Tech Learning: 2013

Tuesday, November 5, 2013

How to install OS Mavericks on your PC with Unibeast

If you're interested in running Mac OS X, but you don't want to pay ridiculous prices for a normal Mac, then a Hackintosh just might be for you. Right now, the newest iteration of OS X is 10.9, known as Mavericks. Installing Mavericks on a PC is pretty much the exact same as installing Mac OS X 10.8 (Mountain Lion). This guide will follow tonymacx86's standard Unibeast method, except that we try to cover the process with more detail (and pictures!).

Requirements:

A compatible computer: Not every computer will work with Mac OS X, even with the help of tools like Unibeast and Multibeast. Be sure to read the Hackintosh compatibility guide very carefully, to check whether or not your computer qualifies. The hardware requirements for OS X Mavericks are identical to those for OS X Mountain Lion; AMD processors and older 32-bit Intel processors (such as Pentium M) are not supported. If your computer already has OS X Mountain Lion installed, Unibeast will just update Mountain Lion to Mavericks normally, without deleting any of your apps or files.

A separate hard drive: Mac OS X needs its own hard drive (a minimum of 10 GB of space is required, but at least 50 GB of space is recommended). Unibeast will not work on a hard drive where Windows was installed first. You can bypass this requirement by applying the MBR patch to Unibeast (the process for Mavericks is the exact same as for Mountain Lion).

Unibeast (Free): Unibeast is a Mac program that modifies the official OS X Mavericks installer, and writes it onto a USB drive. You can then use this Unibeast USB drive to run the Mavericks installer on a PC. Unibeast works with Mac OS X Snow Leopard and newer; registration on tonymacx86.com is required to download Unibeast.

A Hackintosh with Snow Leopard/Lion/Mountain Lion already installed, a real Mac, or a Mac OS X virtual machine: Unibeast is a Mac app, so you need a computer with Mac OS X to run it. You could use a real Mac, if you own one. Alternatively, you could install Mountain Lion on a virtual machine, and run Unibeast on there instead. Be sure to install the Virtualbox Extension Pack to view USB drives from your virtual machine.

OS X Mavericks (Free): The method used by this guide requires that you download a free copy of the Mavericks installer app from the Mac App Store. Though the Mac App Store is included in Mac OS X 10.6.6 and newer, you have to be running 10.6.8 to download Mavericks. (you might be able to circumvent this requirement by spoofing your system version).

An empty USB drive (8 GB or larger): The USB drive used for Unibeast must be at least 8 GB in size. Since Unibeast will erase all of the files on your USB drive, make sure to back up its contents first. You can reuse this USB drive for normal stuff after you finish installing Mavericks.

Multibeast (Free): Multibeast is a collection of kext files that your Hackintosh will need to run properly, after the initial installation. Download it onto a USB drive. Be sure to download the newest version 6 of Multibeast, not the older versions 3, 4, or 5.

1. Format your USB drive for Unibeast

Plug your USB drive into Mac OS X, and open Disk Utility (located in the Utilities folder in the Applications folder). Select the USB drive in the sidebar of Disk Utility, go to the "Partition" tab of Disk Utility. Click the "Options" button, and check the partition scheme: it should be set to "Master Boot Record" by default.

Then, create a new partition layout with 1 partition. Set the format to "Mac OS Extended (Journaled)". Name the new partition whatever you want (I named mine "Cheesecake"), and click "Apply".

This will erase and reformat your USB drive so that it's ready for Unibeast. The process should only take a few seconds to complete.

2. Run Unibeast

Download Unibeast and run it. Make sure that the OS X Mavericks installation app from the Mac App Store is inside your "Applications" folder of Mac OS X.

Select your USB drive as the installation destination (mine is named "Cheesecake").

Click through the pages in the Unibeast installer, until you reach the following selection page. Choose the "Mac App Store Mavericks - 10.9" option. In addition, there are two extra options you might want to select: "Legacy USB Support" and "Laptop Support". Select the first option if you use a first-generation Intel Core processor; these are Intel Core processors with 3-digit model numbers, such as the Intel Core i7-960 or i7-875K. Select the second option as well if you're installing Mavericks on a laptop. If neither of these options apply to you, simply click "Continue".

You'll come up to the installation progress bar. Chances are, Unibeast will look like it's stuck at the "Running package scripts" stage. Don't panic! This is normal-- during the "Running package scripts" stage, the progress bar is counting the number of files copied, but Unibeast is copying some really big files, so it takes forever for the number of copied files to increase.

Though Unibeast is supposed to only take 10-15 minutes to run, it may take up to an hour, depending on how fast your USB drive is.

3. Set up the parts of your PC
Before you begin your Mavericks installation, make sure to follow these procedures:

Unplug all USB-connected devices from your computer before you begin the setup (except your keyboard and mouse). A faulty external USB hard drive can cause your Hackintosh bootloader to give you EBIOS errors on startup.
Open up your computer and unplug any extra internal hard drives that your computer has, besides the hard drive that you're installing OS X on. (Just unplug the hard drive SATA cables from your motherboard.)
If your computer uses a discrete (separate) graphics card, unplug that card from your computer motherboard and use the integrated graphics on your CPU instead (assuming your CPU actually has integrated graphics). Doing this will reduce the number of possible points of failure in the guide-- Mac OS X tends to have a lot of problems with discrete graphics cards during the setup process.

If possible, connect your monitor to the DVI port of your computer's integrated graphics. The Mac OS X installer sometimes has problems with HDMI and VGA.

NOTE: If you're installing Mac OS X on a computer that already has Windows installed on a separate internal hard drive, you may have to enable AHCI for Windows beforehand. Otherwise, Windows won't boot afterwards. Also, after installing Mac OS X, you should also sync your clock on Windows with Mac OS X.

4. Set up your motherboard's BIOS
The BIOS is basically a settings page for your motherboard. To enter the BIOS on my own computer's Gigabyte P67A-D3-B3 motherboard, I have to press the delete key when it boots (before the operating system starts). Different manufacturers set different keys for opening the BIOS.

NOTE: If you have a newer Gigabyte motherboard that uses the UEFI interface instead of BIOS, check out our guide for setting up the UEFI instead. New motherboards with the LGA 1150 socket (the boards that support Intel "Haswell" processors) generally don't need much tweaking at all.

If your Hackintosh already has Mac OS X Snow Leopard, Lion, or Mountain Lion installed, the only thing you'll need to change in the BIOS is the "Boot Device", so that USB drives have highest priority.

If your Hackintosh doesn't have any version of Mac OS X installed yet, you have to change a few extra BIOS settings. Before starting, reset all of your BIOS settings to their factory defaults. On Gigabyte motherboards, you can reset your BIOS settings to their default by selecting "Load Optimized Defaults" on the main page of the BIOS. Once your BIOS is running on its defaults, you need to change these three settings:

Boot Device - Change the boot device of your computer so that "USB-HDD" is first. You need to do this for Unibeast to work. After you finish installing Mac OS X, you should change this setting back to default, so that "Hard Disk" is the first boot device (this optional, but it will speed up your boot times).

HPET - Change this to 64-bit.

SATA Control Mode (your BIOS might call this a different name) - This will probably already be set to "SATA", "IDE", or "RAID". Change it to "AHCI". Mac OS X only works with AHCI.

Keep in mind that the BIOS on most motherboards do not support using a mouse, so you'll probably have to navigate through the BIOS with the arrow keys on your keyboard. Press "Enter" to change a selected option in the BIOS. On my Gigabyte motherboard, I have to press F10 to save my changes.

5. Boot into Unibeast
Restart your Hackintosh, and plug in your Unibeast USB drive. If things go well, your computer will boot from the USB drive instead of booting from your normal hard disk. You will then be able to view the Unibeast menu.

If you do not manage to reach the Unibeast menu, check your motherboard's BIOS settings to make sure that the changes you made in Step 4 were properly applied. If they were, but you still cannot boot from the Unibeast USB drive, unplug your USB drive, and go back to Step 1. Reformat your USB drive with Disk Utility and try again. If all else fails, try using a different USB drive for Unibeast.

At the Unibeast menu, select the name of your Unibeast USB drive, by using the left/right arrow keys on your keyboard, and then press the enter key (or return key) to start the OS X Mavericks installer.

In the worst case scenarios, instead of loading the Mac OS X installer, you may end up at a dark gray screen that tells you to restart your computer (a kernel panic), or you may end up with a small crossed-out sign (a loading error). If you get a kernel panic/loading error (or if the Mac OS X installer simply won't start within 10 minutes), you'll need to enter some boot flags.

To enter boot flags, manually restart your computer by pressing your computer's power button. Then, once you've booted back into the Unibeast menu, try typing any necessary boot flags before pressing the enter/return key. Check out this list of common boot flags for reference ( PCIRootUID=0 and -x are two popular boot flags).

6. Install Mavericks

Continue, and you will eventually come up to a page that asks you for a "destination" for your Mac install. Select the hard drive that you want to install OS X Mavericks on, and continue.

If you're installing Mavericks on an empty hard drive, the hard drive selection box will be blank. You'll have to erase that hard drive with Disk Utility first (check out Step 4 of our Snow Leopard installation guide for more details).

Otherwise, select the hard drive you want to install OS X Mavericks on, and click "Install". Mavericks will now install itself. This will take at least 30 minutes.

Restart. If your Hackintosh already had Mac OS X Snow Leopard, Lion, or Mountain Lion installed beforehand, you can unplug the Unibeast USB drive. Otherwise, keep the USB drive plugged in. At the boot screen, you'll see an icon for the hard drive where you installed Mavericks. Select it (use the arrow keys on your computer) and press "Enter".

If everything works properly, then Mavericks will boot. Mission accomplished!

Once again, if you get a kernel panic/loading error when you try to boot your new Mavericks installation (or if the installation simply won't start within 10 minutes), you'll need to enter some boot flags.

To enter boot flags, manually restart your computer by pressing your computer's power button. Then, once you've booted back into the Unibeast menu, try type any necessary boot flags before pressing the enter/return key. Check out this list of common boot flags for reference ( PCIRootUID=0 and -x are two popular boot flags).

7. Multibeast
Multibeast is a collection of kext files that you'll need to install for your Hackintoshes to have sound, internet, a high resolution screen, and more. Different Hackintosh builds require different Multibeast setups, though most setups are very similar. Find out what Multibeast options you need to install. If you have a Gigabyte GA-P67A-D3-B3 motherboard like me, check out my own Multibeast setup.

If you're just updating your Hackintosh from Mac OS X Snow Leopard, Lion, or Mountain Lion, you don't have to reinstall UserDSDT or Easybeast in Multibeast after installing OS X Mavericks. Mac OS X treats Mavericks as just another update-- this generally means that the only things you have to reinstall in Multibeast are audio kexts and ethernet kexts. You might also have to reinstall miscellaneous kexts, such as TRIM Enabler (for SSDs).

To run Multibeast in OS X Mavericks, you have to go the "Security" section of System Preferences in Mac OS X, go to the "General" section, and check "Anywhere" in the "Allow applications" section. After running Multibeast, you'll also probably want to change your BIOS settings back to normal (from Step 4).

Once that's done with, you should be running a fully functional copy of OS X Mavericks on your PC. If you plan on updating Mac OS X in the future, check out our guide to updating your Hackintosh. Congratulations!

Tuesday, September 17, 2013

Top Bangla Technology Blogs List

Saturday, July 27, 2013

Some of the common problems and solutions for Android!

The most common problem is Android's pattern lock. There are a lot of Android users who are using the device for securing the lock pattern. The only problem is when you forget your pattern lock, and you or someone else's pattern has repeated several times that your device is input pattern. Let's do whatever we resolved this problem?

The first solution:

After several incorrect pattern of your device on your email ID and password. So you have your Google email ID and password when the device is unlocked.

The second solution:

The phone has an internet connection. The e-mail ID and password to log in with is not. The pattern lock bypass

Use the following procedure to work.

1) Hold down the Volume Up key.

B) Hold down the Home button.

3) Hold down the power button.

4) When the phone button on the left.

5) The Android Recovery menu, Wipe data / factory reset and select. Remember, after factory reset your phone does not have any data. All will be deleted.

6) The phone will re-boot and can lock pattern.

Thursday, April 4, 2013

How to Install Red Hat Enterprise Linux 5

How to Install Red Hat Enterprise Linux 5

I am going to demonstrate a typical RHEL 5 (Red Hat Enterprise Linux 5) installation in this article. I usually do this kind of installation to host oracle test databases. It should be a good start for you and off course you can customize this process a little bit to suite your environment. I will use a DVD media for RHEL 5.

1. You need to put the DVD in your computer and boot the computer from that DVD.

· Install Options

2. Next the installer will offer you if you want to check the DVD media before installation. Choose skip here.

· Disk Check

3. Next you will see the first page of the Installation wizard. Press Next.

· Welcome Page

4. Select the Language that will be used in the rest of the installation.

· Installation Language

5. Select the keyboard type.

· Keyboard Type

6. Next you will be asked to put your installation number. You may skip entering this number if you don't have one.

· Installation Number

7. Now you need to tell what do you want to do with your disk. I usually choose "Create custom layout" and create the partitions I need on the disk.

· Hard Drive Partitioning

8. Here is our disk all free space if this is a fresh disk. This is a 30gb disk. Click "New" to create a partition.

· Create New Partitions

9. First partition will be boot partition size 100m. This will allow the OS to keep the boot record on a separate partition.

· Create Boot Partition

10. The second partition will be /tmp. The size of /tmp depends upon the oracle database I am going to install e.g. Oracle 10g requires 400mb of space in /tmp and Oracle 11g requires at least 1gb. I will create /tmp with a size of 1.5gb.

· Create Tmp Partition

11. Then comes the swap partition. The swap's size is dependent on the amount of physical RAM you have. I have 2G of RAM so the swap should be 1.5 times of 2G i.e. 3G. (This formula works for both Oracle 10g and 11g.)

· Create Swap Partition

12. The fourth partition will be /u01, a partition that will be used specifically for oracle software and database files. I am setting the size to 15gb.

· Create Partition for Oracle

13. The fifth partition is the "/" which is the root mount point for the operating system. We give it all the space left on the disk.

· Create root "/" Partition

14. This is how your partitioning scheme should look like when you are done.

· Review Partitions

15. This screen will ask you if you want to keep the boot record on the disk or not. Keep the defaults and press next.

· Boot Loader Options

16. Here we will configure the network. Provide a hostname manually. Then click the Edit Button against Network Devices, disable the ipv6 and provide a static IP Address for IPv4. NO DHCP.

· Network Configuration

17. Click on the map to choose a region for your Time Zone.

· Time Zone Settings

18. Provide the password for the root (Administrator User in Linux) user.

· Root Password

19. Select the OS packages that you need. Mostly leaving it as default should be okay. But it is a nice idea to install some development packages which oracle may need while installation. Select "Customize now" and press Next.

· Install Packages

20. All packages are listed. Right click on the package category and press "Select all optional packages" to install every thing in that category.

· Custom Packages

21. Press next here, to start the installation.

· Start Installation

22. This will take several minutes, before the installation is complete. Once the installation is complete the system will reboot. Remove any media from DVD before the system restarts.

· Installation Progress

23. After rebooting you will have to do some setup tasks. This is the Welcome page of the setup wizard. Press Next.

· Welcome to Post Installation setup

24. Accept the license agreement and pres Next.

· License Agreement

25. Disable the firewall and press Next.

· Firewall Settings

26. Set SELinux "Disabled". If you leave it at "enforcing" you are gonna have trouble with oracle later for example you may not be able to start "sqlplus".

· SELinux Settings

27. Leave kdump disabled.

· kdump Settings

28. Set the date and time.

· Date and Time Settings

29. Select to register at a later time.

· Product Registration

30. If you have chosen not to register then this page shows that your system is not setup for Updates.

· Registration Status

31. Use this page to create any additional users other then root.

· Additional Users

32. Setup your sound card.