| === danjared_ is now known as danjared | ||
| xnox | cyphermox, horum =( | 15:49 |
|---|---|---|
| xnox | i dasd formated the drives, formated the drives / partitions on them. | 15:49 |
| xnox | and now i'm trying to exit the lvm menu and that fails. | 15:50 |
| xnox | d-i is simply stuck in "Starting up the partitioner" | 15:50 |
| xnox | Scanning disks... | 15:50 |
| xnox | 45% | 15:50 |
| xnox | i wonder how i can troubleshoot this, or get it going again. | 15:50 |
| cyphermox | sswitch to another vt? | 15:59 |
| cyphermox | are there multiple vts on s390x? | 16:00 |
| xnox | no vts... i'm installing via ssh | 16:00 |
| xnox | there is syslog. | 16:00 |
| cyphermox | well syslog might give you a clue maybe | 16:00 |
| xnox | i'm blaming 30parted init.d script (part of partman init) | 16:00 |
| xnox | ERROR: unsupported sector size 4096 on /dev/dm-0. | 16:00 |
| xnox | horum. | 16:00 |
| cyphermox | why do you still have a dm-0? | 16:01 |
| cyphermox | I mean, if you want to run dasdfmt outside of parted generally, as a separate step that says something like "Reinitialize the drives", then that step probably should kick lvm hard enough that it forgets everything | 16:03 |
| cyphermox | and then probably udev-reload or whatever the command was | 16:03 |
| cyphermox | update-dev --settle >/dev/null I think | 16:04 |
| cyphermox | right, and maybe not even because in theory when partman starts, partman-lvm is what will pvscan and vgscan, and then vgchange -a | 16:06 |
| cyphermox | which means dd if=/dev/zero some beginning part of the drive might be enough to convince it that there isn't anything | 16:07 |
| cyphermox | xnox: have you started a debian vm after all, I'm curious about the udev rules that might be there | 16:09 |
| xnox | digging into this | 16:10 |
| xnox | it seems like open_dialog DUMP is called by 35dump script | 16:10 |
| xnox | and it tries to "dump" the dasd drive... and gets stuck | 16:10 |
| cyphermox | ah | 16:10 |
| xnox | is that command send to ... parted? | 16:10 |
| cyphermox | yes | 16:10 |
| xnox | how do i do that just from shell without e.g. all of the d-i and partman in the way? | 16:11 |
| xnox | parted -> not found. | 16:11 |
| xnox | horum | 16:11 |
| cyphermox | anna-install parted-udeb | 16:11 |
| cyphermox | partman uses libparted to do magic. | 16:11 |
| cyphermox | ah, yeah, parted must barf at dumping the partition table somehow | 16:12 |
| cyphermox | there ought to be some other message in syslog before that | 16:12 |
| cyphermox | or it's just the dm device that makes things ugly | 16:13 |
| xnox | hm, DUMP is not a parted command, now is it.... | 16:15 |
| xnox | parted can print all the devices just fine. | 16:16 |
| xnox | aha | 16:17 |
| cjwatson | xnox: partman-command may help you | 16:17 |
| cjwatson | I got bored of debugging that stuff being hard a while back, and wrote a helper | 16:18 |
| xnox | hehe | 16:18 |
| xnox | http://paste.ubuntu.com/14867242/ | 16:18 |
| cjwatson | xnox: parted_server.c in partman-base is what implements those commands | 16:18 |
| xnox | cjwatson, cyphermox ^ that can't be good, right? | 16:18 |
| cjwatson | eh, maybe? depends if that's actually what it's hitting | 16:18 |
| cjwatson | check /var/log/partman to see if you see the same thing there | 16:18 |
| xnox | # partman-command DUMP | 16:19 |
| xnox | /bin/partman-command: line 42: can't open /var/lib/partman/outfifo: no such file | 16:19 |
| cjwatson | parted_server has to be actually running at the time | 16:20 |
| xnox | ah | 16:20 |
| xnox | ok | 16:20 |
| cjwatson | if it's crashed then check /var/log/partman first | 16:20 |
| xnox | cyphermox, well, i purged lvms, now trying to install with lvms =) | 16:22 |
| xnox | today is not my day | 16:26 |
| xnox | http://paste.ubuntu.com/14867293/ | 16:26 |
| cjwatson | that's probably the same thing | 16:26 |
| cjwatson | what does /var/log/partman say? | 16:26 |
| xnox | not much. | 16:28 |
| xnox | http://paste.ubuntu.com/14867315/ | 16:28 |
| xnox | as if life is good. | 16:28 |
| cjwatson | OK, so that probably is the same thing | 16:29 |
| xnox | horum. | 16:29 |
| * xnox ponders how to reproduce this bug somewhere where i have gdb | 16:29 | |
| xnox | hmmm.... http://comments.gmane.org/gmane.comp.gnu.parted.devel/4367 | 16:30 |
| cjwatson | you could brutally shove gdb and the relevant bits and pieces of libraries and debug symbols into the installer env | 16:31 |
| cjwatson | wouldn't be the first time I've done that :) | 16:31 |
| cjwatson | xnox: pretty sure I already cherry-picked descendants of those patches | 16:32 |
| cjwatson | anyway, there's enough code that getting gdb in place is probably easier than guessing | 16:33 |
| xnox | yeah | 16:35 |
| xnox | hahaha, shove gdb into installer environment =) | 16:36 |
| xnox | anna-install gdb-udeb did not work. I shall ask doko to fix that =) | 16:37 |
| cjwatson | don't do that :) | 16:38 |
| cjwatson | anna-install openssh-client-udeb, scp the stuff you need from somewhere | 16:38 |
| xnox | i have ssh, yes. | 16:38 |
| xnox | launchpad timing out filing a bug... | 16:51 |
| xnox | (Error ID: OOPS-ffb6abd15e291af596278d1a8b6a07ac) | 16:51 |
| xnox | cjwatson, cyphermox - well that's a first for me =) | 16:54 |
| xnox | divide by zero! | 16:54 |
| cyphermox | cjwatson: ah, that's what you meant by *brutally* shoving things in the installer environment :) | 16:55 |
| xnox | https://bugs.launchpad.net/ubuntu/+source/parted/+bug/1541510 | 16:56 |
| cyphermox | well, I'd start by applying the patches you pointed out earlier | 17:01 |
| cyphermox | at least one hunk of [PATCH 2/2] isn't there. | 17:01 |
| cyphermox | or you know, whatever ended up being committed from those emails.. | 17:02 |
| xnox | well, i can clone the parted trunk, rebuild it and retest with that. | 17:08 |
| xnox | cause if parted master is also broke, there is nothing to cherrypick | 17:09 |
| xnox | looking at the code. | 17:09 |
| xnox | it looks as if there is a simple ioctl performed that should return number of heads and doesnt | 17:09 |
| cyphermox | right, and the last few commits change what APIs are used to find out disk geometry. | 17:16 |
| cyphermox | heh, nevermind, we indeed do have at least some of this in the parted package | 17:20 |
| cjwatson | cyphermox: isn't there> you mean the bit that makes ped_device_like_dasd part of the API? That was explicitly rejected and isn't necessary | 17:21 |
| cjwatson | the LP OOPS above is a not uncommon but transient problem | 17:22 |
| cyphermox | cjwatson: nah, I was looking at libparted/labels/dasd.c and failed to notice the patches weren't applied. | 17:25 |
| cjwatson | I think you're going to see the same thing upstream | 17:28 |
| cjwatson | The more generic _device_probe_geometry has explicit checks for getting non-zero sectors and heads back from HDIO_GETGEO | 17:30 |
| cjwatson | and if it doesn't get them it uses defaults | 17:30 |
| cjwatson | But fdasd_get_geometry doesn't have quite the same checks around its use of HDIO_GETGEO | 17:30 |
| cjwatson | You ought to compare with the relevant kernel code, but my suspicion is that you don't get a sensible geometry back for an LV | 17:31 |
| cjwatson | This is all inside dasd_probe, and an LV isn't really a DASD | 17:32 |
| cjwatson | So one thing I'd try is making that situation be an error from fdasd_get_geometry and seeing if that behaves reasonably | 17:33 |
| cjwatson | Something like http://paste.ubuntu.com/14868640/ maybe? | 17:34 |
| cjwatson | Ew is that file really tabstop=4? Anyway | 17:35 |
| cjwatson | xnox: ^- suggestions above for you BTW | 18:03 |
| xnox | horum, ok. | 18:05 |
| xnox | cjwatson, i was like throwing SIGFPE is not nice for a library =) http://paste.ubuntu.com/14869013/ | 18:07 |
| xnox | also library functions that have "void" return signature are also not nice. | 18:08 |
| xnox | xnox@devac03:~$ sudo parted /dev/mapper/new-lvol0 | 18:11 |
| xnox | GNU Parted 3.2 | 18:11 |
| xnox | Using /dev/mapper/new-lvol0 | 18:11 |
| xnox | Welcome to GNU Parted! Type 'help' to view a list of commands. | 18:11 |
| xnox | (parted) print | 18:11 |
| xnox | BUG: trk is zero in vtoc_set_freespace call | 18:11 |
| xnox | BUG: trk is zero in vtoc_set_freespace call | 18:11 |
| xnox | Model: Linux device-mapper (linear) (dm) | 18:11 |
| xnox | Disk /dev/mapper/new-lvol0: 2097MB | 18:11 |
| xnox | Sector size (logical/physical): 4096B/4096B | 18:11 |
| xnox | Partition Table: dasd | 18:11 |
| xnox | Disk Flags: | 18:11 |
| xnox | Number Start End Size File system Flags | 18:11 |
| xnox | nicer.... | 18:11 |
| xnox | although, people really should not be trying to partition a logical volume, but meh, libvirt and openstack have other ideas.... | 18:12 |
| cjwatson | xnox: I think that patch is a mistake. | 18:35 |
| cjwatson | xnox: It should be using some different probing method that isn't DASD in this case. | 18:36 |
| cjwatson | xnox: Can you try my patch above? | 18:36 |
| xnox | sure. | 18:36 |
| cjwatson | An LV is not a DASD and so the attempt to probe it as dasd ought to fail | 18:36 |
| cjwatson | IMO anyway | 18:36 |
| xnox | i thought that all the probing patches committed parted were specifically to do that, e.g. regardless of upper layers keep probing until one gets down to dasd.... | 18:37 |
| xnox | or so i read the mailing list thread. | 18:37 |
| cjwatson | Maybe it needs to be adjusted at some other level (as well?) then | 18:38 |
| xnox | cjwatson, with just your patch, without mine, i get: | 18:44 |
| xnox | Error: FPE_INTDIV (Integer: divide by zero) | 18:44 |
| xnox | let me rebuild without stripping all the debug symbols, and run it in gdb to check where it exploades now. | 18:44 |
| xnox | same places... same bug... | 18:51 |
| xnox | i'm guessing fdasd_error() doesn't really do anything, and e.g. a goto error is needed too to go and do something else. | 18:51 |
| cjwatson | xnox: Yeah, maybe details need to be tweaked. I still think this basic approach is closer to what you want than trying to make dasd struggle on in this mode | 20:05 |
| xnox | ok. | 20:06 |
| xnox | this thing kind of derailed my goal to install three zvms with lvm2 and like do a juju environment on them. | 20:06 |
| xnox | *sigh* | 20:06 |
| xnox | cjwatson, actually i agree with you. that code is about e.g. finding dasd exposed via virtio. not about lvm. these are not the drives parted is looking for. | 20:24 |
| === zequence_ is now known as zequence | ||
| Ruby_Rocks_007 | HI | 22:55 |
| Ruby_Rocks_007 | any one active now? | 22:55 |
| Ruby_Rocks_007 | :) | 22:55 |
| cyphermox | Ruby_Rocks_007: there's mostly always someone around, you should just ask your question and stay around, waiting for someone to answer :) | 22:59 |
| cyphermox | (as per topic) | 22:59 |
| Ruby_Rocks_007 | Sure, | 23:00 |
| Ruby_Rocks_007 | My question is: how can I write a shell script, and ask preseed to call it? | 23:01 |
| Ruby_Rocks_007 | my problem is: I have a SSD drive detected behind mechanical disk, | 23:01 |
| Ruby_Rocks_007 | but my OS needs to be installed onto SSD drive (detected as sdm instead of sda), | 23:02 |
| Ruby_Rocks_007 | how can I notify preseed to put OS on sdm, or sdy (if other 24 mechanical disks iinstalled), instead of sda? | 23:02 |
| cyphermox | there's a preseed you can set to pick the right drive, except you'd tell it /dev/sdm, or /dev/sdy, and it will use that drive, whatever it is | 23:04 |
| cyphermox | if you need more logic, then I would look into https://www.debian.org/releases/stable/i386/apbs05.html.en | 23:04 |
| cyphermox | it shows how you can preseed things as an early_command, or how to include another preseed file, or even run a script to set the debconf values. | 23:05 |
| Ruby_Rocks_007 | I see your point, this company have close to 10 diff hardware combinations, | 23:06 |
| Ruby_Rocks_007 | it’ll be great if preseed can call my shell to dynamically pick up the SSD drive. :) | 23:06 |
| Ruby_Rocks_007 | I can not use a fixed one, say, sda, sdm, sdy, blah, that will be tedious and error-prone, I assume. | 23:07 |
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