Re: Grub Config File to long

[Pascal Hambourg]

Le 22/05/2018 à 17:04, Dr. Heiko Pollmeier a écrit :
> Using different Ubuntu versions each update with new kernel forces
> update-grub. Even when I initiate for some reason it lasts several hours
> and generates .config file of over 100 (in words one hundred ) Mb size.
> The utmost length in time took 52 hours!

Is this a multiboot setup with multiple GNU/Linux systems installed and 
using GRUB ?
I have observed a similar behaviour under these conditions, although I 
could not really explain it. I suspect it is due to a misinterpretation 
of other system's grub.cfg file when generating grub.cfg.

If you have one active GRUB owned by one of the installed systems which 
has menu entries to boot the other systems, you can try this : on each 
system which does not own the active GRUB, disable os-prober (uninstall 
os-prober, remove/disable /etc/grub.d/30_os-prober or add 
GRUB_DISABLE_OS_PROBER=true in /etc/default/grub) and run update-grub to 
generate a (hopefully) short grub.cfg. After you have done this on all 
systems which do not own the active GRUB, run update-grub on the system 
which owns the active GRUB.