CentOS - Dec 2015 - 7.2 kernel panic on boot

On Thu, December 3, 2015 14:50, m.roth at 5-cent.us
wrote:
> Valeri Galtsev wrote:
. . .
>> That is my main complaint about parallelized boot. My brain is
>> only capable to deal with serial sequence of events, and which
>> next event is deterministically predictable from previous. As
>> with fatal things like kernel panic, it is the previous before
>> the fatalstep is the one that you still can see...
>>
>> It there some way to tell systemd kick in components serially?
>>
>> Severs aside (you can not have everything), this (CentOS 7) is a
>> great system for laptops, the best I saw so far. Like machintosh.
>> Only better.
>
> For laptops, great. For anything else, not so much. For example,
> it's supposed to be an *ENTERPRISE* o/s... why does it
> automatically, without ever asking, install anything wifi? I'm
> still trying to figure out how to tell a *wired* CentOS 7
> workstation to stop even thinking about wifi or wimax, and stop
> cluttering the logs with debugging garbage.
>
The short answer:  Because RHEL is based on Fedora development.

The long answer:  Because RH believes/believed that the laptop
environment is/was a key part of its growth strategy.  The recent
phenomenon of the widespread adoption of smart phones and tablets in
place of laptops may bring that into question now, but the move to
laptops was a deliberate business choice in my opinion.

It remains to be seen whether or not RH can have its cake and eat it
too.  Sysadmins tend to be rather prickly people when it comes to
people and things that appear to waste their time.  It seems to me a
strategy of dubious worth aggravating ones installed based chasing a
chimera.

However that may be, the world moves on and we perforce move with it
or are left behind.

-- 
***          e-Mail is NOT a SECURE channel          ***
        Do NOT transmit sensitive data via e-Mail
James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3

On Fri, Dec 04, 2015 at 09:03:50AM -0500, James B. Byrne
wrote:
> On Thu, Dec 03, 2015 at 02:50:38PM -0500, m.roth at 5-cent.us wrote:
> > For laptops, great. For anything else, not so much. For example,
> > it's supposed to be an *ENTERPRISE* o/s... why does it
> > automatically, without ever asking, install anything wifi? I'm
[...]
> The short answer:  Because RHEL is based on Fedora development.

This is roughly true, although "downstream" RHEL makes its own
decisions about many things. If you (Mark, or anyone else) would like
to make this different in the future, getting involved with Fedora
Server is a good way to do so.


-- 
Matthew Miller
<mattdm at fedoraproject.org>
Fedora Project Leader

Matthew Miller wrote:
> On Fri, Dec 04, 2015 at 09:03:50AM -0500, James B. Byrne wrote:
>> On Thu, Dec 03, 2015 at 02:50:38PM -0500, m.roth at 5-cent.us wrote:
>> > For laptops, great. For anything else, not so much. For example,
>> > it's supposed to be an *ENTERPRISE* o/s... why does it
>> > automatically, without ever asking, install anything wifi? I'm
> [...]
>> The short answer:  Because RHEL is based on Fedora development.
>
> This is roughly true, although "downstream" RHEL makes its own
> decisions about many things. If you (Mark, or anyone else) would like
> to make this different in the future, getting involved with Fedora
> Server is a good way to do so.
1. Ignoring the several hundred log, etc, emails I deal with at work
      every day, I'm currently on at least 5 mailing lists, including
      this one, each ranging in business from 10-30 emails/day.
2. I work full time as a sysadmin, dealing with over 178 workstations,
      servers, and clusters.
3. I actually have a life outside of computers.
4. I don't notice any response to the huge and vehement reaction to systemd.

Given all that, how much more of my life should I spend on yet *another*
busy list, esp. when I do *not* want to install fedora, and debug an o/s
at home?

       mark "had to come in an hour early to bring up servers
               in the datacenter due to power work over the weekend,
               so, yes, I *am* a bit testy"

Matthew Miller wrote:
> On Fri, Dec 04, 2015 at 09:03:50AM -0500, James B. Byrne wrote:
>> On Thu, Dec 03, 2015 at 02:50:38PM -0500, m.roth at 5-cent.us wrote:
>> > For laptops, great. For anything else, not so much. For example,
>> > it's supposed to be an *ENTERPRISE* o/s... why does it
>> > automatically, without ever asking, install anything wifi? I'm
> [...]
>> The short answer:  Because RHEL is based on Fedora development.
>
> This is roughly true, although "downstream" RHEL makes its own
> decisions about many things. If you (Mark, or anyone else) would like
> to make this different in the future, getting involved with Fedora
> Server is a good way to do so.
Oh, one more thing: as I posted (by request) on Bruce Schneir's blog last
week, one thing that has *always* really annoyed me is when architects or
developers DON'T TALK TO END USERS, but some manager who *knows* what
needs to happen designs the whole thing. Too many times I've seen the end
result: end users, the mass of folks who have to use it, range from
dislike to loathing, and avoid using something that *should* have made
their life easier at work, instead making it *much* harder, until they
have no choice.

I've been pleased that the folks on this list have been solicited several
times in the last six months for our opinions.

       mark