Public bug reported:
Description:
Enabling a wireless adapter causes the networking tool to write
incomplete/invalid data into /etc/networking/interfaces.
Involved hardware:
Intel Corporation PRO/Wireless 3945ABG Network Connection (rev 0.2)
Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
Output from /etc/init.d/networking restart:
[EMAIL PROTECTED]:/etc/init.d# ./networking restart
* Reconfiguring network interfaces...
/etc/network/interfaces:14: too few parameters for iface line
ifdown: couldn't read interfaces file "/etc/network/interfaces"
/etc/network/interfaces:14: too few parameters for iface line
ifup: couldn't read interfaces file "/etc/network/interfaces"
Reproduction:
- open network config tool, i find three unnamed devices listed
* wireless
* cabled
* modem
cabled is checked and working (RTL-8139/8139C/8139C+)
- add a profile name, e.g. "Homebase", click the ok-button
- configure the wireless adapter: SSID, WEP, KEY, DHCP, close dialog
-> Progressbar appears
After the progressbar closes all network connections are non functional
and there is no way returning to a working configuration using the
Network tool.
More things i tried:
- Adding another WLAN adapter that is known to work out of the box (orinoco
driver)
* Adapter is detected and listed as eth2, configuration fails
- Restoring cabled network by entering static ip information
* No go, none of the adapters work
Sample of a working /etc/network/interfaces:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
Sample of a defective /etc/network/interfaces:
auto lo
iface lo inet loopback
auto eth2
iface eth2 inet dhcp
auto ath0
iface ath0 inet dhcp
auto wlan0
iface wlan0 inet dhcp
iface eth0 inet
address 192.168.1.4
netmask 255.255.255.0
gateway 192.168.1.254
auto eth0
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
Network config tool breaks /etc/network/interfaces
https://launchpad.net/bugs/82803
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