Network is disabled after a netboot live installation

[Saivann Carignan]

Binary package hint: ubiquity

When booting ubuntu LiveCD environment from a nfs share (https://wiki.ubuntu.com/LiveCDNetboot), casper add a few lines in /etc/network/interfaces which avoid network-manager taking down the network device.

The problem is that after installing ubuntu on hard disk through ubiquity, /etc/network/interfaces still contains these lines and prevent Network-Manager to manage the device. Network-manager simply report "unmanaged device" until you remove these lines and reboot the computer.

This bug is somewhat related to bug #268005 which does not happen anymore due to current casper workaround. If bug #268005 can be fixed without using the current casper workaround, it would also fix this bug. Otherwise, ubiquity seems to be the only place to fix this in the mean time.

Steps to reproduce :

1. Follow steps to boot Live CD from nfs share (https://wiki.ubuntu.com/LiveCDNetboot)
2. Install ubuntu to hard drive.
3. Boot ubuntu from hard drive.

Result : Network manager does not manage the network and won't manage it until you know that the problem belong to /etc/network/interfaces and that you remove casper configuration.

[Brian Pitts (bpitts)]

This bit us at Free IT Athens when we started doing automated installations from modified live cds. My workaround is to make 'sed -i "/manual/d" /target/etc/network/interfaces' part of the sequence of commands we preseed in ubiquity/success_command.

[Fabio Marconi (fabiomarconi)]

Hello
I close this old report.
If it afflict again, please set again the status to new.
Thanks
Fabio
---
Ubuntu Bug Squad volunteer triager
http://wiki.ubuntu.com/BugSquad