Symbol "Do Not Enter" appearing on the gray splash screen

Hello

I went to start my MBP 2010 with 4 GB of ram and a 240 gb SSD (installed in January) and I get a symbol as a symbol of the "no entry". I can't get around that. I tried the PRAM reset. I can't imagine it being the SSD as it is practically new and little use. I do a reinstall of my Mac OS x? I have it on a 8 GB usb key.

any help would be great

Screen of Mac OS X - grey or prohibitory sign appears during startup

Mac OS X - grey appears during startup

Address start up your Mac to a gray screen. MacIssues

Question (?) Mark, record of flashing or a gray screen at startup

It's related, but not identical questions. Their causes are described in based on Intel Mac-Startup sequence and error codes, symbols. Solutions will be found in:

A globe or a flashing question mark appears when you start your Mac

Mac OS X - grey appears during startup

In most cases problems can be caused by one or more of these:

a. problem with the computer's PRAM - see reset the PRAM and NVRAM on your Mac.

b. boot, directory of the drive has been corrupted - repair with disk utility.

c. critical system files are corrupted or deleted - reinstall OS X.

d. the hard drive is physically non-functional - replace the hard drive.

Please note that the information I have provided is what Apple recommends, if other users will suggest different solutions found here, then be sure to what they recommend has no impact on your ability to get the Apple continuous service guarantee, if any.

Please do not start remove disks or change cables unless you know what you're doing and have exhausted other alternatives non-invasive described here. If you perform all knit yourself which is not approved by Apple, then you will void any warranty you can have and lose any other Apple support.

Fix the hard disk and permissions

Boot from your Snow Leopard installation disc. After the installer loads, choose your language and click on the button continue. When the menu bar appears select utility drive in the Utilities menu. After that the charges of THE select your entry from hard drive (mfgr. ID and car size) in the list on the left.  In the status area, you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is faulty or has failed. (State SMART is not reported on external drives Firewire or USB). If the drive is "verified", then select your OS X volume in the list on the left (subentries under the entry for the road), click the first aid tab, then click the repair disk button. If THE reports any errors that have been corrected, and then run repair disk again until no errors are reported. If no errors are reported, click repair permissions. Wait until the operation is complete, then exit FROM and return to the installer.

If THE reports errors, it cannot be resolved, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you do not have one of them or none of them can fix the disc, then you will need to reformat the hard drive and reinstall the OS X.

The main difference if you use Lion or Mountain Lion, you must first boot from the boot Recovery HD simply HD recovery to perform the foregoing.

Reinstall Snow Leopard without erasing the drive

1 fix the hard disk and permissions

Boot from your Snow Leopard installation disc. After the installer loads, choose your language and click on the button continue. When the menu bar appears select utility drive in the Utilities menu. After that the charges of THE select your entry from hard drive (mfgr. ID and car size) in the list on the left.  In the status area, you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is faulty or has failed. (State SMART is not reported on external drives Firewire or USB). If the drive is "verified", then select your OS X volume in the list on the left (subentries under the entry for the road), click the first aid tab, then click the repair disk button. If THE reports any errors that have been corrected, and then run repair disk again until no errors are reported. If no errors are reported, click repair permissions. Wait until the operation is complete, then exit FROM and return to the installer.

If THE reports errors, it cannot be resolved, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you do not have one of them or none of them can fix the disc, then you will need to reformat the hard drive and reinstall the OS X.

2 reinstall Snow Leopard

If the disc is OK then leave FROM and return to the installer.  Proceed to reinstall OS X.  Note that the Snow Leopard installer will not erase your drive or disturb your files.  After installing a new copy of Mac OS X, the installer will move your Home folder, third-party applications, elements of support and network preferences in the newly installed system.

Download and install Mac OS X 10.6.8 v1.1 updated Combo.

Relocation of Lion/Mountain Lion without erasing the drive

HD recovery start: , restart the computer and after the buzzer, press on and hold down the COMMAND and R until the menu screen appears. Otherwise, restart the computer and after the buzzer, press on and hold down the OPTION key until the Boot Manager screen. Select the Recovery HD and click on the arrow pointing down.

Repair the hard drive and permissions: at startup, select in the main menu disk utility. Repair hard disk and permissions as follows.

When the recovery menu appears, select disk utility. After that the charges of THE select your entry from hard drive (mfgr. ID and car size) in the list on the left.  In the status area, you will see an entry for the S.M.A.R.T. status of the hard drive.  If it does not say "Verified" then the hard drive is faulty or has failed. (State SMART is not reported on external drives Firewire or USB). If the drive is "verified", then select your OS X volume in the list on the left (subentries under the entry for the road), click the first aid tab, then click the repair disk button. If THE reports any errors that have been corrected, and then run repair disk again until no errors are reported. If no errors are reported, click repair permissions. Wait until the operation is complete, then exit FROM and return to the main menu.

Reinstall/Mountain Lion Lion: Select reinstall/Mountain Lion Lion and click on the button continue.

Note : You will need an active Internet connection. I suggest to use Ethernet if possible because it's three times faster than wireless.

Tags: Notebooks

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