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  • Re: d-i bug: spurious checksum error?

    From john doe@21:1/5 to Charles Curley on Wed Apr 19 09:20:01 2023
    On 4/18/23 23:52, Charles Curley wrote:
    I started a test installation with a preseed file. I launched d-i with
    the following command line:

    expertgui auto file=/media/preseed.cfg DEBCONF_DEBUG=developer

    When I told d-i to get the preseed file, it replied with a screen about
    an incorrect checksum for the preseed file. The screen showed a
    checksum string of "". (I took a screen shot of the error message, then failed to preserve it. Sorry.)

    I had recently added several items to my preseed file, one of which was:


    # The installer can optionally verify checksums of preconfiguration files
    # before using them. Currently only md5sums are supported, list the md5sums
    # in the same order as the list of files to include.
    #d-i preseed/include/checksum string 5da499872becccfeda2c4872f9171c3d

    I deleted those lines entirely, and re-ran the installation. I did not
    get the checksum error on the second try, and the preseed file was
    properly located and run.

    Did I hit a bug? I doubt it is the way the last line is commented out, because there are plenty of other lines that are similarly commented
    out (no space between the # and the d).

    syslog and preseed.cfg files are attached.




    Unless I'm missing something, the file is to be checksummed before the
    content is available to d-i, the lines would simply be there to
    document what the installer can do.

    I would assume that it would work as kernel boot parameter.

    --
    John Doe

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  • From Philip Hands@21:1/5 to Charles Curley on Wed Apr 19 12:40:01 2023
    Charles Curley <charlescurley@charlescurley.com> writes:

    I started a test installation with a preseed file. I launched d-i with
    the following command line:

    expertgui auto file=/media/preseed.cfg DEBCONF_DEBUG=developer

    According to the log, you actually invoked it with file=preseed.cfg:

    Kernel command line: BOOT_IMAGE=/install.386/vmlinuz priority=low vga=788 initrd=/install.386/gtk/initrd.gz --- auto file=preseed.cfg DEBCONF_DEBUG=developer

    which appears to have confused the installer into looking for it in '/usr/lib/fetch-url//preseed.cfg':

    /bin/fetch-url: .: line 35: can't open '/usr/lib/fetch-url//preseed.cfg': No such file or directory

    which isn't exactly helpful, and it certainly could have done better
    when telling you what was wrong, but it's not at all clear that it was
    going to be able to guess that you meant '/media/preseed.cfg' when you
    said 'preseed.cfg'.

    So, I'd say there's perhaps a bug in what it should guess the user meant
    when specifying a relative path as a value for preseed/file, but
    probably more likely it should just reject a relative path at that point
    with an error about it needing a path that is somehow anchored.

    Cheers, Phil.
    --
    |)| Philip Hands [+44 (0)20 8530 9560] HANDS.COM Ltd.
    |-| http://www.hands.com/ http://ftp.uk.debian.org/
    |(| Hugo-Klemm-Strasse 34, 21075 Hamburg, GERMANY

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  • From Charles Curley@21:1/5 to Philip Hands on Wed Apr 19 19:20:01 2023
    On Wed, 19 Apr 2023 12:20:56 +0200
    Philip Hands <phil@hands.com> wrote:

    According to the log, you actually invoked it with file=preseed.cfg:

    Kernel command line: BOOT_IMAGE=/install.386/vmlinuz priority=low
    vga=788 initrd=/install.386/gtk/initrd.gz --- auto file=preseed.cfg DEBCONF_DEBUG=developer


    Aha! Thank you for that catch. I re-ran the installation, double
    checking my command line, and did not get that error.


    --
    Does anybody read signatures any more?

    https://charlescurley.com
    https://charlescurley.com/blog/

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