Замените репозитории Bookworm на Trixie:
sed -i 's/bookworm/trixie/g' /etc/apt/sources.listsed -i 's/bookworm/trixie/g' /etc/apt/sources.list.d/pve-enterprise.list
cat > /etc/apt/sources.list.d/proxmox.sources « EOF
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
cat > /etc/apt/sources.list.d/ceph.sources « EOF
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
/etc/apt/sources.list.d/ceph.list
apt update