Hello. I am attempting to upgrade our ProxMox cluster to version 9 using this guide: https://pve.proxmox.com/wiki/Upgrade_from_8_to_9#Continuously_use_the_pve8to9_checklist_script
I am encountering the issues with pve repositories.
After adding the new repository to our node using this command:
I am getting an error on GUI:

And if I am trying to run the upgrade, I am getting the "You are attempting to remove the meta-package 'proxmox-ve'!" error.
We are using community subscription, which gives us access to enterprise repository.
dpkg --list | grep linux-image command returns no output.
May it be because of Debian repositories in the source list, and is it safe to remove them?

Thank you for your replies!
I am encountering the issues with pve repositories.
After adding the new repository to our node using this command:
Code:
cat > /etc/apt/sources.list.d/pve-enterprise.sources << EOF
Types: deb
URIs: https://enterprise.proxmox.com/debian/pve
Suites: trixie
Components: pve-enterprise
Signed-By: /usr/share/keyrings/proxmox-archive-keyring.gpg
EOF

And if I am trying to run the upgrade, I am getting the "You are attempting to remove the meta-package 'proxmox-ve'!" error.
We are using community subscription, which gives us access to enterprise repository.
Code:
root@dc1pve1:~# pveversion -v
Target Packages (pve-enterprise/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list.d/pve-enterprise.list:1 and /etc/apt/sources.list.d/pve-enterprise.sources:1
Target Packages (pve-enterprise/binary-all/Packages) is configured multiple times in /etc/apt/sources.list.d/pve-enterprise.list:1 and /etc/apt/sources.list.d/pve-enterprise.sources:1
Target Translations (pve-enterprise/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list.d/pve-enterprise.list:1 and /etc/apt/sources.list.d/pve-enterprise.sources:1
proxmox-ve: 8.4.0 (running kernel: 6.8.12-22-pve)
pve-manager: 8.4.19 (running version: 8.4.19/a68fb383814bb1e6)
proxmox-kernel-helper: 8.1.4
pve-kernel-6.2: 8.0.5
proxmox-kernel-6.8: 6.8.12-41
proxmox-kernel-6.8.12-41-pve-signed: 6.8.12-41
proxmox-kernel-6.8.12-39-pve-signed: 6.8.12-39
proxmox-kernel-6.8.12-37-pve-signed: 6.8.12-37
proxmox-kernel-6.8.12-22-pve-signed: 6.8.12-22
proxmox-kernel-6.8.12-20-pve-signed: 6.8.12-20
proxmox-kernel-6.8.12-15-pve-signed: 6.8.12-15
proxmox-kernel-6.8.4-2-pve-signed: 6.8.4-2
proxmox-kernel-6.5.13-6-pve-signed: 6.5.13-6
proxmox-kernel-6.5: 6.5.13-6
proxmox-kernel-6.5.13-5-pve-signed: 6.5.13-5
proxmox-kernel-6.5.13-1-pve-signed: 6.5.13-1
proxmox-kernel-6.2.16-20-pve: 6.2.16-20
proxmox-kernel-6.2: 6.2.16-20
pve-kernel-6.2.16-3-pve: 6.2.16-3
ceph: 19.2.5-1~bpo12+2
ceph-fuse: 19.2.5-1~bpo12+2
corosync: 3.1.10-pve2~bpo12+1
criu: 3.17.1-2+deb12u2
glusterfs-client: 10.3-5
ifupdown2: 3.2.0-1+pmx11
ksm-control-daemon: 1.5-1
libjs-extjs: 7.0.0-6
libknet1: 1.30-pve2
libproxmox-acme-perl: 1.6.0
libproxmox-backup-qemu0: 1.5.2
libproxmox-rs-perl: 0.3.5
libpve-access-control: 8.2.3
libpve-apiclient-perl: 3.3.2
libpve-cluster-api-perl: 8.1.3
libpve-cluster-perl: 8.1.3
libpve-common-perl: 8.3.8
libpve-guest-common-perl: 5.2.2
libpve-http-server-perl: 5.2.2
libpve-network-perl: 0.11.3
libpve-rs-perl: 0.9.4
libpve-storage-perl: 8.3.8
libspice-server1: 0.15.1-1
lvm2: 2.03.16-2
lxc-pve: 6.0.0-2
lxcfs: 6.0.0-pve2
novnc-pve: 1.6.0-2.1
proxmox-backup-client: 3.4.7-1
proxmox-backup-file-restore: 3.4.7-1
proxmox-backup-restore-image: 0.7.0
proxmox-firewall: 0.7.1
proxmox-kernel-helper: 8.1.4
proxmox-mail-forward: 0.3.3
proxmox-mini-journalreader: 1.5
proxmox-widget-toolkit: 4.3.17
pve-cluster: 8.1.3
pve-container: 5.3.6
pve-docs: 8.4.2
pve-edk2-firmware: 4.2025.05-1~bpo12+1
pve-esxi-import-tools: 0.7.4
pve-firewall: 5.1.3
pve-firmware: 3.16-3
pve-ha-manager: 4.0.7
pve-i18n: 3.4.5
pve-qemu-kvm: 9.2.0-8
pve-xtermjs: 5.5.0-2
qemu-server: 8.4.9
smartmontools: 7.3-pve1
spiceterm: 3.3.1
swtpm: 0.8.0+pve1
vncterm: 1.8.2
zfsutils-linux: 2.2.10-pve1
dpkg --list | grep linux-image command returns no output.
May it be because of Debian repositories in the source list, and is it safe to remove them?

Thank you for your replies!