Arch Linux

saronno

Member

Registered: 2009-10-02

Posts: 218

[Solved] re-installing 2.6.x branch keeping 3.1.x

It's a bit odd what I'm asking.

At the moment, my system has the 3.1.x branch installed and everything is ok
(just some trouble with tomoyo since the last update
but it doesn't matter now).
What I need is to have a 2.6.x kernel to use from time to time without messing up with
the 3.1.x brach.
This is because I need to install an old kqemu kernel module
to work with an old 0.9.1 qemu. The reason is that this qemu version
is a modified version with hooks and functions very useful to make
binary analisys (temu/bitblaze project).
This qemu version works fine but it's extremely slow
without the kqemu module installed, and unfortunatly
this module support kernels up to 2.6.x branch.

So, again, how could I install a 2.6.x kernel without
messing up with my current 3.1.x branch?

Last edited by saronno (2011-12-16 16:27:53)

mcmillan

Member

Registered: 2006-04-06

Posts: 737

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

There's the kernel26-lts package

saronno

Member

Registered: 2009-10-02

Posts: 218

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

what about ext4?
My partitions are ext4. However I have a ext2 /boot partition.

could a "pacman -Sy kernel26-lts" cause any trouble with my other 3.x kernel?

Last edited by saronno (2011-11-25 00:45:59)

graysky

Wiki Maintainer

From: :wq

Registered: 2008-12-01

Posts: 10,700

Website

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

The two can co-exist and kernel26-lts supports ext4.  It's 2.6.32.xx and from memory, 2.6.28 was the first with ext4 support.

---

CPU-optimized Linux-ck packages @ Repo-ck  • AUR packages • Zsh and other configs

saronno

Member

Registered: 2009-10-02

Posts: 218

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

thanks

Just a thing: eventually I could use also
alternative kernel package present in AUR, right?

They shouldn't interfere with my 3.1.x branch if I understand correctly.

Last edited by saronno (2011-11-25 01:47:01)

mcmillan

Member

Registered: 2006-04-06

Posts: 737

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

thanks

Just a thing: eventually I could use also
alternative kernel package present in AUR, right?

They shouldn't interfere with my 3.1.x branch if I understand correctly.

Yep those should work, assuming an AUR package isn't written poorly to create conflicts. I'm running off both the stock kernel and the ck kernel (though I use graysky's repo rather than compile my own from the AUR)

could a "pacman -Sy kernel26-lts" cause any trouble with my other 3.x kernel?

Somewhat off-topic, but don't do this for reasons unrelated to the package your installing. It will sync your repositories, but may lead to problems if it causes packages to be installed without proper updates for other packages.

saronno

Member

Registered: 2009-10-02

Posts: 218

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

Somewhat off-topic, but don't do this for reasons unrelated to the package your installing. It will sync your repositories, but may lead to problems if it causes packages to be installed without proper updates for other packages.

So it would be better to do a full system update and immediately after installing the kernel26-tls, right?

mcmillan

Member

Registered: 2006-04-06

Posts: 737

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

I probably should have been clearer, I was referring to using pacman -Sy [any package] when you install something. If you use the sync option you should update your system. This is one of the better explanations I've seen about the reasons. Just installing a package without syncing should be safe, since if you try to install something that got updated pacman won't be able to find it on the mirror.

saronno

Member

Registered: 2009-10-02

Posts: 218

Re: [Solved] re-installing 2.6.x branch keeping 3.1.x

I probably should have been clearer, I was referring to using pacman -Sy [any package] when you install something. If you use the sync option you should update your system. This is one of the better explanations I've seen about the reasons. Just installing a package without syncing should be safe, since if you try to install something that got updated pacman won't be able to find it on the mirror.

Ok, thanks.