root@pve:~# apt autoremove
REMOVING:                       
  proxmox-kernel-7.0.2-6-pve-signed  proxmox-kernel-7.0.2-7-pve-signed

Summary:
  Upgrading: 0, Installing: 0, Removing: 2, Not Upgrading: 0
  2 not fully installed or removed.
  Freed space: 2,059 MB

Continue? [Y/n] y
(Reading database ... 127080 files and directories currently installed.)
Removing proxmox-kernel-7.0.2-6-pve-signed (7.0.2-6) ...
Examining /etc/kernel/postrm.d.
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 7.0.2-6-pve /boot/vmlinuz-7.0.2-6-pve
update-initramfs: Deleting /boot/initrd.img-7.0.2-6-pve
run-parts: executing /etc/kernel/postrm.d/proxmox-auto-removal 7.0.2-6-pve /boot/vmlinuz-7.0.2-6-pve
run-parts: executing /etc/kernel/postrm.d/zz-proxmox-boot 7.0.2-6-pve /boot/vmlinuz-7.0.2-6-pve
Re-executing '/etc/kernel/postrm.d/zz-proxmox-boot' in new private mount namespace..
Copying and configuring kernels on /dev/disk/by-uuid/0104-CE60
    Copying kernel and creating boot-entry for 6.17.13-13-pve
    Copying kernel and creating boot-entry for 7.0.12-1-pve
cp: error writing '/var/tmp/espmounts/0104-CE60/EFI/proxmox/7.0.12-1-pve/initrd.img-7.0.12-1-pve': No space left on device
run-parts: /etc/kernel/postrm.d/zz-proxmox-boot exited with return code 1
Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/proxmox-kernel-7.0.2-6-pve-signed.postrm line 15.
dpkg: error processing package proxmox-kernel-7.0.2-6-pve-signed (--remove):
 installed proxmox-kernel-7.0.2-6-pve-signed package post-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Errors were encountered while processing:
 proxmox-kernel-7.0.2-6-pve-signed
Processing was halted because there were too many errors.
Error: Sub-process /usr/bin/dpkg returned an error code (1)
root@pve:~#