Public bug reported:
This is a feature request.
I have an encrypted SSD which I want to use as a cache (an LVM-Cache)
for my encrypted harddisc.
The cached root filesystem depends on *both* crypto discs. The new
cached root volume is created from the original root volume
("OriginLV"), and two volumes that reside on the encrypted SSD
("CacheMetaDataLV" and "CacheDataLV").
This means that, during boot, we need to set up both crypto volumes,
before we can mount the root filesystem. So we can't use a keyfile.
This is accomplished by querying the user for the password of each
crypto volume, except for the ones which use a key file.
This means that I'll have to enter two passwords every time I boot my
machine.
This could be done better by making the user enter just one password,
and unlocking all matching crypto disks with it. So I would set the same
password for both crypto disks, and would have to enter the password
only once. This is my feature request.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: initramfs-tools 0.122ubuntu8.8
ProcVersionSignature: Ubuntu 4.4.0-96.119-generic 4.4.83
Uname: Linux 4.4.0-96-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: KDE
Date: Fri Oct 13 18:57:11 2017
InstallationDate: Installed on 2015-10-27 (717 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
PackageArchitecture: all
SourcePackage: initramfs-tools
UpgradeStatus: Upgraded to xenial on 2016-05-01 (530 days ago)
** Affects: initramfs-tools (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1723484
Title:
unlocking several crypto volumes with one password during boot
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