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proxmox-boot: ignore call to grub-install from grub maintscripts

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in certain cases the postinst script of grub-pc runs grub-install on
the disks it gets from debconf. Simply warn and exit with 0 if
grub-install is called by dpkg and from a grub related package

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
This commit is contained in:
Stoiko Ivanov 2021-07-07 23:09:50 +02:00 committed by Thomas Lamprecht
parent dc3e3e5ca7
commit 7559f23996
1 changed files with 6 additions and 0 deletions
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6
bin/grub-install-wrapper
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@ -4,6 +4,12 @@ set -e
. /usr/share/pve-kernel-helper/scripts/functions
if proxmox-boot-tool status --quiet; then
#detect when being called by dpkg (e.g. grub-pc.postinst
if [ -n "$DPKG_RUNNING_VERSION" ] && \
echo "$DPKG_MAINTSCRIPT_PACKAGE" | grep -sq "^grub-"; then
warn "This system is booted via proxmox-boot-tool, ignoring dpkg call to grub-install"
exit 0
fi
warn "grub-install is disabled because this system is booted via proxmox-boot-tool, if you really need to run it, run /usr/sbin/grub-install.real"
exit 1
else