livecd August 2006

livecd@lists.fedoraproject.org

16 participants
17 discussions

RE: [Fedora-livecd-list] Making two additional directories writable
by Martin Steinmann 16 Aug '06

16 Aug '06

> -----Original Message----- > From: fedora-livecd-list-bounces(a)redhat.com [mailto:fedora-livecd-list- > bounces(a)redhat.com] On Behalf Of Jasper O'neal Hartline > Sent: Tuesday, August 15, 2006 12:28 PM > To: fedora-livecd-list(a)redhat.com > Subject: Re: [Fedora-livecd-list] Making two additional directories > writable > > Martin Steinmann wrote: > > > I was trying to have two additional directories writeable in the /usr > > tree. To that effect I added two lines as follows to the movefiles.py > > file in /usr/share/kadischi. > > > > > > > > files_to_be_writable = [ > > > > '/var', > > > > '/tmp', > > > > '/etc', > > > > '/home', > > > > '/root', > > > > '/opt', > > > > '/mnt', > > > > '/media', > > > > '/usr/share/www/doc/vm_vxml', > > > > '/usr/share/www/doc/aa_vxml', > > > > ] > > > > > > > > That somehow did not work. The two directories on the generated Live > > CD are empty and not writable, even though there should be some files > > installed there by some of the additional RPMs pulled in during the > > creation of the Live CD. > > > > > > > > What am I missing? > > > You need to bind mount them from the kadischi.tar.gz in rc.readonly-livecd. This worked great - many thanks! I documented the process of building our LiveCD here: http://sipx-wiki.calivia.com/index.php/Kadischi We now have a complete Voice over IP (VoIP) PBX system on a LiveCD for demo purposes. This is a complete SIP system including plug & play config, redundant call control and lots of features. Kadischi has been great developing a very nice LiveCD that allows totally simple demo setups. We will publish the ISO on SIPfoundry (www.sipfoundry.org) probably next week. Many thanks --martin > > J. Hartline > > -- > Fedora-livecd-list mailing list > Fedora-livecd-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/fedora-livecd-list

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RE: [Fedora-livecd-list] Newbie question
by Martin Steinmann 16 Aug '06

16 Aug '06

> -----Original Message----- > From: fedora-livecd-list-bounces(a)redhat.com [mailto:fedora-livecd-list- > bounces(a)redhat.com] On Behalf Of Jasper O'neal Hartline > Sent: Tuesday, August 15, 2006 2:35 AM > To: fedora-livecd-list(a)redhat.com > Subject: Re: [Fedora-livecd-list] Newbie question > > I couldn't reproduce this using that same repository. > I would assume your cache had been corrupted in the process of running > Kadischi.. > which isn't too out of place since /tmp/cache could well have been run > over by tmpwatch. > Try removing /tmp/cache (if you have it) and try again. This may fix > this problem. I removed the files in /tmp and that solved the problem - thanks. Going back to my own repository though, I ran into the same problem again. I have a work around using a strange directory structure for my repository as follows: ~/i386 ~/i386/repodata ~/i386/Fedora ~/386/Fedora/RPMS ~/386/Fedora/RPMS/repodata ~/386/Fedora/RPMS/Fedora ~/386/Fedora/RPMS/Fedora/RPMS Where ~/ is /home/myuser The RPMs are actually in both RPMS directories. This is obvious not the way it should be, but with a normal repository structure I could not get kadischi to find the files. --martin > > J. Hartline > Martin Steinmann wrote: > > > Hi > > > > I am new to Kadischi but succeeded at building my first LiveCD. > > However, something changed - maybe I upgraded the FC5 system or > > something - and now Kadischi does not work anymore. > > > > I use this command directly from the Wiki: > > > >kadischi > http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os > /tmp/fedora-live.iso > > > > It runs through up until the moment when it would start to actually > > install the RPMs. The error message is: > > > > The file expat-1.95.8-8.2.i386.rpm cannot be opened. This is due to a > > missing file or perhaps a corrupt package. If you are installing from > > CD this usually means that the CD media is corrupt ..... REBOOT > > > > However, that file is in the repository. > > > > Any suggestions? > > > > -- > Fedora-livecd-list mailing list > Fedora-livecd-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/fedora-livecd-list

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Making two additional directories writable
by Martin Steinmann 15 Aug '06

15 Aug '06

I was trying to have two additional directories writeable in the /usr tree. To that effect I added two lines as follows to the movefiles.py file in /usr/share/kadischi. files_to_be_writable = [ '/var', '/tmp', '/etc', '/home', '/root', '/opt', '/mnt', '/media', '/usr/share/www/doc/vm_vxml', '/usr/share/www/doc/aa_vxml', ] That somehow did not work. The two directories on the generated Live CD are empty and not writable, even though there should be some files installed there by some of the additional RPMs pulled in during the creation of the Live CD. What am I missing? --martin

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Newbie question
by Martin Steinmann 15 Aug '06

15 Aug '06

Hi I am new to Kadischi but succeeded at building my first LiveCD. However, something changed - maybe I upgraded the FC5 system or something - and now Kadischi does not work anymore. I use this command directly from the Wiki: kadischi http://download.fedora.redhat.com/pub/fedora/linux/core/5/i386/os /tmp/fedora-live.iso It runs through up until the moment when it would start to actually install the RPMs. The error message is: The file expat-1.95.8-8.2.i386.rpm cannot be opened. This is due to a missing file or perhaps a corrupt package. If you are installing from CD this usually means that the CD media is corrupt ..... REBOOT However, that file is in the repository. Any suggestions? --martin

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Re: Hosting your LiveCD
by amrobot 13 Aug '06

13 Aug '06

Hello, It will likely be a week or two, I've identified the project I'd like to include, I just need to find a hard drive (I have one that will be available to me within a week), install Fedora on it, and then likely use kadischi (or a kadischi like method) to create it. I've worked with remastering Knoppix before, and I'd like to try using fedora for a liveCD.. Eventually, I may suggest some possible changes to kadischi (if they are amenable), or maybe take what I've done to automate remastering knoppix (and changing it for fedora) and post that on sourceforge.. Menno Slaats also suggested that I try sourceforge, I might see what the parameters are to submit to their site. Thank you for your help! I'll post to the list when I've got a version that looks like it works well. -Roy Harish Pillay wrote: > Roy - > >> I am going to create a liveCD for myself based on verilog, rtl, board >> layout, circuit simulation, etc that might also be useful to electrical >> engineering, computer engineering and computer science students as well >> as budding professionals in the field. >> >> My problem is that I don't have the money, or internet connection that >> could support hosting the ISO. >> >> Does anyone know of somewhere that might be interested in hosting it? > > I can help you out here. I am with the Linux Users' Group (Singapore) and > we have disk space on our servers sitting at a hosting site with no > bandwidth > restrictions. Tell me when you are ready. > > Thanks. > > Harish Pillay, President > Linux Users' Group (Singapore) www.lugs.org.sg > >

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help?
by amrobot 13 Aug '06

13 Aug '06

Hello, I am going to create a liveCD for myself based on verilog, rtl, board layout, circuit simulation, etc that might also be useful to electrical engineering, computer engineering and computer science students as well as budding professionals in the field. My problem is that I don't have the money, or internet connection that could support hosting the ISO. Does anyone know of somewhere that might be interested in hosting it? -Roy Nielsen

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alternative rebootless installer, was Re: kexec instead of rebooting at the end of the install?
by Jane Dogalt 03 Aug '06

03 Aug '06

--- Matthew Miller <mattdm(a)mattdm.org> wrote: > So, tell me -- is this a crazy idea? Certainly no crazier than this idea I mentioned on the livecd list- --------------------------------------------- Rebootless Installer - Implementation Outline --------------------------------------------- Goal: A cd/dvd/bluray iso which serves as both a traditional livecd, and a traditional install cd (functionally akin to current ubuntu stuffs, but radically different implementation, as well as 'rebootless' feature) 1) take your linux distro (i.e. fc6). Create a "hardware agnostic" minimal (but useful) installation. I.e. resulting install image can be booted on any supported hardware, and all hardware configuration is done during normal system boot. I.e. the type of system installation you would put on a traditional 'livecd'. Now put this on a livecd, but with a cutting edge boot method such as... 2) the latest linux-from-scratch livecd implements a particularly novel livecd system. Traditionally, various implementations have usually used ram based tmpfs, combined with rom based cd/dvd iso9660, zisofs, squashfs. Along with some bindmounting, or unionfs to get a nice copy-on-write action going. The latest LFS livecd however uses a radical method of storing the system as an ext3 filesystem image (sparse file) on the cd/dvd iso9660 fs, but compressed with zisofs. Then, during early boot, a tmpfs is created, and a large sparse file is created in tmpfs. This sparse file in tmpfs is then used as a devicemapper snapshot device, allowing an alternate COW mechanism to the traditional unionfs mechanism. Now, extending the radicalism- 3) make the following change to (2): Instead of using the sparse file image on dvd, and in tmpfs, use device mapper mirrors for both, initially created as broken mirrors, with the unbroken half being the same image used in (2). 4) now, one can implement an installer application on the livecd like so: - have user create target partitions the traditional way - now, to install, just set the target partitions as the unbroken halfs of the device mapper mirrors created in (3). Then let the device mapper "install" the system by repairing the mirror. - once the mirror is unbroken, manually rebreak it, the opposite way, so the tmpfs image, and cd/dvd rom can be discarded/forgotten-about/unmounted/ejected. - thus once the installer has completed, the same livecd system that the user has been looking at and playing with, _*has become the installed system*_. No reboot is necessary, except for normal kernel maintenance as released updates dictate. - one beneficial side effect, is that the system will be prepared from the beginning for the user to optionally add another disk to be used to 'fix' the broken mirror. (or alternately the bootscripts could remove the broken mirror cruft during the next reboot, so it looks like a perfectly 'normal' system). - one last note, I haven't actually experimented with all of this, but I'm guessing that it's also possible to make the COW dm-snapshot device disappear by "writing back" it's contents to the main image. Otherwise one would have to keep around the original small system image (which isn't necessarily a useless side effect). -jdog __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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livecd August 2006