Output from `/var/log/boot2docker.log` when running into issue boot2docker/boot2docker#824

boot2docker.log

net.ipv4.ip_forward = 1
sysctl: cannot stat /proc/sys/net/ipv6/conf/all/forwarding: No such file or directory
sysctl: setting key "cannot stat %s": No such file or directory
sysctl: "cannot stat %s" is an unknown key
sysctl: setting key "cannot stat %s": No such file or directory
Segmentation fault
automount ...
/dev/sda1
/dev/sda1
mount p:sda1 ...
umount: can't forcibly umount /var/lib/docker: No such file or directory
total 24
drwx------    2 root     root         16384 Jun 23 17:59 lost+found
drwxrwxrwt    4 root     staff         4096 Jun 23 21:53 tmp
drwxr-xr-x    3 root     root          4096 Jun 23 17:59 var
automount over.
installing *.pem
Setting hostname to boot2docker Done.
mv: can't rename '/usr/local/etc/ssh/ssh_config.example': No such file or directory
-------------------
Tue Jun 23 21:53:30 UTC 2015
Tue Jun 23 21:53:35 UTC 2015
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default 
    link/ether 5e:16:f3:3e:a0:9e brd ff:ff:ff:ff:ff:ff
3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:a9:98:2a brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::a00:27ff:fea9:982a/64 scope link tentative 
       valid_lft forever preferred_lft forever
4: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 08:00:27:09:11:b9 brd ff:ff:ff:ff:ff:ff
-------------------
Need TLS certs for boot2docker,127.0.0.1,10.0.2.15
-------------------
Generate server cert
/usr/local/bin/generate_cert --host=boot2docker,127.0.0.1,10.0.2.15 --ca=/var/lib/boot2docker/tls/ca.pem --ca-key=/var/lib/boot2docker/tls/cakey.pem --cert=/var/lib/boot2docker/tls/server.pem --key=/var/lib/boot2docker/tls/serverkey.pem
2015/06/23 21:53:35 Generating a server cert