Bug#802187: debian-installer: On first boot after install init hangs due to missing symlink "/etc/mtab to /proc/self/mounts"

[pete <stardeep25@yahoo.com.au>]

Package: debian-installer
Version: Debian GNU/Linux testing "Stretch" - Official Snapshot amd64
CD Binary-1 20151012-12:17
Severity: important
Tags: d-i

Dear Maintainer,

On first boot after install init hangs due to missing symlink

[ 4.904755] systemd [1]: /etc/mtab is not a symlink or not pointing to
/proc/self/mounts. This is not supported anymore. Please replace
/etc/mtab with a symlink to /proc/self/mounts.
[ 4.904755] systemd [1]: Freezing execution.

Was able to get the system working by booting into rescue mode from the
install CD, 
mounting the root partion, 
moving the current /etc/mtab to /etc/mtab.old and then making the
symlink ln -s /proc/self/mounts /etc/mtab

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.2.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)