Initial steps to get proxmox setup#

Open shell in the web interface#

Create a backup of the default sources

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mv /etc/apt/sources.list.d/pve-enterprise.sources /etc/apt/sources.list.d/pve-enterprise.sources.bak

Create a new file for the sources

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cat <<EOF | tee /etc/apt/sources.list.d/proxmox.sources
Types: deb
URIs: http://download.proxmox.com/debian/pve
Suites: trixie
Components: pve-no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF

Create a backup of the default ceph sources

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mv /etc/apt/sources.list.d/ceph.sources /etc/apt/sources.list.d/ceph.sources.bak

Create a new file for the ceph sources

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cat <<EOF | tee /etc/apt/sources.list.d/new-ceph.sources
Types: deb
URIs: http://download.proxmox.com/debian/ceph-squid
Suites: trixie
Components: no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF

Update the system with the new sources

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apt update && apt dist-upgrade -y

Full Script#

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mv /etc/apt/sources.list.d/pve-enterprise.sources /etc/apt/sources.list.d/pve-enterprise.sources.bak
cat <<EOF | tee /etc/apt/sources.list.d/proxmox.sources
Types: deb
URIs: http://download.proxmox.com/debian/pve
Suites: trixie
Components: pve-no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF
mv /etc/apt/sources.list.d/ceph.sources /etc/apt/sources.list.d/ceph.sources.bak
cat <<EOF | tee /etc/apt/sources.list.d/new-ceph.sources
Types: deb
URIs: http://download.proxmox.com/debian/ceph-squid
Suites: trixie
Components: no-subscription
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF
apt update && apt dist-upgrade -y