Qcow2 To Iso | Limited |

xorriso -as mkisofs -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o bootable.iso iso/ This only works if the QCOW2 contains a Linux kernel and initrd. Windows QCOW2 cannot be directly turned into a bootable ISO because Windows requires a writable system drive. 4.4 Using virt-make-fs for Simplicity libguestfs provides virt-make-fs to create filesystem images from directories. To go QCOW2 → ISO, combine virt-copy-out with mkisofs or use virt-make-fs to create a raw filesystem, then convert that to ISO.

sudo mkisofs -o output.iso -R -J /tmp/iso_contents/ Loses partition metadata, bootloaders, and multiple independent root filesystems. The resulting ISO is non-bootable unless manually configured. 4.2 Selective File Extraction (Using libguestfs) More precise and does not require root (beyond libguestfs setup).

echo "ISO created: $ISO_OUT"

#!/bin/bash # qcow2_to_iso.sh - Convert QCOW2 to ISO (non-bootable) set -e QCOW2="$1" ISO_OUT="$2:-output.iso" MOUNT_POINT="/mnt/qcow2_mnt" EXTRACT_DIR="/tmp/iso_extract"

virt-copy-out -a disk.qcow2 / dest/ mkisofs -o intermediate.iso dest/ But virt-make-fs outputs ext4, not ISO. So manual ISO creation remains necessary. Below is a robust bash script using guestmount (requires root) for full partition extraction to ISO.