<a href="http://forums.fedoraforum.org/showthread.php?t=221719">http://forums.fedoraforum.org/showthread.php?t=221719</a><div><br></div><div>Does anyone know Sideways? What does it mean that he's a retired user?</div><div> <br></div><div>What do people think of his idea?</div><div><br></div><div>Also should we go for a full install? How big a USB would be we need for that?</div><div><br></div><div>Thanks,</div><div>Caroline<br><br><div class="gmail_quote"> On Wed, Jul 29, 2009 at 9:22 AM, Mathieu Bridon (bochecha) <span dir="ltr"><<a href="mailto:bochecha@fedoraproject.org">bochecha@fedoraproject.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> <div class="im">>> From what I understand, the squashfs is *never* rewritten once created.<br> >> All changes are stored in a "LVM Snapshot", which is just another file<br> >> on the underlying FAT filesystem.<br> ><br> > As far as I know, what happens is this:<br> ><br> > * At build time, all packages are installed (and so is the base system)<br> > and end up in an image, which gets compressed using squashfs.<br> ><br> > * Once you boot your disk / device, any change you make gets saved into<br> > this spurious file (either for the overlay or home), which contains only<br> > the changes made since you booted for the first time. Those changes get<br> > - again afaik - mapped with some magic (don't ask me how, maybe some<br> > Fedora folks or the wiki know) on the fly into the usual filesystem.<br> <br> </div>That's also what I understood. And if I'm not mistaken, the "magic"<br> involved is a pinch of UnionFS (a read-write partition that is mounted<br> as an overlay on top of the root filesystem).<br> <br> Maybe the livecd-tools guys could confirm this. Jeremy, IIRC you<br> worked on this, could you enlighten us ?<br> <br> <br> ----------<br> <font color="#888888"><br> Mathieu Bridon (bochecha)<br> </font><div><div></div><div class="h5">_______________________________________________<br> Sugar-devel mailing list<br> <a href="mailto:Sugar-devel@lists.sugarlabs.org">Sugar-devel@lists.sugarlabs.org</a><br> <a href="http://lists.sugarlabs.org/listinfo/sugar-devel" target="_blank">http://lists.sugarlabs.org/listinfo/sugar-devel</a><br> </div></div></blockquote></div><br><br clear="all"><br>-- <br>Caroline Meeks<br>Solution Grove<br>Caroline@SolutionGrove.com<br><br>617-500-3488 - Office<br>505-213-3268 - Fax<br> </div>