package mdadm 3.3-2ubuntu7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Mike Pelley]

New install of Ubuntu Gnome on drive with existing RAID partitions. Used mdadm to assemble the RAID partitions and ran the installer with -b. Afterwards installed the boot manager. Everything seemed to work great but this error popped up.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: mdadm 3.3-2ubuntu7
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
AptOrdering:
 mdadm: Install
 mdadm: Configure
 NULL: ConfigurePending
Architecture: amd64
Date: Sun May 15 06:17:57 2016
Df:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-05-15 (0 days ago)
InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Release amd64 (20160421)
MDadmExamine.dev.sda:
 /dev/sda:
    MBR Magic : aa55
 Partition[0] : 19529728 sectors at 2048 (type fd)
 Partition[1] : 3905536 sectors at 19531776 (type fd)
 Partition[2] : 3883591680 sectors at 23437312 (type fd)
MDadmExamine.dev.sdb:
 /dev/sdb:
    MBR Magic : aa55
 Partition[0] : 19529728 sectors at 2048 (type fd)
 Partition[1] : 3905536 sectors at 19531776 (type fd)
 Partition[2] : 3883591680 sectors at 23437312 (type fd)
MDadmExamine.dev.sdc:
 /dev/sdc:
    MBR Magic : aa55
 Partition[0] : 19529728 sectors at 2048 (type fd)
 Partition[1] : 3905536 sectors at 19531776 (type fd)
 Partition[2] : 3883591680 sectors at 23437312 (type fd)
MDadmExamine.dev.sdd:
 /dev/sdd:
    MBR Magic : aa55
 Partition[0] : 19529728 sectors at 2048 (type fd)
 Partition[1] : 3905536 sectors at 19531776 (type fd)
 Partition[2] : 3883591680 sectors at 23437312 (type fd)
MachineType: Gigabyte Technology Co., Ltd. P35-DS3P
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=6f1ee2e1-c5c2-403b-a321-0b72e714fe23 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.10ubuntu1
SourcePackage: mdadm
Title: package mdadm 3.3-2ubuntu7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/19/2009
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F12
dmi.board.name: P35-DS3P
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF12:bd06/19/2009:svnGigabyteTechnologyCo.,Ltd.:pnP35-DS3P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnP35-DS3P:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: P35-DS3P
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
etc.blkid.tab: Error: [Errno 2] No such file or directory: '/etc/blkid.tab'

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.