create-kubernetes-binaries-iso.sh builds the ISO without setting a volume ID on EL8 based os's

Bắt đầu trong create-kubernetes-binaries-iso.sh và tìm lệnh mkisofs tạo ISO. Tái hiện vấn đề bằng các công cụ tương thích với xorriso của EL8, sau đó xác minh bằng blkid rằng ISO được tạo có nhãn volume CDROM như mong đợi và có thể được mount trong CloudStack.

problem

create-kubernetes-binaries-iso.sh builds the ISO without setting a volume ID on EL8 based os

versions

ACS 4.20.X
ACS 4.22.X
ACS 4.23
Management server : Oracle 8 , rocky 8

The steps to reproduce the bug

1. ISO tooling — genisoimage does not exist on EL8; xorriso provides mkisofs

sudo dnf install -y xorriso curl wget

2. containerd (for ctr) — static tarball avoids the docker-ce repo and podman conflicts

VER=1.7.24
curl -fsSL "https://github.com/containerd/containerd/releases/download/v${VER}/containerd-${VER}-linux-amd64.tar.gz" \
  | sudo tar -C /usr/local -xz
curl -fsSL -o /tmp/runc https://github.com/opencontainers/runc/releases/download/v1.2.3/runc.amd64
sudo install -m 755 /tmp/runc /usr/local/sbin/runc
curl -fsSL https://raw.githubusercontent.com/containerd/containerd/main/containerd.service \
  | sudo tee /etc/systemd/system/containerd.service >/dev/null
sudo systemctl daemon-reload && sudo systemctl enable --now containerd
sudo ln -sf /usr/local/bin/ctr /usr/bin/ctr      # sudo secure_path excludes /usr/local/bin

3. Verify

mkisofs --version && sudo ctr --version && wget --version | head -1 && curl --version | head -1

4. Execute the script

./create-kubernetes-binaries-iso.sh   /var/www/html   1.37.0 1.9.1 1.37.0   https://raw.githubusercontent.com/projectcalico/calico/v3.32.2/manifests/calico.yaml   0.45.0 setup-v1.37.0 amd64 3.7.0

5. Verify the generated iso volume label

[root@ref-trl-12298-k-Mr8-suresh-anaparti-mgmt1 util]# blkid /var/www/html/setup-v1.37.0-x86_64.iso

/var/www/html/setup-v1.37.0-x86_64.iso: BLOCK_SIZE="2048" UUID="2026-09-16-08-13-12-00" LABEL="ISOIMAGE" TYPE="iso9660"

6. If the iso is used in cloudstack , the iso doesn't get mounted

7. Change the script

sed -i 's|^mkisofs -o |mkisofs -V CDROM -o |' create-kubernetes-binaries-iso.sh

8. Run the script again and check the volume label

./create-kubernetes-binaries-iso.sh   /var/www/html   1.37.0 1.9.1 1.37.0   https://raw.githubusercontent.com/projectcalico/calico/v3.32.2/manifests/calico.yaml   0.45.0 setup-v1.37.0 amd64 3.7.0


blkid /var/www/html/setup-v1.37.0-x86_64.iso
/var/www/html/setup-v1.37.0-x86_64.iso: BLOCK_SIZE="2048" UUID="2026-09-16-08-34-56-00" LABEL="CDROM" TYPE="iso9660"

Issue is not present with ubuntu based os

┌──────────────────────┬───────────────┬───────────────────┐
│                      │ Default volid │   With -V CDROM   │
├──────────────────────┼───────────────┼───────────────────┤
│ Ubuntu (genisoimage) │ CDROM         │ CDROM — unchanged │
├──────────────────────┼───────────────┼───────────────────┤
│ OL8 (xorriso compat) │ ISOIMAGE      │ CDROM — fixed     │
└──────────────────────┴───────────────┴───────────────────┘

What to do about it?

Make the following modification to the create-kubernetes-binaries-iso.sh

sed -i 's|^mkisofs -o |mkisofs -V CDROM -o |' create-kubernetes-binaries-iso.sh