Discussion - https://help.ubuntu.com/community/EnableHibernateWithEncryptedSwap

Please use this thread for discussion regarding

https://help.ubuntu.com/community/En...hEncryptedSwap

Support threads should be posted in normal forums.

Thank you.

Thanks for the guide, I followed it including regenerating the initramfs, but when rebooting and entering the password on boot, it says

Quote:

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"cryptsetup: unknown fstype, bad password or options?"

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when entering the right password.

The following works with no problem after the system boots

Code:

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/sbin/cryptsetup luksOpen /dev/sda7 cryptswap1

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But the code in /usr/share/initramfs-tools/scripts/local-top/cryptroot goes inside the if block at #314

Code:

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                if [ -z "$FSTYPE" ] || [ "$FSTYPE" = "unknown" ]; then
                        message "cryptsetup: unknown fstype, bad password or options?"
                        udev_settle
                        $cryptremove
                        continue
                fi

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and shows the above message.

Apparently the script isn't recognizing the encrypted filesystem, but I have no idea why.

I am on ubuntu 12.04 (Linux aularon-laptop 3.2.0-27-generic #43-Ubuntu SMP Fri Jul 6 14:25:57 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux).

If there's anything I can try to troubleshoot the problem/solve it? :confused:

Great guide!
But I have a problem: after password query appears system continues to boot and there is no ability to enter the password.

Quote:

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Originally Posted by zuker

Great guide!
But I have a problem: after password query appears system continues to boot and there is no ability to enter the password.

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Please start a thread in the normal forums for your issue :)

after applying this steps I need to enter the pass-phrase each time the swap is being mounted or just first time?

Hello,

how can I revert the use of a fixed passphrase to a random one?

I guess I shoud follow the instructions in the wiki and change something at the step

Code:

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sudo cryptsetup luksFormat --cipher aes-cbc-essiv:sha256 --verify-passphrase --key-size 256 /dev/sdXN

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?

Quote:

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Originally Posted by stylishkoala

after applying this steps I need to enter the pass-phrase each time the swap is being mounted or just first time?

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Quote:

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Originally Posted by JonasHagen

Hello,

how can I revert the use of a fixed passphrase to a random one?

I guess I shoud follow the instructions in the wiki and change something at the step

Code:

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sudo cryptsetup luksFormat --cipher aes-cbc-essiv:sha256 --verify-passphrase --key-size 256 /dev/sdXN

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?

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This area is for discussing the relevant wiki page(s) and not for support. For that please post in the relevant subforum.


Regards
404

Curiously, how much memory you have, and how big the swap space you have here?

Can I have 4GB memory DIM and with 2GB swap space to enable Hibernate?

Thanks for the guide. It was very helpful. There was just one extra thing I had to add in order for the passphrase prompt to always show up during start-up. In /etc/default/grub I edited GRUB_CMDLINE_LINUX_DEFAULT to look like:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash cryptopts=target=cryptswap1,source=/dev/sda6 resume=swap:/dev/mapper/cryptswap1"

Quote:

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Originally Posted by thelinuxkidd

Thanks for the guide. It was very helpful. There was just one extra thing I had to add in order for the passphrase prompt to always show up during start-up. In /etc/default/grub I edited GRUB_CMDLINE_LINUX_DEFAULT to look like:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash cryptopts=target=cryptswap1,source=/dev/sda6 resume=swap:/dev/mapper/cryptswap1"

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I should mention two other things:
1. I only got hibernate to work with tuxonice.
2. By adding the line in the quote to /etc/default/grub (and then rebuilding with upgrade-grub2) I didn't need to edit /usr/share/initramfs-tools/scripts/local-top/cryptroot as mentioned in the guide at the beginning of this thread.


Linux dist: Ubuntu 12.04
Linux kernel: 3.2.0-44-generic-tuxonice
System: Thinkpad T430s