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  • Re: Please integrate MD5SUM into ISO files

    From Nicholas D Steeves@21:1/5 to Alexey Eromenko on Sun Jul 20 19:30:01 2025
    Hi Alexey,

    Alexey Eromenko <[email protected]> writes:

    Hello,

    One thing that I consider very useful -- is the addition of MD5sum
    into the ISO image itself.

    Thankfully Debian already has the tools to do this:
    "implantisomd5 mydata.iso"
    and
    "checkisomd5 -v mydata.iso"

    This is very handy to check multiple ISOs quickly without resorting to
    an external file like "isos.md5", especially when I copy the ISOs from
    one Hard Disk to the next, and may forget the accompanying .md5 file.

    This idea comes from Red Hat, but it is universally convenient to use
    on any ISO files.

    Neat! Would you please "reportbug debian-cd" so your request doesn't
    fall through the cracks? That said, can this program be extended to use sha512sums instead, or is there an alternative that uses SHA512 instead
    of MD5?

    https://www.debian.org/CD/faq/#verify

    Regards,
    Nicholas

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  • From Lennart Sorensen@21:1/5 to Alexey Eromenko on Mon Jul 21 04:30:01 2025
    On Mon, Jul 21, 2025 at 01:12:12AM +0300, Alexey Eromenko wrote:
    Debian's report bug is like 20 years old now...
    It asks me dumb questions like "Please enter the name of your SMTP
    host. Usually it's called something like "mail.example.org" or "smtp.example.org"."

    Nobody In their right mind uses SMTP or any such ancient technology
    for like 20 years now. Now everybody and their dog are on GMail +
    using web-browsers for bug tracking.
    So I got no clue what kind of SMTP I am using -- only GMail.

    You can run reportbug -p which will print out the bug report email on
    the screen instead of trying to send it, which you can then copy and
    paste into whatever you do use for sending emails and send it to the [email protected] email.

    --
    Len Sorensen

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  • From Steve McIntyre@21:1/5 to Alexey Eromenko on Sat Jul 26 01:30:01 2025
    On Sun, Jul 20, 2025 at 06:54:55PM +0300, Alexey Eromenko wrote:
    Hello,

    One thing that I consider very useful -- is the addition of MD5sum
    into the ISO image itself.

    Thankfully Debian already has the tools to do this:
    "implantisomd5 mydata.iso"
    and
    "checkisomd5 -v mydata.iso"

    This is very handy to check multiple ISOs quickly without resorting to
    an external file like "isos.md5", especially when I copy the ISOs from
    one Hard Disk to the next, and may forget the accompanying .md5 file.

    This idea comes from Red Hat, but it is universally convenient to use
    on any ISO files.

    Sorry, no:

    1. This modifies the image, so the checksums we make of images *as we
    make them* would be broken.

    2. MD6 has not been a sensible algorithm for secure hashing in a very
    long time. We stopped providing MD5 checksums for our images
    several years ago because of this.

    --
    Steve McIntyre, Cambridge, UK. [email protected] The two hard things in computing:
    * naming things
    * cache invalidation
    * off-by-one errors -- Stig Sandbeck Mathisen

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