I am building a Debian virtual machine inside UML, but it is hanging.

Here is my shell script for the construction:

# Let's make sure we're updated
printf "\nUpdating...\n"
apt update
apt upgrade
# Next let's collect some tools we may need
printf "\nInstalling tcpdump, nmap, wireshark, qemu, debootstrap.\n"
apt install tcpdump nmap wireshark qemu debootstrap
# We need a tarball of the linux kernel. We use the current mainline as of this writing.
printf "\nDownloading mainline linux kernel...\n"
curl -o kernelpackage https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/snapshot/linux-4.18-rc4.tar.gz 
# And we'll extract it to the current directory.
printf "\nExtracting linux kernel...\n"
tar -zxvf kernelpackage
# Next let's start with configuring UML default.
# This line changes dependent on your kernel release.
cd linux-4.18-rc4
# Set up some configuration.
printf "\nConfiguring kernel...\n"
make defconfig ARCH=um
# This summons up the kernel. Don't be afraid, this will take some time.
printf "\nBuilding kernel...\n"
make ARCH=um linux
# We need to make modules BEFORE we strip. Ignore the book.
printf "\nBuilding kernel modules...\n"
make ARCH=um modules
# Let's get a debian distribution to run in the virtual machine.
printf "\nDownloading and constructing debian image for VM...\n"
sudo debootstrap --arch amd64 --variant minbase wheezy wheezy-uml http://mirror.switch.ch/ftp/mirror/debian
# And let's ensure that UML will have write permissions.
sudo chown -R $USER:$USER wheezy-uml
# Finally, we can start the UML VM. We will be giving it a gigabyte of ram.
printf "\nStarting virtual machine...\n"
# Boot debian in the virtual machine.
./linux rootfstype=hostfs rootflags=$(pwd)/wheezy-uml init=/sbin/init rw mem=1024M

Now, here is the result when it starts to boot Debian:


So I am hanging at random: crng init done

Any help and advice would be great -- I'm brand new to the emulation scene. Thank you!

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.