Problems with Fedora 7 + Installing Xen

[Lakshmipathi]

I formatted the hard disk and installed Fedora 7 (since it comes with default Xen kernel )
I logged into machine , i'm getting following while trying to create New VM using virt-manager
See attached screen shot .....What's wrong here?

Unable to complete install '<type 'exceptions.ValueError'> Could not find an installable distribution at 'http://ubuntu.biz.net.id/intrepid/ubuntu-8.10-desktop-i386.iso'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/create.py", line 681, in do_install
dom = guest.start_install(False, meter = meter)
File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 811, in start_install
self._prepare_install(meter)
File "/usr/lib/python2.5/site-packages/virtinst/ParaVirtGuest.py", line 56, in _prepare_install
self._installer.prepare(guest = self, meter = meter)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 239, in prepare
self._prepare_kernel_and_initrd(guest, distro, meter)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 209, in _prepare_kernel_and_initrd
distro = distro)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 122, in acquireKernel
progresscb=progresscb, distro=distro, scratchdir=scratchdir)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 101, in _storeForDistro
raise ValueError, _("Could not find an installable distribution at '%s'" % baseuri)
ValueError: Could not find an installable distribution at 'http://ubuntu.biz.net.id/intrepid/ubuntu-8.10-desktop-i386.iso'
'

[b2bwild]

The problem is not with Xen, but the virt-manager itselft. even if you use Qemu or KVM.
Run virt-manager as root.

screenshot is very small, cant see clearly. are you running as root already?

[Lakshmipathi]

I'm running as root and I'm unable to maximize the screen shot of error..But errors says the above message ... (See attached screenshot,after this screen i'm getting error message about installation source)

"Unable to complete install: 'Could not find an installable distribution at 'http://ubuntu.biz.net.id/intrepid/ubuntu-8.10-desktop-i386.iso''

Unable to complete install '<type 'exceptions.ValueError'> Could not find an installable distribution at 'http://ubuntu.biz.net.id/intrepid/ubuntu-8.10-desktop-i386.iso'
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/create.py", line 681, in do_install
dom = guest.start_install(False, meter = meter)
File "/usr/lib/python2.5/site-packages/virtinst/Guest.py", line 811, in start_install
self._prepare_install(meter)
File "/usr/lib/python2.5/site-packages/virtinst/ParaVirtGuest.py", line 56, in _prepare_install
self._installer.prepare(guest = self, meter = meter)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 239, in prepare
self._prepare_kernel_and_initrd(guest, distro, meter)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 209, in _prepare_kernel_and_initrd
distro = distro)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 122, in acquireKernel
progresscb=progresscb, distro=distro, scratchdir=scratchdir)
File "/usr/lib/python2.5/site-packages/virtinst/DistroManager.py", line 101, in _storeForDistro
raise ValueError, _("Could not find an installable distribution at '%s'" % baseuri)
ValueError: Could not find an installable distribution at 'http://ubuntu.biz.net.id/intrepid/ubuntu-8.10-desktop-i386.iso'
'

[b2bwild]

Oh, sorry I didnt read the error correctly in first post.
You are running in Paravirtual mode.

The installation media path is for repository tree of the same linux disto.
When you have to install another operating system using ISO, you need to run in Full Virtualization.
So you can get this menu.



EDIT:
When you select media url. the example is given under text box.

http://server.example.com/distro/i386/tree

[Lakshmipathi]

Thanks b2bwild. Now i provided CentOS as installation source

Index of /centos/5/os/i386

It creates initrd image and allows storage and but then it throws following error message

(xend.err 'Error creating domain: I need 262144 KiB, but dom0_min_mem is 262144 and shrinking to 262144 KiB would leave only 235124 KiB free.')

I'm having 512MB RAM.

Then i changed /etc/xen/xend-config.sxp file and increased

dom0-min-mem 256

to

dom0-min-mem 512

and reboot machine with SElinux disabled...still getting the error about dom0_min_mem.

I'm using Fedora 7 KDE environment.

Any thoughts on this?

[b2bwild]

allocate less ram than the amount of ram allocated to Domain0

[Lakshmipathi]

Thanks b2bwild ..allocating less memory worked .. Now It shows me the installation steps to follow

[b2bwild]

Nice you made it.
give a try to xenner.
It will allow you to use xen, without booting xen kernel.