-- new i modified 2020-mar10
Q: when diaster happen, i cannot boot from my eee pc. what to do?
A: 
 1. boot system using mintLinux usb
 2. find partition of mintlinux at eee HD (sda5: use fdisk -l to check)
 3. mount sda5 and run grun-install at sda5

-- orig
boot/grub is under mint Linux partition
mount it and run grub-install 

1. use usb mint linux boot system
2. find linux partition
3. restore

fdisk -l
--
/dev/sda1            2048    206847    204800   100M  7 HPFS/NTFS/exFAT
/dev/sda2  *       207104 140507567 140300464  66.9G  7 HPFS/NTFS/exFAT
/dev/sda3       140509184 201948637  61439454  29.3G 83 Linux

sudo mount /dev/sda3 /mnt
$ sudo grub-install --root-directory=/mnt /dev/sda
# note: destination is sda NOT sda3 !

mint bash -> which grub-install
/usr/sbin/grub-install

also check ~/00bsd_my_doc/