id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,fix_version,see_also 235,Debathena Live CD installs an initrd that enables compcache.,xavid,xavid,"{{{ debathena / livecd / xavid 19:54 ('I want to be the duke of Chicago.`) Jaunty-compatible live cd is pushed and ready for someone to prod on debuild. If someone other than me wants to try the less-trusted-version, http://debathena-livecd-build.xvm/cds/ debathena / livecd / xavid 19:59 ('Sucks-to-be-you-tastic.`) I guess I'll send mail if no one's particularly up for prodding it now. debathena / livecd / andersk 16:53 (Anders Kaseorg) debathena-livecd-convert runs `update-initramfs -u` from inside the live CD chroot. As it turns out, this results in machines installed using the live CD, such as ozok-the-destroyer.mit.edu, to be fuxx0red in various ways (e.g. compcache is enabled). debathena / livecd / broder 16:54 (Evan Broder) Can you put this on the existing Live CD bug, or open a new one? debathena / livecd / jdreed 16:54 (This zephyr does not necessarily reflect A new one, please. The existing one is a bit too general debathena / livecd.d / jdreed 16:55 (This zephyr does not necessarily refle I blame the person who opened the ticket for not picking a better subject line debathena / livecd.d / broder 16:55 (Evan Broder) Haha debathena / livecd / xavid 16:56 (“Werewolves stash their car keys. You don Is that called in the postinst of new kernels? debathena / livecd / andersk 16:56 (Anders Kaseorg) Yes, but you also call it explicitly. debathena / livecd / xavid 16:57 (""Never bite a gift horse in the neck."") Right, but I only started doing that a few days ago, and I didn't think ozok had been reinstalled in that time. debathena / livecd / ezyang 16:57 (Edward Z. Yang) Ozok was reinstalled on April 12th debathena / livecd / xavid 16:58 ('Do rocks chew their cud?') (Previously, the live CD would just be totally broken if there didn't exist a more recent kernel to upgrade to at build time.) debathena / livecd.d / jdreed 17:00 (This zephyr does not necessarily refle Is the LiveCD still a manual build process? Weren't we going to do something about that? debathena / livecd / xavid 17:00 ('Look! It's really happy! And by happy, I can replace the explicit one with a call to mkinitramfs, but getting the postinst to DTRT will be more difficult. debathena / livecd / andersk 17:00 (Anders Kaseorg) Well, how do the Ubuntu guys do it? debathena / livecd.d / xavid 17:01 ('Sucks-to-be-you-tastic.`) The Live CD is automated but still has to be run manually, mostly because we're not past the point where we need to manually test each new iso debathena / livecd / xavid 17:02 (“Can vampires suck blood from rocks?”) No idea? My main reference for this has been https://help.ubuntu.com/community/LiveCDCustomization, which doesn't mention this issue. debathena / livecd / andersk 17:05 (Anders Kaseorg) Hmm, is the official CD’s casper/initrd.gz different from the /boot/initrd.img-2.6.27-11-generic in the filesystem image? debathena / livecd / xavid 17:05 (""Never bite a gift horse in the neck."") I assume so. debathena / livecd / xavid 17:08 ('Sucks-to-be-you-tastic.`) (Based on this new information; before I'd assumed they were the same.) debathena / livecd / andersk 17:10 (Anders Kaseorg) Have you looked at https://help.ubuntu.com/community/LiveCDCustomizationFromScratch ? debathena / livecd / xavid 17:18 (“I like horse-molesting monkeys.”) Hmm; that's worth looking at. debathena / livecd / xavid 17:25 (“Where does the scary glowing man eat the Though, it looks like in those instructions it also uses the initramfs generated by installing a kernel, and has the same initrd in both the actual /boot and the outer /casper, so that doesn't address this. debathena / livecd / xavid 17:25 (“Welcome back cybergirls! and you—honorar What are the symptoms of compcache being enabled? Are you certain that normal Ubuntus installed from a Live CD don't have it enabled? debathena / livecd / ezyang 17:26 (Edward Z. Yang) The easiest way to check is lsmod | grep compcache debathena / livecd / ezyang 17:26 (Edward Z. Yang) One important side-effect is that ramzswap is registered as swap debathena / livecd / ezyang 17:27 (Edward Z. Yang) I know fo sho that it isn't default, since we've had multiple confirm that, while they have the compcache kernel module, it was not active debathena / livecd / xavid 17:27 ('Can you guys tell me at wrapup if I’m th Hmm... well, I'll investigate more when I'm at a VMware and less swamped. debathena / livecd / ezyang 17:28 (Edward Z. Yang) Sounds good. debathena / livecd / xavid 17:28 (“There’s nothing that says we can’t have I certainly don't do anything that would affect that directly. debathena / livecd / andersk 17:34 (Anders Kaseorg) compcache gets enabled if you boot with an initrd that was generated on a system with the casper package installed. debathena / livecd / andersk 17:35 (Anders Kaseorg) > One important side-effect is that ramzswap is registered as swap (This is, in fact, entirely the point, not a side effect.) debathena / livecd / ezyang 17:35 (Edward Z. Yang) sure :-) debathena / livecd / xavid 17:42 (""Angry people are always cooler when they Ok, that should be easy enough to work around, then. }}}",defect,closed,normal,Summer 2009 Deployment,livecd,fixed,,,,