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Add error checking #9

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8 changes: 8 additions & 0 deletions ubuntu/18.04/build-disk.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,14 @@ set -e
# lookup specific binaries
: "${BIN_QEMU_IMG:=$(type -P qemu-img)}"
: "${BIN_KVM:=$(type -P kvm)}"
if [ -z "$BIN_QEMU_IMG" ]; then
echo qemu-img not found
exit 2
fi
if [ -z "$BIN_KVM" ]; then
echo kvm not found
exit 2
fi

# get parameters
RAM_SIZE=${1:-"2048"}
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48 changes: 41 additions & 7 deletions ubuntu/18.04/build-iso.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,41 @@ set -e
# lookup specific binaries
: "${BIN_7Z:=$(type -P 7z)}"
: "${BIN_XORRISO:=$(type -P xorriso)}"
: "${BIN_DOS2UNIX:=$(type -P dos2unix)}"
: "${BIN_WGET:=$(type -P wget)}"
: "${HYBRID:=$(echo /usr/lib/ISOLINUX/isohdpfx.bin)}"
if [ -z "$BIN_WGET" ]; then
echo wget not found
exit 2
fi
if [ -z "$BIN_XORRISO" ]; then
echo xorriso not found
exit 2
fi
if [ -z "$BIN_DOS2UNIX" ]; then
echo dos2unix not found
exit 2
fi
if [ -z "$BIN_7Z" ]; then
echo 7z not found
exit 2
fi
if [ \! -f "$HYBRID" ]; then
echo Please install isolinux
exit 2
fi


# get parameters
SSH_PUBLIC_KEY_FILE=${1:-"$HOME/.ssh/id_rsa.pub"}
TARGET_ISO=${2:-"`pwd`/ubuntu-18.04-netboot-amd64-unattended.iso"}

# check if target iso exists
if [ -f "$TARGET_ISO" ]; then
echo "Target ISO ($TARGET_ISO) already exists."
exit
fi

# check if ssh key exists
if [ ! -f "$SSH_PUBLIC_KEY_FILE" ];
then
Expand All @@ -23,15 +53,19 @@ TMP_DOWNLOAD_DIR="`mktemp -d`"
TMP_DISC_DIR="`mktemp -d`"
TMP_INITRD_DIR="`mktemp -d`"

# download and extract netboot iso
SOURCE_ISO_URL="http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/mini.iso"
cd "$TMP_DOWNLOAD_DIR"
wget -4 "$SOURCE_ISO_URL" -O "./netboot.iso"
"$BIN_7Z" x "./netboot.iso" "-o$TMP_DISC_DIR"
if [ ! -f "$SCRIPT_DIR/netboot.iso" ]; then
# download and extract netboot iso
SOURCE_ISO_URL="http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/current/images/netboot/mini.iso"
cd "$TMP_DOWNLOAD_DIR"
"$BIN_WGET" -4 "$SOURCE_ISO_URL" -O "./netboot.iso"
mv "$TMP_DOWNLOAD_DIR/netboot.iso" "$SCRIPT_DIR"
fi

"$BIN_7Z" x "$SCRIPT_DIR/netboot.iso" "-o$TMP_DISC_DIR"

# patch boot menu
cd "$TMP_DISC_DIR"
dos2unix "./isolinux.cfg"
"$BIN_DOS2UNIX" "./isolinux.cfg"
patch -p1 -i "$SCRIPT_DIR/custom/boot-menu.patch"

# prepare assets
Expand All @@ -51,7 +85,7 @@ cat "./initrd" | gzip -9c > "$TMP_DISC_DIR/initrd.gz"
# build iso
cd "$TMP_DISC_DIR"
rm -r '[BOOT]'
"$BIN_XORRISO" -as mkisofs -r -V "ubuntu_1804_netboot_unattended" -J -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -input-charset utf-8 -isohybrid-mbr /usr/lib/ISOLINUX/isohdpfx.bin -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -o "$TARGET_ISO" ./
"$BIN_XORRISO" -as mkisofs -r -V "ubuntu_1804_netboot_unattended" -J -b isolinux.bin -c boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -input-charset utf-8 -isohybrid-mbr "$HYBRID" -eltorito-alt-boot -e boot/grub/efi.img -no-emul-boot -isohybrid-gpt-basdat -o "$TARGET_ISO" ./

# go back to initial directory
cd "$CURRENT_DIR"
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