| MTecknology | Are there any issues with getting a generic (torvalds branch) kernel to work with 10.04? | 03:12 |
|---|---|---|
| lifeless | shouldn't be - you can grab the autobuilt upstream kernels after all :) | 03:14 |
| MTecknology | lifeless: I was just trying to figure out why when I use it it can't find my root partition. I musta screwed up. I checked lscpi -k and everything is set right there. | 03:16 |
| MTecknology | lifeless: I was trying to mess around with 2.6.34-rc3 | 03:16 |
| MTecknology | I wish I had my generic .config I use with almost everything and it almost always works... | 03:17 |
| MTecknology | lifeless: thanks- I just wanted to make sure there wasn't anything funky that might be messing me up | 03:18 |
| joaopinto | hi | 14:16 |
| joaopinto | does an hang where the sysrq does not respond usually means a kernel freeze ? | 14:16 |
| KIAaze | yes, I think so. But I'm no kernel dev. | 14:25 |
| KIAaze | http://www.av8n.com/computer/htm/kernel-lockup.htm | 14:25 |
| KIAaze | I've been having such lockups when plugging in a USB stick: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/514485 | 14:26 |
| ubot3 | Malone bug 514485 in linux "kernel lockup when plugging in USB stick" [Undecided,New] | 14:26 |
| KIAaze | switched to Gnome now and haven't been able to reproduce it yet. | 14:27 |
| === yofel_ is now known as yofel | ||
| MTecknology | I'm lost. I use the exact same config as what's in the generic kernel, but i still get a kernel panic on boot and an error about not being able to find sda2 (root=/dev/sda2) | 21:34 |
| * abogani waves | 21:41 | |
| abogani | I'm looking for sponsors: https://wiki.ubuntu.com/AlessioIgorBogani/linux-rtPPUApplication | 21:41 |
| abogani | Thanks! | 21:41 |
| hyperair | MTecknology: got initrd? | 21:42 |
| MTecknology | hyperair: is that a kernel option that I'm not finding? | 21:45 |
| abogani | MTecknology: No it is *mandatory* kernel installation step. | 21:46 |
| MTecknology | abogani: I've been taking the easy route - make all modules_install install && update-grub2 | 21:47 |
| abogani | MTecknology: Not enough | 21:47 |
| MTecknology | it has been for everything up until 10.04 | 21:47 |
| MTecknology | what changed? | 21:47 |
| abogani | MTecknology: Some modules are modularized for improve speed at boot | 21:48 |
| abogani | MTecknology: Could you see into /boot directory if you have the initrd.img-* file for you custom kernel? | 21:50 |
| MTecknology | there isn't | 21:50 |
| MTecknology | so I need to make the initrd.img* file | 21:51 |
| abogani | MTecknology: I use this: mkinitramfs -o boot/initrd.img-$VERSION $VERSION | 21:51 |
| MTecknology | Is there any way to see which modules are in the .img? | 21:54 |
| MTecknology | abogani: Is there any way to see which modules are in the .img? Or anything that says which modules were put in there to decrease boot time? | 22:01 |
| abogani | MTecknology: You should gunzip it and extract contents with cpio. | 22:02 |
| hyperair | MTecknology: make-kpkg --initrd | 22:07 |
| hyperair | i think there was something else you had to do | 22:08 |
| hyperair | Sarvatt: ? | 22:08 |
| abogani | hyperair: AFAIK make-kpkg isn't supported on Ubuntu. | 22:08 |
| hyperair | it isn't? | 22:08 |
| * hyperair has been using it all this time =\ | 22:08 | |
| MTecknology | I thought initrd was just a collection of modules.. | 22:09 |
| hyperair | nah | 22:09 |
| MTecknology | I was hoping I could just change things form =m to =y and not need to worry about initrd.img-* | 22:09 |
| hyperair | initrd sets up things | 22:09 |
| MTecknology | I guess not | 22:09 |
| hyperair | including usplash in karmic | 22:09 |
| hyperair | and udev | 22:10 |
| abogani | hyperair is right. | 22:10 |
| hyperair | there's a devfs option in the kernel you could use to avoid initrd though | 22:10 |
| MTecknology | I don't see devfs in there - or does it have a different name? | 22:11 |
| hyperair | i forgot | 22:11 |
| hyperair | CONFIG_DEVTMPFS | 22:11 |
| abogani | No CONFIG_BLK_DEV_INITRD | 22:12 |
| hyperair | heh? | 22:12 |
| hyperair | what's that? | 22:12 |
| MTecknology | Prompt: Initial RAM filesystem and RAM disk (initramfs/initrd) support | 22:12 |
| abogani | hyperair: Are you also in -motu? | 22:13 |
| MTecknology | hyperair: instead of making you look it up :) | 22:13 |
| hyperair | abogani: yes i am. | 22:13 |
| hyperair | abogani: why? | 22:13 |
| MTecknology | so if i disable those options it won't look for initrd? | 22:13 |
| abogani | hyperair: I recall your suggestions about my doubts about packaging so I would want thanks to you again. | 22:13 |
| hyperair | er i have no idea | 22:13 |
| hyperair | O_o | 22:14 |
| * hyperair doesn't remember.. | 22:14 | |
| hyperair | but yw anyway =) | 22:14 |
| abogani | MTecknology: Don't try it. You waste your time no one in Ubuntu have tested that way. | 22:14 |
| MTecknology | abogani: I can try it and then somebody will have :P | 22:15 |
| MTecknology | abogani: from looking at that - I could just cp initrd.img-2.6.32-19-generic initrd.img-2.6.34-rc3 - right? | 22:15 |
| * hyperair facepalms | 22:16 | |
| hyperair | that won't work. | 22:16 |
| MTecknology | hyperair: I'm sorry :( Don't hurt yourself over me | 22:16 |
| MTecknology | hyperair: I'm just a novice noob that likes mucking with things that have no business being mucked with | 22:17 |
| hyperair | heh | 22:17 |
| hyperair | well just use the initrd | 22:18 |
| hyperair | what are you trying to achieve by dropping it? | 22:18 |
| MTecknology | nothing, I was just wondering if I could avoid making it by copying it | 22:19 |
| hyperair | well, you know how kernel modules can't be used in another kernel? | 22:20 |
| hyperair | initrds contain kernel modules, naturally they can't be used in another kernel | 22:21 |
| hyperair | if you have no modules at all, then maybe it can be copied | 22:21 |
| MTecknology | oh | 22:21 |
| hyperair | but anyway initrd is basically a temporary root | 22:21 |
| hyperair | that bootstraps everything and then moves to the real root | 22:21 |
| MTecknology | what benefits are there in that? | 22:22 |
| MTecknology | hyperair: I'm not trying to say it shouldn't be there - I'm jsut curious what it offers | 22:23 |
| hyperair | MTecknology: well, for stuff like lvm and cryptostuff, the kernel cannot boot directly using those as some setup needs to be done in userspace. | 22:34 |
| hyperair | MTecknology: also, i'm sure you know that you can't fsck a filesystem while it's mounted | 22:34 |
| MTecknology | ya | 22:35 |
| MTecknology | ok, that makes sense | 22:35 |
| MTecknology | hyperair: so you could have your entire drive on one lvm volume and boot from it wtih initrd? | 22:37 |
| hyperair | MTecknology: right. but you need /boot in ext4/ext3 or something supported by grub, for example | 22:45 |
| hyperair | as long as the initrd can be supplied | 22:45 |
| MTecknology | hyperair: cool | 22:47 |
| MTecknology | hyperair: heh - I tried without initrd and the only issue with that /dev/mapper/cryptswap1 and lvm volumes won't mount, nee to run mount /home, mount /misc, etc. manually and there's no errors | 22:58 |
| hyperair | heh, see? =p | 22:58 |
| hyperair | MTecknology: besides, i think ubuntu's boot process is engineered around the fact that you have an initrd, so it might not work properly if you don't. | 22:59 |
| MTecknology | hyperair: I wouldn't even use lvm if I didn't have to deal with having windows on the drive | 23:03 |
| MTecknology | hyperair: nifty stuff | 23:17 |
| joaopinto | sysrq not responding indicates a kernel hang ? | 23:38 |
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