How To Set Up Software RAID1 On A Running LVM System

“This guide explains how to set up software RAID1 on an already
running LVM system (Debian Etch). The GRUB bootloader will be
configured in such a way that the system will still be able to boot
if one of the hard drives fails (no matter which one)…

“In this tutorial I’m using a Debian Etch system with two hard
drives, /dev/sda and /dev/sdb which are identical in size. /dev/sdb
is currently unused, and /dev/sda has the following

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