Public bug reported: Here is an example. I had several old kernels:
linux-image-3.19.0-49-generic linux-image-4.2.0-25-generic linux-signed-image-3.19.0-49-generic linux-signed-image-4.2.0-25-generic I used apt-get autoremove and here is the result: apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: grub-pc-bin linux-headers-3.19.0-49 linux-headers-3.19.0-49-generic linux-image-3.19.0-49-generic linux-image-4.2.0-25-generic linux-image-extra-3.19.0-49-generic linux-image-extra-4.2.0-25-generic linux-signed-image-3.19.0-49-generic linux-signed-image-4.2.0-25-generic 0 upgraded, 0 newly installed, 9 to remove and 0 not upgraded. After this operation, 502 MB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 211099 files and directories currently installed.) Removing grub-pc-bin (2.02~beta2-9ubuntu1.7) ... Removing linux-headers-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Removing linux-headers-3.19.0-49 (3.19.0-49.55~14.04.1) ... Removing linux-signed-image-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-extra-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic update-initramfs: Generating /boot/initrd.img-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic update-initramfs: Deleting /boot/initrd.img-3.19.0-49-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-signed-image-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-extra-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... depmod: FATAL: could not load /boot/System.map-4.2.0-25-generic: No such file or directory run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic update-initramfs: Generating /boot/initrd.img-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic update-initramfs: Deleting /boot/initrd.img-4.2.0-25-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done apt has executed "update-initramfs" four times! Same for the grub (but here we have 6 times!). Looks like some triggers are not optimized. Didn't find duplicate but probably relates to these issues: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/184852 https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1505805 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574336 https://bugs.dogfood.paddev.net/ubuntu/+source/linux-ports-meta/+bug/303644 https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/798414 ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apt kernel triggers update-initramfs ** Attachment added: "apt-get autoremove log" https://bugs.launchpad.net/bugs/1554455/+attachment/4592491/+files/apt.log ** Package changed: initramfs-tools (Ubuntu) => linux-meta (Ubuntu) ** Description changed: Here is an example. I had several old kernels: linux-image-3.19.0-49-generic linux-image-4.2.0-25-generic linux-signed-image-3.19.0-49-generic linux-signed-image-4.2.0-25-generic I used apt-get autoremove and here is the result: apt-get autoremove Reading package lists... Done - Building dependency tree + Building dependency tree Reading state information... Done The following packages will be REMOVED: - grub-pc-bin linux-headers-3.19.0-49 linux-headers-3.19.0-49-generic - linux-image-3.19.0-49-generic linux-image-4.2.0-25-generic - linux-image-extra-3.19.0-49-generic linux-image-extra-4.2.0-25-generic - linux-signed-image-3.19.0-49-generic linux-signed-image-4.2.0-25-generic + grub-pc-bin linux-headers-3.19.0-49 linux-headers-3.19.0-49-generic + linux-image-3.19.0-49-generic linux-image-4.2.0-25-generic + linux-image-extra-3.19.0-49-generic linux-image-extra-4.2.0-25-generic + linux-signed-image-3.19.0-49-generic linux-signed-image-4.2.0-25-generic 0 upgraded, 0 newly installed, 9 to remove and 0 not upgraded. After this operation, 502 MB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 211099 files and directories currently installed.) Removing grub-pc-bin (2.02~beta2-9ubuntu1.7) ... Removing linux-headers-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Removing linux-headers-3.19.0-49 (3.19.0-49.55~14.04.1) ... Removing linux-signed-image-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-extra-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic update-initramfs: Generating /boot/initrd.img-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-3.19.0-49-generic Found initrd image: /boot/initrd.img-3.19.0-49-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-3.19.0-49-generic (3.19.0-49.55~14.04.1) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic update-initramfs: Deleting /boot/initrd.img-3.19.0-49-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.19.0-49-generic /boot/vmlinuz-3.19.0-49-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-signed-image-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-extra-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... depmod: FATAL: could not load /boot/System.map-4.2.0-25-generic: No such file or directory run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic update-initramfs: Generating /boot/initrd.img-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/pm-utils 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done Removing linux-image-4.2.0-25-generic (4.2.0-25.30~14.04.1) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic update-initramfs: Deleting /boot/initrd.img-4.2.0-25-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.2.0-25-generic /boot/vmlinuz-4.2.0-25-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found linux image: /boot/vmlinuz-4.2.0-30-generic Found initrd image: /boot/initrd.img-4.2.0-30-generic Found linux image: /boot/vmlinuz-4.2.0-27-generic Found initrd image: /boot/initrd.img-4.2.0-27-generic Found linux image: /boot/vmlinuz-3.19.0-51-generic Found initrd image: /boot/initrd.img-3.19.0-51-generic Found Windows Boot Manager on /dev/sda2@/EFI/Microsoft/Boot/bootmgfw.efi Found Ubuntu Xenial Xerus (development branch) (16.04) on /dev/mapper/VG-root Adding boot menu entry for EFI firmware configuration done apt has executed "update-initramfs" four times! Same for the grub (but here we have 6 times!). Looks like some triggers are not optimized. - Didn't find duplicate but probably relates to these issue: + Didn't find duplicate but probably relates to these issues: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/184852 https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1505805 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=574336 https://bugs.dogfood.paddev.net/ubuntu/+source/linux-ports-meta/+bug/303644 https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/798414 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1554455 Title: "update-initramfs" is executed several times when you remove old kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1554455/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
