New subject: [arch-general] arch-general Digest, Vol 130, Issue 19

22 Aug 2015

      Thanks for the answers! I think those explanations and links will help me get through the process. David
–
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On Sat, Aug 22, 2015 at 2:00 PM, null arch-general-request@archlinux.org
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Today's Topics:

Re: SOLVED Re: Realtek 8111/8168/8411 Blues - cannot get
dhcpcd address (link UP) (LoneVVolf)
Re: SOLVED Re: Realtek 8111/8168/8411 Blues - cannot get
dhcpcd address (link UP) (David C. Rankin)
LTS Kernels (bildermejl76@gmail.com)
Re: LTS Kernels (Iru Cai)
Re: LTS Kernels (Ralf Mardorf)
Re: LTS Kernels (LoneVVolf)
Re: LTS Kernels (Karol Blazewicz)

Message: 1
Date: Fri, 21 Aug 2015 15:10:55 +0200
From: LoneVVolf lonewolf@xs4all.nl
To: arch-general@archlinux.org
Subject: Re: [arch-general] SOLVED Re: Realtek 8111/8168/8411 Blues -
   cannot get dhcpcd address (link UP)
Message-ID: 55D7235F.1010302@xs4all.nl
Content-Type: text/plain; charset=utf-8; format=flowed
On 21-08-15 04:58, David C. Rankin wrote:
...
On 08/20/2015 09:34 PM, David C. Rankin wrote:
...
$#%#@%#$%... You have to enable IOMMU in the BIOS before the NIC will 
work! I stumbled across this obscure little tidbit on the fedora forum:
http://forums.fedoraforum.org/showthread.php?t=295616
It triggers some nasty AMD I10 Page Faults/xhci messages during boot 
of the 201508 install media, but the network comes right up, dhcp 
works, no more lost packets, etc.
I wonder if this is related to it corrupting my USB drives I plug into 
it? Drives work the first time, sync, then umount. Next time you plug 
them in, filesystem is gone?
Oh well, at least I have a network now. I'll add it to the wiki.
Blame Gigabyte, the only reason to disable IOMMU is if you run a 32-bit OS .
On all x86_64 OSes running with IOMMU disabled will degrade graphics 
performance A LOT.
As you found , disabling IOMMU also affects other hardware badly.
TL;DR :
64-bit OS >>> ENABLE IOMMU
Some links :
https://en.wikipedia.org/wiki/IOMMU
http://developer.amd.com/community/blog/2008/09/01/iommu/
Lone_Wolf

Message: 2
Date: Fri, 21 Aug 2015 22:39:53 -0500
From: "David C. Rankin" drankinatty@suddenlinkmail.com
To: General Discussion about Arch Linux arch-general@archlinux.org
Subject: Re: [arch-general] SOLVED Re: Realtek 8111/8168/8411 Blues -
   cannot get dhcpcd address (link UP)
Message-ID: 55D7EF09.4010506@suddenlinkmail.com
Content-Type: text/plain; charset=UTF-8; format=flowed
On 08/21/2015 08:10 AM, LoneVVolf wrote:
...
Blame Gigabyte, the only reason to disable IOMMU is if you run a 32-bit OS .
On all x86_64 OSes running with IOMMU disabled will degrade graphics performance
A LOT.
As you found , disabling IOMMU also affects other hardware badly.
TL;DR :
64-bit OS >>> ENABLE IOMMU
Some links :
https://en.wikipedia.org/wiki/IOMMU
http://developer.amd.com/community/blog/2008/09/01/iommu/
Lone_Wolf
Thanks, and yes, so I found out. It would really be helpful if motherboard 
manuals were worth a crap anymore, but those days are long gone. The ONLY 
description concerning IOMMU in the entire manual was:
<quote (page 49)>
IOMMU Controller
Enables or disables AMD IOMMU support. (Default: Disabled)
</quote>
   A lot of good that does to guide someone in its use. :p
-- 
David C. Rankin, J.D.,P.E.
------------------------------
Message: 3
Date: Sat, 22 Aug 2015 01:30:56 -0700 (PDT)
From: bildermejl76@gmail.com
To: arch-general@archlinux.org
Subject: [arch-general] LTS Kernels
Message-ID: <1440232255845.6c8fa0fa@Nodemailer>
Content-Type: text/plain; charset=utf-8
Hello,?
I have been thinking about instslling an LTS kernel, but I don't have the skills to make complete sense of the wiki pages about grub and kernel installation.
I have 4.1.15 installed now and not so many GUI programs installed beside Libre Office, web browser... mostly CLI utilities.
But I wonder if I can install an LTS kernel in an already existing installation as a fallback?
The wiki sounds fairly straight forward, but I get lost where it says "install kernel" without saying how, and to "edit the grub config file" without an explanation, and to "generate the main configuration file".
Not sure whether I am getting in way over my head or if it is actually quite simple. That's what I need to know.
Thanks,
David
?
Skickat fr?n Mailbox
------------------------------
Message: 4
Date: Sat, 22 Aug 2015 16:54:56 +0800
From: Iru Cai <mytbk920423@gmail.com>
To: General Discussion about Arch Linux <arch-general@archlinux.org>
Subject: Re: [arch-general] LTS Kernels
Message-ID:
   <CALWv5jRcpCjyOLtWD2R7sgrFm0D6MJJTEUmrcSF1Hitcpd=_Hg@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
On Sat, Aug 22, 2015 at 4:30 PM, <bildermejl76@gmail.com> wrote:
> Hello,
>
> I have been thinking about instslling an LTS kernel, but I don't have the
> skills to make complete sense of the wiki pages about grub and kernel
> installation.
>
> I have 4.1.15 installed now and not so many GUI programs installed beside
> Libre Office, web browser... mostly CLI utilities.
>
>
> But I wonder if I can install an LTS kernel in an already existing
> installation as a fallback?
>
> You can install an LTS kernel along with an existing kernel.
>
> The wiki sounds fairly straight forward, but I get lost where it says
> "install kernel" without saying how, and to "edit the grub config file"
> without an explanation, and to "generate the main configuration file".
>
> install kernel: pacman -S linux-lts
edit grub config file: grub-mkconfig -o /boot/grub/grub.cfg
>
> Not sure whether I am getting in way over my head or if it is actually
> quite simple. That's what I need to know.
>
>
> Thanks,
> David
>
>
>
> ?
> Skickat fr?n Mailbox
>
------------------------------
Message: 5
Date: Sat, 22 Aug 2015 11:00:27 +0200
From: Ralf Mardorf <ralf.mardorf@rocketmail.com>
To: arch-general@archlinux.org
Subject: Re: [arch-general] LTS Kernels
Message-ID: <20150822110027.359fdca4@archlinux>
Content-Type: text/plain; charset=US-ASCII
On Sat, 22 Aug 2015 01:30:56 -0700 (PDT), bildermejl76@gmail.com wrote:
>The wiki sounds fairly straight forward, but I get lost where it says
>"install kernel" without saying how
Really?
sudo pacman -Syu linux-lts
>and to "edit the grub config file" without an explanation, and to
>"generate the main configuration file".
sudo nano /boot/grub/grub.cfg
Then copy the entry from the "default" kernel and edit it to fit to the
LTS kernel. Just take a look at it and you'll see it's self-explaining.
However, AFAIK there are also update commands for GRUB, using some OS
prober thingy to generate an updated grub.cfg.
Did you take a look at the grub man page? Maybe installing the kernel
automatically updates grub.cfg?
I'm using GRUB too, but it's not part of my Arch install, it's a
stand-alone GRUB and I anyway prefer to manually edit grub.cfg.
Regarding a FreeBSD install I decided to use GRUB2. Using another
bootloader doesn't harm, if you shouldn't really need GRUB.
------------------------------
Message: 6
Date: Sat, 22 Aug 2015 11:02:56 +0200
From: LoneVVolf <lonewolf@xs4all.nl>
To: arch-general@archlinux.org
Subject: Re: [arch-general] LTS Kernels
Message-ID: <55D83AC0.7050407@xs4all.nl>
Content-Type: text/plain; charset=utf-8; format=flowed
On 22-08-15 10:30, bildermejl76@gmail.com wrote:
> But I wonder if I can install an LTS kernel in an already existing installation as a fallback?
>
Yes, that's not very hard and a good idea.
> The wiki sounds fairly straight forward, but I get lost where it says "install kernel" without saying how, and to "edit the grub config file" without an explanation, and to "generate the main configuration file".
>
>
> Not sure whether I am getting in way over my head or if it is actually quite simple. That's what I need to know.
If you use kernel modules that are not part of the stock kernel (like 
nvidia , catalyst, vhba-modules ) additonal steps are needed.
For now i'll assume you don't have such modules.
- Almost every time an arch wiki page states "install program" , it 
means one of 2 things :
install with pacman
install from AUR with makepkg
The lts kernel is in official repos, so you can install it with pacman.
- to be able to boot the lts-kernel , you have to add an entry to your 
bootloader config for it.
Grub stores that info in grub.cfg , grub page lists where it can be found.
As Root :
copy grub.cfg to something like grub.cfg.original
open the file with your fav tekst editor.
Copy the entry for arch stock kernel to a new entry and change what is 
needed to have that boot the lts-kernel instead of the stock kernel.
Reboot and test if it works.
LW
------------------------------
Message: 7
Date: Sat, 22 Aug 2015 13:55:52 +0200
From: Karol Blazewicz <karol.blazewicz@gmail.com>
To: General Discussion about Arch Linux <arch-general@archlinux.org>
Subject: Re: [arch-general] LTS Kernels
Message-ID:
   <CAO0v=MOsj7N63WBPqkojt4LLYZ8-SmwQA_cbmJuKX8yataUL=w@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
On Sat, Aug 22, 2015 at 10:30 AM,  <bildermejl76@gmail.com> wrote:
> The wiki sounds fairly straight forward, but I get lost where it says "install kernel" without saying how, and to "edit the grub config file" without an explanation, and to "generate the main configuration file".
What wiki article?
https://wiki.archlinux.org/index.php/Enhance_system_stability#Install_the_linux-lts_package
provides links to e.g.
https://wiki.archlinux.org/index.php/GRUB#Generate_the_main_configuration_file
What about https://wiki.archlinux.org/index.php/Kernels ?
------------------------------
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Re: [arch-general] arch-general Digest, Vol 130, Issue 19