11 messages in com.xensource.lists.xen-develRe: [Xen-devel] Dom1 always does DHCP...| From | Sent On | Attachments |
|---|---|---|
| Mike Brady | 27 Jul 2004 02:50 | |
| Ian Pratt | 27 Jul 2004 03:17 | |
| Mark Williamson | 27 Jul 2004 04:14 | |
| Mike Brady | 27 Jul 2004 11:57 | |
| Barry Rountree | 27 Jul 2004 12:21 | |
| Ian Pratt | 27 Jul 2004 13:00 | |
| Rune Johan Andresen | 28 Jul 2004 01:26 | |
| Mike Brady | 28 Jul 2004 02:16 | |
| Mike Brady | 29 Jul 2004 02:12 | |
| Ian Pratt | 29 Jul 2004 03:16 | |
| Mike Wray | 30 Jul 2004 01:14 |
| Subject: | Re: [Xen-devel] Dom1 always does DHCP requests and vmid increasing ![]() |
|---|---|
| From: | Ian Pratt (Ian....@cl.cam.ac.uk) |
| Date: | 07/27/2004 03:17:10 AM |
| List: | com.xensource.lists.xen-devel |
I've been lurking on the list for a while, but I haven't tried Xen out until a few days ago. I have things working in general, but can't figure out a couple of things.
Firstly, domains other than domain 0 always do a DHCP request, no mater what is configured. If I have a static address configured in the OS rc scripts the DHCP address is assigned as the primary and the static address is the secondary.
There's nothing in your config file below to cause the kernel to do a DHCP. Are you sure that your rc scripts aren't doing it?
Secondly the vmid always +1 what ever the last vmid was no matter what the vmid is set to for the xm create command.
Ah -- this is a common confusion: 'vmid' != 'domid'.
The xmdefaults example configuration script is a slightly complex example that takes a parameter ('vmid') and hence enables you to use the same config file to start multiple domains, assuming you're assigning them consecutively numbered ip addresses and partitions.
When a domain starts, it's given a 'domid' which is a handle that xend uses to refer to the domain when talking to Xen (It's kind of like a PID in Unix). The very latest version of the tools hides domid's from users to avoid this confusion. (A VM's domid will change when it reboots or migrates, so it's a bad handle for users to use when talking about a domain).
The way most people user the tools is to write a separate config file for each domain they want to start, hence removing the part at the top of the script that expects a parameter to be set.
Ian
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