On Tue, Feb 2, 2010 at 6:53 PM, Frank Polte <akasaka...@googlemail.com> wrote: > > > On 2 Feb., 16:42, William Stein <wst...@gmail.com> wrote: >> >> >> Quick note: 1. I make squashfs for Sage, and if you do it right, it's >> 390MB. You have to replace the spkg's by empty files. >> > That's right, I thought you need the spks's to (re)compile other > packages?
You can replace them all with empty files with the same names, and Sage will work fine. > Then you can use sage from an old 512MB usb-stick or sd card. Yes, definitely. > For schools in poorer countries this could be useful. > The old debian squashfs had builtin lzma support, but they had to drop > it > when squashfs came into the kernel. Unfortunatly the kernel lzma is > not good enough > for squashfs, so they have to use gzip. The kernel develeoper are > working > on this. So later the sqfs files will get smaller. We will see. > >> 2. Anybody can make squashfs's for Sage or anything else themselves; >> having us distribute them would increase our workload a lot... >> > I know this, therefore I would maintain it, because I produce these > sqfs files anyway. > I'm using sage on my jaunty (9.04) vserver, which does not have > enough > ram/swap for compiling sage, therefore I have such an image. > On the other hand my idea was something like a netbook edition too. > I didn't want to increase your workload. I thought it would be nice to > give others > my sage sqfs files, because it takes quite a lot of time to make them. We can give you free web space where you can post these images. Write me offlist. (wst...@gmail.com) > >> > that's not an improvement. On the other hand, are you talking about >> > the live cd? Yes, that's an outdated and when you have created a >> > better live cd, that runs on more systems, we are happy to host it. > > I don't know if it is worth the time. I can write a wiki how to use > the standard ubuntu > install cd system and the sqfs file from a usb-stick to use it live. > This would be > much easier and the problem will be solved by canonical or the ubuntu > community. > >> > also don't understand the part about speed and parallelization. On all >> > my PCs the extraction speed is limited by disk I/O ... > copying 50000 files with 1.4GB or 1 File with 1.4GB is very different. > And the sqfs is just 390 MB or 640 MB as you wish. > > Thank you very much for this great open source project. > Frank Polte I use squashfs + unionfs for the virtualbox Sage distribution. Do you ever use Virtualbox? It would be great if somebody else could take over the job (once ever 3 weeks) of updating the virtualbox image and rebuilding the squashfs+unionfs install, since I don't like doing it at all. William > > -- > To post to this group, send an email to sage-devel@googlegroups.com > To unsubscribe from this group, send an email to > sage-devel+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/sage-devel > URL: http://www.sagemath.org > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
