Problem description:
I often see it, but I don't understand it. Somebody explain. thank you
Analysis:
Iso file generally takes ISO as the extension, which is a mirror image file formed by copying all the information on the CD. The file format is iso9660.
Many Linux operating system installation packages are published in the form of ISO files. After obtaining the corresponding ISO file, you can burn its contents to a CD. The CD made in this way is basically the same as the installation CD purchased. Start the computer with this CD, and you can install the Linux operating system.
This chapter discusses the installation method of hard disk, and there is no need to burn CD. But we need to read the information in the ISO file.
Operating ISO files under Linux
Under Linux, you can read the contents of the file xxx.iso from the /path directory by executing the command in the following format as root user.
In actual use, /path and xxx.iso should be modified according to the actual situation.
mount-t iso 9660-o loop XXX . iso/path
If you want to make an ISO file, please put the CD into the CD-ROM drive, and then execute the following copy command to copy the contents of the CD into an ISO file. In actual use, xxx.iso should be modified according to the actual situation.
cp /dev/cdrom xxx.iso
Operating ISO files under Windows
Under windows, operating ISO files generally requires special tools and software. Such as WinISO, WinImage, Dameon tools.
Wait a minute.
If you only want to read the contents of an ISO file, you can use WinRAR. WinRAR3.0 and above all support iso9660 files.
Format. Open ISO file with WinRAR, select the required content and extract it.
ISO file of Linux operating system installation disk
The iso installation file of Red Flag Linux4. 1 desktop version can be seen after being hung in the /mnt/iso directory in Linux environment.
If you carve this iso file into a CD, the contents of the CD you see are the same.
It is worth noting that there are two directories. One is images, which contains some image files of 1.44MB floppy disk, among which bootdisk.img can be used to make startup floppy disk for installation; The other is dosutils, which contains some DOS tools, such as rawrite.exe. With this software, you can write the image file of the floppy disk to the floppy disk.
Linux startup and installation method
This method needs to make a Linux startup disk.
First, read bootdisk.img from the images folder of the iso file and store it on the hard disk separately.
If it is under Linux, insert the floppy disk into the floppy drive, and then execute the following command to write bootdisk.img to the floppy disk:
Dd if=bootdisk.img of=/dev/fd0 If it is under DOS/WINDOWS, you should also read out the rawrite.exe in the dosutils folder in the iso file, save it in the same directory as bootdisk.img, then execute rawrite at the DOS prompt, insert the floppy disk as prompted, and write bootdisk.img into the floppy disk.
After making the Linux startup disk, use it to boot the computer. When prompted for the installation method, select hard disk installation.
Hard disk, and provide the correct location information of the iso file, you can start the installation program in the iso file.
Follow the prompts of the installer to complete the installation.
Install under the guidance of the installer. See "Starting a Virtual Host to Install Linux".