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666threesixes666/update-grub2

Last active December 14, 2015 16:19
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update-grub2
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update-grub2
#!/bin/bash
#make sure boot is mounted to load the kernel
mount | grep "/boot" /proc/self/mounts > /dev/null
if [ $? -ne 0 ]; then
mount /boot
fi
#make sure you have a grub2 directory in boot
if [ ! -d "/boot/grub2" ]; then
mkdir /boot/grub2
fi
#dynamically assign the drive to install grub2 to
DRIVE=$(cat /proc/self/mounts | grep boot | awk '{print $1}' | sed 's/[0-9]*//g')
echo "installing grub2 to $DRIVE"
/usr/sbin/grub2-mkconfig -o /boot/grub2/grub.cfg
/usr/sbin/grub2-install $DRIVE
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