<br /> A very neat trick… – Debian Planet

Welcome to Debian Planet

News for Debian. Stuff that *really* matters

These are important Debian sites one should not be without!

  • Official Debian site
  • Package search
  • Mailing list archives
  • Bug reports
  • Debian on CD
  • Debian Weekly News — excellent news source!
  • Unofficial APT sources

  • Developers’ Corner
  • Community
    Need help? You’re not alone on this planet.

  • debianHELP
    (User support site)

  • Debian International
  • DebianForum.de

  • DebianForum.dk

  • EsDebian

  • DebianWorld

  • Debian-Fr

  • MaximumDebian

  • DebianUsers

  • Debian-BR

  • DebianHOWTO (Deutsch)
  • Contribute
    Got that latest or greatest scoop? Perhaps you have some important news for the Debian community? Submit a news item!

    Or perhaps you’ve written a rather ground breaking insight into some aspect of Debian and you feel compelled to share it with others? Knock up a longer editorial article and send it to the editors.

    General feedback should be sent to staff@debianplanet.org

    The place to get help on a Debian problem (after reading docs) or to just chat and chill is #debian on irc.oftc.net.

    Many of the Debian Planet staff live there so pop by and say hello.

    Debian Planet also has its own channel on the same network called #debianplanet.


    DP is sponsored by Xinit Systems.

    Domains paid for and hosted by uklinux.net.

    Buy your Debian merchandise at DebianShop.com.

    Support Debian through Bytemark Hosting. At least £7 will be given for each new account


    A very neat trick…
    Submitted by robot101 on Friday, June 28, 2002 – 00:41
    So, you have a spare 160Gb HDD and a 100Mbit fiber connection to your home. What do you do? Set up a daily Debian archive snapshotting system, of course! This is exactly what Fumitoshi UKAI did with his new snapshot.debian.net server. It uses pdumpfs to make a daily record of the state of the *entire* Debian archive…
    This means you can use an apt line like:

    deb http://snapshot.debian.net/archive/2002/06/20/debian unstable main contrib non-free
    deb http://snapshot.debian.net/archive/date/last-week/debian unstable main contrib non-free

    to reference the archive on any day. This is immensely useful for going back to a version of a package before some breakage took place, or even for having the mirror in a static state for eg jigdo to be able to find all the files that existed when the CD image was generated.

    The other neat trick is that on a per-package basis it generates Packages.gz files, so with a line like:
    deb http://snapshot.debian.net/archive pool packagename1 packagename2
    you can track all the available versions of specific packages. This has a knock-on benefit that a woody user could track the latest sid version of a package (dependencies permitting).

    This is a *really* cool system, well done Ukai! And, I can’t believe you can get 100Mbit fiber to your home in Japan. 😛

    Category: News

    Control panel

    Comment viewing options:

    Select your prefered way to display the comments and click ‘Update settings’ to activate your changes.

    Subject: Re: A very neat trick…
    Author: robot101
    Date: Saturday, 2002/06/29 – 02:21
    This is exactly the thing I was talking about. Jigdo does not like “moving targets”, but with this – it doesn’t need to try and deal with it. You can point it at first a local mirror, and then point it to this to patch in anything missing. So now anything becomes jigdo-able, sid, woody, CD images, DVD images, etc.
    [ return ]


    Subject: OT: jigdo is even scalable (was: Re: A very neat trick…)
    Author: iotasmall
    Date: Saturday, 2002/06/29 – 10:55
    After having a go on jigdo with some CD images and a (eventful) DVD image, I’m going to love jigdo and Ukai-san.

    Recreating a 650MB image from a local mirror is quite fast in about 10 or 15 mins. It’s even better on a 4.3GB image, which is less than half and hour. It wasn’t possible for me without Ukai-san’s kindness and good work. And thank you to Debian Planet, otherwise, where else I can find out the good News.


    Iota Small

    [ Please login, or register ]

    Search articles

    ·News (187)
    ·Features (4)
    ·Site News (8)
    ·HOWTOs (40)
    ·Tips (5)
    ·Opinion (13)
    ·Q & A (18)
    ·Sponsorship (1)

    Log in


    Remember me

    » Register
    » New password

    Debian Security Announcements
    DSA-338 proftpd
    DSA-337 gtksee
    DSA-336 linux-kernel-2.2.20
    DSA-335 mantis
    DSA-334 xgalaga
    DSA-333 acm
    DSA-332 linux-kernel-2.4.17
    DSA-331 imagemagick
    DSA-330 tcptraceroute
    DSA-329 osh

    Latest poll: I read DebianPlanet …
    Reload, damnit, reload!
    … daily.
    … once every couple of days.
    … weekly.
    … via DWN links.
    … via RSS on Slashdot.
    I don’t.

    Total votes: 768
    5 comments · older polls

    home · archives · news feeds · about · polls · search · sections · user account

    Powered by the amazing Drupal

    Debian Planet is not officially related to the Debian Project.
    Debian and the Debian logo are trademarks of Software in the Public Interest, Inc.