io-apic + timer doesn't work

Hello, and welcome here, at LQ!
And how can we help you?

Nobody can directly help you with such a vague post, but I can at least give you some advice on how to rephrase your request so that you can get some help:

1) Give it a descriptive title. For example, what you've used as the body of the post would do at a pinch for the title. That way readers will be able to see at once if it's the kind of question they might know the answer to.

2) Say what exactly didn't work. What happened and when did it happen? On boot? When running some particular software?

3) What distro are you using and what version?

4) Use copy-and-paste to post the exact error messages that you received (enclosed by [code][/code] brackets please). Did you check the kernel messages in /var/log? Anything relevant there?

The more information you give us, the more likely it is that someone can find out what is going wrong.

You might want to read this, then edit your post to include additional information, such as what distro you are using, what commands you issued, and so on.

Grub2 issue?