vagrant - no space left on device error

Question

I am new to vagrant. I am following the instructions at http://gettingstartedwithdjango.com/en/lessons/introduction-and-launch/

I am getting the following error on running "sudo ./postinstall.sh" script

+ apt-get -y clean
+ rm -f /var/lib/dhcp3/*
+ rm /etc/udev/rules.d/70-persistent-net.rules
rm: cannot remove `/etc/udev/rules.d/70-persistent-net.rules': Is a directory
+ mkdir /etc/udev/rules.d/70-persistent-net.rules
mkdir: cannot create directory `/etc/udev/rules.d/70-persistent-net.rules': File exists
+ rm -rf /dev/.udev/
+ rm /lib/udev/rules.d/75-persistent-net-generator.rules
rm: cannot remove `/lib/udev/rules.d/75-persistent-net-generator.rules': No such file or directory
+ rm -f /home/vagrant/{*.iso,postinstall*.sh}
+ dd if=/dev/zero of=/EMPTY bs=1M
dd: writing `/EMPTY': No space left on device
78504+0 records in
78503+0 records out
82316406784 bytes (82 GB) copied, 105.122 s, 783 MB/s
+ rm -f /EMPTY
+ exit

But I seem to have enough space:

vagrant@precise64:~$ df -h
Filesystem                                 Size  Used Avail Use% Mounted on
/dev/mapper/precise64-root                  79G  2.3G   73G   3% /
udev                                       174M     0  174M   0% /dev
tmpfs                                       74M  272K   73M   1% /run
none                                       5.0M     0  5.0M   0% /run/lock
none                                       183M     0  183M   0% /run/shm
/dev/sda1                                  228M   25M  192M  12% /boot
/vagrant                                   220G   91G  130G  42% /vagrant
/tmp/vagrant-chef-1/chef-solo-1/cookbooks  220G   91G  130G  42% /tmp/vagrant-chef-1/chef-solo-1/cookbooks
/tmp/vagrant-chef-1/chef-solo-2/cookbooks  220G   91G  130G  42% /tmp/vagrant-chef-1/chef-solo-2/cookbooks

Can somebody please help? Thank you.

Answer 1

It's supposed to do this :) It's making your virtual disk as small as possible since it is thinly provisioned.

Creating a file full of zeros on the disk until it is full is clearing the blocks on the disk and as such your file representing the VMs disk will be as small as the actual data you have on the disk.

Answer 2

The problem resides in the following statement:

dd if=/dev/zero of=/EMPTY bs=1M

If you don't specify count=<some value>, the dd command will continue until the end of device is reached. So basically with the above command you're trying to create a file called that spawns through the whole partition, called EMPTY under /. Thus the error.