The EFI stub loader produces consistent boot errors when booting Trusty starting with version 3.13.0-101-generic. This bug can be reproduced in many ways (using efibootmgr, an EFI shell, rEFInd, etc.). One approach is: 1) Install an EFI shell on the computer and set it as the default boot option using efibootmgr. 2) Copy the kernel and initrd files from /boot to /boot/efi. 3) Rename the kernel file to use a .efi filename extension. 4) Reboot into the EFI shell. 5) Try to launch the kernel...| Launchpad
[Impact] Ubuntu provides the "lowlatency" kernel: a kernel optimized for applications that have special "low latency" requirements. Currently, this kernel does not include any specific UBUNTU SAUCE patches to improve the extra "low latency" requirements, but the only difference is a small subset of .config options. Almost all these options are now configurable either at boot-time or even at run-time, with the only exception of CONFIG_HZ (250 in the generic kernel vs 1000 in the lowlatency ...| Launchpad
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