I installed Stretch on Raid1 partition with the following configuration:
Two physical disks on that raid1 i.e /dev/sda and /dev/sdb
md0 /boot
md1 swap
md2 /
(in addition I have md3 as raid5 with 4 physical drives mounted to /data. But it's irrelevant for the raid1 configuration)
During the installation grub was installed to /dev/sda but I also did installation to /dev/sdb with command 'grub-install /dev/sdb'.
Now if and when a new kernel is released what would be the procedure I need to perform? Updating the kernel via normal procedure but also run 'grub-install /dev/sdb'?
Should I do still something else to be able to boot the new kernel from the other device if let's say /dev/sda breaks down?
Appreciate any help or point me to the direction of any existing documentation.
Thx in advance.
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