(IMG)镜像文件在windows、Ubuntu、Mac 三种操作系统的烧录方法
2016-01-15 15:42
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Installation/FromImgFiles
Contents Windows Ubuntu Mac OS X |
please refer instead to
../FromUSBStick (to install an ISO image on a USB flash drive) or
BurningIsoHowto (to burn an ISO image onto a CD-ROM).
The Ubuntu 9.04 netbook remix and some specialized machine images are distributed as disk image files, called IMGs. This page describes how to install from a .IMG file.
You need to write the downloaded IMG image to a device that your computer can boot from. For netbooks this is usually a flash memory device, such as a USB flash drive or SD memory card. You can also write the IMG file to an external USB hard
drive, although these instructions use the term "flash media". The device must have sufficient capacity for the install (1 GB or larger is recommended), and you may need a USB adapter or SD card reader on your computer in order to write to it.
Warning: This will destroy all data on the destination device. Please backup all data to other media before proceeding.
Be sure to verify that your computer supports booting from the device you have selected for installation. Many computers can boot from a USB drive, and some from other sources. Check the documentation on your specific model of computer for
the procedure to boot from the selected device.
The
GettingUbuntu page has links to the IMG and ISO image files, as well as other methods of
GettingUbuntu.
MD5 Sums
Before writing your flash, it is highly recommended that you verify the md5 sum (hash) of the .img file. For instructions, please seeHowToMD5SUM. For the current list of Official Ubuntu MD5 hashes, see the MD5SUMS file for the release you're using under
http://releases.ubuntu.com (and optionally the
PGP signatures in the MD5SUMS.gpg file), or see
UbuntuHashes. This ensures that the file was not damaged during the download process and is 100% intact.
Windows
Graphical Interface
![](https://help.ubuntu.com/community/Installation/FromImgFiles?action=AttachFile&do=get&target=win32imagewriter.jpg)
Visit the Ubuntu download site (for example, http://www.ubuntu.com/download/desktop ) and download the *.ISO file corresponding to the version of Ubuntu that you want (you probably want Ubuntu 12.04 for 64-bit PCs)
Download Disk Imager from http://sourceforge.net/projects/win32diskimager/files/Archive/win32diskimager-v0.9-binary.zip/download and extract that ZIP file to a new folder. Open up that folder, then double-click
Win32DiskImager in the folder. You should see a window like the screen shot above.
Insert your flash media
Note the drive letter assigned to your flash media
Start Disk Imager
Select the downloaded file and target device, and click "Write"
Remove your flash media when the operation is complete
Command Line Interface
Download the desired .img fileDownload flashnul from http://shounen.ru/soft/flashnul/index.html#download
Attach your USB drive
Run flashnul -p
Note the physical device number for the USB drive
Run flashnul <number obtained in prior step> -L \path\to\downloaded.img
Answer "yes" if the selected destination device is correct
Remove your USB drive when the command completes
Ubuntu
Graphical Interface (up to 12.10, for later versions use the commandline method below)
![](https://oscdn.geek-share.com/Uploads/Images/Content/201912/07/8d3a9380740aec84062b978e68c1ffbd.png)
Download the desired .img file
Install the usb-imagewriter package
If your release does not include this, download it from
Oliver's PPA
If imagewriter fails to launch, you may need to install python glade2 support. Install the python-glade2 package or Run
sudo apt-get install python-glade2
If your release does not include it and you are running 9.04 Jaunty Jackalope then run this command from the console:
sudo apt-get install usb-imagewriter
Open Applications -> Accessories -> Image Writer
KDE users will find this in Applications -> Utilities -> Image Writer
from the command line, from the console:
sudo imagewriter
on some usb-imagewriter versions (console command: imagewriter) the application fails to write if the image path contains blank spaces, exiting with "IndexError:
list index out of range".
Insert your flash media
Select the downloaded file and flash device, and click "Write to Device"
Remove your device when the operation is complete
Command Line Interface
Be very careful about which /dev device you write to. If your machine is booted up off of disk /dev/sda, and your usb stick is on /dev/sdc, and you accidentally write to /dev/sda instead of /dev/sdc, your filesystem will be irreparably damagedand you will lose all of your files.
Download the desired .img file
Open a terminal and insert your flash media
Look at the output of sudo dmesg | tail -20 to determine the device node assigned to your flash media (ignore the device number; e.g. /dev/sdc, not sdc1)
Example output of dmesg, where the device node is 'sdc':
[ 5046.396364] usb-storage: device scan complete
[ 5046.397075] scsi 10:0:0:0: Direct-Access USB Flash Memory 1.00 PQ: 0 ANSI: 0 CCS
[ 5047.068761] sd 10:0:0:0: [sdc] Mode Sense: 23 00 00 00
[ 5047.068769] sd 10:0:0:0: [sdc] Assuming drive cache: write through
[ 5047.075021] sdc: sdc1
[ 5047.076459] sd 10:0:0:0: [sdc] Attached SCSI removable disk
Run sudo umount /dev/devicenode
Run sudo dd if=/path/to/downloaded.img of=/dev/devicenode bs=1M
Remove your flash media when the command completes (you may need to wait a few extra seconds for it to finish)
Mac OS X
Command Line Interface
Download the desired .img fileOpen a Terminal (in /Applications/Utilities/)
Run diskutil list to get the current list of devices
Insert your flash media
Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2)
Run diskutil unmountDisk /dev/diskN (replace
N with the disk number from the last command; in the previous example,
N would be 2)
Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN
bs=1m (replace /path/to/downloaded.img with the path where the image file is located; for example,
./ubuntu.img, /dev/rdiskN is faster than /dev/diskN). 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.
Run diskutil eject /dev/diskN and remove your flash media when the command completes
CategoryLive
CategoryLive「
文章摘自:https://help.ubuntu.com/community/Installation/FromImgFiles
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