Up2date -uf changes default kernel in grub config

I just built a new Oracle Linux 5.7 server and I configured it to boot into the Red Hat compatible kernel by default. After running up2date -uf to update all of the packages including the kernels, the grub config is automatically modified to boot back into the oracle uek kernel (default value gets switched back to 0). Is there any way to prevent the system update from changing the default kernel in the grub config?

So that fixed it I guess.
Before upgrade:
# UDPATEDEFAULT specifies if new-kernel-pkg should make
# new kernels the default
UPDATEDEFAULT=no
# DEFAULTKERNEL specifies the default kernel package type
DEFAULTKERNEL=kernel
After upgrade:
# UDPATEDEFAULT specifies if new-kernel-pkg should make
# new kernels the default
UPDATEDEFAULT=no
# DEFAULTKERNEL specifies the default kernel package type
DEFAULTKERNEL=kernel-uek
Also, the default value in grub.conf stays at 1 as opposed to being changed to 0. I don't understand this behavior though. Shouldn't the upgrade create an /etc/sysconfig/kernel.rpmsave or kernel.rpmnew file as opposed to just overwriting parts of the config file?
Edited by: user8697493 on Oct 6, 2011 8:04 AM

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Change default kernel config

I'm unable to boot with the default kernel, since "BIOS Enhanced Disk Drive calls determine boot disk" is enabled.
One may wonder why is it enabled in default distro kernel anyway. Here a note
from kernel config:
"This option is experimental and is known to fail to boot on some obscure configurations. Most disk controller BIOS vendors do not yet implement this feature."
Maybe its just me, but I really dont consider my configuration as obscure :-)
It would be great if this was removed from the default kernel unless there is a reason for it to be there?
The problem occur when I have disks attached to the one of Promise controllers.
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00:00.0 Host bridge: Intel Corporation 82Q963/Q965 Memory Controller Hub (rev 02)
00:01.0 PCI bridge: Intel Corporation 82Q963/Q965 PCI Express Root Port (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82Q963/Q965 Integrated Graphics Controller (rev 02)
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00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 02)
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00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 02)
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bugs.archlinux.org to make sure its fixed.
the acpi video module is reasonably new and it can be compiled as a module iirc, so it shouldnt be any harm to have it compiled as such.
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[SOLVED]Searching for a way to change default kernel installation path

Hi,
( first of all SRY for my english )
I've set up a multi boot system onto an USB Stick - something like a personalized Recovery System. Currently I have a 32 and a 64bit version of Arch on it, but may I'll extend it with other distros...
OK, so far everything is running pretty fine, but every time I do a kernel upgrade I'm running into the following issue:
Since I'm using a shared boot partition where my GRUB and all of my Kernels (i686, c86_64) lie on. - I'm using the shared partition for technical reasons (MSDOS part table, max 4 primary partitions ).
I've organized my kernels in different directorys (e.g. i686, x86_64) and it is no problem to tell GRUB about this, but every time I do a Kernel upgrade the kernel is installed to its default location on /boot/vmlinuz-linux.
That has two side effects:
- I have to move the kernel "by hand" to the right directory
- I've changed the Kernel-Path in mkinitcpio.conf to /boot/xxx/vmlinuz-linux therefore mkinitcpio is not able to create the initramfs because it does not know about the right path
My current solution is, that I will move the kernel to the appropiate directory and execute mkinitcpio afterwards ... but sometimes it happens that I forget about that and my system is not able to start up again...
I've thought bout possible solutions via symlinks, mountbinds, shutdown scripts, etc. but I wasn't able to find a proper solution for that problems.
So far my (long) story. My specific question is, is it possible to change the default installation path of the kernel package? If so that will solve my problem in a elegant way .
Best regards,
gnux
PS.: I was thinking about something like a config e.g. in /etc/kernelpath ... whatever
Last edited by gnux83 (2013-07-04 11:17:52)

karol wrote:https://bbs.archlinux.org/viewtopic.php?id=164276
Thx, I'll go through that

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many thanks in advance
Andrea
EDIT: of course, if I change kernel command line by hand (:s/SB0/SB1) it works as expected, but it's not I'm looking for, being grub.cfg an automatically generated file.
Last edited by Aklo (2015-04-28 11:11:56)

I don't use GRUB anymore, but I don't recall it requiring a specified subvolume to boot, however if you've installed to a specific subvolume (SB0 in your case), then you will need to to tell GRUB where to look more specifically than just the device and partition (/dev/sda2).
What might accomplish what you're asking for is to set up seaparate boot entries for the respective subvolumes / installation variants. Basically manually add another "menuentry" in /boot/grub/grub.cfg and change the subvolume specified:
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menuentry "Arch Linux - SB1" {
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/dev/sda3 btrfs / *"menuentry" in /boot/grub/grub.cfg > title "Arch Linux - SB1"
/dev/sda4 btrfs /home
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Hi,
I have a Samsung X60 laptop that freezes when the acpi video module is loaded. The default Arch kernel config (and the derived suspend2 one) includes as built-in some of the acpi code (including the video bit). I'm interested to learn why they are included as built in, and if there is a way to selectively skip the acpi video built-in bit of code? (more selectively than acpi=off as a kernel parameter). Would it be reasonable to request a change to the default kernel config?
cheers

bugs.archlinux.org to make sure its fixed.
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Ive just gotten the 0.7 beta working on my new server.
I had problems when booting into the system, the kernel saying it couldnt mount /dev/discs/disc0/part5 (my / partition)
ive forgotten the exact error, but it was at the VFS mount point.
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admittedly it has this comment
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edited to `codify' the menu.1st comment

Well, if I were to venture a guess, it's because your kernel doesn't have devfs built in at all. So the kernel has no idea what /dev/discs/... is supposed to point to.
yep, thats what im saying.
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seeing as 0.7 comes udev ready, i didnt expect there to be any trouble with device naming conventions. It took me some hours to realise thats what the problem was.
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Last edited by paulb787 (2012-06-22 05:50:35)

1.
What i want to do is be able to pretty much just have the ability to add a module or compile somthing on top of the default linux kernel.
You would need linux-headers to do that like this (more or less):
cd your-src/kernel
make SYSSRC=/lib/modules/${current-kernel-version}/build module
If you want to customize your kernel further, change its config options, modify default features, etc., then you need to recompile it entirely as described in the Wiki.
2.
is that just comenting "provides" , "conflicts" and "replaces"
Yes. You also need to create a custom linux-${your-custom-kernel-name}.preset in order to generate initramfs. Of course, you can as well use the default name and change the settings in the config file (via menuconfig, nconfig or whatever tool you choose the achieve this). Then nothing has to be changed as all the add-ons will follow the naming convention reserved for the default kernel.
3.
Also when i select or uncomment menuconfig and lets say not change anything at all is that going to be the same configuration as it would be if i were to install the kernel with pacman?
Yes.
4.
So i can say add framebuffer support or something like that and compile and install and have the exact same kernel now plus FB support.
Basically yes, though I'm wondering for which video board you need extra FB support...
Last edited by bohoomil (2012-06-20 00:41:15)

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Up2date -uf changes default kernel in grub config

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