Hi,My experience with kernel installs in a grub 2 environment is that I have to always manually run grub2-mkconfig and grub2-install as the kernel install wants to run Gruby to update the grub configuration and on my system, from Fedora 17 onwards, Gruby always fails with authorisation issues even though all O/S updates are run under sudo with full admin access. So my question would be, are you grub issues as a result of the kernel install running Gruby rather than grub2-mkconfig?
regards, Steve On 05/05/2014 08:39 PM, Patrick Dupre wrote:
----- Original Message ----- From: Chris Murphy Sent: 05/05/14 07:35 AM To: Community support for Fedora users Subject: Re: grub2 On May 4, 2014, at 4:33 PM, Patrick Dupre <pdu...@gmx.com> wrote:Hello, After the installation of a new kernel (typically during an update). There is a change of the file /boot/grub2/grub.cfg. However, the new menuentry created is not correct. The new one includes linux /vmlinuz-3.14.2-200.fc20.x86_64 root=/dev/mapper/VolGrpSys_DK1-root which wrong. I can change it manually. I cannot guess where the information is found! the set root='lvm/VolGrpSys_DK1-root' is correctThe first one looks correct, the second one doesn't. Can you either post the entire grub.cfg, or you can also edit an older entry and check what root= it uses. For any rootfs on LVM, I expect root=/dev/mapper/VG-LV. When updating the kernel, it calls grubby, which should just create a new entry based on a previous entry only updating the name of the kernel and initramfs accordingly. I haven't seen it change the root entry. The other thing you can do is create a new grub.cfg from scratch by using grub2-mkconfig -o /boot/grub2/grub.cfg This is the same command the installer used when Fedora was installed.Thank you for the information. When I run grub2-mkconfig -o /boot/grub2/grub.cfg.test the generated file is correct. I am not able to reproduce manually what happens during the 2 last kernal updates. I will check again after the next update. =========================================================================== Patrick DUPRÉ | | email: pdu...@gmx.com Laboratoire de Physico-Chimie de l'Atmosphère | | Université du Littoral-Côte d'Opale | | Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 189A, avenue Maurice Schumann | | 59140 Dunkerque, France ===========================================================================
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