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maci0 / FINDINGS.md
Created February 12, 2026 07:21
RHCOS Version differences

RHCOS Artifact Comparison: ISO vs OVA vs QCOW2

Artifacts Tested

Artifact URL Format Size SHA256
Live ISO rhcos-live-iso.x86_64.iso ISO9660 with embedded cpio containing root.squashfs 1.4 GB 4b75ef7dc939f03bc0a3c383a1e3bc72ba99c8f174fffa50e28ed78e812ecb42
OVA rhcos-vmware.x86_64.ova Tar containing OVF + stream-optimized VMDK 1.4 GB f1c37de7e80fb03cc168596a7c33c26bd8d36c15bdbf544c51283a074d26ba05
QCOW2 (compressed) rhcos-openstack.x86_64.qcow2.gz Gzip-compressed QCOW2 disk image 1.4 GB 8836c77b4cde31cef3c5e10e4d97e75dab1b1eba5e441ee72eb466dd221e3c83
QCOW2 (decompressed) - QCOW2 disk image 2.2 GB 3b936203c1c7a15841a0a0d96de9a80a53dcfdf03faf1b979948196fbdb8b31c

follow setup guide

vagrant up
vagrant ssh

enable extras repo and update docker

sudo subscription-manager repos --enable rhel-7-server-extras-rpms
sudo yum -y upgrade