upgrade to OS Catalina

HI,

i have finally upgrade from OS High Sierra to OS Catalina (10.15.7).

After upgrade completed my toshiba hard drive 3.0 doesnt show anymore on Finder.

Via disk utility when I apply First aid says "This disk doesn’t contain an EFI system partition. If you want to start up your computer with this disk or include it in a RAID set, back up your data and partition this disk. : (-69767)"

What can I do to access again this driver and the files on it?

Thank you all

iMac Line (2012 and Later)

Posted on May 23, 2021 1:24 AM

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3 replies

tiagofc1978 Author

Level 1

8 points

May 23, 2021 8:32 AM in response to Owl-53

thanks. i solved now with update on tuxera.

Owl-53

Level 10

102,631 points

May 23, 2021 2:55 AM in response to tiagofc1978

Were there files on the drive before upgrading to Catalina ? From the error message supplied - it appears the drive either failed

( and they do ) or the filing system on the drive is corrupted and needs to be re-formatted

Owl-53

Level 10

102,631 points

May 23, 2021 9:52 AM in response to tiagofc1978

Congratulation !! - the drive was formatted as windows NTFS

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upgrade to OS Catalina