CentOS - Mar 2021 - CentOS-7-x86_64-dvd-2009.iso is too big for DVD blanks

On Wed, Mar 17, 2021 at 11:42:40PM -0500, Robert G. (Doc) Savage via CentOS
wrote:
> 
> I'm sure it would, but I thought I made it clear that DL or BluRay have
> never been options in this case. I'm disappointed that the DVD iso was
> released without any release notes advising it was oversized
The size issue with single-layer media has been a known issue since the
CentOS-6 days and the release notes very much do mention it, or at least
they did at one point.

It's not realistic to expect server-class machines not to be able to
boot from dual-layer or USB media in 2021.






							John
-- 
Certitude is not the test of certainty.  We have been
cocksure of many things that were not so.

-- Oliver Wendell Holmes, Jr. (1841-1935), American jurist and Supreme
   Court Justice, "Natural Law", 32 Harvard Law Review 40, 41 (1918)

At Thu, 18 Mar 2021 00:24:51 -0500 CentOS mailing list <centos at
centos.org> wrote:
> 
> On Wed, Mar 17, 2021 at 11:42:40PM -0500, Robert G. (Doc) Savage via CentOS
wrote:
> > 
> > I'm sure it would, but I thought I made it clear that DL or BluRay
have
> > never been options in this case. I'm disappointed that the DVD iso
was
> > released without any release notes advising it was oversized
> 
> The size issue with single-layer media has been a known issue since the
> CentOS-6 days and the release notes very much do mention it, or at least
> they did at one point.
> 
> It's not realistic to expect server-class machines not to be able to
> boot from dual-layer or USB media in 2021.
Or really any "PC".  My 2009 vintage desktop "PC"
motherboard can boot from
USB.  It has the original BIOS.
> 
> 
> 
> 
> 
> 
> 							John
-- 
Robert Heller             -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software        -- Custom Software Services
http://www.deepsoft.com/  -- Linux Administration Services
heller at deepsoft.com       -- Webhosting Services

All of this could be avoided with a simple external disk reader like this:
https://www.amazon.com/Portable-External-Optical-Touch-Screen-Recorder/dp/B084WS3DHR/ref=sr_1_8?dchild=1&gclid=EAIaIQobChMIzNfR3PW57wIVkb3ACh0kqwzLEAAYASAAEgJQvPD_BwE&hvadid=177198149510&hvdev=c&hvlocphy=9019301&hvnetw=g&hvqmt=e&hvrand=1400606177523862771&hvtargid=kwd-10430955625&hydadcr=18062_9813221&keywords=external+dual-layer+dvd+burner&qid=1616073225&s=electronics&sr=1-8

On 3/18/2021 12:24 AM, John R. Dennison wrote:
> On Wed, Mar 17, 2021 at 11:42:40PM -0500, Robert G. (Doc) Savage via CentOS
wrote:
>> I'm sure it would, but I thought I made it clear that DL or BluRay
have
>> never been options in this case. I'm disappointed that the DVD iso
was
>> released without any release notes advising it was oversized
> The size issue with single-layer media has been a known issue since the
> CentOS-6 days and the release notes very much do mention it, or at least
> they did at one point.
>
> It's not realistic to expect server-class machines not to be able to
> boot from dual-layer or USB media in 2021.
>
>
>
>
>
>
> 							John
-- 
Christopher Wensink
IS Administrator
Five Star Plastics, Inc
1339 Continental Drive
Eau Claire, WI 54701
Office:  715-831-1682
Mobile:  715-563-3112
Fax:  715-831-6075
cwensink at five-star-plastics.com
www.five-star-plastics.com

On 3/18/21 1:24 AM, John R. Dennison wrote:
> It's not realistic to expect server-class machines not to be able to
> boot from dual-layer or USB media in 2021.
There are environments where USB or other writeable media are not 
allowed on premises.

While all DVD-ROM drives are supposed to read DL media, in practice the 
compatibility has not proven to be 100%.