If CentOS is installed on a USB flash drive, the system displays "the input signal is out of range ".

If CentOS is installed on a USB flash drive, the system displays "the input signal is out of range ".

I got a obsolete server, T220. Although I was a little older, I had to drum up and change some parts. Then start to install the system.

If you want to use Linux, you will have this record.

I have insufficient experience in Linux. From the Internet perspective, I chose CentOS 7 (in fact, I should use 6.5, 7 is too new, which causes a lot of trouble in the future ).

I chose to install a USB flash drive. For more information, see http://jingyan.baidu.com/article/a3a3f81188f74c8da2eb8a17.html.

Then the problem occurs.

Question 1:

I am installing a USB flash drive, set the boot item, and start to this interface.

So the problem arises. If you press Enter directly for installation, it will fail because the installation Source Path is incorrect. Press the Tab key:

Where,

It should be changed to vmlinuz initrd = initrd. img inst. stage2 = hd:/dev/sdb4quiet, where sdb4 varies depending on the machine and represents the device of your USB flash disk.

Question 2:

After the change, the GUI can be installed normally. However, on my server, the problem came again.

The display displays "the input signal is out of range ". Dizzy.

There are many solutions on the Internet, but none of them works. In CentOS 6, we usually add the "vga = 711" parameter during installation and startup, however, in CentOS 7, this method has no effect. Solution to issue 6 was unexpectedly successful !!!!

The solution is vmlinuz initrd = initrd. img inst. stage2 = hd:/dev/sdb4vga = 711, and then select a resolution based on your screen, you can successfully run the CentOS installation interface anaconda.