My Mac Starts Up Then Shuts Down

My macbook turns off itself during startup, after the apple logo appears. Help!

Macbook (pro) turns off halfway through startup…!

Shut down your Mac. Immediately press these four keys together: Command+Option+P+R. Hold down the keys until you hear the startup sound. Release the keys. When your Mac finishes starting up, you should go to System Preferences and adjust some settings that were reset, such as time zone, display resolution, etc.

Do you see the Apple logo, and a loading indicator (bar), and after a while, does your Macbook shuts down itself? If you have the same problem like us, you should keep read this blog post. Today, one of our customer brought in a Macbook Pro A1278 model. The customer told us that she did not really use this macbook that much, but one day, it started to turn off itself during booting. We powered it up, and we saw the apple logo with a loading bar (indicator), then it turned it off itself without any beep sound or any warning messages. First, we though it could be the Macbook battery, but the battery was fully charged, and it was okay. So… we did a research on Google… It looks like so many people with Macbook have the same problem like our customer. No matter which Macbook, we found out that many people have the same problem! In conclusion, most of them are caused by corrupted system files, and faulty hard drive. This means, we will need to repair the corrupted system files, or maybe we can format the existing hard drive, then install Mac OS again, or when there are physical damages to the actual hard drive, we will need to replace the existing hard drive. Anyways, here is what to do when your Macbook turns off itself during booting.

Learn what to do if your computer restarts or shuts down unexpectedly, or you get a message that your computer restarted or shut down because of a problem. I try to boot my mac and it shuts down before it gets to the blue screen. I've tried CMD, OPT, P R, and it still wont come up. What do you think is wrong. Optional Information: Computer OS: Mac OS X Browser: Firefox Already Tried: CMD, Opt, P & R. My Mac will boot, then shut down before it completes. This article contains information that shows you how to fix computer starts up and then Shuts off both (. I have checked all it will shut down within 30.

How to fix Macbook (or Macbook Pro) shut down during boot

1. Disk Utility to repair disk

First of all, you can try the built in disk utility to analysis your hard drive and to repair it when it has problems. You do not need any tools! Turn on your Macbook. Press and hold “Command” + “R” keys at the same time, and hold it until your Macbook triggers the Mac OS X Utilities. See how it looks like with a picture:

Why Macbook Suddenly Shuts Down

Click “Disk Utility” to open disk utility provided by OS X. Once you click it, the first thing you need to do is to select the right disk or partition on the left side menu. Choose a hard drive or a partition, then click “Verify Disk”. If there are problems detected, you can click “Repair Disk” button to repair any existing errors on the selected hard disk. After finished, restart your Macbook.

2. Format and re-install Macbook OS (Caution: You will loose all data)

If the repair was not successful, you can try to format the current hard drive, and re-install OS X. You can open OS X Utilities again, and click Re-install OS X. This built-in OS X installation app will download the right OS X operating system, and therefore, you don’t need a Macbook OS X disk for it. Depends on your internet speed, the estimated time of installation varies. Always, plug the power cord to void your Macbook being shutdown due to a low battery during the installation process. If you need to backup, you need to remove the hard drive from your Macbook, and you need to transfer files to a USB or an external hard drive.

3. Replace the existing hard drive, and re-install OS X

Remove the existing hard drive from your Macbook, and put a new hard drive. Depends on your Macbook model, disassembly method varies, but typically by removing the bottom plate will give you the access to your hard drive. Make sure about the size of your hard drive (like 500GB, 1TB…) and buy the right size for you. Always remove the battery connector first, and remove the hard drive connector. After putting a new hard drive, you can re-install Mac OS X.

Thank you for visiting our blog, we hope you have fixed your problem. If you liked it, don’t forget to follow us on our social media below. Thanks and have a great day!

This section describes how to start up and shut down Oracle Database Express Edition. It contains the following topics:

Starting Up the Database

Oracle Database Express Edition (Oracle Database XE) starts up automatically immediately after installation and after each system restart. Thus, there is no need to start up the database unless you previously shut it down.

You can start up the database from the desktop or with the SQL Command Line (SQL*Plus). Each of these methods is described in the following sections:

Starting Up the Database from the Desktop

This section explains how to start up the database from the desktop in Windows and in the following two Linux windowing managers: KDE and Gnome. Task chairs for home office. If your Linux computer is not running a windowing manager, or is running a windowing manager other than KDE or Gnome, you must start the database with the SQL Command Line. See 'Starting Up the Database Using the SQL Command Line' for instructions.

My Macbook Pro Starts Up But Then Shuts Down

To start up the database using the desktop:

  1. Do one of the following:

    • On Windows: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a Windows administrator—that is, as a user who is a member of the Administrator group.

    • On Linux: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a user who is a member of the dba user group. This is typically the user oracle. See 'Operating System Authentication' for more information.

  2. Do one of the following:

    • On Windows: Click Start, point to Programs (or All Programs), point to Oracle Database 11g Express Edition, and then select Start Database.

    • On Linux with Gnome: In the Applications menu, point to Oracle Database 11g Express Edition, and then select Start Database.

    • On Linux with KDE: Click the icon for the K Menu, point to Oracle Database 11g Express Edition, and then select Start Database.

Starting Up the Database Using the SQL Command Line

My macbook pro starts up but then shuts down

When you start up the database with the SQL Command Line, you must run the SQL Command Line on the same computer where you installed Oracle Database XE (the 'Oracle Database XE host computer').

To start up the database using the SQL Command Line:

  1. Do one of the following:

    • On Windows: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a Windows administrator—that is, as a user who is a member of the Administrator group.

    • On Linux: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a user who is a member of the dba user group. This is typically the user oracle. See 'Operating System Authentication' for more information.

  2. If not already opened, open a terminal session or command window.

  3. Linux platform only: Ensure that environment variables are set properly.

    See 'Setting Environment Variables on the Linux Platform' for details.

  4. At the operating system prompt, enter the following command to start the SQL Command Line and connect to the database:

    The slash (/) indicates that the database should authenticate you with operating system authentication.

  5. At the SQL Command Line prompt, enter the following command:

    If the command is successful, it displays output similar to the following. (System global area sizes will vary depending on the amount of physical memory in your Oracle Database XE host computer.)

  6. (Optional) Enter the following SQL query to verify that the database started up properly:

    The query results should look similar to the following:

  7. To exit the SQL Command Line. enter the following command:

Shutting Down the Database

Oracle Database Express Edition (Oracle Database XE) shuts down automatically when you shut down the computer that hosts it. However, you can also shut Oracle Database XE down manually whenever you want, such as to reduce the overall system processing overhead when you do not need to use the database.

Before shutting down Oracle Database XE, it is best to ensure that all users and applications have completed their work and logged out. See 'Monitoring Sessions' for information on how to view current database sessions.

If users or applications are still logged in when you begin a shutdown operation, the shutdown proceeds under the following conditions:

  • No new connections are permitted, and no new transactions are allowed to be started.

  • Any uncommitted transactions are rolled back.

  • All users and applications are immediately disconnected.

You can shut down the database with the desktop or with the SQL Command Line (SQL*Plus). Each of these methods is described in the following sections:

Shutting Down the Database from the Desktop

This section explains how to shut down the database from the desktop in Windows and in the following two Linux windowing managers: KDE and Gnome. If your Linux computer is not running a windowing manager, or is running a windowing manager other than KDE or Gnome, you must shut down the database with the SQL Command Line.

To shut down the database using the desktop:

  1. Do one of the following:

    • On Windows: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a Windows administrator—that is, as a user who is a member of the Administrator group.

    • On Linux: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a user who is a member of the dba user group. This is typically the user oracle. See 'Operating System Authentication' for more information.

  2. Do one of the following:

    • On Windows: Click Start, point to Programs (or All Programs), point to Oracle Database 11g Express Edition, and then select Stop Database.

    • On Linux with Gnome: In the Applications menu, point to Oracle Database 11g Express Edition, and then select Stop Database.

    • On Linux with KDE: Click the icon for the K Menu, point to Oracle Database 11g Express Edition, and then select Stop Database.

Shutting Down the Database Using the SQL Command Line

My Mac Starts Up Then Shuts Down

When you shut down the database with the SQL Command Line, you must run the SQL Command Line on the same computer where you installed Oracle Database XE (the 'Oracle Database XE host computer').

Shuts

Macbook Turns On But Then Shuts Down

To shut down the database using the SQL Command Line:

What To Do When Mac Suddenly Shuts Down

  1. Do one of the following:

    • On Windows: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a Windows administrator—that is, as a user who is a member of the Administrator group.

    • On Linux: Log in to the Oracle Database XE host computer as the user that installed Oracle Database XE or as a user who is a member of the dba user group. This is typically the user oracle. See 'Operating System Authentication' for more information.

  2. If not already opened, open a terminal session or command window.

  3. Linux platform only: Ensure that environment variables are set properly.

    See 'Setting Environment Variables on the Linux Platform' for details.

  4. At the operating system prompt, enter the following command to start the SQL Command Line and connect to the database:

    The slash (/) indicates that the database should authenticate you with operating system authentication.

  5. At the SQL Command Line prompt, enter the following command:

    Note that this command may take a short while to complete. If the command is successful, it displays the following output:

    If the command displays no output after a number of minutes, indicating that the shutdown operation is not proceeding, you can press CTRL-C to interrupt the command, and then enter the following command:

    The database must go through a recovery process when it starts up after a SHUTDOWNABORT command. It is recommended that you enable the recovery process to take place immediately, after which you can shut down the database normally. To do this, enter the following commands when the SHUTDOWNABORT completes:

    See Oracle Database Administrator's Guide for information on the SHUTDOWNABORT command.

  6. To exit the SQL Command Line. enter the following command: