KVM - Modify from IDE to VirtIO

Asked Jul 26 '19 at 20:48

Active Jul 26 '19 at 21:28

Viewed 368 times

I imported a CentOS 7 guest from XenServer to KVM.

After importing it into KVM the disk bus in use is the IDE.

I need to change the disk bus from IDE to VirtIO because VirtIO has better performance.

I have seen many forums... No solution so far... =[

How can I do this?

NOTE: When I change disk settings in Virtual Machine Manager (virt-manager) the grub menu is displayed, but the guest OS does not start.

edited Jul 26 '19 at 21:28

asked Jul 26 '19 at 20:48

Eduardo Lucio

Why doesn't it start? – Michael Hampton Jul 26 '19 at 21:09
@MichaelHampton This is precisely my question ... The grub menu is displayed, but the OS does not start. – Eduardo Lucio Jul 26 '19 at 21:25
What is the grub command line you executed? What happens when you try to run it? – Michael Hampton Jul 26 '19 at 21:27
I simply choose the first option from the grub menu when the machine starts. – Eduardo Lucio Jul 26 '19 at 21:31
OK, but what is it running? You need to actually go in and look at it. – Michael Hampton Jul 26 '19 at 21:36
Where can I get the information you need? – Eduardo Lucio Jul 26 '19 at 21:38
You can select the grub menu entry, and press `e`. – Michael Hampton Jul 26 '19 at 22:43

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