Hello Community,
i have the same problem here. After Update pve-manager 8.4.4 to 8.4.5
When I call up the WebGUI, a blank screen appears. I cant do anything.
What information can I provide to fix the problem?
Best regards, Thomas
View attachment 88599
/var/log/apt/term.log
Code:grep -C3 -Ei 'error|warn|fail' /var/log/apt/term.log Generating grub configuration file ... Found linux image: /boot/vmlinuz-6.8.12-11-pve Found initrd image: /boot/initrd.img-6.8.12-11-pve /usr/sbin/grub-probe: error: unknown filesystem. Found linux image: /boot/vmlinuz-6.8.12-10-pve Found initrd image: /boot/initrd.img-6.8.12-10-pve Found linux image: /boot/vmlinuz-6.5.13-6-pve Found initrd image: /boot/initrd.img-6.5.13-6-pve Found linux image: /boot/vmlinuz-6.5.11-8-pve Found initrd image: /boot/initrd.img-6.5.11-8-pve /usr/sbin/grub-probe: error: unknown filesystem. Adding boot menu entry for UEFI Firmware Settings ... done Processing triggers for pve-ha-manager (4.0.7) ... -- Generating grub configuration file ... Found linux image: /boot/vmlinuz-6.8.12-13-pve Found initrd image: /boot/initrd.img-6.8.12-13-pve /usr/sbin/grub-probe: error: unknown filesystem. Found linux image: /boot/vmlinuz-6.8.12-11-pve Found initrd image: /boot/initrd.img-6.8.12-11-pve Found linux image: /boot/vmlinuz-6.8.12-10-pve -- Found initrd image: /boot/initrd.img-6.5.13-6-pve Found linux image: /boot/vmlinuz-6.5.11-8-pve Found initrd image: /boot/initrd.img-6.5.11-8-pve /usr/sbin/grub-probe: error: unknown filesystem. Adding boot menu entry for UEFI Firmware Settings ... done Setting up pve-firmware (3.16-3) ... ... Log ended: 2025-07-18 09:50:40 Log started: 2025-07-29 09:54:46 (Reading database ... 78119 files and directories currently installed.) Preparing to unpack .../00-libnvpair3linux_2.2.8-pve1_amd64.deb ... Unpacking libnvpair3linux (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../01-libproxmox-backup-qemu0_1.5.2_amd64.deb ... Unpacking libproxmox-backup-qemu0 (1.5.2) over (1.5.1) ... Preparing to unpack .../02-libpve-notify-perl_8.1.2_all.deb ... Unpacking libpve-notify-perl (8.1.2) over (8.1.1) ... Preparing to unpack .../03-libpve-cluster-api-perl_8.1.2_all.deb ... Unpacking libpve-cluster-api-perl (8.1.2) over (8.1.1) ... Preparing to unpack .../04-libpve-cluster-perl_8.1.2_all.deb ... Unpacking libpve-cluster-perl (8.1.2) over (8.1.1) ... Preparing to unpack .../05-libuutil3linux_2.2.8-pve1_amd64.deb ... Unpacking libuutil3linux (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../06-libzfs4linux_2.2.8-pve1_amd64.deb ... Unpacking libzfs4linux (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../07-libzpool5linux_2.2.8-pve1_amd64.deb ... Unpacking libzpool5linux (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../08-proxmox-backup-client_3.4.3-1_amd64.deb ... Unpacking proxmox-backup-client (3.4.3-1) over (3.4.2-1) ... Preparing to unpack .../09-proxmox-backup-file-restore_3.4.3-1_amd64.deb ... Unpacking proxmox-backup-file-restore (3.4.3-1) over (3.4.2-1) ... Preparing to unpack .../10-pve-firmware_3.16-3_all.deb ... Unpacking pve-firmware (3.16-3) over (3.15-4) ... Selecting previously unselected package proxmox-kernel-6.8.12-13-pve-signed. Preparing to unpack .../11-proxmox-kernel-6.8.12-13-pve-signed_6.8.12-13_amd64.deb ... Unpacking proxmox-kernel-6.8.12-13-pve-signed (6.8.12-13) ... Preparing to unpack .../12-proxmox-kernel-6.8_6.8.12-13_all.deb ... Unpacking proxmox-kernel-6.8 (6.8.12-13) over (6.8.12-11) ... Preparing to unpack .../13-proxmox-kernel-helper_8.1.4_all.deb ... Unpacking proxmox-kernel-helper (8.1.4) over (8.1.1) ... Preparing to unpack .../14-proxmox-widget-toolkit_4.3.12_all.deb ... Unpacking proxmox-widget-toolkit (4.3.12) over (4.3.11) ... Preparing to unpack .../15-pve-cluster_8.1.2_amd64.deb ... Unpacking pve-cluster (8.1.2) over (8.1.1) ... Preparing to unpack .../16-pve-container_5.3.0_all.deb ... Unpacking pve-container (5.3.0) over (5.2.7) ... Preparing to unpack .../17-pve-edk2-firmware-ovmf_4.2025.02-4~bpo12+1_all.deb ... Unpacking pve-edk2-firmware-ovmf (4.2025.02-4~bpo12+1) over (4.2025.02-3) ... Preparing to unpack .../18-pve-edk2-firmware-legacy_4.2025.02-4~bpo12+1_all.deb ... Unpacking pve-edk2-firmware-legacy (4.2025.02-4~bpo12+1) over (4.2025.02-3) ... Preparing to unpack .../19-pve-edk2-firmware_4.2025.02-4~bpo12+1_all.deb ... Unpacking pve-edk2-firmware (4.2025.02-4~bpo12+1) over (4.2025.02-3) ... Preparing to unpack .../20-pve-manager_8.4.5_all.deb ... Unpacking pve-manager (8.4.5) over (8.4.1) ... Preparing to unpack .../21-pve-qemu-kvm_9.2.0-7_amd64.deb ... Unpacking pve-qemu-kvm (9.2.0-7) over (9.2.0-6) ... Preparing to unpack .../22-spl_2.2.8-pve1_all.deb ... Unpacking spl (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../23-zfs-initramfs_2.2.8-pve1_all.deb ... Unpacking zfs-initramfs (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../24-zfsutils-linux_2.2.8-pve1_amd64.deb ... Unpacking zfsutils-linux (2.2.8-pve1) over (2.2.7-pve2) ... Preparing to unpack .../25-zfs-zed_2.2.8-pve1_amd64.deb ... Unpacking zfs-zed (2.2.8-pve1) over (2.2.7-pve2) ... Setting up proxmox-backup-file-restore (3.4.3-1) ... Updating file-restore initramfs... 14327 blocks Setting up libnvpair3linux (2.2.8-pve1) ... Setting up proxmox-widget-toolkit (4.3.12) ... Setting up proxmox-kernel-6.8.12-13-pve-signed (6.8.12-13) ... Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/initramfs-tools 6.8.12-13-pve /boot/vmlinuz-6.8.12-13-pve update-initramfs: Generating /boot/initrd.img-6.8.12-13-pve Running hook script 'zz-proxmox-boot'.. Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. Copying and configuring kernels on /dev/disk/by-uuid/F227-8F14 Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve Removing old version 6.8.12-10-pve Copying and configuring kernels on /dev/disk/by-uuid/F227-E17D Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve Removing old version 6.8.12-10-pve run-parts: executing /etc/kernel/postinst.d/proxmox-auto-removal 6.8.12-13-pve /boot/vmlinuz-6.8.12-13-pve run-parts: executing /etc/kernel/postinst.d/zz-proxmox-boot 6.8.12-13-pve /boot/vmlinuz-6.8.12-13-pve Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. Copying and configuring kernels on /dev/disk/by-uuid/F227-8F14 Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve Copying and configuring kernels on /dev/disk/by-uuid/F227-E17D Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve run-parts: executing /etc/kernel/postinst.d/zz-update-grub 6.8.12-13-pve /boot/vmlinuz-6.8.12-13-pve Generating grub configuration file ... Found linux image: /boot/vmlinuz-6.8.12-13-pve Found initrd image: /boot/initrd.img-6.8.12-13-pve /usr/sbin/grub-probe: error: unknown filesystem. Found linux image: /boot/vmlinuz-6.8.12-11-pve Found initrd image: /boot/initrd.img-6.8.12-11-pve Found linux image: /boot/vmlinuz-6.8.12-10-pve Found initrd image: /boot/initrd.img-6.8.12-10-pve Found linux image: /boot/vmlinuz-6.5.13-6-pve Found initrd image: /boot/initrd.img-6.5.13-6-pve Found linux image: /boot/vmlinuz-6.5.11-8-pve Found initrd image: /boot/initrd.img-6.5.11-8-pve /usr/sbin/grub-probe: error: unknown filesystem. Adding boot menu entry for UEFI Firmware Settings ... done Setting up pve-firmware (3.16-3) ... Setting up pve-edk2-firmware-ovmf (4.2025.02-4~bpo12+1) ... Setting up pve-cluster (8.1.2) ... Setting up proxmox-kernel-helper (8.1.4) ... Installing new version of config file /etc/kernel/postinst.d/zz-proxmox-boot ... Installing new version of config file /etc/kernel/postrm.d/zz-proxmox-boot ... Re-executing '/usr/sbin/proxmox-boot-tool' in new private mount namespace.. UUID="F227-8F14" SIZE="1073741824" FSTYPE="vfat" PARTTYPE="c12a7328-f81f-11d2-ba4b-00a0c93ec93b" PKNAME="nvme0n1" MOUNTPOINT="" Mounting '/dev/disk/by-uuid/F227-8F14' on '/var/tmp/espmounts/F227-8F14'. Installing systemd-boot.. Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/F227-8F14/EFI/systemd/systemd-bootx64.efi". Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/F227-8F14/EFI/BOOT/BOOTX64.EFI". Random seed file /var/tmp/espmounts/F227-8F14/loader/random-seed successfully written (32 bytes). Created EFI boot entry "Linux Boot Manager". Configuring systemd-boot.. Unmounting '/dev/disk/by-uuid/F227-8F14'. Adding '/dev/disk/by-uuid/F227-8F14' to list of synced ESPs.. UUID="F227-E17D" SIZE="1073741824" FSTYPE="vfat" PARTTYPE="c12a7328-f81f-11d2-ba4b-00a0c93ec93b" PKNAME="nvme1n1" MOUNTPOINT="" Mounting '/dev/disk/by-uuid/F227-E17D' on '/var/tmp/espmounts/F227-E17D'. Installing systemd-boot.. Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/F227-E17D/EFI/systemd/systemd-bootx64.efi". Copied "/usr/lib/systemd/boot/efi/systemd-bootx64.efi" to "/var/tmp/espmounts/F227-E17D/EFI/BOOT/BOOTX64.EFI". Random seed file /var/tmp/espmounts/F227-E17D/loader/random-seed successfully written (32 bytes). Created EFI boot entry "Linux Boot Manager". Configuring systemd-boot.. Unmounting '/dev/disk/by-uuid/F227-E17D'. Adding '/dev/disk/by-uuid/F227-E17D' to list of synced ESPs.. Setting up proxmox-backup-client (3.4.3-1) ... Setting up spl (2.2.8-pve1) ... Setting up pve-edk2-firmware-legacy (4.2025.02-4~bpo12+1) ... Setting up libpve-cluster-perl (8.1.2) ... Setting up libuutil3linux (2.2.8-pve1) ... Setting up pve-edk2-firmware (4.2025.02-4~bpo12+1) ... Setting up proxmox-kernel-6.8 (6.8.12-13) ... Setting up libproxmox-backup-qemu0 (1.5.2) ... Setting up libzpool5linux (2.2.8-pve1) ... Setting up libpve-cluster-api-perl (8.1.2) ... Setting up libpve-notify-perl (8.1.2) ... Setting up pve-container (5.3.0) ... Setting up pve-qemu-kvm (9.2.0-7) ... Setting up pve-manager (8.4.5) ... Setting up libzfs4linux (2.2.8-pve1) ... Setting up zfsutils-linux (2.2.8-pve1) ... Setting up zfs-initramfs (2.2.8-pve1) ... Setting up zfs-zed (2.2.8-pve1) ... Processing triggers for pve-ha-manager (4.0.7) ... Processing triggers for initramfs-tools (0.142+deb12u3) ... update-initramfs: Generating /boot/initrd.img-6.8.12-13-pve Running hook script 'zz-proxmox-boot'.. Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. Copying and configuring kernels on /dev/disk/by-uuid/F227-8F14 Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve Copying and configuring kernels on /dev/disk/by-uuid/F227-E17D Copying kernel and creating boot-entry for 6.5.13-6-pve Copying kernel and creating boot-entry for 6.8.12-11-pve Copying kernel and creating boot-entry for 6.8.12-13-pve Processing triggers for hicolor-icon-theme (0.17-2) ... Processing triggers for libc-bin (2.36-9+deb12u10) ... Processing triggers for man-db (2.11.2-2) ... Processing triggers for mailcap (3.70+nmu1) ... Log ended: 2025-07-29 09:56:39
Code:pveversion -v proxmox-ve: 8.4.0 (running kernel: 6.8.12-13-pve) pve-manager: 8.4.5 (running version: 8.4.5/57892e8e686cb35b) proxmox-kernel-helper: 8.1.4 proxmox-kernel-6.8.12-13-pve-signed: 6.8.12-13 proxmox-kernel-6.8: 6.8.12-13 proxmox-kernel-6.8.12-11-pve-signed: 6.8.12-11 proxmox-kernel-6.8.12-10-pve-signed: 6.8.12-10 proxmox-kernel-6.5.13-6-pve-signed: 6.5.13-6 proxmox-kernel-6.5: 6.5.13-6 proxmox-kernel-6.5.11-8-pve-signed: 6.5.11-8 ceph-fuse: 17.2.7-pve2 corosync: 3.1.9-pve1 criu: 3.17.1-2+deb12u1 glusterfs-client: 10.3-5 ifupdown2: 3.2.0-1+pmx11 ksm-control-daemon: 1.5-1 libjs-extjs: 7.0.0-5 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: 8.2.2 libpve-apiclient-perl: 3.3.2 libpve-cluster-api-perl: 8.1.2 libpve-cluster-perl: 8.1.2 libpve-common-perl: 8.3.2 libpve-guest-common-perl: 5.2.2 libpve-http-server-perl: 5.2.2 libpve-network-perl: 0.11.2 libpve-rs-perl: 0.9.4 libpve-storage-perl: 8.3.6 libspice-server1: 0.15.1-1 lvm2: 2.03.16-2 lxc-pve: 6.0.0-1 lxcfs: 6.0.0-pve2 novnc-pve: 1.6.0-2 proxmox-backup-client: 3.4.3-1 proxmox-backup-file-restore: 3.4.3-1 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-offline-mirror-helper: 0.6.7 proxmox-widget-toolkit: 4.3.12 pve-cluster: 8.1.2 pve-container: 5.3.0 pve-docs: 8.4.0 pve-edk2-firmware: 4.2025.02-4~bpo12+1 pve-esxi-import-tools: 0.7.4 pve-firewall: 5.1.2 pve-firmware: 3.16-3 pve-ha-manager: 4.0.7 pve-i18n: 3.4.5 pve-qemu-kvm: 9.2.0-7 pve-xtermjs: 5.5.0-2 qemu-server: 8.4.1 smartmontools: 7.3-pve1 spiceterm: 3.3.0 swtpm: 0.8.0+pve1 vncterm: 1.8.0 zfsutils-linux: 2.2.8-pve1
Solution for me:
https://github.com/bashclub/proxmox-zfs-postinstall
Important
Please download the updated version of this script and re-run, if your Proxmox WebUI doesn't show up after update to 8.4.5 or 9.0.0 beta