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Szerző: Devuan bug Tracking System
Dátum:  
Címzett: Mark Hindley
Tárgy: [devuan-dev] bug#697: marked as done (/etc/default/grub.d/xen.cfg: Extraneous output line causes error message at boot)
Your message dated Wed, 11 Jan 2023 10:08:27 +0000
with message-id <Y76Km/tYgjikJw4H@???>
and subject line Fixed in Debian #1016547
has caused the Devuan bug report #697,
regarding /etc/default/grub.d/xen.cfg: Extraneous output line causes error message at boot
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@???
immediately.)


--
697: https://bugs.devuan.org/cgi/bugreport.cgi?bug=697
Devuan Bug Tracking System
Contact owner@??? with problems
Package: xen-hypervisor-common
Version: 4.14.5+24-g87d90d511c-1
Severity: minor
File: /etc/default/grub.d/xen.cfg

Dear Maintainer,

When invoked via grub-mkconfig, xen.cfg outputs this as its first line:
        Including Xen overrides from /etc/default/grub.d/xen.cfg


The output of grub-mkconfig is expected to be redirected into a grub.cfg file.
Grub will read the grub.cfg at boot. Unfortunately, "Including" is not a
valid grub command. So when booting, grub emits this error message before
displaying its menu:
    error: can't find command `Including'.



The error message is obscured very quickly. It does not affect functionality
in any way. It requires booting on a VERY slow machine in order to read
the error message at all.


If I add a '#' to the start of the "Including", the resulting grub config file
boots with no error.
    echo "#Including Xen overrides from /etc/default/grub.d/xen.cfg"



I'm not sure if this line was intended to go into the generated config
file as a comment, or if it was intended to be shown to the user while
grub-mkconfig is running.


I have observed this and tested my fix against version
4.14.5+24-g87d90d511c-1 of xen-hypervisor-common. I have also checked
with the debian git at https://salsa.debian.org/xen-team/debian-xen/-/blob/master/debian/tree/xen-hypervisor-common/etc/default/grub.d/xen.cfg. This line
has not changed in a very long time.


I can also duplicate the behavior using grub-emu, with the output redirected
to a file.



Thanks for your time.

-Mag


-- System Information:
Distributor ID:    Devuan
Description:    Devuan GNU/Linux 4 (chimaera)
Release:    4
Codename:    chimaera
Architecture: x86_64


Kernel: Linux 5.10.0-16-amd64 (SMP w/2 CPU threads)
Locale: LANG=C, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
LSM: AppArmor: enabled

-- Configuration Files:
/etc/default/grub.d/xen.cfg changed:
echo "Including Xen overrides from /etc/default/grub.d/xen.cfg"
XEN_OVERRIDE_GRUB_DEFAULT=0
if [ "$XEN_OVERRIDE_GRUB_DEFAULT" = "" ]; then
    echo "WARNING: GRUB_DEFAULT changed to boot into Xen by default!"
    echo "         Edit /etc/default/grub.d/xen.cfg to avoid this warning."
    XEN_OVERRIDE_GRUB_DEFAULT=1
fi
if [ "$XEN_OVERRIDE_GRUB_DEFAULT" = "1" ]; then
    GRUB_DEFAULT=$( \
        printf "$(gettext "%s, with Xen hypervisor")" \
        "$GRUB_DISTRIBUTOR GNU/Linux")
fi



-- no debconf information
Version: 4.16.2-1