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Mike
Mike, Mac Medic
Category: Mac
Satisfied Customers: 8498
Experience:  Over 20 years IT experience with Apple computers in publishing, marketing and design.
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My macbook pro won't load past the login screen, It is about

Customer Question

Hello. My macbook pro won't load past the login screen
JA: Just to clarify, how old is your MacBook Pro and what operating system are you running?
Customer: It is about 3 years old. I tried to download the lastest update. Thats when I started having problems
JA: Have you installed any updates recently?
Customer: Yes. El chapitan. After the update, my computer restarted and i havent been able to go past the login
JA: What troubleshooting have you tried?
Customer: Resetting the pram and trying to reinstall through utilities
JA: Anything else you want the Mac expert to know before I connect you?
Customer: No
Submitted: 8 months ago.
Category: Mac
Expert:  Mr.Med replied 8 months ago.

Hi, I'mCustomer Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.

Expert:  Mr.Med replied 8 months ago.

Please Turn off your Macbook by holding down Power button for 5 seconds. Then turn it back on and immediately hold down Command and R keys at same time for 10 seconds, this will boot your Macbook to the Mac OS X Utilities screen. Now click Disk Utility. Select your hard disk at left column and click Verify Disk (First Aid). If asked to repair, click Repair Disk and click Repair Permission. Restart from Apple menu and check.

Customer: replied 8 months ago.
Did that. It said problems were found with the partition map which might prevent booting
Expert:  Mr.Med replied 8 months ago.

Do you have the backup of your files ?

Customer: replied 8 months ago.
No i dont and i can not afford to wipe my macbook clean. I have pictures and videos of my grandmother who passed away that are only on my computer.
Expert:  Mr.Med replied 8 months ago.

If Disk Utility is unable to repair the problem with the partition map then you may have to reformat the disk. but before this, let's try creating a new user account and see if you are able to boot your Mac into it :

Reboot your Macbook and immediately hold down the Command (Apple) and S keys together for 10 seconds to boot into Single User Mode, When you see the text prompt, type in the following terminal commands to create a new Admininstrator account (hit return after each line).

mount -uw /

rm /var/db/.AppleSetupDone

shutdown -h now

After reboot, you should be able to create a new Administrator account. Create an account and login to it.

Let me know the results.

Customer: replied 8 months ago.
After it said that about the partition map it then said operation successful. When I tried to do single user mode, the terminal pops up and then goes away and takes me back to the login in screen.
Expert:  Mr.Med replied 8 months ago.

Is it still stuck on the login page, can you type your password ***** login?

Customer: replied 8 months ago.
I did what you told me, it took me to the log in screen. I tried to login and this happened
Expert:  Mr.Med replied 8 months ago.

In the "black screen" after the # sign , type this commands please :

mount -uw / (hit enter)

rm /var/db/.AppleSetupDone (hit enter)

shutdown -h now (hit enter)

let me know the results

Customer: replied 8 months ago.
Will this delete anything off my computer
Expert:  Mr.Med replied 8 months ago.

no

Customer: replied 8 months ago.
I put in the command. It shut off. I turned the computer back on and typed in my password. It loaded about half way and the shut off again.
Expert:  Mr.Med replied 8 months ago.

any errors? can you restart it again and check again please

Customer: replied 8 months ago.
Same thing
Expert:  Mr.Med replied 8 months ago.

Ok, try this last fix :

  1. Login as guest
  2. Open Terminal (cmd + space then search terminal)
  3. enter su "your_account"
  4. enter your password
  5. sudo find /private/var/folders/ | grep com.apple.LaunchServices | grep csstore
  6. sudo rm /private/var/folders/cd/someLongRandomNameHere/someFolderNumberHere/com.apple.L aunchService-whatever.csstore
Customer: replied 8 months ago.
It says this computer will restart to a secure safari only system for the guest user
Expert:  Mr.Med replied 8 months ago.

are you able to run the two commands please?

Customer: replied 8 months ago.
I can not open terminal under the guest account
Expert:  Mr.Med replied 8 months ago.

Let me open your question to other experts.

Thank you

Customer: replied 8 months ago.
Ok
Customer: replied 8 months ago.
Could i use the terminal in recovery mode
Expert:  Mr.Med replied 8 months ago.

Yes you can try this, i hope it works out.

Customer: replied 8 months ago.
It keeps saying command not found
Expert:  Mr.Med replied 8 months ago.

Please Make sure you typed the name correctly.

Customer: replied 8 months ago.
Could you please retype what i am suppose to put in line for line. With no instructions
Customer: replied 8 months ago.
I am using terminal in recovery mode
Expert:  Mr.Med replied 8 months ago.

sudo find /private/var/folders/ | grep com.apple.LaunchServices | grep csstore

sudo rm /private/var/folders/cd/someLongRandomNameHere/someFolderNumberHere

You can replace someLongRandomNameHere/someFolderNumberHere

Customer: replied 8 months ago.
This is what's happening
Expert:  Mr.Med replied 8 months ago.

I'm sorry but We may need to erase the hard drive and install a fresh OS X.

Customer: replied 8 months ago.
Is there anyway i can back up what i have on my computer before doing that
Expert:  Mr.Med replied 8 months ago.

Yes you can, give me a moment

Customer: replied 8 months ago.
Ok.
Expert:  Mr.Med replied 8 months ago.

First you will need an external Hard drive then you can follow the steps below :

  • Shut down your Macbook
  • Restart your Mac and hold down the Command and R keys immediately after you hear the startup chime. Keep holding them until you see the Apple logo.
  • Wait until you see the OS X Utilities windows
  • Select Disk Utility and click Continue
  • Select the Disk you want to back up, such as Macintosh HD
  • Select File > New Image > Image from “Macintosh HD or Your Drive”
  • Select your external drive
  • Choose “compressed”
  • Select Save
  • Your backup process will start. It may take some hours, it depend on the size of your data.
Customer: replied 8 months ago.
Is there any other way to do it without an external hard drive
Expert:  Mr.Med replied 8 months ago.

Do you have iCloud account, if yes can you check if your data has been synchronized and saved in your icloud account

Expert:  Mr.Med replied 8 months ago.

Are you there please? did you check your icloud account ?

If you still in the recovery mode you can the commands again, this time type :

find /Volumes/YourDrivename/private/var/folders/ | grep com.apple.LaunchServices | grep csstore

This command will have long and random looking names that end in csstor. Make a note of every file shown, then delete them

For example type the command (make sure you replace the someLongRandomNameHere/someFolderNumberHere with the names and folder numbers you find using the first command) :

rm /private/var/folders/cd/someLongRandomNameHere/someFolderNumberHere/com.apple.L aunchService-whatever.csstore

Customer: replied 8 months ago.
This is what I'm getting
Expert:  Mr.Med replied 8 months ago.

I would suggest to backup your files using recoverymode or iCloud then to do a clean installation, this is the only solution i can give you.

let me know if you need further assistance

Thank you

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