Home partition not recognised after GRUB reinstall

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http://unix.stackexchange.com – I hope you can help me: I had to reinstall Windows on my machine, which had a dual boot with Crunchbang. My crunchbang install has two partitions, root and home. So I have installed windows, booted with a Ubuntu liveCD, reinstalled grub on the crunchbang root partition, rebooted... and my home cannot be found! I am booting into my root partition, and cannot see the home partition. What to do? Thx a lot! (HowTos)