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Thread: openprinting-ppds-postscript-hp cannot be authenticated!

  1. #1
    Join Date
    Jun 2006
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    openprinting-ppds-postscript-hp cannot be authenticated!

    While doing upgrades this morning found this error:

    The following packages will be upgraded:
    openprinting-ppds-postscript-hp
    1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
    Need to get 1217kB of archives.
    After this operation, 0B of additional disk space will be used.
    Do you want to continue [Y/n]?
    WARNING: The following packages cannot be authenticated!
    openprinting-ppds-postscript-hp
    Install these packages without verification [y/N]? n
    E: Some packages could not be authenticated

    Is this a package from the Intrepid repository, can not find any reference, just one called hp-pppd. Verifying third party apt sources can not find either.

    I am puzzled.

  2. #2

    Re: openprinting-ppds-postscript-hp cannot be authenticated!

    I had to do a little digging on this too. Here's what's going on.

    If you run sudo apt-get update in a terminal window and then scroll back up the output, you'll notice lines like these:

    Code:
    Ign http://www.openprinting.org lsb3.2 Release.gpg
    Ign http://www.openprinting.org lsb3.2/postscript-hp Translation-en_US
    Get:10 http://www.openprinting.org lsb3.2 Release [30.2kB]
    Ign http://www.openprinting.org lsb3.2/postscript-hp Packages
    Hitting openprinting.org, even though openprinting.org is NOT in /etc/apt/sources.list? This, coupled with the fact that these are open-source drivers, leads me to belive that the package list for the main repository is pointing this package over to openprinting.org instead of us.archive.ubuntu.org. By default, the apt system in Ubuntu only has keys for ubuntu.com servers.

    If you check out The Linux Foundation's OpenPrinting Driver List, you'll see a whole slew of drivers, including Postscript-HP. If you read this Linux Foundation forum thread you'll get the gist of what's going on.

    I completely get that users will be able to get the most up-to-date drivers as soon as possible with this method. But by taking this shortcut (which I don't think was taken in previous versions), the Ubuntu devs have tripped their own security system.

  3. #3
    Join Date
    Jun 2006
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    Re: openprinting-ppds-postscript-hp cannot be authenticated!

    thanks!

    Now there is reasonable doubt!

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