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Hi, I had downloaded CentOS isos(the DVD one). I realize there are always iso 2 files for the DVD, like CentOS-6.4-x86_64-bin-DVD1.iso CentOS-6.4-x86_64-bin-DVD2.iso Why are there 2 iso DVDs with different ...
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  1. #1
    Linux Newbie
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    CentOS iso downloads


    Hi,

    I had downloaded CentOS isos(the DVD one).
    I realize there are always iso 2 files for the DVD, like

    CentOS-6.4-x86_64-bin-DVD1.iso
    CentOS-6.4-x86_64-bin-DVD2.iso

    Why are there 2 iso DVDs with different sizes (the first one about 4.1 GB, and second one about 1.4GB), when installation can be completed with the DVD1??

    Thanks,
    ana

  2. #2
    Trusted Penguin Irithori's Avatar
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    Because you can choose what groups to install and depending on the selection the second DVD might be needed.
    You must always face the curtain with a bow.

  3. #3
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    I downloaded CentOS 6.3 dvd isos, and when I wanted to install the basic server with packages like GNOME desktop and few others that I selected from 'Additional Software Repositories', it prompted me with something like 'corrupted iso installer'.

    Is this when the 2nd dvd has to be inserted, or is the iso image really corrupted??

    Thanks,
    Aigini

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  5. #4
    Trusted Penguin Irithori's Avatar
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    Either the ISO is corrupt or the process is for e.g. RAM issues
    You can check the ISO integrity as part of the installation.
    You must always face the curtain with a bow.

  6. #5
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    Quote Originally Posted by Irithori View Post
    Either the ISO is corrupt or the process is for e.g. RAM issues
    You can check the ISO integrity as part of the installation.
    How do I check the ISO integrity??? Is it by md5sum?

    My RAM is 2GB. Is it too small to install Centos 6.3 x86_64 on?

  7. #6
    Trusted Penguin Irithori's Avatar
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    You can check it manually with md5sum, but there is also a step during installation where it asks to check the media.

    2Gbyte ram is plenty for the system itself.
    Services may take (much) more.
    You must always face the curtain with a bow.

  8. #7
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    Quote Originally Posted by Irithori View Post
    You can check it manually with md5sum, but there is also a step during installation where it asks to check the media.

    2Gbyte ram is plenty for the system itself.
    Services may take (much) more.
    I downloaded a different iso, CentOS 6.4, and this time, I saved the md5sum text file that comes as a package with the installer.

    After the iso download, I ran the md5sum checker, and the checksum is similar/identical with the one in the text file. Therefore, I suppose this is the correct/non-corrupt iso image.

    Another question is, when I want to insert the 2nd dvd to install other packages, will it prompt at the screen?? Like install 2nd DVD/CD or something like that??

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