[lfs-support] New Lfs 7.8 system with some boot up errors and a question on network

David Mehler dave.mehler at gmail.com
Sun Nov 8 17:24:28 PST 2015


Hello William and others,

"Does the chapter7 symlink page need an update either referencing the
freedesktop link or enter a bit in there about how udev will behave?"

William, I looked at the referenced page and thank you. That answered
a lot of questions. I would recommend that page be referenced.

Thanks.
Dave.


On 11/8/15, William Harrington <kb0iic at berzerkula.org> wrote:
> On Fri, 6 Nov 2015 16:16:03 -0500
> David Mehler <dave.mehler at gmail.com> wrote:
>
>> This next one goes with the network interface. I'd prefer my
>> interfaces to be named eth0, eth1, etc and to let Linux worry about
>> the driver needed, I like consistent interface names.
>>
>> [    3.930679] e1000 0000:02:01.0 eno16777736: renamed from eth0
>> [    3.938555] udevd[2664]: renamed network interface eth0 to eno16777736
>>
>> There was a section in the book on this, which I have done, this is is
>> indicating I missed something. Any ideas welcome.
>>
>> Thanks a lot.
>> Dave.
>
> Some more information:
> http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
>
> This isn't the first time I've shared the link about predictable network
> interface names.
>
> The LFS page discusses a bit of it:
> http://www.linuxfromscratch.org/lfs/view/stable/chapter07/symlinks.html
>
> Disable the assignment of fixed names, so that the unpredictable kernel
> names are used again. For this, simply mask udev's rule file for the default
> policy: ln -s /dev/null /etc/udev/rules.d/80-net-setup-link.rules (since
> v209: this file was called 80-net-name-slot.rules in release v197 through
> v208)
>
> Create your own manual naming scheme, for example by naming your interfaces
> "internet0", "dmz0" or "lan0". For that create your own udev rules file and
> set the NAME property for the devices. Make sure to order it before the
> default policy file, for example by naming it
> /etc/udev/rules.d/70-my-net-names.rules
>
> Alter the default policy file, for picking a different naming scheme, for
> example for naming all interface names after their MAC address by default:
> cp /usr/lib/udev/rules.d/80-net-setup-link.rules
> /etc/udev/rules.d/80-net-setup-link.rules, then edit the file there and
> change the lines as necessary.
>
> Pass the net.ifnames=0 on the kernel command line (since v199)
>
> Does the chapter7 symlink page need an update either referencing the
> freedesktop link or enter a bit in there about how udev will behave?
>
> Or perhaps have it in an introduction page for network setup?
>
> Sincerely,
>
> William Harrington
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