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#!/bin/sh -e
ver_new="$1"
ver_old="$2"
if [ "$(apk version -t "$ver_old" "2.02-r8")" = "<" ]; then
cat >&2 <<-EOF
*
* Starting with grub=2.02-r8, /boot/grub/grub.cfg is now automatically
* regenerated when easy-kernel is upgraded.
*
EOF
if ! grep -Fqx '# DO NOT EDIT THIS FILE' /boot/grub/grub.cfg; then
cat >&2 <<-EOF
* It appears that you have a manual GRUB configuration.
* If this is incorrect, comment out ADELIE_MANUAL_CONFIG
* in /etc/default/grub. When this option is set, /boot/grub/grub.cfg
* will *not* be automatically regenerated.
*
EOF
cat >> /etc/default/grub <<-EOF
# Uncomment the following line if you do *not* want /boot/grub/grub.cfg to be
# automatically regenerated when easy-kernel is upgraded.
ADELIE_MANUAL_CONFIG=1
EOF
else
cat >&2 <<-EOF
* It appears that you have a default GRUB configuration.
* If this is incorrect, uncomment ADELIE_MANUAL_CONFIG=1
* in /etc/default/grub. When this option is set, /boot/grub/grub.cfg
* will *not* be automatically regenerated.
*
* A copy of the existing configuration will be saved as
* /boot/grub/grub.cfg.update-grub-old.
*
EOF
fi
fi
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