Hot answers tagged

16

In terminal, you can use diskutil to get information about the drive, including the device block size: $ diskutil info / | grep "Block Size" Device Block Size: 512 Bytes


10

First, note that Device Block Size is different from the block size in use by the filesystem. The former value as reported by diskutil refers to the raw block size used by the hardware. I haven't found an easy way to check the latter value by the command line, but you can just create a zero-byte file then do Get Info from the Finder. It will say 0 bytes, but ...


10

UPDATE An improved procedure for installing Windows 7 can be found at Installing Windows 7 Pro 64 bit without DVD or Flash Drive Note: The updated steps, for installing Windows 8.1 using the procedure given below, can be found here. My hardware and software differs from yours. I will first document how I tested my answer and then try to adapt the ...


10

Installing Windows 7 Pro 64 bit without DVD or Flash Drive Special thanks to user Rafa, who was able to correct this procedure so it now works with Windows 10. Here I assume your computer is configured as required by the Boot Camp Assistant. (In other words, you will be installing Windows to the 4th partition on disk 0.) Also, your firmware is up to ...


9

You must disable System Integrity Projection. Restart the computer, while booting hold down Command-R to boot into recovery mode. Once booted, navigate to the “Utilities > Terminal” in the top menu bar. Enter csrutil disable in the terminal window and hit the return key. Restart the machine and System Integrity Protection will now be disabled. source: ...


7

take a full backup to an external usb drive using a tool like Superduper or CarbonCopyCloner and boot it to make sure it's good (select disk using "Startup Disk" in System Preferences.) You need a good backup before messing with the partitions. Using Disk Utility (/Applications/Utilities/Disk Utility.app) select your internal drive in the left-hand column ...


7

If you have a MacBook Air you can "right-click" by placing two fingers on your trackpad and clicking with one of them. Of course this work when you are using OS X. You can configure this option (if it isn't already configured) by going to Settings > Trackpad > Secondary click If you are using Windows with Boot Camp instead, you should install the ...


7

According to the store pages, it looks like all the retina models have 8GB memory, with option for more, and as such you should choose the 64-bit version to make sure you can take advantage of all that memory in Windows. A 32-bit Windows installation would only be able to use 2GB/3GB of the available memory.


7

The OS X device block size can be determined by executing the following command from a Terminal window prompt: diskutil info / | grep "Block Size" Which will output the following information: Device Block Size: 512 Bytes The file system block size can be determined by using the stat utility: stat -f %k . Which will show you the Optimal file system I/...


7

The best way is to boot into your current OS X install, and download the Mountain Lion installer from the Mac App Store. When the installer asks which drive to install to, select your second partition. Internet Recovery is different to the Recovery HD partition. Generally… As long as you have a valid Recovery HD partition, trying to boot into ...


6

I'm not sure this is possible by default without holding down the ⌥ key at startup. You can make the Boot Camp partition always boot by selecting it in System Preferences → Startup Disk, but it sounds like this isn't what you want. However, if you're not adverse to installing additional software, I think rEFIt may do what you need. The section on Getting ...


6

Yes, you can do it. The instructions are originally for Windows 8. Some terminal commands might be a little different for Windows 10. You will need : Windows 10 x64 ISO file a running Windows installation real or virtualised a blank external hard drive Apple Bootcamp drivers (obtained from the BootCamp setup) on USB key Microsoft AIK Format and prepare ...


6

Here's an updated procedure for Windows 10, based on orkoden's excellent answer. I tested this process on a MacBookPro11,1 running OS X 10.11.5 (15F34). Throughout the process, directly connect all devices to your Mac. I found that certain operations failed more frequently if I used the USB hub in my monitor. In addition to the external drive that will ...


5

Using a virtual disk in VMware you can avoid dedicating space to Windows 7 that is just free space, unlike a dual-boot where you'd have to allocate a partition that has all the free space you will ever need. (Probably true with other VM solutions, but I don't know.) While a VMware virtual disk does not auto-shrink, it starts out small (on the host disk) ...


5

From Ubuntu: This is due to a bug (of sorts) in the package used to create the Ubuntu ISOs Since 11.10, Ubuntu ISOs have been "hybrid", meaning that the ISO can also be written bit-for-bit to a USB device to make it a working Live-USB, without having to use StartUp Disk Creator, UNetBootin, etc. Note that this "hybrid" is different from the OS X/Disk ...


5

Any system can contain embedded an hardware keylogger or trapdoor. Most of them do contain the last one. But a keylogger isn't as easy a task to integrate in a completly undetectable way. A keylogger will have to log. Here is the weak point where you will be able to detect it. Whichever is the way to log a keylogger will use, you will see something grow ...


5

Simply connect external hdd with enough storage and use Time Machine application (which is included in OS X) Here's tutorial from Apple


4

Macs use the EFI Firmware (BIOS for Windows). You need to download a special Mac ISO that allows to boot on both BIOS and EFI Systems. For Ubuntu 11.10 you can download the specific Mac image here: 64-bit Mac (AMD64) desktop CD By experience I know that the following distros allow to boot on EFI systems using the "standard" ISO: Debian, Fedora, Linux ...


4

In order to use the drive for both purposes, you would need to partition it into two. In my breakdown below, partition 1 is for moving data and partition 2 is for Time Machine, but this can be swapped around if you prefer. I would recommend formatting the partition on which you access data on in ExFAT. It is newer than FAT and does not have the 4GB file ...


4

With the older HFS file system, Apple's second attempt at a file system for the Macintosh, there could only be up to 65,535 allocation blocks on a disk. The block size was a function of the disk size in bytes divided by the maximum number of allocation blocks, 65,535. For small disks this was fine, but when disk sizes started to approach 1GB in size the ...


4

You can use BootChamp to quickly restart in Windows from OS X. To restart in OS X from Windows see OS X Lion - Start up using Mac OS X or Windows: Restart directly in Mac OS X from Windows: Click the Boot Camp icon in the system tray and choose “Restart in Mac OS X.” A more tedious way is to set the startup disk to the other OS every time and ...


4

This is getting increasingly harder over time. Instead of creating a bootable Linux partition, I find it much easier to simply install virtualBox and create a Linux virtual machine instead.


4

Note: El Capitan (OS X 10.11) prevents users from selecting rEFInd and common Linux distributions from the Startup Disk pane. The new preferred method is to install rEFInd into the an EFI partition. My answer, to an unrelated question, outlines this new preferred method to start the rEFInd Boot Manager and Linux operating systems. The answer, given below, ...


4

The new Keyboard driver on Bootcamp broke the connection for my keyboard under Windows 10 and it might break yours too. So after using the solution from Zidad for the last couple of months (thank you) I decided to find a better solution to be able to use the Fn button and all the volume and multimedia functions of the Apple keyboard, here is what you need ...


4

What you need to do is to create another partition on your Mac, and install Mavericks on it: On your El Capitan partition, open Disk Utility (in Utilities) and select the physical hard drive in your Mac. It should be titled "APPLE HDD ... MEDIA" or something similar: Click "Partition" and click the "+" sign at the bottom of the pie-chart hard drive. Select ...


4

Booting Ubuntu on a dual boot partition has a similar battery life to OS X, perhaps slightly shorter, due to less efficient optimization for the MacBook Pro's hardware. In a virtual machine, despite lots of "clever" optimizations and CPU hardware virtualization features, there are two complete operating systems, with two kernels, and two display managers* ...


3

When you buy Lion from the App Store, it downloads an application named Install Mac OS X Lion to your Applications folder. InstallESD.dmg is hidden inside this application. Since it's hidden, a Spotlight search normally won't show it; you need to find the installer application, right-click on it, choose Show Package Contents, and then navigate to the image ...


3

I'm not sure how likely it is that drivers tampered with the EFI. That said, you have a few options. You could try installing reFIT. This should bring up a boot menu regardless of your holding the Option key. You can find it here. You could try resetting the System Management Controller. I don't know so much about it to veritably say that this is ...


3

Installing rEFInd and following the included instructions does work for me using OS X 10.8 with FileVault2 and Debian GNU/Linux using grub-efi. In short: Use a protective MBR and install rEFInd to the efi system partition (esp) (use rEFInd's install.sh --esp). Rename the refind folder on the esp to BOOT and rename the efi file aswell to allow faster loading ...


3

Shut down your MacBook, then hold down Option ⌥ key and turn it on. You will see a boot menu, choose OS X. When logged in into OS X, click System Preferences > Startup Disk, and choose which OS to start by default. To set up Boot Camp drivers, download them via Boot Camp Assistant (WindowsSupport) folder, write the installers to a USB stick, and run from ...



Only top voted, non community-wiki answers of a minimum length are eligible