如何使用Mac创建Ubuntu live USB？

问题描述

我想在Mac上创建一个Ubuntu live USB stick，用于在另一台机器上安装Ubuntu。我该如何做到这一点？

最佳解决方法

取自here：

We would encourage Mac users to download Ubuntu Desktop Edition by burning a CD. But if you prefer to use a USB stick, please follow the instructions below.

Note: this procedure requires that you create an .img file from the .iso file you download. It will also change the filesystem that is on the USB stick to make it bootable, so backup all data before continuing.

Tip: Drag and drop a file from Finder to Terminal to ‘paste’ the full path without risking typing errors.

1. Download Ubuntu Desktop

2. Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight)

3. Convert the .iso file to .img using the convert option of hdiutil. Example:

   hdiutil convert -format UDRW ~/path/to/target.iso -o ~/path/to/ubuntu.img 

   Note: OS X tends to put the .dmg ending on the output file automatically.

4. Run diskutil list to get the current list of devices

5. Insert your flash media

6. Run diskutil list again and determine the device node assigned to your flash media
   (e.g. /dev/disk2)

7. Run

   diskutil unmountDisk /dev/diskN 

   (replace N with the disk number from the last command; in the previous example, N would be 2)

8. Execute the following command while replacing /path/to/downloaded.img with the path where the image file is located; for example, ./ubuntu.img or ./ubuntu.dmg).

   sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m 

   • Using /dev/rdisk instead of /dev/disk may be faster.
   • If you see the error dd: Invalid number '1m', you are using GNU dd. Use the same command but replace bs=1m with bs=1M.
   • If you see the error dd:/devdiskN: Resource busy, make sure the disk is not in use. Start the Disk Utility.app and unmount (don’t eject) the drive.

9. Run diskutil eject /dev/diskN and remove your flash media when the command completes

10. Restart your Mac and press Alt while the Mac is restarting to choose the USB-Stick

次佳解决方法

使用适用于Mac OS的unetbootin可以非常轻松地完成这项工作 – 好处是它不需要在简单的GUI上点击几下就可以了。

(请注意，这仅适用于较新的Intel Mac，不幸的是，它不适用于较旧的PowerPC机器。)

第三种解决方法

您可以尝试按照ubuntu.com上的说明进行操作。

How to create a bootable USB stick on OS X

有用的链接

此外，您可以尝试查看其中一些链接以获取帮助：

• How to install Ubuntu on MacBook using USB Stick (help.ubuntu.com)

• How To Create A Portable Ubuntu Installation USB On The Mac (makeuseof.com)

参考资料

• How do I create an Ubuntu live USB using a Mac?