I tried to install the latest kernel as following: $ sudo dpkg -i *.deb (Reading database ... 130671 files and directories currently installed.) Preparing to unpack linux-headers-4.7.0-040700rc1_4.7.0-040700rc1.201605291331_all.deb ... Unpacking linux-headers-4.7.0-040700rc1 (4.7.0-040700rc1.201605291331) over (4.7.0-040700rc1.201605291331) ... Preparing to unpack linux-headers-4.7.0-040700rc1-generic_4.7.0-040700rc1.201605291331_amd64.deb ... Unpacking linux-headers-4.7.0-040700rc1-generic (4.7.0-040700rc1.201605291331) over (4.7.0-040700rc1.201605291331) ... Preparing to unpack linux-image-4.7.0-040700rc1-generic_4.7.0-040700rc1.201605291331_amd64.deb ... Done. Unpacking linux-image-4.7.0-040700rc1-generic (4.7.0-040700rc1.201605291331) over (4.7.0-040700rc1.201605291331) ... Examining /etc/kernel/postrm.d . run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic Setting up linux-headers-4.7.0-040700rc1 (4.7.0-040700rc1.201605291331) ... Setting up linux-headers-4.7.0-040700rc1-generic (4.7.0-040700rc1.201605291331) ... Setting up linux-image-4.7.0-040700rc1-generic (4.7.0-040700rc1.201605291331) ... Running depmod. update-initramfs: deferring update (hook will be called later) Not updating initrd symbolic links since we are being updated/reinstalled (4.7.0-040700rc1.201605291331 was configured last, according to dpkg) Not updating image symbolic links since we are being updated/reinstalled (4.7.0-040700rc1.201605291331 was configured last, according to dpkg) Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic update-initramfs: Generating /boot/initrd.img-4.7.0-040700rc1-generic run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic run-parts: executing /etc/kernel/postinst.d/update-notifier 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.7.0-040700rc1-generic /boot/vmlinuz-4.7.0-040700rc1-generic Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.7.0-040700rc1-generic Found initrd image: /boot/initrd.img-4.7.0-040700rc1-generic Found linux image: /boot/vmlinuz-4.4.11-040411-generic Found initrd image: /boot/initrd.img-4.4.11-040411-generic Found linux image: /boot/vmlinuz-4.4.0-21-generic Found initrd image: /boot/initrd.img-4.4.0-21-generic done
But my server couldn't boot up and it shows: BusyBox v1.22.1 (Ubuntu 1:1.22.0-15ubuntu1) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) I have to roll back to the 4.4.11 kernel. Please advice the next step. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1586838 Title: bcache causes a kernel bug when adding a new cache device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1586838/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
