Re: Can't burn a CentOS 7.9 DVD

Robert McBroom via users <users@xxxxxxxxxxxxxxxxxxxxxxx> · Sun, 14 Mar 2021 14:31:56 -0400



    On 3/13/21 1:19 PM, Robert G. (Doc)
      Savage via users wrote:

    
      On Sat, 2021-03-13 at 02:26 +0000, Anthony F McInerney wrote:
      
        
            On Fri, 12 Mar 2021 at
              22:49, Robert G. (Doc) Savage via users <users@xxxxxxxxxxxxxxxxxxxxxxx>
              wrote:

            
                On Fri, 2021-03-12 at 16:22 -0500, Terry Polzin
                  wrote:
                
                  Did you check the checksums?  Bad
                    download?
                  

                    On Fri, Mar 12,
                      2021 at 4:15 PM Robert G. (Doc) Savage via users
                      <users@xxxxxxxxxxxxxxxxxxxxxxx>
                      wrote:

                    
                        Is the CentOS-7-x86_64-DVD-2009.iso really
                          too big to burn on a DVD-R? Brasero under
                          Centos 7.9 and Fedora 33 both say a 4.7GB
                          blank disk isn't big enough.
                        

                        --Doc Savage
                            Fairview Heights, IL
                      
                    
                Terry,
                

                The checksums are perfect. What I am probably
                  looking for is anyone who CAN burn that iso to a blank
                  DVD-R or DVD+R. If Brasero won't do it, is it because
                  the iso image is just every-so-slightly too large?
                

                In this particular situation, dd-ing the image to
                  an 8GB thumb drive is not a player because the target
                  machine is a 2011 vintage Dell PowerEdge that does not
                  support booting from thumb drives.
                

                --Doc Savage
                    Fairview Heights, IL
                
              
            According to wikipedia DVD-R gets you the closest: 
              4,707,319,808   (MAX)
            

            CentOS-7-x86_64-DVD-2009.iso  bytes: 4,712,300,544
            

          It's only slightly over, it's
            possible that at least k3b and maybe xfburn supports
            'overburn' . (I remember this more from the CD days than DVD
            though).
          

          Otherwise I wonder if you could use
            'ISO Master' and downsize it slightly.
        
      
      Anthony,
      

      THANK YOU. Yours is precisely the answer I was looking for.
        That iso file should never have been released as part of the
        general distribution.
      

      I wonder how I could ask for that iso to be rebuilt to a size
        that fits on a blank DVD.
      

      --Doc Savage
          Fairview Heights, IL
      

    There is a program called "PlopBootmgr" that can be installed on a
    CD that will allow systems to boot from a usb drive that don't have
    that as a boot option.

    
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