Mandos-Dev Digest, Vol 52, Issue 1

[Bryon Roche]

On Tue, Jan 7, 2020 at 12:00 pm, mandos-dev-request at recompile.se wrote:
> 
> 
> Message: 1
> Date: Mon, 6 Jan 2020 13:07:40 +0100
> From: Henning Reich <mandos at qupfer.de>
> To: mandos-dev at recompile.se
> Subject: Ubunutu 19.10 (setsid not found)
> Message-ID:
> 	<CAHdhe5RKK7Vjex32xXgqZxDP8UEhVahyK_5KmPXVjc0OJeZBbQ at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> Hi,
> maybe someone can help for a "elegant" solution ;-)
> 
> I'm trying to get an unattended boot of a fresh installed Ubuntu 
> 19.10.
> The basic setup works. I mean:
> But if I boot it, I got an error:
> /scripts/init-premount/mandos: line 180: setsid: not found
> 

Setsid is part of util-linux, so it should be present on pretty much 
every debian system.  You (and the package developers) will likely need 
to petition to get setsid re-added as a busybox applet for 
initramfs-tools' busybox.  In the meantime, you can add an 
initramfs-tools hook to add setsid and libc to the initramfs (or a 
bigger busybox like from the busybox-static package).  I haven't 
reviewed the current initramfs, maybe in newer debian/ubuntu the 
workflow that needs setsid could also be different, but probably not, 
since mandos wants to effectively start a daemon at early-boot time.  
It will increase your initramfs size considerably, but on a regular 
ubuntu system they're not exactly small anyway, so I'd go with writing 
a hook or whatnot (as detailed in initramfs-tools docs) to add 
util-linux's setsid and libc6 to your initramfs.

> Quick & Dirty solution is to remove "setsid" from the mandos script,
> but I think there was/is a reason setsid is used. Maybe I have to add
> setsid manual to the initramfs? But how? Or how did you solve this
> issue? Or does nobody use  a (non LTS) ubuntu?
> 
> Thanks and have a nice 2020
> henning
> 
> 
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> End of Mandos-Dev Digest, Vol 52, Issue 1
> *****************************************