This is article for how to make a raid /check them.
https://help.ubuntu.com/community/Installation/SoftwareRAID
This is an official tutorial.
http://webapp5.rrz.uni-hamburg.de/SuSe-Dokumentation/manual/sles-manuals_en/manual/raidresize.html
This tell us how to grow or shrink a raid partition.
http://blog.thecodingmachine.com/fr/content/redimensionner-les-partitions-dun-serveur-ovh-kimsufi
this is how to do it if you are not a raid partition for ovh.
In fact , they all forget one thing, if you are resizing your boot partition, if you have removed the device and recreate it. your UUID is changed, so you need to update the grub.
this article tells us how to reinstall a debian by OVH rescue, and talk about how to correctly update the grub.
http://marek.niesiobedzki.pl/2010/02/22/debian-5-from-scratch-rescue-ovh-grub/
The most important thing for update grub after you have successfully resize or remove or recreate your partition is:
These action depend on your boot partition is db1, and your db1 array is sda1, sdb1.
If
update-grub
do not works , you can try :
dpkg-reconfigure grub-pc
The most important thing is use
chroot /mnt/md1
cause you are in a seprated envirement, and you need to modify the md1 system, not the rescue grub. And, you must do :
to transfer the modified dev to the new system and for the generation of grub.
https://help.ubuntu.com/community/Installation/SoftwareRAID
This is an official tutorial.
http://webapp5.rrz.uni-hamburg.de/SuSe-Dokumentation/manual/sles-manuals_en/manual/raidresize.html
This tell us how to grow or shrink a raid partition.
http://blog.thecodingmachine.com/fr/content/redimensionner-les-partitions-dun-serveur-ovh-kimsufi
this is how to do it if you are not a raid partition for ovh.
In fact , they all forget one thing, if you are resizing your boot partition, if you have removed the device and recreate it. your UUID is changed, so you need to update the grub.
this article tells us how to reinstall a debian by OVH rescue, and talk about how to correctly update the grub.
http://marek.niesiobedzki.pl/2010/02/22/debian-5-from-scratch-rescue-ovh-grub/
The most important thing for update grub after you have successfully resize or remove or recreate your partition is:
mount -obind /dev /mnt/dev/ chroot /mnt/md1 mount none /proc -t proc apt-get update grub-install /dev/sda update-grub
These action depend on your boot partition is db1, and your db1 array is sda1, sdb1.
If
update-grub
do not works , you can try :
dpkg-reconfigure grub-pc
The most important thing is use
chroot /mnt/md1
cause you are in a seprated envirement, and you need to modify the md1 system, not the rescue grub. And, you must do :
mount -obind /dev /mnt/dev/
to transfer the modified dev to the new system and for the generation of grub.
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