Migration of linux system to another disk.

Case for disk with MBR.

1. Copy source disk partitions / and /home to another disk.

# mkdir /mnt/sdb1
# mount /dev/sdb1 /mnt/sdb1
# cd /
# find ./ -xdev -print0 | cpio -pa0V  /mnt/sdb1

# mkdir /mnt/sdb2
# mount /dev/sdb2 /mnt/sdb2
# cd /home
# find ./ -xdev -print0 | cpio -pa0V  /mnt/sdb2

2. Install grub

# for i in /sys /proc /run /dev; do sudo mount --bind "$i" "/mnt/sdb1$i"; done
# sudo chroot /mnt/sdb1
# update-grub
# grub-install /dev/nvme1n1
# update-grub
# exit
# reboot