Package: initramfs-tools Version: 0.135
uname -a output:- Linux roblaptop 5.4.0-2-amd64 #1 SMP Debian 5.4.8-1 (2020-01-05) x86_64 GNU/Linux Processing triggers for libglib2.0-0:amd64 (2.62.4-1) ... Processing triggers for libc-bin (2.29-7) ... Processing triggers for systemd (244-3) ... Processing triggers for man-db (2.9.0-2) ... Processing triggers for dbus (1.12.16-2) ... Processing triggers for initramfs-tools (0.135) ... update-initramfs: Generating /boot/initrd.img-5.4.0-2-amd64 W: Possible missing firmware /lib/firmware/rtl_nic/rtl8125a-3.fw for module r8169 depmod: ERROR: ../libkmod/libkmod.c:515 lookup_builtin_file() could not open builtin file '/var/tmp/mkinitramfs_kzFpRd/lib/modules/5.4.0-2- amd64/modules.builtin.bin' depmod: ERROR: ../libkmod/libkmod.c:515 lookup_builtin_file() could not open builtin file '/var/tmp/mkinitramfs_kzFpRd/lib/modules/5.4.0-2- amd64/modules.builtin.bin' The depmod: error lines repeat dozens of times until the boot image generation finishes. I have no idea which package is at fault. However, the laptop boots normally afterwards.