UbuntuやDebianを運用していくと、古いkernelのイメージが溜まっていきます。気持ち悪いので古いのは消します。
まずは、一応、最新のkernelでシステムが起動していることを確認しておきましょう。
root@dell /h/matsu# ls /boot/ System.map-5.0.0-37-generic System.map-5.3.0-26-generic config-5.3.0-24-generic efi/ initrd.img-5.0.0-37-generic initrd.img-5.3.0-26-generic vmlinuz-5.0.0-37-generic vmlinuz-5.3.0-26-generic System.map-5.3.0-24-generic config-5.0.0-37-generic config-5.3.0-26-generic grub/ initrd.img-5.3.0-24-generic lost+found/ vmlinuz-5.3.0-24-generic root@dell /h/matsu# dpkg -l |grep kernel ii kmod 26-1ubuntu1 amd64 tools for managing Linux kernel modules ii libaio1:amd64 0.3.112-5 amd64 Linux kernel AIO access library - shared library ii libdrm-amdgpu1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to amdgpu-specific kernel DRM services -- runtime ii libdrm-common 2.4.99-1ubuntu1 all Userspace interface to kernel DRM services -- common files ii libdrm-intel1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to intel-specific kernel DRM services -- runtime ii libdrm-nouveau2:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime ii libdrm-radeon1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to radeon-specific kernel DRM services -- runtime ii libdrm2:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to kernel DRM services -- runtime ii linux-firmware 1.183.3 all Firmware for Linux kernel drivers ii linux-generic 5.3.0.26.30 amd64 Complete Generic Linux kernel and headers ii linux-headers-5.3.0-24 5.3.0-24.26 all Header files related to Linux kernel version 5.3.0 ii linux-headers-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel headers for version 5.3.0 on 64 bit x86 SMP ii linux-headers-5.3.0-26 5.3.0-26.28 all Header files related to Linux kernel version 5.3.0 ii linux-headers-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel headers for version 5.3.0 on 64 bit x86 SMP ii linux-headers-generic 5.3.0.26.30 amd64 Generic Linux kernel headers rc linux-image-4.15.0-72-generic 4.15.0-72.81 amd64 Signed kernel image generic rc linux-image-4.4.0-170-generic 4.4.0-170.199 amd64 Signed kernel image generic ii linux-image-5.0.0-37-generic 5.0.0-37.40 amd64 Signed kernel image generic ii linux-image-5.3.0-24-generic 5.3.0-24.26 amd64 Signed kernel image generic ii linux-image-5.3.0-26-generic 5.3.0-26.28 amd64 Signed kernel image generic ii linux-image-generic 5.3.0.26.30 amd64 Generic Linux kernel image rc linux-modules-4.15.0-72-generic 4.15.0-72.81 amd64 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP rc linux-modules-4.4.0-170-generic 4.4.0-170.199 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-modules-5.0.0-37-generic 5.0.0-37.40 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP ii linux-modules-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-modules-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP rc linux-modules-extra-4.15.0-72-generic 4.15.0-72.81 amd64 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP rc linux-modules-extra-4.4.0-170-generic 4.4.0-170.199 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-modules-extra-5.0.0-37-generic 5.0.0-37.40 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP ii linux-modules-extra-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-modules-extra-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-signed-generic 5.3.0.26.30 amd64 Complete Signed Generic Linux kernel and headers (dummy transitional package) ii rsyslog 8.1901.0-1ubuntu4 amd64 reliable system and kernel logging daemon
sudo apt-get --purge autoremove を打つだけです。
root@dell /h/matsu# sudo apt-get --purge autoremove Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: linux-image-5.0.0-37-generic* linux-modules-5.0.0-37-generic* linux-modules-extra-5.0.0-37-generic* 0 upgraded, 0 newly installed, 3 to remove and 0 not upgraded. After this operation, 253 MB disk space will be freed. Do you want to continue? [Y/n] y (Reading database ... 126511 files and directories currently installed.) Removing linux-modules-extra-5.0.0-37-generic (5.0.0-37.40) ... Removing linux-image-5.0.0-37-generic (5.0.0-37.40) ... /etc/kernel/postrm.d/initramfs-tools: update-initramfs: Deleting /boot/initrd.img-5.0.0-37-generic /etc/kernel/postrm.d/x-grub-legacy-ec2: Searching for GRUB installation directory ... found: /boot/grub Searching for default file ... found: /boot/grub/default Testing for an existing GRUB menu.lst file ... found: /boot/grub/menu.lst Searching for splash image ... none found, skipping ... Found kernel: /vmlinuz-5.3.0-26-generic Found kernel: /vmlinuz-5.3.0-24-generic Found kernel: /vmlinuz-5.0.0-37-generic Replacing config file /run/grub/menu.lst with new version Found kernel: /vmlinuz-5.3.0-26-generic Found kernel: /vmlinuz-5.3.0-24-generic Replacing config file /run/grub/menu.lst with new version Updating /boot/grub/menu.lst ... done /etc/kernel/postrm.d/zz-update-grub: Sourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/init-select.cfg' Generating grub configuration file ... Found linux image: /boot/vmlinuz-5.3.0-26-generic Found initrd image: /boot/initrd.img-5.3.0-26-generic Found linux image: /boot/vmlinuz-5.3.0-24-generic Found initrd image: /boot/initrd.img-5.3.0-24-generic done Removing linux-modules-5.0.0-37-generic (5.0.0-37.40) ... (Reading database ... 120073 files and directories currently installed.) Purging configuration files for linux-modules-5.0.0-37-generic (5.0.0-37.40) ... Purging configuration files for linux-modules-extra-5.0.0-37-generic (5.0.0-37.40) ... dpkg: warning: while removing linux-modules-extra-5.0.0-37-generic, directory '/lib/modules/5.0.0-37-generic/kernel/drivers/net/wireless' not empty so not removed Purging configuration files for linux-image-5.0.0-37-generic (5.0.0-37.40) ... rmdir: failed to remove '/lib/modules/5.0.0-37-generic': Directory not empty
古いKernelが消えました。
root@dell /h/matsu# dpkg -l |grep kernel ii kmod 26-1ubuntu1 amd64 tools for managing Linux kernel modules ii libaio1:amd64 0.3.112-5 amd64 Linux kernel AIO access library - shared library ii libdrm-amdgpu1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to amdgpu-specific kernel DRM services -- runtime ii libdrm-common 2.4.99-1ubuntu1 all Userspace interface to kernel DRM services -- common files ii libdrm-intel1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to intel-specific kernel DRM services -- runtime ii libdrm-nouveau2:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to nouveau-specific kernel DRM services -- runtime ii libdrm-radeon1:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to radeon-specific kernel DRM services -- runtime ii libdrm2:amd64 2.4.99-1ubuntu1 amd64 Userspace interface to kernel DRM services -- runtime ii linux-firmware 1.183.3 all Firmware for Linux kernel drivers ii linux-generic 5.3.0.26.30 amd64 Complete Generic Linux kernel and headers ii linux-headers-5.3.0-24 5.3.0-24.26 all Header files related to Linux kernel version 5.3.0 ii linux-headers-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel headers for version 5.3.0 on 64 bit x86 SMP ii linux-headers-5.3.0-26 5.3.0-26.28 all Header files related to Linux kernel version 5.3.0 ii linux-headers-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel headers for version 5.3.0 on 64 bit x86 SMP ii linux-headers-generic 5.3.0.26.30 amd64 Generic Linux kernel headers rc linux-image-4.15.0-72-generic 4.15.0-72.81 amd64 Signed kernel image generic rc linux-image-4.4.0-170-generic 4.4.0-170.199 amd64 Signed kernel image generic ii linux-image-5.3.0-24-generic 5.3.0-24.26 amd64 Signed kernel image generic ii linux-image-5.3.0-26-generic 5.3.0-26.28 amd64 Signed kernel image generic ii linux-image-generic 5.3.0.26.30 amd64 Generic Linux kernel image rc linux-modules-4.15.0-72-generic 4.15.0-72.81 amd64 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP rc linux-modules-4.4.0-170-generic 4.4.0-170.199 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-modules-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-modules-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP rc linux-modules-extra-4.15.0-72-generic 4.15.0-72.81 amd64 Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP rc linux-modules-extra-4.4.0-170-generic 4.4.0-170.199 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP ii linux-modules-extra-5.3.0-24-generic 5.3.0-24.26 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-modules-extra-5.3.0-26-generic 5.3.0-26.28 amd64 Linux kernel extra modules for version 5.3.0 on 64 bit x86 SMP ii linux-signed-generic 5.3.0.26.30 amd64 Complete Signed Generic Linux kernel and headers (dummy transitional package) ii rsyslog 8.1901.0-1ubuntu4 amd64 reliable system and kernel logging daemon root@dell /h/matsu# ls /boot/ System.map-5.3.0-24-generic config-5.3.0-24-generic efi/ initrd.img-5.3.0-24-generic lost+found/ vmlinuz-5.3.0-26-generic System.map-5.3.0-26-generic config-5.3.0-26-generic grub/ initrd.img-5.3.0-26-generic vmlinuz-5.3.0-24-generic root@dell /h/matsu#
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