Bug#1015287: dropbear-initramfs: Configure dropbear to use VLAN

[Guilhem Moulin]

Control: reassign -1 initramfs-tools-core

On Mon, 18 Jul 2022 at 22:17:09 +0100, Graham Cobb wrote:
> I have it working on one system but when I try to use it on a second system 
> it doesn't work.
> This second system is a server which is connected directly to a VLAN trunk, 
> so the IP config
> needs to specify a VLAN to use.
> 
> I tried using the kernel command line "ip=" to specify the interface name 
> with a VLAN id
> in the same format as used in /etc/network/interfaces:
> 
> ip=192.168.0.205name.a.b.c:eth0.100::192.168.0.1:
> 
> However, this did not work.
> 
> It would be great if I could use dropbear-initramfs on the host systems
> which are directly connected to the VLAN trunk.

The network configuration routine isn't implemented in src:dropbear but in
initramfs-tools-core's 
/usr/share/initramfs-tools/scripts/functions:configure_networking().
All dropbear-initramfs does is to call that function in its hook script.

AFAICT initramfs-tools=0.140ubuntu14 adds vlan (and IPv6) support but I
don't know if these patches are viable for Debian.

-- 
Guilhem.


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Bug#1015287: dropbear-initramfs: Configure dropbear to use VLAN

[Graham Cobb]

Package: dropbear-initramfs
Version: 2022.82-3
Severity: wishlist

I have recently started using dropbear-initramfs to try to help with situations
where boot problems need to be resolved remotely.

I have it working on one system but when I try to use it on a second system it 
doesn't work.
This second system is a server which is connected directly to a VLAN trunk, so 
the IP config
needs to specify a VLAN to use.

I tried using the kernel command line "ip=" to specify the interface name with 
a VLAN id
in the same format as used in /etc/network/interfaces:

ip=192.168.0.205name.a.b.c:eth0.100::192.168.0.1:

However, this did not work.

It would be great if I could use dropbear-initramfs on the host systems
which are directly connected to the VLAN trunk.


-- System Information:
Debian Release: bookworm/sid
  APT prefers testing
  APT policy: (900, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.16.0-5-amd64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_IE.utf8, LC_CTYPE=en_IE.utf8 (charmap=UTF-8) (ignored: LC_ALL 
set to en_IE.utf8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages dropbear-initramfs depends on:
ii  busybox  1:1.35.0-1
ii  dropbear-bin 2022.82-3
ii  initramfs-tools  0.140
ii  udev 250.4-1

Versions of packages dropbear-initramfs recommends:
ii  cryptsetup-initramfs  2:2.4.3-1

dropbear-initramfs suggests no packages.

-- debconf-show failed