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 
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> Today's Topics:
>    1. Re: SOLVED Re: Realtek 8111/8168/8411 Blues - cannot get
>       dhcpcd address (link UP) (LoneVVolf)
>    2. Re: SOLVED Re: Realtek 8111/8168/8411 Blues - cannot get
>       dhcpcd address (link UP) (David C. Rankin)
>    3. LTS Kernels (bildermejl76@gmail.com)
>    4. Re: LTS Kernels (Iru Cai)
>    5. Re: LTS Kernels (Ralf Mardorf)
>    6. Re: LTS Kernels (LoneVVolf)
>    7. Re: LTS Kernels (Karol Blazewicz)
> ----------------------------------------------------------------------
> Message: 1
> Date: Fri, 21 Aug 2015 15:10:55 +0200
> From: LoneVVolf 
> 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" 
> To: General Discussion about Arch Linux 
> 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:
> 
> IOMMU Controller
> Enables or disables AMD IOMMU support. (Default: Disabled)
> 
>    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 
> To: General Discussion about Arch Linux 
> Subject: Re: [arch-general] LTS Kernels
> Message-ID:
> 	
> Content-Type: text/plain; charset=UTF-8
> On Sat, Aug 22, 2015 at 4:30 PM,  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 
> 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 
> 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 
> To: General Discussion about Arch Linux 
> Subject: Re: [arch-general] LTS Kernels
> Message-ID:
> 	
> Content-Type: text/plain; charset=UTF-8
> On Sat, Aug 22, 2015 at 10:30 AM,   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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