I have a VPS, which used to be on Slicehost and now Rackspace and it’s running kernel 22.214.171.124-rscloud with Ubuntu 14.04.1 LTS. It seems I can’t update my packages without getting onto a more recent kernel.
I’ve been trying various kernels and they all halt at startup, with different error messages. My menu.lst clearly controls which kernel I boot and I can change the default, watch it fail, and the change it back to zero in rescue mode.
/boot/grub/menu.lst default 0 title Ubuntu 14.04.1 LTS, kernel 126.96.36.199-rscloud root (hd0,0) kernel /boot/vmlinuz-188.8.131.52-rscloud root=/dev/sda1 ro quiet splash console=xvc0 selinux=0 initrd /boot/initrd.img-184.108.40.206-rscloud title Ubuntu 14.04.1 LTS, kernel 3.16.0-77-generic root (hd0,0) kernel /boot/vmlinuz-3.16.0-77-generic root=/dev/sda1 ro quiet splash console=xvc0 selinux=0 initrd /boot/initrd.img-3.16.0-77-generic title Ubuntu 14.04.1 LTS, kernel 4.4.0-116-generic root (hd0,0) kernel /boot/vmlinuz-4.4.0-116-generic root=/dev/sda1 ro quiet splash console=xvc0 selinux=0 initrd /boot/initrd.img-4.4.0-116-generic
I’ve been playing with grub, grub2, pvgrub without success. I’ve had issues not finding the boot device (disable UUID) and problems with the realtime clock in the later kernels. I’d prefer not to build a new server from scratch as I have many services running well and various DNS services pointing to its IP.