** Description changed:
After I updated form breezy to dapper, the loopback device was not
running any more. This happened on two machines.
-----------------
after booting:
-----------------
ifconfig
eth0 Protokoll:Ethernet Hardware Adresse 00:50:FC:8B:CD:1D
inet Adresse:192.168.0.20 Bcast:192.168.0.255 Maske:255.255.255.0
inet6 Adresse: fe80::250:fcff:fe8b:cd1d/64
Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:259 errors:0 dropped:0 overruns:0 frame:0
TX packets:321 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:57545 (56.1 KiB) TX bytes:35452 (34.6 KiB)
Interrupt:177 Basisadresse:0xf00
--------------------------
try to start loopback
--------------------------
sudo /etc/init.d/loopback start
* Starting basic networking...
-------------------------
doesn't do anything
-------------------------
ifconfig
eth0 Protokoll:Ethernet Hardware Adresse 00:50:FC:8B:CD:1D
inet Adresse:192.168.0.20 Bcast:192.168.0.255 Maske:255.255.255.0
inet6 Adresse: fe80::250:fcff:fe8b:cd1d/64
Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:369 errors:0 dropped:0 overruns:0 frame:0
TX packets:470 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:73551 (71.8 KiB) TX bytes:53347 (52.0 KiB)
Interrupt:177 Basisadresse:0xf00
-----------------
try it with ifup
-----------------
sudo /sbin/ifup --allow auto lo
/sbin/ifup: interface lo already configured
------------------
ok, first stop it
------------------
/etc/init.d/loopback stop
* Stopping basic networking...
-------------------
and start again
-------------------
/etc/init.d/loopback start
* Starting basic networking...
-------------------
and see: it's up
-------------------
ifconfig
eth0 Protokoll:Ethernet Hardware Adresse 00:50:FC:8B:CD:1D
inet Adresse:192.168.0.20 Bcast:192.168.0.255 Maske:255.255.255.0
inet6 Adresse: fe80::250:fcff:fe8b:cd1d/64
Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:974 errors:0 dropped:0 overruns:0 frame:0
TX packets:1140 errors:0 dropped:0 overruns:0 carrier:0
Kollisionen:0 Sendewarteschlangenlänge:1000
RX bytes:181262 (177.0 KiB) TX bytes:131295 (128.2 KiB)
Interrupt:177 Basisadresse:0xf00
lo Protokoll:Lokale Schleife
inet Adresse:127.0.0.1 Maske:255.0.0.0
inet6 Adresse: ::1/128 Gültigkeitsbereich:Maschine
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
Kollisionen:0 Sendewarteschlangenlänge:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
------------------------
as a workaround, I put the command
ifconfig lo up
at the end of /etc/init.d/bootmisc.sh
+ ------------------------
+ /etc/network/interfaces:
+
+ 1 # This file describes the network interfaces available on your system
+ 2 # and how to activate them. For more information, see interfaces(5).
+ 3
+ 4 # The loopback network interface
+ 5 auto lo
+ 6 iface lo inet loopback
+ 7
+ 8 # This is a list of hotpluggable network interfaces.
+ 9 # They will be activated automatically by the hotplug subsystem.
+ 10 auto eth0
+ 11
+ 12 # The primary network interface
+ 13 iface eth0 inet static
+ 14 address 192.168.0.20
+ 15 netmask 255.255.255.0
+ 16 gateway 192.168.0.1
+ 17
+
+ --------------
+
Stefan
--
[dapper update] loopback device not startet
https://launchpad.net/bugs/56746
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