[00:04] An older server was depleting entropy, I had to run haveged on it, a newer server doesn't have a problem, just wondering if the entropy seed was implemented on hardware or software. [00:16] BraveheartBSD: some modern CPUs have instruction that gives fast random. Modern kernels make use of that (when available), among other sources of entropy [00:20] sdeziel, thanks. I'm using an old Dell T610 as a backup, it's now working fine. [00:29] BraveheartBSD: FWIW, use of haveged is questionable. See: https://lwn.net/Articles/525459/ [00:29] from what I could find, this T610 uses an old CPU (Nehalem) which AFAICT, doesn't have the RDRAND instruction that more modern CPUs have [00:30] Software based entropy is impossible. You have to have hardware involved somehow. [00:30] https://systemd.io/RANDOM_SEEDS/ is also an interesting quick read [00:31] sdeziel: o/ while you're here, did you report a failure with ubuntu-advantage-tools and a FetchFailedException somewhere? IIRC you did, but I can't find it any more. [00:32] rbasak: no, I haven't got to reporting it yet, sorry [00:34] rbasak: doing now [00:36] Thanks! [00:43] https://bugs.launchpad.net/ubuntu/+source/ubuntu-advantage-tools/+bug/2004130 [00:43] -ubottu:#ubuntu-server- Launchpad bug 2004130 in ubuntu-advantage-tools (Ubuntu) "esm-cache.service throw apt.cache.FetchFailedException when connecting to https://esm.ubuntu.com fails" [Undecided, New] [00:44] rbasak, sdeziel That doesnt help, lol. The previous OS on the Dell ran fine, no entropy related errors at all. I had to change due to ZFS incompatabilty with the PERC 700. Ubuntu 22.04.1 first bought up the error, or rather, the monitoring app did. [00:45] I'll keep looking into it [00:48] something might be using more random numbers... [00:48] sdeziel: thanks! [00:49] BraveheartBSD: what's the error? That your monitoring app complains? Or is there something that's actually stalling or not working? [00:52] Netdata complains the entropy is depleted, and recommends running haveged, so quite possibly, netdata itself is depleteing the entropy pool. [00:53] The error has no affect on the server operation. [01:02] BraveheartBSD: I think Netdata is slightly wrong/misleading here, see https://github.com/netdata/netdata/issues/2510 [01:02] -ubottu:#ubuntu-server- Issue 2510 in netdata/netdata "Warning about low entropy isn't completely correct" [Closed] [01:04] AFAIK, on 22.04 kernels, no random providing interface is blocking anymore (except a brief time window during bootup where /dev/random can block, IIRC) [01:06] that's not always been true though as /dev/random was known to block when entropy would "run low". That would then cause various issues with services needing entropy like Apache being unable to handle HTTPS connections for example. [01:12] I'm curious to know whether the report of depleted entropy is resulting from just after boot, or if it's low on an ongoing basis. [01:12] https://lwn.net/Articles/884875/ is probably what I'm quoting/remembering (badly) [01:17] It runs for a while, netdata displays a graph that shows entropy counting down, then posts the error. I used something different on FreeBSD 13. I'll disable netdata on this server and see what transpires. [01:18] It's starting to look like Netdata is the problem [01:54] sounds like it might be panicking too early === chris14_ is now known as chris14 [03:52] rbasak: I don't see how it's relevant. If subiquity can install one machine why not use it to install more than one machine? [04:26] I don't need subiquity to manage any machines, I use puppet for that. I am just trying to get subiquity to update the target OS and it's crashing without any error message that I can find. === PeGaSuS is now known as Guest9064 === bbezak0 is now known as bbezak === elastic_dog is now known as Guest5516 [11:48] habys: because you said: [11:48] > I'm guessing in general people (in here|anywhere) aren't managing a fleet of physical machines imaged with ubuntu [11:49] They are, but they use our dedicated solution for that. [11:49] If you don't want to use the solution that everybody else uses, then you're welcome to do that but you're more likely to run into issues. [11:49] But please do submit bug reports! [12:49] thank you, I really want to get this pxe boot working [13:20] I fixed it! It doesn't make sense but it works! [13:22] after failing to run `apt upgrade` or equivalent in `user-data` via `late-commands:\ncurtin in-target --target=/target apt -y upgrade` and not being able to find any reason that it's not working [13:23] I wrote a script to target with printf, chmodded and ran in with curtin and it worked [13:24] I don't understand the crash logs in /var/crash/*.crash, they are absolutely gigantic, and don't even contain the output from the command that causes a crash [13:57] !bug | habys explains filing crash bugs too [13:57] habys explains filing crash bugs too: If you find a bug in Ubuntu or any of its official !flavors, please report it using the command « ubuntu-bug » - See https://help.ubuntu.com/community/ReportingBugs for other ways to report bugs. === Liver-K is now known as Liver_K [15:59] lotuspsychj3: yes, I will file a bug, thanks [16:12] Hi! Could someone ack LP: #2004107 so I can sync nut? I am just dropping a delta that I added a few weeks ago there that got merged in Debian :) [16:12] -ubottu:#ubuntu-server- Launchpad bug 2004107 in nut (Ubuntu) "Sync nut 2.8.0-7 from Debian unstable" [Undecided, Triaged] https://launchpad.net/bugs/2004107 [17:01] Hmm, I must have missed some renewal emails for LP groups at some point, I'm no longer an Ubuntu member/developer. How can I go about getting those restored? [17:02] community council should be able to re-activate you [17:16] No, it's the DMB [17:16] Odd_Bloke: email devel-permissions@ please [17:17] Also see: https://wiki.ubuntu.com/DeveloperMembershipBoard/KnowledgeBase#Accidental_Expiry [18:55] rbasak: Ack, thank you! [19:40] Two questions. Are servers more or less efficient than space heaters at heating a room? Second, if I was given a machine with 512GB of RAM, what could I use it for? [19:40] tetrakist: Probably not as efficient of a space heater, and with that much RAM, I'd turn it into a virtualization server. [19:41] @athos taking a look [19:41] arraybolt3, why wouldn't it be as efficient? where is the electricity going, if not into heat? [19:42] tetrakist: Processing power, I believe. This probably isn't on-topic for this room though, since this room is for support of the Ubuntu Server operating system, and not for info about server hardware. [19:42] arraybolt3, Also, I don't have anything to virtualize. Is there some place for virtualization projects? [19:42] *virtualization project ideas [19:42] arraybolt3, yeah, I'll drop the heater topic, then. [19:44] @athos looks good! yes ack on sync [19:49] is there a tool on the cli i could use to highlight multiple different strings of text on the cli ? [19:49] i know less can do it for 1 string, but i have 3 different strings i'd like to highlight [19:50] as a workaround i could do tmux, split the screen into 3 windows and 1 highlight per window [19:51] xibalba: with less, you can search for a regex like "/(foo|bar)" and all occurrences of `foo` and `bar` would be highlighted [19:51] brilliant [19:51] echo "pattern1 pattern2 pattern3 pattern4" | grep --color -E '^|pattern1|pattern2' [19:51] i need to see some lines above/below the strings [19:52] but i dont know how many linea above/below, so -A -B options in grep wont work [19:52] xibalba: with grep, you can show the surrounding 3 lines with `grep -3` [19:52] ah, sorry replied too quickly [19:52] no worries the less option just worked perfect, thank you sdeziel [19:52] thank you too ravage [19:52] cool [20:36] thanks, bryceh :) [20:39] sync'd === nihe_ is now known as nihe