Native version

autoinstall/start-autoinstall.sh

@@ -3,6 +3,11 @@
 set -x
 set -e
 
+if [ -z "$OVMF_PATH" ]
+then
+  OVMF_PATH=/usr/share/qemu/OVMF.fd
+fi
+
 # 25G -> https://bugs.launchpad.net/subiquity/+bug/1907128
 qemu-img create -f qcow2 disk.img 50G
 wget -c -O ubuntu.iso https://old-releases.ubuntu.com/releases/jammy/ubuntu-22.04.2-live-server-amd64.iso
@@ -15,4 +20,4 @@ trap 'kill $HTTP_SRV_PID' EXIT
 # Make contestant-vm available
 tar czvf contestant-vm.tar.gz --exclude autoinstall --exclude .git --exclude .github -C ../.. contestant-vm
 
-qemu-system-x86_64 -display gtk -hda disk.img -cdrom ubuntu.iso -m 2048 -net nic -net user -cpu host -machine accel=kvm -smbios type=1,serial=ds='nocloud-net;s=http://10.0.2.2:8000/'
+qemu-system-x86_64 -display gtk -hda disk.img -cdrom ubuntu.iso -m 2048 -net nic -net user -cpu host -machine accel=kvm -smbios type=1,serial=ds='nocloud-net;s=http://10.0.2.2:8000/' -bios "$OVMF_PATH"

autoinstall/user-data

@@ -18,11 +18,12 @@ autoinstall:
           dhcp4: yes
   storage:
     layout:
-      name: direct #lvm
+      name: lvm
   identity:
-    hostname: ioi-0804
+    hostname: ioi-0809
     username: ansible
-    # ansible DO CHANGE!
+    # Note: the real password will be ANSIBLE_PASSWORD
+    # ansible
     password: $6$NH0tTrHw/4v3.Jbi$6NCVzJ45i3N4HFF1vJpPobpdkGhgBq0t56KAGzjm4/wg1saD8N7akmBMaLbSH.UmpIdmZV8TUaqN2/pDaSSS0.
   ssh:
     install-server: yes

setup.d/40-boot-setup.sh

@@ -6,42 +6,10 @@ set -e
 sed -i '/GRUB_CMDLINE_LINUX_DEFAULT/ s/splash//' /etc/default/grub
 update-grub2
 
-echo "boot-setup: works, but disabled due to inconveniences"
-echo "- snapshot can be found by Ubuntu's sidebar, which is annoying"
-echo "- Rethink logic:"
-echo "  - is 15 sec enough?"
-exit 0
-
 VG="ubuntu-vg"
 ORIGIN_LV="ubuntu-lv"
 SNAPSHOT_LV="ubuntu-snapshot"
 
-cat <<EOM >/etc/initramfs-tools/hooks/zerofree
-#!/bin/sh
-PREREQ=""
-prereqs()
-{
-   echo "\$PREREQ"
-}
-
-case \$1 in
-prereqs)
-   prereqs
-   exit 0
-   ;;
-esac
-
-. /usr/share/initramfs-tools/hook-functions
-
-if [ ! -x "/sbin/zerofree" ]; then
-  exit 1
-fi
-
-copy_exec /sbin/zerofree /sbin
-exit 0
-EOM
-chmod 755 /etc/initramfs-tools/hooks/zerofree
-
 cat <<EOM >/etc/initramfs-tools/scripts/local-premount/prompt
 #!/bin/sh
 PREREQ="lvm"
@@ -119,23 +87,14 @@ if lvm lvs --noheadings -o lv_name "${VG}" 2>/dev/null | grep -qs "${SNAPSHOT_LV
   # Perform rollback
   rollback_snapshot
   banner "Restoring OS and booting up"
-
-  create_snapshot
-  banner "Snapshot created!"
+  reboot -f
 else
   # No snapshot
-  banner "First boot after setting up! Will zerofree disk and create snapshot!"
+  banner "First boot after setting up! Will create snapshot!"
 
-  # Perform snapshot creation
-  if [ ! -x "/sbin/zerofree" ]; then
-    panic "zerofree executable not found"
-  fi
-
-  zerofree /dev/${VG}/${ORIGIN_LV}
   create_snapshot
   banner "Snapshot created! Will shut down now."
-
-  poweroff -f
+  reboot -f
 fi
 EOM
 chmod 755 /etc/initramfs-tools/scripts/local-premount/prompt

setup.d/60-disable-radio-modules.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+set -x
+set -e
+
+# On IOI 2023, Acer Aspire 3 notebooks are given to the contestants.
+# These have an Intel i5-1135G7, a FullHD display, 8 GB of DDR4 RAM, 256 GB of NVMe SSD, ethernet port. But they also have a:
+# - webcam
+# - WiFi + Bluetooth card
+# These are hardware components that are not needed for the contest, therefore we disable their drivers.
+
+# YOU MIGHT NEED TO UPDATE THIS IF YOU WILL BE USING A DIFFERENT LAPTOP, OR IF THE OS CHANGES. Therefore, here is an explanation how this part of the configuration was created. Otherwise, it could have been quite magical why certain kernel modules have been disabled.
+
+# It is important to note that it is good practice to use ethernet during a competition since it is more stable than WiFi. We will also use ethernet on IOI 2023.
+
+# While we were trying out the notebooks, we have noticed that the WiFi + Bluetooth did not work due to problems with drivers on Linux. It is probably a feature in this case. I am sure that an update will eventually remove this "feature", therefore I am disabling the card's drivers altogether. (Check https://community.intel.com/t5/Wireless/AX101-Ubuntu-22-04-or-22-10-driver/td-p/1468063) I have tested, on Ubuntu 23.04 and I have updated the kernel to 6.4.0, and both WiFi and Bluetooth worked fine with it.
+# Command `sudo dmesg` showed that there have been attempts on starting up WiFi and Bluetooth even on Ubuntu 22.04 with the current kernel (5.15.0).
+
+# Disable webcam
+# This is done in accordance with https://askubuntu.com/questions/166809/how-can-i-disable-my-webcam
+echo "blacklist uvcvideo" >> /etc/modprobe.d/blacklist.conf
+
+# To disable bluetooth, I disabled the bluetooth kernel module and everything else that depends on it (recursively). Probably disabling only one module would have been sufficient, I am not sure, I had problems if only the `bluetooth` module was disabled.
+
+# So I ran the command `sudo lsmod | grep bluetooth`. I got:
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+# ecdh_generic           XXXXX  X bluetooth
+
+# Therefore btrtl, btintel, btbcm, btusb depend on bluetooth, so I also wanted to disable them.
+# Checking them one-by-one they didn't show any other modules.
+
+# sudo lsmod | grep btrtl
+# btrtl                  XXXXX  X btusb
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+
+# sudo lsmod | grep btintel
+# btintel                XXXXX  X btusb
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+
+# sudo lsmod | grep btbcm
+# btbcm                  XXXXX  X btusb
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+
+# sudo lsmod | grep bnep
+# bnep                   XXXXX  X
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+
+# sudo lsmod | grep btusb
+# btusb                  XXXXX  X
+# btrtl                  XXXXX  X btusb
+# btbcm                  XXXXX  X btusb
+# btintel                XXXXX  X btusb
+# bluetooth             XXXXXX  XX btrtl,btintel,btbcm,bnep,btusb
+
+# I have also disabled the bluetooth service for good measure.
+
+# Disable bluetooth
+echo "blacklist btusb" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist btrtl" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist btbcm" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist btintel" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist bluetooth" >> /etc/modprobe.d/blacklist.conf 	
+systemctl disable bluetooth.service
+
+# From dmesg I got a hint that the WiFi card's kernel module is `iwlwifi`. Then I have went it with the exact same method as in bluetooth (described above).
+# Disable wifi
+echo "blacklist iwlwifi" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist iwlmvm" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist cfg80211" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist mac80211" >> /etc/modprobe.d/blacklist.conf
+echo "blacklist libarc4" >> /etc/modprobe.d/blacklist.conf