diskimage-builder/elements/dhcp-all-interfaces
Bob Fournier f8eba14d99 Handle failure of carrier check in dhcp-all-interfaces.sh
As described in the bug, there are conditions with certain switches
in which the interface is 'admin down'ed during initialization.
Doing a 'cat' on /sys/class/net/<interface>/carrier when it is
'admin down'ed produces an 'Invalid Argument' error and the script
terminates.  What this fix does is ignore failures of the 'cat'
operation (by '|| echo 0') and place the link up inside the retry
loop.

Change-Id: I4f098aa5078b8482681394a3e9a6b17ed4bd4451
Closes-Bug: 1654046
2017-01-12 10:36:43 -05:00
..
install.d Handle failure of carrier check in dhcp-all-interfaces.sh 2017-01-12 10:36:43 -05:00
element-deps dhcp-all-interfaces depends on dib-init-system 2016-04-22 09:23:11 +10:00
package-installs.yaml Use generic "dhcp-client" name 2016-04-22 11:31:54 +10:00
pkg-map Fix OpenSUSE support 2016-05-03 22:23:51 -07:00
README.rst Add Gentoo to the dhcp-all-interfaces element 2016-04-21 16:40:06 -05:00

===================
dhcp-all-interfaces
===================
Autodetect network interfaces during boot and configure them for DHCP

The rationale for this is that we are likely to require multiple
network interfaces for use cases such as baremetal and there is no way
to know ahead of time which one is which, so we will simply run a
DHCP client on all interfaces with real MAC addresses (except lo) that
are visible on the first boot.

On non-Gentoo based distributions the script
/usr/local/sbin/dhcp-all-interfaces.sh will be called early in each
boot and will scan available network interfaces and ensure they are
configured properly before networking services are started.

On Gentoo based distributions we will install the dhcpcd package and
ensure the service starts at boot.  This service automatically sets
up all interfaces found via dhcp and/or dhcpv6 (or SLAAC).