How to get eth0 and wlan0 back on Ubuntu Mate 18.04?

[Oliver Grawert]

hi,
Am Donnerstag, den 28.01.2021, 17:45 +0100 schrieb Ralf Mardorf via   
> > OTOH it's not really reasonable.
> However, back to the topic. How does the Grub config for the Grub
> config treat quotes?
> 

update-grub calls grub-mkconfig ... 

$ head -1 /usr/sbin/grub-mkconfig
#! /bin/sh
$

... so everything in /etc/default/grub needs to be POSIX shell
compliant.
i.e. values that contain spaces need to be in one single set of double
quotes and there may be no spaces around the equal sign ...

ciao
	oli
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