AW: [Fedora-xen] interface tun0 does not exist! -> HALF SOLVED

Wed Sep 6 16:20:22 UTC 2006

Hello again,

I found the problem..stubid..

I have installed kernel-xen

With kernel-xen0 the interface are there.

Becose then I can use only 4Gb memory.

What can I to now do use 16G of memory ?

Thomas

  _____  

Von: fedora-xen-bounces at redhat.com [mailto:fedora-xen-bounces at redhat.com] Im
Auftrag von thomas.vonsteiger at bluewin.ch
Gesendet: Mittwoch, 6. September 2006 17:36
An: fedora-xen at redhat.com
Betreff: [Fedora-xen] interface tun0 does not exist!

Hello,

I can not setup any guest's becose of missing interfaces.

/var/log/xend-debug.log:

Link veth0 is missing.

This may be because you have reached the limit of the number of

interfaces that the loopback driver supports.  If the loopback driver is

a module, you may raise this limit by passing it as a parameter

(nloopbacks=<N>); if the driver is compiled statically into the kernel,

then you may set the parameter using loopback.nloopbacks=<N> on the

domain 0 kernel command line.

interface tun0 does not exist!

>From dmesg:

bnx2: eth0 NIC Link is Up, 1000 Mbps full duplex
bnx2: eth1 NIC Link is Up, 1000 Mbps full duplex
bnx2: eth2 NIC Link is Up, 1000 Mbps full duplex
bnx2: eth3 NIC Link is Up, 1000 Mbps full duplex

/etc/grub.conf:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/fcvg/slash
#          initrd /initrd-version.img
#boot=/dev/cciss/c0d0
default=0
timeout=10
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
title Fedora Core (2.6.17-1.2174_FC5xen)
        root (hd0,0)
        kernel /xen.gz-2.6.17-1.2174_FC5-PAE dom0_mem=512000
loopback.nloopbacks=128
        module /vmlinuz-2.6.17-1.2174_FC5xen ro root=/dev/fcvg/slash
        module /initrd-2.6.17-1.2174_FC5xen.img
title Fedora Core (2.6.17-1.2174_FC5smp)
        root (hd0,0)
        kernel /vmlinuz-2.6.17-1.2174_FC5smp ro root=/dev/fcvg/slash
        initrd /initrd-2.6.17-1.2174_FC5smp.img
title Fedora Core 5 (2.6.15-1.2054_FC5smp)
        root (hd0,0)
        kernel /vmlinuz-2.6.15-1.2054_FC5smp ro root=/dev/fcvg/slash
        initrd /initrd-2.6.15-1.2054_FC5smp.img

Hardware: HP DL380 G5, 16G memory, 4 nic's from type bnx2, eth0 - eth3 are
all there.

ifconfig -a prints eth0,eth1,eth2,eth3,lo

With kernel parameter "loopback.nloopbacks=128" i have the same problem.

Again with loopback.nloopbacks= .32,48,128,164,256. always no tun0 or
xenbr0.

What can be wrong here ?

Many thanks for any help.

Thomas

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