Install centos 7 on a USB flash drive

There are a lot of installation tutorials on centos 7 on the Internet, but many of them are not clearly written in the pilot configuration in the early stage, which is depressing, so that the installation interface is always unavailable during installation yesterday. After some ups and downs, I finally found a proper solution (laruence's book is indispensable :)

I. Preparations

1. First you have to prepare a USB flash drive (the system image should be written in about 7 GB, so your USB flash drive should be at least 8 GB, but more is better)

2. You have to find a tool to write the image file to the USB flash drive. I use the ultraiso (Apsara stack) trial version.

3. Write the image file to the USB flash drive.

The specific steps in the above three steps (Graphic detailed tutorial of Shenma) on the Internet are mostly, kids shoes are Google by themselves, du Niang.

Ii. Focus

After starting with a USB flash drive, we will see the following interface:

At this point, select "Install centos 7" and press enter to go to the installation page. But the actual result is that we cannot go to the installation interface, but will encounter errors, such:

This should be the USB flash drive that has been found in the wood. This configuration needs to be completed in the previous step, but we do not know the file name of the USB flash drive in the previous step, therefore, simply check our device name in this step, and then return to the previous step to complete the configuration.

Enter "CD/dev" at the end of "#", and the following page is displayed:

SDA is the name of the file corresponding to my hard disk (my host has only one hard disk), so SDB is the file name corresponding to the U disk. We can see that it is sdb4. At this point, restart and return to the interface shown in the first image. Press the tab key to change vmlinuz initrd = initrd. IMG Inst. stage2 = HD: Label = centos \ x207 \ x20x86_64 Rd. live. change check quiet to vmlinuz initrd = initrd. IMG Inst. stage2 = HD:/dev/sdb4 quite

Press enter to go to the installation page...

Related blog reference

Http://www.111cn.net/sys/CentOS/63645.htm

There are already too many other

Install centos 7 on a USB flash drive