Cryptsetup issue.
Hi.
I went through the cryptsetup section and tried it out on a spare USB thumb drive. To reverse everything, after doing:
$ sudo cryptsetup --verbose luksClose SECRET
the thumb drive was still encrypted. Am I missing a step?
Also, I do not have a /etc/crypttab on my Kubuntu installation . Can i just create one in /etc?
Cheers.
Comments
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Good morning, Once the thumb drive is encrypted you will have to "mkfs" to overwrite the encrypted partition, all information on the thumb drive will be destroyed.
As for the /etc/crypttab, create the file and try the reboot. I don't currently have a Kubuntu distro but Ubuntu works as described.
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As far as why you don't have /etc/crypttab, I did some investigation. on redhat-based systems this belongs to the systemd package and is installed at boot. On Ubuntu things are messy and it is created on a "post install" script and why you don't have it is beyond me. At any rate, the default file is empty anyway except for a couple of comments so you can just create it as needed.
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Hi @WarrenUK ,
I went through the cryptsetup section and tried it out on a spare USB thumb drive. To reverse everything, after doing:
>
$ sudo cryptsetup --verbose luksClose SECRET
>
the thumb drive was still encrypted. Am I missing a step?
How are you testing if it's encrypted yet?
Also, I do not have a /etc/crypttab on my Kubuntu installation . Can i just create one in /etc?
I just did a testcase with Ubuntu 19.10 (I think for this purpose it won't be much different), and I got the /etc/crypttab file after installed cryptsetup. If you don't have that file, it may mean a problem (perhaps a small one). If you create it by hand, it won't hurt anyway.
Regards,
Luis.0 -
I found the file. I thought it was a folder not a file.
Anyway it is there on both my Ubuntu based systems.
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Good. I hope the lab ended well for you
Luis.
0
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