debootstrap hangs at "I: Base system installed successfully."

[Karl-Philipp Richter]

`sudo debootstrap wheezy /tmp/test` where `/tmp/test` is an `ext4` partition or has been prepared with

    sudo mount /dev/sdxY /mnt/sdxY
    sudo btrfs subvolume /mnt/sdxY/test
    sudo mount -o subvol=test /dev/sdxY /tmp/test

hangs at output `I: Base system installed successfully.` without any I/O or CPU usage and doesn't return. Signal `SIGINT` doesn't have any effect.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: debootstrap 1.0.72ubuntu1
Uname: Linux 3.18.26-031826-generic x86_64
NonfreeKernelModules: openafs
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Feb 15 00:54:58 2016
InstallationDate: Installed on 2013-10-17 (850 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
PackageArchitecture: all
SourcePackage: debootstrap
UpgradeStatus: Upgraded to wily on 2015-11-19 (87 days ago)

[Ken Sharp (kennybobs)]

Wily is long gone. Does this occur in a supported version of Ubuntu?

[Karl-Philipp Richter (krichter722)]

I guess that came from early days of btrfs. This can be closed.

[Launchpad Janitor (janitor)]

[Expired for debootstrap (Ubuntu) because there has been no activity for 60 days.]