=== lotuspsychje__ is now known as lotuspsychje [07:25] Good morning [13:41] Hi, I'm getting a libc segfault when pxebooting an install during the disk detection. Does anyone have any ideas? [13:43] brektyme: hard to tell unless you trace something somwhere to see where it faults. otoh, is the booting OS correct for the hardware and architecture? [13:43] yes [13:44] I'm using the kernel and initrd from the mirrors, both amd64 [13:44] which is correct for the hardware [13:48] the kernel and initrd from here: http://archive.ubuntu.com/ubuntu/dists/xenial/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/ [13:49] using the kernel and initrd from here gets past the segfault, but was causing issues with installation later around not being able to find kernel modules: http://archive.ubuntu.com/ubuntu/dists/xenial-updates/main/installer-amd64/current/images/netboot/ubuntu-installer/amd64/ [13:51] although just testing now with the newer kernel and initrd it had no issues with installation. [15:05] has anyone set up drbd on ubuntu servers and use pacemaker to not only ensure who is the master, but also trigger the start of a service? [15:23] DammitJim: drbd works really well (tested on every LTS from 10.04 to 16.04 so far) but not with pacemaker [15:24] sdeziel, how are you using it w/o pacemaker? [15:24] thanks for your info, btw [15:24] man, a lot of people don't like glusterfs and recommend ceph besides drbd [15:24] DammitJim: I'm using it through ganeti (cluster manager) that automates the creation of DRBD volumes that get assigned to QEMU VMs [15:24] DRBD is kind of old school [15:24] holy shnikies! [15:25] but drbd is pretty solid, right? [15:25] oh yeah [15:25] we've been live migrating VMs since many years [15:25] no DRBD issue to report [15:26] how do you share the drbd file system to be accessed by clients? [15:27] like is this something where I can have a process in one of the drbd servers (or on all of them) where the process writes locally to the file system? [15:27] the clients are QEMU processes so all they see is a regular block device like you'd get from a LVM slice [15:27] DammitJim: yes you can have that [15:27] oh, interesting... they see a block device [15:27] so, say 2 drbd servers [15:27] DammitJim: you can see DRBD as RAID1 over the network [15:28] read are served by the local copy if possible with a fallback to the peer [15:28] then the qemu process runs on another server, but can see the RAID1 over the network to access the block device for a new VM? [15:29] we have say /dev/drbd1 on node01 and node02. A given VM running off of node01 uses /dev/drbd1. During a live migration, the QEMU process is "moved" to node02 which already has the same disk content at /dev/drbd1 so only QEMU's memory needs copying [15:30] yikes [15:30] as far as QEMU is concerned it writes to a local disk, end of story [15:30] DRBD does the magic behind the scene [15:31] that's insane [15:31] insane in the good way? [15:31] I think I understand it, but my brain might still be behind processing this [15:31] insanely good, yes [15:31] yes it is [15:36] do you remember if you had to zero out the hard drive before configuring drbd? [15:36] I don't know why I'm running into issues with /dev/sdb1 where it doesn't allow me to add it [15:39] DammitJim: I'd refer you to https://docs.linbit.com/docs/users-guide-8.4/#ch-configure as it's been an eternity that I manually configured a DRBD device manually (ganeti does it all for us) [15:41] DammitJim: unless you have unrelated partitions on sdb, I would recommend to either directly feed /dev/sdb to DRBD or put LVM/etc under it [15:41] partitions make it hard to resize later down the road [15:41] gosh, LVM might make sense in case that someone decides we need more storage [15:41] so, I can even do this with LVM?!!! [15:42] that's what we use [15:42] gosh, I have a lot of work ahead of me [15:42] LVs under and DRBD over [15:42] I need to take baby steps [15:42] I think the LVM way is best even for experimenting [15:43] totally separate question (I need to get to other important stuff)... any recommendations to join a Windows domain? [15:44] I've run into so many issues with samba/kerberos, etc... even though I have a somewhat working solution [15:44] the systems seem to break that funcionality when upgrading from Ubuntu 16 to 18 [22:43] hola [22:43] having some DNS problems [22:43] dig @8.8.8.8 www.google.com - works fine [22:44] dig @192.168.x.x www.google.com - no packets get sent to 192.168.x.x [22:44] wtf [22:45] is that address routable? check with ip route get [22:45] it's on the same subnet [22:47] fml [22:47] nevermind [22:47] found the problem [22:48] I'm a dingus [22:50] ooh, what was it? :) I always like learning new ways to be a dingus ;) [22:51] fearnothing: wrong IP? DNS server not working right? Nonexistent DNS server at address? [22:51] we are curious [22:51] ohai sarnold there be work for you :p [22:52] re-IPed my DNS server 3 months ago didn't I [22:52] hah [22:52] updated all my other hosts' resolv.conf files but forgot this one [22:52] ERR: Wrong IP in DNS nameservers list. [22:52] I've done that too :P [22:53] right, time to do-release-upgrade because I've been a lazy mofo [22:53] fearnothing: oooh that's a good one :) [22:55] (?!.*regex)I've got(?:\s(?[^\s]+)){99} [22:56] yeah for some reason I had used a 32-bit image for my bind server, and that meant I couldn't install something else I needed [22:57] I mean wtf it was only installed 2 years ago where did I even get a 32 bit image [22:57] "a dns server probably doesn't need much address space anyway" [22:57] that's ancient history man