I have Debian 6 2.6.32-5-amd64 on netbook. With
pm-utils Sleep works but hibernate fails with error:
PM: Swap header not found!. Swap was enabled using ubuntu tutorial after installation - this is probably the key but can't find working solution.
You don't have a recognizable swap partition. Check that your swap partition is active: run
This may be a symptom of trying to hibernate to a swap file. See e.g. Ubuntu bug #313724. Some hibernation methods accept swap files, but this depends on both the hibernation method and the kernel version, and it looks like yours can't cope with a swap file. Some versions of
If you created a swap partition with a more recent operating system, or had encrypted swap before but no longer, you may need to reinitialize the swap partition. Run