Bug#747258: system boot slowed down by bad /etc/crypttab

[Harald Dunkel]

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I think thats a misunderstanding. /etc/crypttab is not a systemd config
file. It just provides information to cryptsetup about a set of encrypted
block devices (online or offline). Thats all.

There is neither a reason for systemd to assume that the source devices
listed in crypttab have to be available at boot time, nor that the decoded
block devices provide a file system, swap partition, physical volume or
whatever. /etc/crypttab simply doesn't tell.

For example it could be a list of your 20+ encrypted backup disks (USB,
usually locked away in a secure place) and the corresponding secret files
stored on an encrypted USB stick.

*If* you have a block device, and *if* it provides one or more luks
partitions, *then* you can look into /etc/crypttab for information about
how it should be decrypted.


Hope this helps. Regards
Harri
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