Resolved iMac 5k locked after FileVault on

[iTosaf]

Hi everyone,

My iMac 5k doesn't boot up after i enabled the filevault encryption and did a restart (it asked for it).
I don't even get the screen to input my password.
All i see is a "No access" sign (see the picture).

Any ideas how to fix it without reinstalling the OSX?

iMac 5K 4ghz 32gb 3TB 295X 4GB, El Capitan the latest update.

Thanx...

 

[Mr_Brightside_@]

If you reinstall it will not overwrite your data. I don't know if that will fix this issue, but you can try:

https://support.apple.com/en-ca/HT204904

This may help with the password:

https://support.apple.com/en-ca/HT202860

 

[iTosaf]

Thank you for your help.

After trying many things i was finally able to fix this issue.

I rebooted the iMac holding Command+R, then went to "Startup disk" and unlocked it from that menu (using the filevault password).
Then after the reboot i signed into the administrator main account and only then after the logout, i was able to login to the regular account.

If i go to System preferences/Security & Privacy/FileVault, it still shows "Encrypting 14 hours remaining".
I didn't try to reboot the iMac again.. Hope the problem is gone.

Shame on you Apple, this FileVault process should be transparent without any weird lockdowns.

Thanx, again.

 

[Mr_Brightside_@]

That's very odd, at a guess it seems like it got confused while encrypting, resulting in locking you out

Glad you got it sorted!