livecd January 2008

livecd@lists.fedoraproject.org

32 participants
34 discussions

[PATCH] installroot mountpoint OSError
by Jeroen van Meeuwen 14 Jan '08

14 Jan '08

Hi, When the installation root or mount point is attempted to be created, and already exists, livecd-tools will show a traceback and fail to continue. I'm thinking that creating the directory on which to loopmount something doesn't need to show a traceback under this particular circumstance, as livecd-tools should just ensure the directory is there. Attached is a small patch resolving this (might also test if exists and rmtree if it does and then recreate it). Kind regards, Jeroen van Meeuwen -kanarip

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Issue with customized Fedora Live CD
by Sebastian Dziallas 11 Jan '08

11 Jan '08

Hi there! I am going to build a customized Fedora Live CD with some educational applications using revisor. In the repo config, I needed to exclude *.i586 and aspell-* (apart from aspell and aspell-en) to solve conflicts. In the end, the image was successfully created (a little bit larger than expected, currently approx. 750 MB, but that's not the problem). I have tested the image in a VMware installation and there, I got the following error message: WARNING: Requested /sbin/init binary does not exist on rootfs. Dropping to a shell. Good Luck! Does anybody have an idea what might be causing this? BTW: The kickstart file is, customized, but based on the original livecd-fedora-8-desktop.ks, which also includes livecd-fedora-8-base-desktop.ks. Cheers, Sebastian

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[ANNOUNCE] VirOS: it's alliiivvvveeee (at least for bug-free LiveUSB persistence)
by Douglas McClendon 11 Jan '08

11 Jan '08

Fellow Fedora LiveCD Enthusiasts: I present, in lieu of actual FudCON participation, this new software release- VirOS-0.5-20080111, while still a few days away from being a functional drop in replacement for livecd-creator which does not require root privileges to run, does at least support adding my LiveUSB persistence implementation to the Fedora-8 LiveCD, and similar LiveISO images. (without requiring root privs, or running much faster as root if you like living on the edge) Basically it works like this- viros lixmog --output=newlive.iso --addtrait=ZyX.overlay.f8 live.iso if live.iso was the fedora 8 i686 livecd iso image, then newlive.iso will be slightly modified to support LiveUSB persistence. To use LiveUSB persistence, get the livecd-iso-to-disk script from the /LiveOS/ subdirectory on the iso (as normal), and invoke it as normal, but add an argument of --overlay-size-mb 128 to create a 128MB persistence file on the resulting LiveUSB. Really, you'll have more fun if you make it a 1024MB persistence file on a 2G LiveUSB. You can download the latest release of VirOS (in .tgz/.srpm/.rpm) here http://filteredperception.org/downloads/viros-0.5.20080111/ and if you'd rather not test my software, but just check out the official f8 livecd patched to support the feature, look here http://filteredperception.org/downloads/overlay/20080111/ I'll omit the details on xdelta patching, as they were in a prior mail, and to highlight the fact that this is still all very alpha/developer quality stuff. I have not done a complete code review myself, therefore it is too early for me to even ask others to do a code review. But having finally ironed out the last known bugs with the persistence feature, and having put together a reasonable rpm of the rest of the stuff, I am actually pretty pleased with how it's shaping up.... Bug reports are welcome and expected... Enjoy... -dmc

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RFC: my plans for improving LiveCD boot speed with smart device mapper caching
by Douglas McClendon 11 Jan '08

11 Jan '08

FYI- I've somewhat cryptically alluded to grand plans for improving LiveCD boot speed on this list in the past. While I'm still quite some time from having the time to implement it, I did outline my method on squashfs-devel yesterday. The basic idea is to replace all the disk seeks for file accesses during boot with a single long seek-less read, using a devicemapper trick which I've never seen used anywhere else, but which I'm 99.9% sure will work. I will back off my prior predictions of halving boot time, but I still think 15%-25% speedup will happen... http://sourceforge.net/mailarchive/forum.php?thread_name=d872d960801070247i… -dmc

1 0

Inheritance in kickstart and package removals
by Rahul Sundaram 07 Jan '08

07 Jan '08

Hi, I am working on a Xfce spin of Fedora available at http://sundaram.fedorapeople.org/livecd-fedora-8-xfce.ksa which as you can see inherits the base desktop kickstart file which removes wget. I have been trying to add it back in my kickstart file but wget is not in the image created by livecd-creator. I have been able to reproduce this consistently. Seth Vidal on IRC commented that urlgrabber would serve the same purpose as wget and of course curl is also there but regardless of value of wget in the Xfce spin, this seems to be a bug that I can't add back packages that are removed in the base kickstart file I am inheriting from. Comments? Rahul

3 6

Re: [Fedora-livecd-list] persistence testing howto
by Mike Dickson 07 Jan '08

07 Jan '08

Guys, I got a LiveCD + Persistence usb drive running from your scripts, but got I/O errors if I tried to do a yum update. Before that I was able to vi test.txt and put some text in and it survived a reboot. What can I do to address the i/o errors? MikeD "Messsage from syslogd@localhost at kernel: journal commit i/o error" On Wed, 2008-01-02 at 04:07 -0800, Mike Dickson wrote: > I have some time now. I am attempting this tonight and tomorrow. I > will let you know. > > MikeD >

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[Fedora-livecd-list]
by Thiago Braga Santana 03 Jan '08

03 Jan '08

Hello List. I customizing the livecd of Fedora 6 you developed. I urgently need to understand two parameters of the kernel. "LIVEINST" and "LIVEIMG", must fully understand the usefulness of each. Recently I discovered a problem with the livecd, a problem which affects the software in the package lvm2, when do the livecd with bootparam "liveimg." This is the error: " /sbin/lvm.static Parse error at byte 996 (line 43) the expected value. Failed to load config file /etc/lvm/lvm.conf " The detail is key: this problem only occurs when livecd run on computers with hard drive-type SATA2. However, the problem does not occur if I use the bootparam "liveist" instead of "liveimg." I need you to help me understand the concept of these two bootparam because I believe I can help you fix this in the livecd CentOS. Please do me respond as soon as possible. Thank you. Thiago Santana

2 1

Trying to build from GIT
by Jeroen van Meeuwen 02 Jan '08

02 Jan '08

Hi, I'm building livecd-tools from the latest code in GIT, but rpmlint complaints like there's no tomorrow: [jmeeuwen@elwood devel]$ rpmlint /var/lib/mock/fedora-8-x86_64/result/livecd-tools-013-1.fc8.x86_64.rpm livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/kickstart.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/errors.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/creator.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/fs.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/yuminst.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/live.py 0644 livecd-tools.x86_64: E: non-executable-script /usr/lib/python2.5/site-packages/imgcreate/__init__.py 0644 livecd-tools.x86_64: W: invalid-license GPL livecd-tools.x86_64: E: no-binary livecd-tools.x86_64: E: only-non-binary-in-usr-lib Could these be fixed at some point in time please? Thanks, in advance. Kind regards, Jeroen van Meeuwen -kanarip

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f8 gripe#2: why did f8's pm-hibernate regress?
by Douglas McClendon 02 Jan '08

02 Jan '08

Can someone tell me if there is anything I can do to de-regress f8's pm-hibernate? What I mean is that it seems like in f7, pm-hibernate saved the kernel buffer/filesystem caches as well as the minimal needed stuff. Now in f8, every time I resume, system performance is crap because everything needs to be read piecemeal from disk into the caches again. My analysis is pure speculation based on my understanding of how you can tune that behaviour with suspend2(tux-on-ice). But it is very noticable and very annoying and very clearly a f7->f8 change. -dmc

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livecd January 2008