GRUB Reparatur chroot

GRUB-Reparatur-chroot.sh

#!/bin/bash

# different keymaps:
# /usr/share/keymaps/i386/
# /usr/share/kbd/keymaps/i386/
# /usr/share/X11/xkb/symbols/

#loadkeys de
setxkbmap de

# mount
cryptsetup luksOpen /dev/sda3 <uuid>

# chroot
sudo mount /dev/sda1 /mnt
#sudo mount /dev/sdXY /mnt/boot  # for separate Boot-Partition
#sudo mount /dev/sdX1 /mnt/boot/efi  # uefi boot
#sudo mount /dev/mapper/<xyz> /mnt  # if LVM, cryptmd or somthing simular is used
sudo mount -o bind /dev /mnt/dev
sudo mount -o bind /sys /mnt/sys
sudo mount -t proc /proc /mnt/proc
sudo mount -o bind /run /mnt/run
#sudo cp /proc/mounts /mnt/etc/mtab
sudo chroot /mnt /bin/bash

update-initramfs -u -k all #remake initramfs
grub-install /dev/sda
#grub-install --recheck /dev/sda
update-grub

## networking has to be configured on host system
dhclient
ip addr add IP/NETMASK dev DEVICE
ip route add default via IP dev DEVICE

## grub cli
echo nameserver 8.8.8.8 > /etc/resolv.conf
apt-get update
apt-get install grub


grub
#> device (hd1) /dev/cciss/c0d0
# use tub to see avelable hdds
#> root (hd1,0)
#> setup (hd1)
#> quit


# copy the OS
#sudo cp -afv /mnt/a/* /mnt/b/
# /proc /dev /run are empty folders
# than cange the uuid from the disk in /mnt/b/etc/fstab
# you can get the uuids by doing 'ls -l /dev/drisk/by-uuid/'

# close and unmount
umount /mnt/boot/efi /mnt/boot
umount /mnt
#vgchange -an <vgpath>
#vgchange -ay <vgpath>
dmsetup ls
dmsetup remove <name>
cryptsetup luksClose /dev/mapper/vol

Reinstalling-all-Debian-apt-packages.sh

dpkg --get-selections > selections
sudo dpkg --clear-selections
sudo dpkg --set-selections < selections
sudo apt-get --reinstall dselect-upgrade