iMac Boot Drive Corrupted after Update

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iMac Boot Drive Corrupted after Update

My 2017 iMac's HDD was acting slow for a long time, so I bought a Western Digital SATA SSD and connected it to the computer using a SATA to USB-C adapter. I cloned the iMac's internal drive onto the SSD and made it the default startup drive. For about 6 months, everything was working well and the computer was much faster. Then, I updated to 13.6 (the computer was already running an older version of Ventura). It took about half a day to do the update, and the computer reverted to the internal drive. When I tried to boot from the external drive, the iMac had a lightning symbol on the screen and wouldn't boot. In Disk Utility, the computer cannot mount the SSD. If anyone can help, it would be appreciated as the computer is now unusably slow.

iMac (2017 – 2020)

Posted on Sep 22, 2023 11:31 AM

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Answer 1

BDAqua

Level 10

251,399 points

Sep 23, 2023 1:31 PM in response to username_7321

Many users have complained about receiving the error "com.apple.DiskManagement.disenter error 49244" on Mac, especially after updating macOS. The error 49244 appears when one tries to manually mount the grayed-out drive in Disk Utility by selecting it and clicking the Mount button.

When it happens, you can't access the videos, images, audios, documents or any other data on the external drive. But don't lose hope yet. In this article, we'll help you fix com.apple.DiskManagement.disenter error 49244 on Sonoma, Ventura, Monterey, Big Sur, Catalina and other macOS versions without losing data.

https://iboysoft.com/howto/com-apple-diskmanagement-disenter-error-49244.html

The "com.apple.DiskManagement.disenter error 49244" on macOS is one of the compatibility errors that prevents the connecting process of external drives to Mac. You can fix it by restarting your Mac, killing the FSCK process, running Disk Utility's First Aid feature, in Restore Mode, etc.

https://www.easeus.com/mac-file-recovery/diskmanagement-disenter-error-49244.html#:~:text=The%20"com.-,apple.,Utility%27s%20First%20Aid%20feature%2C%20etc.

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