. Cane back to my pup laying on comp and HD deleted/unmounted. I’ve tried reinstalling high sierra through disk utilities but doesnt show a place to install. Ive also tried erasing the drive and reformatting but its says operation failed. Booted into internet recovery but since im only able to use xfinity wifi it came back with an error message. Im assuming its because im not on a private wifi but honestly not sure. In disk utilities it shows:

internal: apple ssd sm0256g media

container disk1


apple disk image media

os x base system


internal says its full

container is basically empty

Apple disk image media is full

os x base system is 1.29 GB out of 2GB


Im about to head to someones house where I've previously accessed their internet to try internet recovery again but was wondering if there was any other tricks i could try. I do have an external hard drive somewhere but I’m not sure if it saved the operating system since I didn’t do a time machine back up and it is currently in storage. I’m somewhat familiar with terminal but was hesitant to try and fix the solution through terminal when I know there’s other steps that are easier and more forgiving. The hard drive should still be completely fine it hasn’t had any issues prior to this and this is 100% user error. Thanks for any and all help!

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I figured it out and it was as I suspected. My internet connection at home is via xfinity which is one of the types of connection that wont allow internet recovery to complete and initiate a download of the OS. Went on campus to try but same error was displaying. Went to a local coffee shop and utilized their wifi and pw to successfully enter internet recovery mode and revert to OS that was installed on system when purchased. Once in disk utilities I deleted and reformatted the affected drive and performed a verification and repair on all available drives to make sure nothing more serious was taking place. After that I began installation of Yosemite, and to my relief, my newly formatted drive was present instead of showing no known startup drives as previously. Completed Yosemite installation and after putting in my Apple ID and running through the setup process was able to get back to High Sierra and set up my computer to my liking. Now I’m gonna make a bootable drive on either my external or a flash drive in case of emergency.


I was planning on a fresh start anyway, I just had to take some extra steps. Next time I’ll make sure not to erase my start up drive. Hope this helps anyone who was experiencing the 🚫 boot screen/? Folder screen. Cheers!

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May 28, 2018 1:30 PM in response to ScottyDont7215 In response to ScottyDont7215

Solved:


I figured it out and it was as I suspected. My internet connection at home is via xfinity which is one of the types of connection that wont allow internet recovery to complete and initiate a download of the OS. Went on campus to try but same error was displaying. Went to a local coffee shop and utilized their wifi and pw to successfully enter internet recovery mode and revert to OS that was installed on system when purchased. Once in disk utilities I deleted and reformatted the affected drive and performed a verification and repair on all available drives to make sure nothing more serious was taking place. After that I began installation of Yosemite, and to my relief, my newly formatted drive was present instead of showing no known startup drives as previously. Completed Yosemite installation and after putting in my Apple ID and running through the setup process was able to get back to High Sierra and set up my computer to my liking. Now I’m gonna make a bootable drive on either my external or a flash drive in case of emergency.


I was planning on a fresh start anyway, I just had to take some extra steps. Next time I’ll make sure not to erase my start up drive. Hope this helps anyone who was experiencing the 🚫 boot screen/? Folder screen. Cheers!

May 28, 2018 1:30 PM

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Question: Accidentally unmounted/deleted HD in disk utilities MacBook Pro 2015 won’t start up now.