Re: First try on Hurd-H4-CD1 jigdo files
Philip Charles wrote:
Good luck, let us know how you get on. We need to speed up the transfer
of the iso's from Dunedin to Budapest.
If you have a local debian tree, that should be no problem at all. It
works already when you have just the files that are mirrored in the same
relative position local as on the mirrors, so you don't even need a
whole mirror. And I don't think anyone would like to have a Debian
mirror just for fun. This files would be taken out of the image and
fetched from the mirrors when rebuilding the system. That would be the
straigth forward approach.
Could you start thinking of how we could use a loop mounted iso image to
speed things up.
I tried to filter the files list from the image and the list of my
local copy of alpha, but it showed that I realy need to know exactly
which files can't be fetched from a mirror and which can. I can make
jigdo-file take the alpha files instead of the loop-mounted files, but I
did not find a usable way of excluding the non-fetchable files. I tried
a ls-LR file froma a mirror, but I need the path to the files too, and I
don't see a reasonable short way of getting this out of the ls-LR.
If someone could provide me a 'find -type f' result of a Debian mirror
and the hurd directory of alpha, that would bring me a big step further.
Then I could match that list with a list of files in the image, leaving
out files that can't be fetched to remain in the template. Finally I'd
present jigdo-file the alpha file list before the matched image file
list, so that the alpha files are stamped out too.
To sum up, first we need a list of files that can be found on mirrors
with their corresponding location, what I'm trying to do ATM. And second
the files itself for the checksums, which we get from the mounted image.
I now work with a local copy of alpha, just to be able to separate the
server locations in the jigdo file, but this should not be needed with a
file listing from alpha and some file list manipulation.
In my theory this would result in the perfect hurd-H4-CD1 jigdo files.
(But as a wise man said: I practice the difference between theory and
practice is mach bigger than in theory ;-)
By the while, H4 seem not to be the best place/time for trying jigdo.
Patrick
ps: Can anyone give my a size of a Debian mirror? Just to know what we
try to avoid.
--
Engineers motto: cheap, good, fast: choose any two
Patrick Strasser <pstrasser at bigfoot dot de>
Student of Telematik, Techn. University Graz, Austria
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