Xen: trying to install from cdrom or iso but failing

jonaskellens · 12-10-2009, 04:16 AM

Trying to install Endian firewall on my Xen-system but failing.

Code:

[root@xen vm]# virt-install --name endian --ram 512 --file /var/vm/endian/endian.img --file-size 8 --vnc --cdrom /dev/cdrom --network bridge:eth0 --network bridge:eth1
ERROR    Paravirtualized guests cannot install off cdrom media.

So I copy the endian cd-rom :

Code:

[root@xen vm]# dd if=/dev/cdrom of=/tmp/endian/endian.iso

But :

Code:

[root@xen vm]# virt-install --name endian --ram 512 --file /var/vm/endian/endian.img --file-size 8 --vnc --cdrom /tmp/endian/endian.iso --network bridge:eth0 --network bridge:eth1
ERROR    Paravirtualized guests cannot install off cdrom media.

Code:

[root@xen vm]# virt-install --name endian --ram 512 --file /var/vm/endian/endian.img --file-size 8 --vnc --location /tmp/endian/endian.iso --network bridge:eth0 --network bridge:eth1
Starting install...
Could not find an installable distribution at '/tmp/endian/endian.iso'
ERROR    Could not find an installable distribution at '/tmp/endian/endian.iso'

How can I install from a cdrom-image ?? Or do I really need to setup nfs (which will have the same effect I think) ?

jonaskellens · 12-10-2009, 08:11 AM

Forget the above, I haver worked around it by manually creating a disk-image and a configuration file.

However, I've come across another vehicle : network configuration !

This is my configuration file :

Code:

[root@xen ~]# cat /etc/xen/endian.cfg
import os, re
arch = os.uname()[4]

kernel = "/boot/vmlinuz-2.6.18-164.6.1.el5xen"

memory = 512
shadow_memory = 8
name = "endian"
vif = [ 'type=ioemu, bridge=eth0' ]
disk = [ 'file:/var/vm/endian/endian.img,hda,w', 'file:/tmp/endian/endian.iso,hdc:cdrom,r' ]
device_model = '/usr/lib/xen-default/bin/qemu-dm'
# boot on floppy (a), hard disk (c) or CD-ROM (d)
# default: hard disk, cd-rom, floppy
boot="dc"

sdl=0
vnc=1
vnclisten="0.0.0.0"
vncconsole=1
vncpasswd='endian'
stdvga=0
serial='pty'
usbdevice='tablet'

on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

When I start my vm, I get the following error :

Code:

[root@xen ~]# xm create endian.cfg
Using config file "/etc/xen/endian.cfg".
Error: Device 0 (vif) could not be connected. Hotplug scripts not working.

These are my network interfaces :

Code:

[root@xen ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:22:B0:68:73:B9  
          inet6 addr: fe80::222:b0ff:fe68:73b9/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13151 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1558 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1507358 (1.4 MiB)  TX bytes:156621 (152.9 KiB)

eth1      Link encap:Ethernet  HWaddr 00:24:21:54:70:22  
          inet addr:192.168.1.10  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::224:21ff:fe54:7022/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8300 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5475 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:819918 (800.7 KiB)  TX bytes:1188729 (1.1 MiB)
          Interrupt:253 Base address:0xc000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1463 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1463 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2405572 (2.2 MiB)  TX bytes:2405572 (2.2 MiB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:13151 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1558 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1559962 (1.4 MiB)  TX bytes:172357 (168.3 KiB)
          Interrupt:17 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1558 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13151 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:156621 (152.9 KiB)  TX bytes:1507358 (1.4 MiB)

virbr0    Link encap:Ethernet  HWaddr 00:00:00:00:00:00  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:51 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 b)  TX bytes:11001 (10.7 KiB)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:12538 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1220739 (1.1 MiB)  TX bytes:0 (0.0 b)

eth0 is connected to the internet, and I want the interface of my xen vm to be directly connected to the internet.
So I state :

Code:

vif = [ 'type=ioemu, bridge=eth0' ]

which should mean that the virtual network interface of my endian-vm is connected with the 'real' network interface eth0 of dom0 and traffic flowing into eth0 is passed to my endian-vm.

I don't specify an IP-address because I get one through dhcp (of my isp).

Can someone advise on these network-troubles ??