Unattended upgrade result: No packages found that can be upgraded unattended and no pending auto-removals Warning: A reboot is required to complete this upgrade, or a previous one. Packages that were auto-removed: linux-image-5.10.0-0.bpo.4-amd64 Package installation log: Log started: 2021-08-03 06:54:22 Removing linux-image-5.10.0-0.bpo.4-amd64 (5.10.19-1~bpo10+1) ... /etc/kernel/postrm.d/initramfs-tools: update-initramfs: Deleting /boot/initrd.img-5.10.0-0.bpo.4-amd64 /etc/kernel/postrm.d/zz-update-grub: Generating grub configuration file ... Found linux image: /boot/vmlinuz-5.10.0-0.bpo.7-amd64 Found initrd image: /boot/initrd.img-5.10.0-0.bpo.7-amd64 Found linux image: /boot/vmlinuz-5.10.0-0.bpo.5-amd64 Found initrd image: /boot/initrd.img-5.10.0-0.bpo.5-amd64 Found linux image: /boot/vmlinuz-5.10.0-0.bpo.3-amd64 Found initrd image: /boot/initrd.img-5.10.0-0.bpo.3-amd64 done Log ended: 2021-08-03 06:54:24 Unattended-upgrades log: Initial blacklist : Initial whitelist: Starting unattended upgrades script Allowed origins are: origin=Debian,codename=buster,label=Debian, origin=Debian,codename=buster,label=Debian-Security Removing unused kernel packages: linux-image-5.10.0-0.bpo.4-amd64 Packages that were successfully auto-removed: linux-image-5.10.0-0.bpo.4-amd64 Packages that are kept back: No packages found that can be upgraded unattended and no pending auto-removals