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Re: [Xen-users] "disks" -- Not understanding the docs at all

To: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Subject: Re: [Xen-users] "disks" -- Not understanding the docs at all
From: Jeff Blaine <jblaine@xxxxxxxxx>
Date: Mon, 18 Apr 2005 16:54:23 -0400
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Thanks Mark.

The whole disk naming method did not work.  The specific
method did work.

I mknod'd /dev/console and /dev/null to fix the "Warning:
unable to open initial console" message/hang and have
VM1 running now.

Mark Williamson wrote:
2.  sdb = Contains a fresh install of Fedora Core 3 to
          be used for domains, as prompted by the following:

            "The first step in creating a new domain is
            to prepare a root filesystem for it to boot off.
            Typically, this might be stored in a normal
            partition, an LVM or other volume manager partition,
            a disk file or on an NFS server. A simple way to
            do this is simply to boot from your standard OS
            install CD and install the distribution into
            another partition on your hard drive."

          sdb1 = /
          sdb2 = swap
          sdb3 = /tmp
          sdb5 = /var
          sdb6 = /data


Try:
disks = ['phy:sdb,sdb,w']

If that doesn't work (I can't remember if exporting whole disks works) then export the partitions individually: disks = [ 'phy:sdb1,sdb1,w', 'phy:sdb2,sdb2,w', 'phy:sdb3,sdb3,w' ... and so on.


Set the first entry in this list to calculate the> offset of the

domain's root partition, based on the

     domain ID. Set the second to the location of /usr if you
     are sharing it between domains (e.g. disk =
     ['phy:your_hard_drive%d,sda1,w' % (base_partition_number
     + vmid), 'phy:your_usr_partition,sda6,r' ]"

I understand the Python array creation in that and nothing
else :)


This is a more advanced feature of the comfig files, intended to allow you to pass an additional variable "vmid" into "xm create" and automatically generate the disk, network, etc settings for several domains using a single config file. It's rarely used and for your configuration you should probably ignore it.

Cheers,
Mark



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