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xen-users
[Xen-users] About MAC address
Hi folks,
Debian Etch
Xen
On cloning disk.img I suppose it also copies the MAC address of the
original image to the new image resulting in "ping hostname" unable to
find the new hostname.
Following is my test;
# dd if=/vserver/domains/xen5.satimis.com/disk.img
of=/vserver/domains/xen6.satimis.com/disk.img bs=4k
# dd if=/vserver/domains/xen5.satimis.com/swap.img
of=/vserver/domains/xen6.satimis.com/swap.img bs=4k
# xm list --long xen5.satimis.com
(domain
(domid 3)
(on_crash restart)
(uuid e1074e82-9bbc-8fcd-2e74-e6ab66a3017d)
(bootloader_args )
(vcpus 1)
(name xen5.satimis.com)
(on_poweroff destroy)
(on_reboot restart)
(bootloader )
(maxmem 32)
(memory 32)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(start_time 1221791564.86)
(cpu_time 3.132796221)
(online_vcpus 1)
(image
(linux
(kernel /boot/vmlinuz-2.6.18-xen)
(args 'root=/dev/hda1 ro ')
(rtc_timeoffset 0)
(notes
(HV_START_LOW 4227858432)
(FEATURES
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
)
(VIRT_BASE 3221225472)
(GUEST_VERSION 2.6)
(PADDR_OFFSET 3221225472)
(GUEST_OS linux)
(HYPERCALL_PAGE 3222278144)
(LOADER generic)
(SUSPEND_CANCEL 1)
(PAE_MODE no)
(ENTRY 3222274048)
(XEN_VERSION xen-3.0)
)
)
)
(status 2)
(state -b----)
(store_mfn 899538)
(console_mfn 899537)
(device
(vif
(uuid 18904eab-6d22-da74-79f0-c86198a01e4a)
(script vif-bridge)
(ip 192.168.0.115)
(mac 00:16:3e:32:ab:e7)
(type netfront)
(backend 0)
)
)
(device
(vbd
(uname file:/vserver/domains/xen5.satimis.com/disk.img)
(uuid 505962e1-ddc4-7987-e731-eeda038c8ba1)
(mode w)
(dev hda1:disk)
(backend 0)
(bootable 1)
)
)
(device
(vbd
(uname file:/vserver/domains/xen5.satimis.com/swap.img)
(uuid c7e5ed00-fa70-3683-d66f-fba6feff5a69)
(mode w)
(dev hda2:disk)
(backend 0)
(bootable 0)
)
)
(device
(console
(protocol vt100)
(location 2)
(uuid ca9ca5fb-9cee-6571-d064-83e2d8ddd894)
)
)
)
* end *
# xm list --long xen6.satimis.com
(domain
(domid 2)
(on_crash restart)
(uuid 07a8b42b-acfd-ec79-ce19-83f843564db1)
(bootloader_args )
(vcpus 1)
(name xen6.satimis.com)
(on_poweroff destroy)
(on_reboot restart)
(bootloader )
(maxmem 32)
(memory 32)
(shadow_memory 0)
(cpu_weight 256)
(cpu_cap 0)
(features )
(on_xend_start ignore)
(on_xend_stop ignore)
(start_time 1221791309.54)
(cpu_time 3.313863599)
(online_vcpus 1)
(image
(linux
(kernel /boot/vmlinuz-2.6.18-xen)
(args 'root=/dev/hda1 ro ')
(rtc_timeoffset 0)
(notes
(HV_START_LOW 4227858432)
(FEATURES
'writable_page_tables|writable_descriptor_tables|auto_translated_physmap|pae_pgdir_above_4gb|supervisor_mode_kernel'
)
(VIRT_BASE 3221225472)
(GUEST_VERSION 2.6)
(PADDR_OFFSET 3221225472)
(GUEST_OS linux)
(HYPERCALL_PAGE 3222278144)
(LOADER generic)
(SUSPEND_CANCEL 1)
(PAE_MODE no)
(ENTRY 3222274048)
(XEN_VERSION xen-3.0)
)
)
)
(status 2)
(state -b----)
(store_mfn 888274)
(console_mfn 888273)
(device
(vif
(uuid bbc3e77d-e001-90f2-73f6-1d2a042c6e2b)
(script vif-bridge)
(ip 192.168.0.116)
(mac 00:16:3e:0a:c0:fb)
(type netfront)
(backend 0)
)
)
(device
(vbd
(uname file:/vserver/domains/xen6.satimis.com/disk.img)
(uuid 8ea4ccb1-212e-8fea-0b17-dc056ae7f75d)
(mode w)
(dev hda1:disk)
(backend 0)
(bootable 1)
)
)
(device
(vbd
(uname file:/vserver/domains/xen6.satimis.com/swap.img)
(uuid 182adee0-bc90-69f2-a7e5-19fc3656e1ac)
(mode w)
(dev hda2:disk)
(backend 0)
(bootable 0)
)
)
(device
(console
(protocol vt100)
(location 2)
(uuid dca93d80-8087-ed35-587d-dded9e45684f)
)
)
)
* end *
MAC Address
xen5.satimis.com :-
(mac 00:16:3e:32:ab:e7)
xen6.satimis.com
(mac 00:16:3e:0a:c0:fb)
# nano /etc/network/interfaces
making following change
iface eth0 inet static
address 192.168.0.116 = mac 00:16:3e:0a:c0:fb
gateway 192.168.0.1
netmask 255.255.255.0
Remark:-
Also tried;
address 192.168.0.116 = MAC of mac 00:16:3e:0a:c0:fb
address 192.168.0.116 = 00:16:3e:0a:c0:fb
address 192.168.0.116 = MAC of 00:16:3e:0a:c0:fb
None of them worked.
# /etc/init.d/networking restart
Reconfiguring network interfaces...=: Host name lookup failure
ifconfig: `--help' gives usage information.
Failed to bring up eth0.
done.
# ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:3E:0A:C0:FB
inet addr:192.168.0.116 Bcast:192.168.0.255
Mask:255.255.255.0
inet6 addr: fe80::216:3eff:fe0a:c0fb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:37 errors:0 dropped:0 overruns:0 frame:0
TX packets:31 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3154 (3.0 KiB) TX bytes:3138 (3.0 KiB)
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:0 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:0 (0.0 b) TX bytes:0 (0.0 b)
Please advise how to fix the problem. TIA
B.R.
Stephen Liu
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