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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2009-06-14 23:52:11 +0200
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2009-06-14 23:52:11 +0200
commit58d8fcaf4184569bdda4c3c312195dfacb880d88 (patch)
tree4fd5a6eacf880e966d215f0214b8f8e07e0e45e9 /hurd/running/qemu/babhurd_image.mdwn
parentf0f82000b192bc85100dc9358dddca282f394454 (diff)
parent109ced1ce651d57ee802f23ca7d9985286823134 (diff)
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+What this little Hurd image can do
+----------------------------------
+
+### About this text
+
+This is the README file accompanying a
+[disk\_image](http://draketo.de/dateien/hurd/bab-hurd-qemu-2008-10-29.img.tar.bz2) for
+[[running_the_GNU/Hurd_via_qemu|hurd/running/qemu]]. To run the disk image, just use *'qemu
+disk_image.img'*.
+
+You can find the custom *.bashrc* used to tell the user about it as well as this text itself
+in the Mercurial repository [hurd_intro](http://bitbucket.org/ArneBab/hurd_intro).
+
+### Intro
+
+The Hurd has some unique capabilities, and we created this simple image
+to enable you to easily try two of them:
+
+* The simplest of translators: Hello World!
+* Transparent FTP
+
+### Hello World
+
+To try out the simplest of translators, you can go the following simple steps:
+
+ $ cat hello
+ $ setrans hello /hurd/hello
+ $ cat hello
+ "Hello World!"
+ $ settrans -g hello
+ $ cat hello
+
+What you do with these steps is first verifying that the file "hello" is empty.
+
+Then you setup the translator /hurd/hello in the file/node hello.
+
+After that you check the contents of the file, and the translator returns "Hello World!".
+
+To finish it, you tell the translator to go away from the file "hello" via "settrans -g hello" and verify that now the file is empty again.
+
+### Transparent FTP
+
+We already setup a a transparent FTP translator for you at /ftp:
+
+With it you can easily access public FTP via the file system, for example the one from the GNU project:
+
+ $ ls /ftp://ftp.gnu.org/
+
+But you can also do this very easily yourself:
+
+ $ # Setup the translator on the node ftp:
+ $ settrans -c ftp: /hurd/hostmux /hurd/ftpfs /
+
+and you can access FTP sites via the pseudo-directory ftp:, for example with
+
+ $ ls ftp://ftp.gnu.org/
+
+What you do here is setting up the translator /hurd/hostmux on ftp: and passing it the translator /hurd/ftpfs to use for resolving accesses as well as / as additional path component.
+
+
+These were only two basic usages of translators on the Hurd. We're sure you'll quickly see many other ways to use this.
+
+As a last comment: You can setup a translator on any node you have access to, so you can for example mount any filesystems as normal user.
+
+You might currently be logged in as root, but you could just as well do the same as normal user.
+
+Why don't you try it out?