| smartboyhw | cjwatson, are you off today? I might propose another change...... | 08:56 |
|---|---|---|
| cjwatson | smartboyhw: feel free to propose it, but it's Saturday, I'm sure pestering me about it can wait until it isn't the weekend? | 09:28 |
| smartboyhw | cjwatson or others: Please pay sometime to look into https://code.launchpad.net/~smartboyhw/wubi/bug-1080090/+merge/134776 | 15:23 |
| ynniv | Does anyone have a working preseed for a distro served by old-releases.ubuntu.com? | 22:32 |
| ynniv | I am trying to preseed ubuntu 7.10, but debconf seems to ignore "choose-mirror-bin mirror/http/hostname string old-releases.ubuntu.com" | 22:32 |
| cjwatson | ynniv: "choose-mirror-bin" should be "d-i" there, but that error wouldn't break installation, just leave some cruft on the installed system | 22:51 |
| cjwatson | ynniv: two possible things you might have done wrong: | 22:51 |
| cjwatson | ynniv: 1) you might be missing "d-i mirror/country string enter information manually" (it's "manual" in >=8.04, but 7.10 required the cumbersome "enter information manually") | 22:52 |
| cjwatson | ynniv: 2) I was going to have another possibility here but I've realised it's a non-issue :) | 22:54 |
| ynniv | hah. ok, does https://gist.github.com/4101032 look like an appropriate chunk of preseed? | 22:54 |
| cjwatson | seems roughly plausible | 22:57 |
| cjwatson | if it still doesn't work, extract and post the syslog after an installation attempt with the DEBCONF_DEBUG=developer boot parameter | 22:57 |
| ynniv | I'll give it a whirl. That was extremely helpful, thank you. | 23:00 |
| cjwatson | you're welcome | 23:00 |
| bg | Afternoon, folks. I'm trying to track down anything related to the build process for the netboot kernel and initrd. Anyone know if its documented anywhere? | 23:19 |
| cjwatson | bg: It's all in the debian-installer source package | 23:20 |
| cjwatson | Note that the kernel is just the regular kernel | 23:20 |
| cjwatson | Building the debian-installer source package in the standard way produces a variety of installer images including the netboot ones | 23:21 |
| bg | Awesome, thanks for the lead. | 23:21 |
| cjwatson | You can type 'make' in the build/ subdirectory therein to be offered a list of make targets that build single images rather than the whole lot (which takes a while) | 23:22 |
| bg | I'm knee deep in trying to make network installs work with 12.04 on UEFI hardware. It is a very dark place. | 23:22 |
| cjwatson | Yeah, there's little prospect of that yet. | 23:23 |
| cjwatson | It's not even clear that it works on 12.10; Steve tells me that he ran into some as-yet-undiagnosed bug in GRUB's tftp driver when he tried. | 23:23 |
| bg | I've got a flimsy setup that should work for our very limited deployment need, but it is not pretty. | 23:24 |
| cjwatson | What boot loader are you using - or are you launching the kernel directly somehow? | 23:25 |
| bg | UEFI grabs iPXE over TFTP (for fancy menus, other OSes, etc). iPXE downloads a grub binary with an embedded kernel+initrd. | 23:26 |
| bg | Using the casper vmlinuz and initrd gets me into a pretty functional state with console, but the netinst bits don't include the i915 driver, and vesafb doesn't work under UEFI | 23:27 |
| cjwatson | Right, so you don't have to rely on GRUB's networking drivers, which in any case weren't anything like sufficient in 12.04 | 23:29 |
| bg | Even in upstream, the efinet http and tftp stuff exhibits mysterious hangs when attempting to download a kernel/initrd | 23:30 |
| cjwatson | Indeed, that was the bug I was alluding to above | 23:30 |
| cjwatson | Perhaps try efifb rather than the i915 driver? It's simpler | 23:30 |
| bg | That's one of the things I'd like to try, but it's missing from the casper initrd so it brought me to the same conclusion: I need to build my own. | 23:32 |
| bg | (and that's underway! thanks again for the tip) | 23:32 |
| cjwatson | Yeah, though if you want netboot then surely you don't mean the casper initrd long-term? | 23:32 |
| cjwatson | Unless you're netbooting the live image in which case the information above is inaccurate | 23:32 |
| bg | I was only toying with the casper bits because I knew they worked when installing from USB | 23:32 |
| cjwatson | OK | 23:33 |
| cjwatson | To be clear, debian-installer builds the images in http://archive.ubuntu.com/ubuntu/dists/precise/main/installer-amd64/current/images/netboot/ | 23:33 |
| cjwatson | (among others) | 23:33 |
| bg | right, which is exactly the stuff we're using for vanilla PXE deployment | 23:35 |
| bg | this EFI twist has been a big hurdle. | 23:35 |
| cjwatson | Tell me about it | 23:36 |
| bg | I'm curious to see how the quantal backport kernel could make things even more complicated! e.g. in 6 months when another round of new hardware shows up that requires 3.5, we'll somehow need to use the backport kernel to install 12.04. | 23:36 |
| cjwatson | Actually the next debian-installer image set in precise will include images built using the quantal kernel | 23:37 |
| cjwatson | As an option | 23:37 |
| bg | Oh, that's good to hear | 23:37 |
| cjwatson | It's needed for all the secure boot stuff | 23:37 |
| bg | I'm plugging my ears on that topic. Things are complicated enough without introducing signing at this point. | 23:38 |
| cjwatson | Yeah, don't introduce it if you don't have to | 23:38 |
| cjwatson | Unfortunately I only got to plug my ears for just so long | 23:39 |
| bg | Has the signing infra been a nightmare? | 23:39 |
| cjwatson | Moderately | 23:39 |
| cjwatson | And of course new and exciting firmware bugs | 23:41 |
| bg | re: your comment before about the netboot kernel being standard, does it just reuse the -generic .config? | 23:44 |
| cjwatson | It literally copies the kernel | 23:45 |
| cjwatson | No point in us rebuilding it for the installer images | 23:45 |
| cjwatson | And yeah, for amd64 it's the -generic kernel | 23:46 |
| bg | works for me! | 23:46 |
| cjwatson | You might possibly find http://wiki.debian.org/DebianInstaller/Modify/CustomKernel helpful, though you'll need to substitute heavily for Ubuntu differences | 23:46 |
| cjwatson | Hopefully you don't actually need to rebuild the kernel and you can skip all that and the localudebs bits | 23:47 |
| cjwatson | Well, providing that the kernel udebs include the modules you need | 23:47 |
| cjwatson | If not then you'll have to glue that in | 23:47 |
| cjwatson | In extremis there are various tricks in the d-i build system for adding individual files - see e.g. build/README | 23:48 |
| cjwatson | For a one-off that may be rather quicker | 23:49 |
| cjwatson | Anyway, must go ... | 23:49 |
| bg | Thanks so much for the help | 23:49 |
| cjwatson | Good luck :-) | 23:49 |
| bg | Frankly, given how much cjwatson@ I see on bugs/lists, you're a machine. | 23:49 |
| bg | I'd be lying if I said I hadn't poked in here looking for you specifically. | 23:49 |
| cjwatson | Heh, s/machine/insomniac/ ... | 23:52 |
| infinity | cjwatson: There's a difference? | 23:53 |
| cjwatson | You can switch machines off | 23:54 |
| infinity | I find a frying pan to the head can work wonders. | 23:54 |
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