[CentOS] kickstart compat C7 -> C8

Valeri Galtsev galtsev at kicp.uchicago.edu
Wed May 8 21:47:58 UTC 2019



On 2019-05-08 15:05, Stephen John Smoogen wrote:
> On Wed, 8 May 2019 at 13:48, Valeri Galtsev <galtsev at kicp.uchicago.edu>
> wrote:
> 
>>
>>
>> On 2019-05-08 12:28, Stephen John Smoogen wrote:
>>> On Wed, 8 May 2019 at 13:24, mark <m.roth at 5-cent.us> wrote:
>>
>>>>
>>> Yep. Minimum for that is going to be about the same as your RESCUE. The
>>> other would just be to confirm that the sda has space and nothing still
>> on
>>> it which it was trying to work around.
>>>
>>
>> In CentOS releases 5 --> 6 --> 7
>>
>> the demand for /boot size doubles if not triples with each release...
>> Otherwise one day you may fill it up before number of kernels will be
>> such that kernel update will remove oldest kernel. And _we_ called
>> Windows 2000 "bloated pig" when it was released... Sigh.
>>
>>
> Software seems to grow to the maximum space it can occupy.

Of course, this is true. I do remember big upgrade: 40 MB hard drive 
replacing 20 MB one. Still, during the same decade an a half covering 
CentOS releases I mentioned, on my FreeBSD boxes /boot grew up less than 
twice, whereas on my CentOS boxes it grew up at least 5 times. I safely 
run CentOS 5 through its whole lifespan with /boot as small as 200MB. On 
CentOS 7 I make /boot 3 GB (maybe slight overkill, but boxes with 1 GB 
went into /boot size issue after several kernel updates). But what one 
can do: Linux kernel has a lot of stuff that, hmm..., one can probably 
live without, and what comes with Linux distributions covers widest 
variety of hardware it will run on ;-)

Valeri
PS Yes, I run and programmed for machines with 4 - 16 Kb of RAM, and now 
administer machine with almost 1 TB of RAM. Now you can pretty much 
pinpoint my age ;-)

> I think in 1989
> we were complaining about BSD not being able to fit on our VAX 750's boot
> drive anymore and we needed to put in a 40MB drive system instead. I expect
> by the 2040's we will be looking at petabyte drives and wondering how we
> can fit anything on it.
> 
> 
> 
> 
>> Valeri
>>
>>>
>>>
>>>>          mark
>>>>
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>>>>
>>>
>>>
>>
>> --
>> ++++++++++++++++++++++++++++++++++++++++
>> Valeri Galtsev
>> Sr System Administrator
>> Department of Astronomy and Astrophysics
>> Kavli Institute for Cosmological Physics
>> University of Chicago
>> Phone: 773-702-4247
>> ++++++++++++++++++++++++++++++++++++++++
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> https://lists.centos.org/mailman/listinfo/centos
>>
> 
> 

-- 
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++


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