| infinity | tron103: Define "the latest kernel"? | 00:22 |
|---|---|---|
| Fudge | thanks cyphermox and cjwatson | 01:16 |
| cyphermox | Fudge: np. lemme see if I can find something out quick | 01:23 |
| Fudge | :) | 02:16 |
| cyphermox | there may be a trick, by enabling espeakup as a module early on (you'd need to add things to the command line, or roll your own d-i image) | 02:52 |
| cyphermox | but I found some hints that it might be broken because of kernel changes | 02:52 |
| cyphermox | Fudge: so, the additional command-line entry you'd probably need would be "modules=espeakup-udeb", but it's not shipped on the server CD, so in a current case, at best you'd have to get online somehow through the menus before it would download the udeb | 03:19 |
| cyphermox | so, the answer is most likely that if you want to make this work, for the time being it means building your own ISO if you want espeakup-udeb to be available | 03:20 |
| cyphermox | (or rebuild d-i, making it included in the mini.iso, but that means you'll need to bump the disk size it allows | 03:21 |
| * cyphermox goes to bed | 03:21 | |
| tron103 | I've installed ubuntu-server 14.04 with the 3.16.0-30-generic kernel and a custom network driver that is needed. Is there a way to build an initrd/kernel combo for this version? The downloaded netboot installer is an older version of the kernel and won't accept my kernel modules. | 03:23 |
| Fudge | cyphermox: that is very helpful mate, thank you so much | 03:24 |
| infinity | tron103: There's no way the netboot installer uses an older kernel than that (In fact, I'm looking right now, and it's 3.16.0-45, currently). | 11:20 |
| infinity | tron103: You're building for a kernel that's 7 months old. | 11:21 |
| tron103 | Infinity: My cd ISO installed ubuntu-server 14.04 is at 3.16.0-30-generic, the real problem is that the netinstaller initrd is version 3.13.0-24-generic at http://us.archive.ubuntu.com/ubuntu/dists/trusty/main/installer-amd64/current/images/netboot/netboot.tar.gz | 16:19 |
| cjwatson | you want to use trusty-updates not trusty | 16:20 |
| tron103 | lol | 16:20 |
| tron103 | why is that? | 16:20 |
| cjwatson | trusty is the version released with 14.04 on release day, it doesn't get updated | 16:20 |
| cjwatson | just like the archives, post-release updates go in trusty-updates | 16:20 |
| tron103 | thank you cj, ill keep that in mind | 16:22 |
| tron103 | I ended up finding the kernel-version specific modules and can now bring up the inifiniband interface, but it won't get dhcp for some reason. seems to only see ipv6 | 16:23 |
| tron103 | I could try and rebuild everything with http://us.archive.ubuntu.com/ubuntu/dists/trusty-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/initrd.gz | 16:24 |
| tron103 | wow... the current netboot is at 3.13.0-61-generc | 16:30 |
| tron103 | grrr | 16:30 |
| tron103 | still smaller than my install version | 16:30 |
| infinity | tron103: There are netboot directories for each of 3.13, 3.16, and 3.19 | 16:31 |
| infinity | tron103: http://cdimage.ubuntu.com/netboot/trusty/ | 16:31 |
| tron103 | thank you a bunch for that | 16:32 |
| tron103 | so I have to look at cdimage instead of the archive | 16:32 |
| infinity | tron103: That page links to the archive, it's just nicer than remembering the deep links. | 16:33 |
| tron103 | ah. its something called "vivid"... not just trusty | 16:34 |
| infinity | tron103: 3.16 would be lts-utopic, actually, not lts-vivid. | 16:34 |
| tron103 | right you are :) | 16:35 |
| tron103 | nice. its 3.16.0-45-generic. | 16:41 |
| cjwatson | Not sure the lts-utopic kernel is still supported though, since utopic isn't | 16:42 |
| tron103 | hmm now i wonder if the kernel modules from 3.16.0-30-generic will insert into 3.16.0-45-generic | 16:43 |
| cjwatson | No | 16:44 |
| cjwatson | At least I doubt it, the point of changing the ABI number is that the ABI changed | 16:44 |
| infinity | lts-utopic is supported until 3mo after 16.04 comes out. | 16:44 |
| cjwatson | infinity: oh really? ok | 16:44 |
| infinity | cjwatson: Says so on the handy cdimage/netboot page. :) | 16:45 |
| infinity | So it must be true, cause I wrote it. | 16:45 |
| infinity | *handwave* | 16:45 |
| cjwatson | fair enough | 16:45 |
| infinity | cjwatson: But, basically, we support all the lts-N kernels until the .5 point release, where lts-next-lts becomes the only one supported with a highly-encouraged and annoying upgrade message. | 16:46 |
| tron103 | thats a nope to inserting 3.16.0-30-generic modules into 3.16.0-45-generic | 16:59 |
| tron103 | so my secret way of finding my compiled modules is to google: site:http://packages.ubuntu.com/ ib_addr.ko 3.13.0-24-generic | 17:00 |
| infinity | tron103: Err, wait. What? ib_addr should be included already, why do you need to compile your own? | 17:01 |
| tron103 | ib_addr is not included in any of the netboot initrds ive looked at | 17:02 |
| tron103 | and im not compiling them though, someone else helpfully did it and put it up on packages.ubuntu.com | 17:03 |
| tron103 | I'm merely trying to add them into my netboot so i can bring up ib0 and dhcp it. | 17:04 |
| infinity | tron103: That "someone else" is us. :P | 17:05 |
| tron103 | <3 | 17:06 |
| infinity | tron103: But indeed, infiniband stuff seems to be missing from d-i. Have you filed a bug about your use-case so we can fix it? | 17:06 |
| tron103 | ... no, i just assumed noone cares about infiniband haha | 17:06 |
| tron103 | how do i file? | 17:06 |
| tron103 | if you guys add it, I've been reading in the mellanox documentation that a "specially compiled version of dhclient is needed". tho i'm not sure if that is true since the redhat dracut-based setup was able to np | 17:08 |
| infinity | tron103: "ubuntu-bug linux" and mention something about needing infiniband support in d-i. It might not be something we can fix without some investigation (as you mention, it might be more than just pulling in some modules), but a bug is still nice. | 17:08 |
| infinity | tron103: Perhaps best to hold off on filing the bug until you've proven yourself that adding some modules does or doesn't work, so you have a bit more data for us than just "please fix". | 17:10 |
| tron103 | yeah | 17:10 |
| tron103 | just setting up launchpad for now | 17:10 |
| infinity | tron103: Especially since I think we have exactly two machines with the right hardware to test, and I don't have access to them, so I'd be working slightly blind. :P | 17:10 |
| tron103 | again, i'm able to bring up the interfaces once I load the 10+ modules in the super-specific order | 17:11 |
| tron103 | its just no dhcp | 17:11 |
| tron103 | sigh | 17:11 |
| tron103 | maybe itll work on this new kernel | 17:12 |
| infinity | Bah, who needs DHCP? Kids and your modern whiz-bang gadgets. | 17:13 |
| tron103 | theforeman uses it to provision | 17:13 |
| infinity | (I was being sarcastic) | 17:13 |
| tron103 | thank you for your help tho infinity and cj | 17:13 |
| infinity | apw: Actually, you might know, since Chris seems AFK and you decided to join. :P | 17:16 |
| apw | heh ... i missred the line and alert :) | 17:16 |
| infinity | apw: We have a user here who's trying to do infiniband in d-i which, at the very least, requires a bunch of modules we don't ship in the initrd. | 17:16 |
| infinity | apw: Chris was working with people on that at some point, right? I feel like we also needed userspace changes that we've not yet made, but I have no idea if someone has a checklist of stuff that still needs doing. | 17:17 |
| apw | yeah i think you had the right victom :) | 17:17 |
| apw | i think i think the same as you, but have no details for you | 17:17 |
| infinity | Fair enough. | 17:17 |
| infinity | tron103: So... WIP, no ETA. But I'll poke around to see if it got stalled/forgotten. :P | 17:18 |
| infinity | Would certainly be nice to sort it by 16.04, if feasible. | 17:18 |
| tron103 | jah jah. I'll probably get infiniband support. I'll make sure to post the fix..... somwhere | 17:19 |
| infinity | arges: Oh sure, join now, after I grill Andy on your behalf. | 17:19 |
| infinity | apw: We have a user here who's trying to do infiniband in d-i which, at the very least, requires a bunch of modules we don't ship in the initrd. | 17:19 |
| infinity | apw: Chris was working with people on that at some point, right? I feel like we also needed userspace changes that we've not yet made, but I have no idea if someone has a checklist of stuff that still needs doing. | 17:19 |
| infinity | arges: ^-- s/apw/arges/ | 17:19 |
| arges | infinity: ok let me try to remember which bug this was... | 17:20 |
| infinity | arges: And, to be clear, I think he's doing IPoIB, not using any ethernet emulation layers. | 17:20 |
| infinity | arges: And, AFAIR, pure IB support was still a WIP. | 17:20 |
| tron103 | yes. ipoib is correct | 17:20 |
| infinity | tron103: FWIW, I think doing ethernet or whatever on mellanox cards Just Works, which might be a workaround. Run d-i in ethernet emulation mode, switch to IB post-install. | 17:21 |
| arges | infinity: bug 1469482 | 17:21 |
| infinity | tron103: Though you might still hit the DHCP issue on the installed system. | 17:21 |
| infinity | arges: Oh good, a proper bug. | 17:23 |
| infinity | tron103: You might want to just subscribe to that bug instead of filing a new one. | 17:23 |
| infinity | arges: I suspect there are still userspace changes we need to make too, to enable DHCP over IB. But I guess we'll find out, if someone's actually working on testing this. | 17:23 |
| arges | infinity: yea so tinoco was going to work on that and give some proper information about impact etc. He has access to the hardware which makes it a bit easier for him to confirm | 17:23 |
| infinity | arges: Thanks for the pointer, at any rate. | 17:24 |
| tron103 | subscribed. Thank you arges infinity! | 17:25 |
| arges | no problem | 17:27 |
| tron103 | smh. on the initrd of 3.16.0-45-generic, modprobe ib_ipoib just hangs lol. Guess ill go back to 3.13.0-x | 18:00 |
| tron103 | yes! | 18:13 |
| tron103 | nm I got it | 18:13 |
| tron103 | ib_ipoib doesn't hang when I don't screw with modules.d | 18:13 |
| tron103 | to recap: when using the 3.16.0-45-generic initrd.gz (aka utopic), manually loading the infiniband modules allows me to use dhcp with ipoib | 18:17 |
| tron103 | last question: how in the world do I get my script that loads the modules in the proper order to run at init time before the installer tries to detect my net hardware? | 18:18 |
| tron103 | sorry if thats a super n00b question, I just can't figure it out | 18:18 |
| tron103 | anyone in pacific northwest? I'll get a round | 18:20 |
| tron103 | so how do I properly load my infiniband modules during netboot? I added them to /init but it just gives kernel panic and hangs.... | 21:05 |
| tron103 | (added right before the last line that says exec $init) | 21:06 |
| tron103 | lib/debian-installer[-startup].d/S99loadinfiniband didn't run as well as adding in a line for inittab | 21:07 |
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