fix alpine mbr

mbr.md

WIP

Manually Installing Syslinux

1. Install Syslinux:

   apk add syslinux

2. Copy the Syslinux boot files: Create a directory for Syslinux in your boot partition (assuming it’s mounted at /mnt/boot):

   mkdir -p /mnt/boot/syslinux
   cp /usr/share/syslinux/* /mnt/boot/syslinux/

3. Install the Syslinux bootloader: Use the syslinux command to install it directly to your disk:

   syslinux /dev/sdxY  # Replace /dev/sdxY with your boot partition, like sda1 or nvme0n1p1

4. Create or edit the Syslinux configuration file: Create the syslinux.cfg file in /mnt/boot/syslinux:

   nano /mnt/boot/syslinux/syslinux.cfg

   Add an entry similar to this:

   DEFAULT linux
   LABEL linux
       KERNEL /vmlinuz-lts
       APPEND root=/dev/sdxY  # Replace with your actual root partition, like sda2 or nvme0n1p2
       INITRD /initramfs-lts

5. Set the bootable flag: If you're using a partition table, make sure your boot partition is flagged as bootable. You can do this with fdisk:

   fdisk /dev/sdx  # Replace /dev/sdx with your disk, like sda or nvme0n1

   Then follow these steps:

   • Press a to toggle the bootable flag on the appropriate partition.
   • Press w to write changes and exit.

6. Reboot your system:

   umount -R /mnt
   reboot