Comment 0 for bug 1757321

after upgrading to bionic, attempts to mount an encrypted USB drive fail with the error "function bd_crypto_luks_open_blob called but not implemented"

Installing libblockdev-crypto2 and libblockdev-crypto-dev and rebooting appears to have fixed it, but should that be necessary? or at least better documented? (https://www.distrowatch.com/weekly.php?issue=20171113 is the only reference I could find on the error)

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: udisks2 2.7.6-2ubuntu4
ProcVersionSignature: Ubuntu 4.15.0-12.13-generic 4.15.7
Uname: Linux 4.15.0-12-generic x86_64
ApportVersion: 2.20.8-0ubuntu10
Architecture: amd64
CurrentDesktop: GNOME
CustomUdevRuleFiles: 90-xhc_sleep.rules 70-snap.core.rules
Date: Tue Mar 20 20:28:39 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-08-21 (942 days ago)
InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150819)
MachineType: Apple Inc. MacBookPro11,4
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-12-generic.efi.signed root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=1
SourcePackage: udisks2
UpgradeStatus: Upgraded to bionic on 2018-03-20 (0 days ago)
dmi.bios.date: 06/05/2015
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP114.88Z.0172.B04.1506051511
dmi.board.name: Mac-06F11FD93F0323C5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,4
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-06F11FD93F0323C5
dmi.modalias: dmi:bvnAppleInc.:bvrMBP114.88Z.0172.B04.1506051511:bd06/05/2015:svnAppleInc.:pnMacBookPro11,4:pvr1.0:rvnAppleInc.:rnMac-06F11FD93F0323C5:rvrMacBookPro11,4:cvnAppleInc.:ct9:cvrMac-06F11FD93F0323C5:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro11,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.