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disable_cma() {
if [[ -f /boot/config.txt && $(grep '^cma' /boot/config.txt) != '' ]]; then
echo ">>> You appear to have dynamic memory (CMA) enabled, which is currently broken"
echo ">>> in newer kernels and will cause many issues if left enabled."
echo ">>> Disabling that for you now."
sed -i 's/^cma_/#cma_/g' /boot/config.txt
fi
}
correct_fstab() {
# starting with v5.10.y, fstab requires a padded zero in the path to /boot
if [[ -f /etc/fstab ]]; then
if grep -q mmcblk1p1 /etc/fstab; then
sed -i 's/mmcblk1p1/mmcblk01p1/' /etc/fstab
fi
fi
}
post_install () {
disable_cma
}
post_upgrade() {
if grep "^[^#]*[[:space:]]/boot" etc/fstab 2>&1 >/dev/null; then
if ! grep "[[:space:]]/boot" etc/mtab 2>&1 >/dev/null; then
echo "WARNING: /boot appears to be a separate partition but is not mounted."
echo " You probably just broke your system. Congratulations."
fi
fi
disable_cma
if [ "$(vercmp $2 3.18.3)" -lt 0 ]; then
echo "________________________________________________________________________________"
echo ""
echo "WARNING: This kernel provides updated config.txt and cmdline.txt files."
echo " Check for pacnew files in /boot and merge or replace the existing files"
echo " with the new versions."
echo "________________________________________________________________________________"
echo ""
fi
if [ "$(vercmp $2 5.10.0)" -lt 0 ]; then
correct_fstab
fi
}
post_remove() {
rm -f boot/initramfs-linux.img
}
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