this will uninstall proxmox:
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
arch-test augeas-lenses cryptsetup-bin db-util db5.3-util debootstrap exfat-fuse exfat-utils f2fs-tools hfsplus icoutils kpartx ldmtool libafflib0v5 libaugeas0 libbfio1
libconfig9 libdate-manip-perl libewf2 libfdt1 libfuse3-3 libhfsp0 libhivex0 libintl-perl libintl-xs-perl libjs-qrcodejs libjson-glib-1.0-0 libjson-glib-1.0-common
libldm-1.0-0 libleveldb1d libnetpbm10 libntfs-3g883 liboath0 libposix-strptime-perl libproxmox-backup-qemu0 libpve-cluster-api-perl libqrencode4 librabbitmq4 librdkafka1
librgw2 libsys-virt-perl libtpms0 libtsk19 liburing1 libvhdi1 libvirt0 libvmdk1 libwin-hivex-perl libyajl2 libyara4 lsscsi mdadm netpbm ntfs-3g osinfo-db
proxmox-archive-keyring proxmox-backup-client proxmox-backup-file-restore proxmox-backup-restore-image proxmox-websocket-tunnel pve-lxc-syscalld python-ceph-argparse
qrencode reiserfsprogs scrub sleuthkit squashfs-tools supermin swtpm swtpm-libs swtpm-tools syslinux zerofree zstd
Use 'apt autoremove' to remove them.
The following additional packages will be installed:
libpython2.7-stdlib python-six python2.7 python2.7-minimal
Suggested packages:
python2.7-doc binfmt-support
The following packages will be REMOVED:
ceph-common libguestfs-hfsplus libguestfs-perl libguestfs-reiserfs libguestfs-tools libguestfs-xfs libguestfs0 libpve-guest-common-perl libpve-storage-perl libpython-stdlib
proxmox-ve pve-container pve-ha-manager pve-manager pve-qemu-kvm python python-asn1crypto python-cephfs python-certifi python-cffi-backend python-configparser
python-cryptography python-enum34 python-future python-idna python-ipaddr python-ipaddress python-minimal python-openssl python-prettytable python-rados python-rbd
python-rgw python-urllib3 qemu-server spiceterm virt-p2v
The following packages will be upgraded:
libpython2.7-minimal libpython2.7-stdlib python-six python2.7 python2.7-minimal
5 upgraded, 0 newly installed, 37 to remove and 4 not upgraded.
Need to get 0 B/3,911 kB of archives.
After this operation, 417 MB disk space will be freed.
Do you want to continue? [Y/n]
followed by on pressed Y
W: (pve-apt-hook) !! WARNING !!
W: (pve-apt-hook) You are attempting to remove the meta-package 'proxmox-ve'!
W: (pve-apt-hook)
W: (pve-apt-hook) If you really want to permanently remove 'proxmox-ve' from your system, run the following command
W: (pve-apt-hook) touch '/please-remove-proxmox-ve'
W: (pve-apt-hook) run apt purge proxmox-ve to remove the meta-package
W: (pve-apt-hook) and repeat your apt invocation.
W: (pve-apt-hook)
W: (pve-apt-hook) If you are unsure why 'proxmox-ve' would be removed, please verify
W: (pve-apt-hook) - your APT repository settings
W: (pve-apt-hook) - that you are using 'apt full-upgrade' to upgrade your system
E: Sub-process /usr/share/proxmox-ve/pve-apt-hook returned an error code (1)
E: Failure running script /usr/share/proxmox-ve/pve-apt-hook
Olaf
P.S. I can open up the new thread if it cannot be solved the easy way