On 15 March 2014 14:29, Larry Linder <[log in to unmask]> wrote:
> Thank you all for your assistance.
>
> Connie had right answer.
> In the grub boot loader all of the available Kernels are there and can be
> booted.  Top of the list was 6.4 .
> When we had a major power outage the system, shut down by the UPS, and  was
> manually rebooted and the orrig. 6.4 Kernel was loaded and no Ethernet -
> transmit.   According to "ifconfig" the Rd had a large number and the Tx had
> 0.
> On this system its hard to see as the boot happens very quickly and if you are
> not looking for it you miss it.
> In the "grub" boot loader all 6.4 , 6.4 elrepo, and 6.5 kernels were there.
> If you don't select "elrepo", it boots with 6.4.
> Rebooted using the "elrepo" kernel, solved the problem.
>
> Ethernet is now working.
>
> Next Question:
> How do I modify the boot loader to put the "elrepo" kernel first in the list?

Examine your /etc/grub.conf file.

You will observe that every kernel stanza begins with a "title" line.
Those kernel stanzas are numbered, starting from zero with the first
one nearest the beginning of the file. Note the number of the kernel
stanza that you wish to be the default boot.

Now edit the line which begins "default=" and ensure that line
references the relevant kernel stanza number.

Alan.