Date: Wed, 21 Jul 2004 18:34:43 -0300 From: Jean Milanez Melo <jmelo-lists@freebsdbrasil.com.br> To: pablo.morales@abitab.com.uy Cc: "current@freebsd.org" <current@freebsd.org> Subject: Re: FreeBSD embedded: TinyBSD Message-ID: <1090445683.665.28.camel@offset.freebsdbrasil.com.br> In-Reply-To: <20040721153259.7E9E623FBD@mail.abitab.com.uy> References: <20040721153259.7E9E623FBD@mail.abitab.com.uy>
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Hi, Yes, it refers to the image size according to the space of the destination device. You can create a image with GEODE, put GODE cpu options in TINYBSD kernel file and then test your environment. - Jean On Wed, 2004-07-21 at 12:32, pablo.morales@abitab.com.uy wrote: > HI there boys. > I'm writing to Uruguay > I'm interested in TinyBSD, I'd like to know if the term ebeded refers > only to the *size* or if you have been tweking the kernel code. > > I'm working with Some GEODE stuff, using linux, I'm using the terminals > just like that, remote PXE booting with nfs-root. > > I'd like to have access to your project to give it a try with this > enviroment. > > Thanx. > > > > > > > On 21/7/2004, "Jean Milanez Melo" <jmelo-lists@freebsdbrasil.com.br> > wrote: > > >On Wed, 2004-07-21 at 08:58, Patrick Gardella wrote: > >> Is there a web page for TinyBSD? > >> > >> patrick > > > > > >Not yet, but we're going to make one if people like the project and it > > gets well accepted by the community. We're definatelly putting up a > >lot > > of documentation on that page, though. We haven't done so yet because > > currently it's way too simple, as you can run it knowing only the > > information regarding the target device. > > > > For example, assuming a 32MB flash memory, one could use the following > > parameters to create an embedded system: > > > > ./tinybsd.sh 62592 4 32 > > > > Or optionally the name of the output image you want: > > > > ./tinybsd.sh 62592 4 32 myimage.bin > > > >- Jean Milanez Melo > > > >> > >> On Jul 20, 2004, at 11:48 AM, Jean Milanez Melo wrote: > >> > >> > Hello current, > >> > > >> > Please allow me to introduce myself, I'm one of the coordinators of > >> > the Brazilian FreeBSD Users group, coordinator of the official > >> > FreeBSD documentation's translation group and have been working with > >> > embedded FreeBSD systems since year 2000. > >> > > >> > I've been studying NanoBSD ever since Poul-Henning posted about it > >> > on one of > >> > the mailling lists, and I have been following this project closely. > >> > It > >> > really is a great project. > >> > > >> > However, I think it sometimes creates unnecessary partitions, takes > >> > too long to build the system due to make world and it copies lots of > >> > unneeded binaries, taking a lot of precious space. > >> > > >> > So me and Patrick Tracanelli (another active member of the Brazilian > >> > FreeBSD community) decided to write a new set of scripts to build > >> > embedded systems. We've named it TinyBSD, and its goal is to be > >> > faster > >> > at building-time, occupy less space on the target device and to ease > >> > customization like PicoBSD does. > >> > > >> > Untar/gzip the tinybsd.tgz file under /usr/src/release. > >> > > >> > # ls > >> > TINYBSD TODO tinybsd.basefiles tinybsd.sh > >> > > >> > We first take the file TINYBSD, which like in PicoBSD we can use to > >> > define or remove all kernel options to the new system. > >> > > >> > Then we have tinybsd.basefiles, where we define all binaries > >> > necessary > >> > to get the system running and anyone can edit it as they will. > >> > > >> > Finally we have the script itself, tinybsd.sh. It's a simple script, > >> > yet functional. We based it on NanoBSD's and its idea is to create a > >> > temporary work directory where the new system's directory tree will > >> > be > >> > created. Then it'll copy all files listed on tinybsd.basefiles to > >> > this > >> > tree. This copying process is essential to the speed of the building > >> > process, as we eliminate the recompiling phase. The reason for this > >> > is > >> > FreeBSD 5.1' dynamically-linked base system, which take much less > >> > space than the old statically-linked ones. This way we can also do > >> > the > >> > copying without affecting the production system in any way. > >> > > >> > After all this, we compile the kernel using the TINYBSD file and then > >> > we install the necessary libs using the dependencies' output from the > >> > binaries. We populate the /etc directory on the temp work directory > >> > and put in a few important default settings in /etc/rc.conf, like: > >> > > >> > hostname="tinybsd.freebsd.org" > >> > sendmail_enable="NONE" > >> > sshd_enable="YES" > >> > usbd_enable="NO" > >> > inetd_enable="NO" > >> > portmap_enable="NO" > >> > update_motd="NO" > >> > varsize="8192" > >> > diskless_mount="/etc/rc.d/diskless" > >> > > >> > Lastly, we create the empty image according to the specifications for > >> > the device passed in as a parameter and copy the entire temp > >> > directory > >> > to the new image. After that, the user can use dd to write the final > >> > image to the target device. > >> > > >> > Booting the system works as embedded systems do, mounting /var and > >> > /tmp as MFS filesystems. > >> > > >> > The most interesting point is the space used by default, only 19MB. > >> > > >> > As you can see, it's pretty simple. But since PicoBSD is practically > >> > unusable with the 5.x series, TinyBSD could be an interesting > >> > alternative along with NanoBSD to be put on the base system in future > >> > versions. > >> > > >> > Patrick and I have been thinking of enhancing the script and adding > >> > end-user helping tools such dialog-based menus and the likes, for > >> > more > >> > details see our TODO file. In case the FreeBSD project has any > >> > interest > >> > in our project, we can perfectly maintain TinyBSD as an embedded > >> > option > >> > for FreeBSD users. > >> > > >> > We would like that the interested parties make tests and then > >> > report bug, sends sugestions to improve the TinyBSD. > >> > > >> > Thank you for your attention > >> > Jean Milanez Melo > >> > <tinybsd.tgz>_______________________________________________ > >> > freebsd-current@freebsd.org mailing list > >> > http://lists.freebsd.org/mailman/listinfo/freebsd-current > >> > To unsubscribe, send any mail to > >> > "freebsd-current-unsubscribe@freebsd.org" > >> > >> > > > >_______________________________________________ > >freebsd-current@freebsd.org mailing list > >http://lists.freebsd.org/mailman/listinfo/freebsd-current > >To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > > >
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