Public bug reported:
Since initramfs networking is rather limited, a simple flag to reset
networking afterwards (or not to generate netplan files) would be
valuable. The intended effect is to allow fully featured networking
tools to set up the network afterwards.
Use cases include the following, in comination with networking-enabled
initramfs:
* Multiple IPs on a single interface
* Adding search domains
* Unlocking root over SSH on a different network than will be used afterwards
* Using DHCP for initramfs and static later
There are numerous workarounds floating around, as well as questions on
this behaviour. Netplan has made this even more difficult to get around,
since it does not provide an equivalent to 'service networking restart'.
As of Ubuntu 20.04, I have not even found any workaround that actually
works.
Related:
dropbear-initramfs IFDOWN not working LP #1813394
Alternative approach with netplan in initramfs LP #1880717
What is creating /run/netplan/eth0.yaml? askubuntu #1228433
** Affects: initramfs-tools (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1880740
Title:
Provide a straightforward way to reset networking after initramfs
Status in initramfs-tools package in Ubuntu:
New
Bug description:
Since initramfs networking is rather limited, a simple flag to reset
networking afterwards (or not to generate netplan files) would be
valuable. The intended effect is to allow fully featured networking
tools to set up the network afterwards.
Use cases include the following, in comination with networking-enabled
initramfs:
* Multiple IPs on a single interface
* Adding search domains
* Unlocking root over SSH on a different network than will be used afterwards
* Using DHCP for initramfs and static later
There are numerous workarounds floating around, as well as questions
on this behaviour. Netplan has made this even more difficult to get
around, since it does not provide an equivalent to 'service networking
restart'. As of Ubuntu 20.04, I have not even found any workaround
that actually works.
Related:
dropbear-initramfs IFDOWN not working LP #1813394
Alternative approach with netplan in initramfs LP #1880717
What is creating /run/netplan/eth0.yaml? askubuntu #1228433
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