grub cannot mount raid1 wheezy
 

I have created 2 raid1 partitation
/dev/md1 ext4 and /dev/md2 swap

/ is on /dev/md1

I have tried using
http://sysadmin.compxtreme.ro/how-to...oftware-raid1/
to create my raid1 .
I did

update-grub
update-initramfs -u

After copying all files from / on my sda1 parttation to /mnt/md1
and after doing

grub-install /dev/sda
grub-install /dev/sdb

and then reboot. The outcome is that the grub loader starts, I can choose between some linux-os but hereafter the loader is not able to mount /dev/md1 and I end with an initramfs prompt.

With a rescue disk I am able to mount /dev/md1 and when I run
mdadm --examine --scan
I get UUID which is different from what I find under
/dev/disk/by-uuid
why? Is that the problem?
What should I do?

/etc/default/mdadm
 

The problem was that the ramdisk during boot didn't assemble the array
After modifying the /etc/default/mdadm with
INITRDSTART='all'

and

AUTOSTART=true

and then
update-initramfs
it worked