Public bug reported:
On Feisty Beta (upgraded from Herd 5), when changing hardware (in my
case, I had to replace the motherboard with 2 onboard NICs, luckily I
could replace it with the same model), /etc/iftab is not updated. So the
MAC adresses from the NICs on the old mainboard still exist in iftab,
preventing the NICs on the new mainboard from getting assigned to eth0
and eth1. Instead, they are assigned eth2 and eth3, in random order at
every boot (which is, IMHO, yet another bug).
I had to manually edit /etc/iftab and replace the old MAC adresses with
the new ones to fix this problem (actually, I'm assuming this is the
solution, I'll know for sure once I reboot the system). I only knew this
after reading about bug #49121.
IMHO, when any NIC which has a MAC adress in iftab, is no longer present
in the system at boot, it should be removed or commented out from
/etc/iftab. If the system is 'confused' whether the new NIC(s) should be
assigned eth0, eth1 or whatever, a warning should be displayed or a
dialog should show up, allowing the user to rectify the situation.
My system specs:
-MSI K8N mainboard
-Nvidia CK8S NIC (onboard), eth0
-Realtek RTL-8169 NIC (onboard), eth1
-Ubuntu Feisty Beta
If more info is needed, let me know.
ProblemType: Bug
Architecture: i386
Date: Tue Apr 3 14:04:18 2007
DistroRelease: Ubuntu 7.04
Uname: Linux simba 2.6.20-13-generic #2 SMP Sun Mar 25 00:21:25 UTC 2007 i686
GNU/Linux
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
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/etc/iftab not updated after hardware change
https://bugs.launchpad.net/bugs/102336
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