I tried updating my proxmox kernel and keep getting this output.

[mattpursuit]

Starting system upgrade: apt-get dist-upgrade Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 5 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] y Setting up pve-kernel-5.13.19-6-pve (5.13.19-15) ... Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.13.19-6-pve /boot/vmlinuz-5.13.19-6-pve run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.13.19-6-pve /boot/vmlinuz-5.13.19-6-pve update-initramfs: Generating /boot/initrd.img-5.13.19-6-pve Running hook script 'zz-proxmox-boot'.. Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync. run-parts: executing /etc/kernel/postinst.d/proxmox-auto-removal 5.13.19-6-pve /boot/vmlinuz-5.13.19-6-pve run-parts: executing /etc/kernel/postinst.d/zz-proxmox-boot 5.13.19-6-pve /boot/vmlinuz-5.13.19-6-pve Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync. run-parts: executing /etc/kernel/postinst.d/zz-update-grub 5.13.19-6-pve /boot/vmlinuz-5.13.19-6-pve /usr/sbin/grub-mkconfig: 1: /etc/default/grub: #: not found run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 127 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/pve-kernel-5.13.19-6-pve.postinst line 19. dpkg: error processing package pve-kernel-5.13.19-6-pve (--configure): installed pve-kernel-5.13.19-6-pve package post-installation script subprocess returned error exit status 2 Setting up pve-kernel-5.15.39-3-pve (5.15.39-3) ... Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.15.39-3-pve /boot/vmlinuz-5.15.39-3-pve run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.15.39-3-pve /boot/vmlinuz-5.15.39-3-pve update-initramfs: Generating /boot/initrd.img-5.15.39-3-pve Running hook script 'zz-proxmox-boot'.. Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync. run-parts: executing /etc/kernel/postinst.d/proxmox-auto-removal 5.15.39-3-pve /boot/vmlinuz-5.15.39-3-pve run-parts: executing /etc/kernel/postinst.d/zz-proxmox-boot 5.15.39-3-pve /boot/vmlinuz-5.15.39-3-pve Re-executing '/etc/kernel/postinst.d/zz-proxmox-boot' in new private mount namespace.. No /etc/kernel/proxmox-boot-uuids found, skipping ESP sync. run-parts: executing /etc/kernel/postinst.d/zz-update-grub 5.15.39-3-pve /boot/vmlinuz-5.15.39-3-pve /usr/sbin/grub-mkconfig: 1: /etc/default/grub: #: not found run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 127 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/pve-kernel-5.15.39-3-pve.postinst line 19. dpkg: error processing package pve-kernel-5.15.39-3-pve (--configure): installed pve-kernel-5.15.39-3-pve package post-installation script subprocess returned error exit status 2 dpkg: dependency problems prevent configuration of pve-kernel-5.13: pve-kernel-5.13 depends on pve-kernel-5.13.19-6-pve; however: Package pve-kernel-5.13.19-6-pve is not configured yet. dpkg: error processing package pve-kernel-5.13 (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of pve-kernel-5.15: pve-kernel-5.15 depends on pve-kernel-5.15.39-3-pve; however: Package pve-kernel-5.15.39-3-pve is not configured yet. dpkg: error processing package pve-kernel-5.15 (--configure): dependency problems - leaving unconfigured dpkg: dependency problems prevent configuration of proxmox-ve: proxmox-ve depends on pve-kernel-5.15; however: Package pve-kernel-5.15 is not configured yet. dpkg: error processing package proxmox-ve (--configure): dependency problems - leaving unconfigured Errors were encountered while processing: pve-kernel-5.13.19-6-pve pve-kernel-5.15.39-3-pve pve-kernel-5.13 pve-kernel-5.15 proxmox-ve E: Sub-process /usr/bin/dpkg returned an error code (1) Your System is up-to-date

 

[gurubert]

It looks like /etc/default/grub is missing, can you confirm that?

/usr/sbin/grub-mkconfig: 1: /etc/default/grub: #: not found

 

[leesteken]

Does you system boot from ZFS with systemd-boot instead of GRUB? Did you uninstall grub? Why is /etc/default/grub missing?