- luv-main - luv.asn.au

CentOS 7 Install + new SSD
by Piers Rowan 21 Oct '16

21 Oct '16

Hi there, I am doing a clean install of my personal desktop onto of a new SSD. Initially the system would not boot because of a "HSM Violation" so I disabled GSATA (motherboard fake RAID?) and that got me passed the initial error but now it hangs at : [OK] Mounted Configuration File System I have tried plugging in the SATA drives + yanking their cables but nothing seems to work. Where to next? Thanks P

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making vim work properly - or other editor
by Russell Coker 20 Oct '16

20 Oct '16

I run Debian/Unstable on my laptop because I'm a DD and it helps to test all the new software. The new version of VIM has just been added, and I don't like it. By default it uses it's own copy/paste mechanism and doesn't seem to support the system clipboard. What I want is to have VIM not really know about the system clipboard and just use a middle-button click to paste with my Xterm (Konsole in this case) and have VIM just take the text. Is it possible to do this with the new version of VIM? What are other good programmers editors? I want something that will preserve white-space so it doesn't generate ridiculous diffs (no converting tabs to spaces or spaces to tabs). -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Internode + Nodephone + Asterisk (+FreePBX?)
by Michael Schams 18 Oct '16

18 Oct '16

Hi there, We are planning to switch from a standard phone line to Nodephone VoIP from Internode. I am very keen to test if Asterisk (maybe in combination with FreePBX) is an option for a small team (one trunk, 6 to 8 endpoints, all with various SIP clients). I successfully set up Asterisk 13 and pjsip and FreePBX 13 on a pretty standard Debian 8 box. I suspect the challenges start when it comes to the VoIP SIP details for the trunk. I came across a few forum posts and discussions about the Internode settings, but I wonder if anyone from the LUV community runs such a setup or has some experience with Asterisk and Internode (especially their Nodephone product)? As I pointed out above, we don't have the line yet, so it's more curiosity than a specific problem I want to solve (yet) :-) Any feedback is welcome. Cheers Michael

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Re: How to make systemd more reliable
by Russell Coker 12 Oct '16

12 Oct '16

On Tuesday, 11 October 2016 10:30:01 PM AEDT Craig Sanders via luv-main wrote: > I was rebooting anyway in order to replace a failed SSD on one machine and > convert both of them to root on ZFS. It booted up OK on both, so I made it > the default. If it refrains from sucking badly enough to really piss me off > for a decent length of time, i'll leave it as the default. That's a bold move. While ZFS has been totally reliable in preserving data I have had ongoing problems with filesystems not mounting when they should. I don't trust ZFS to be reliable as a root filesystem, I want my ZFS systems to allow me to login and run "zfs mount -a" if necessary. > (this is, of courtse, one of the reasons I dislike journald. logs should be > plain text, so you can access them without specialised tools. and rsyslogd > wasn't running in the semi-broken recovery mode that systemd dumped me in > after making me wait 1m30s until it finished doing mysterious things > (AFAICT, it was doing nothing except twiddling some stars on screen). I agree that those things need to be improved. There should be a way to get to a root login while the 90 second wait is happening. There should be an easy and obvious way to display those binary logs from the system when it's not running systemd or from another system (IE logs copied from another system). -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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How to make systemd more reliable
by Tim Connors 11 Oct '16

11 Oct '16

Stop using it! And that part is easy, just run NOTIFY_SOCKET=/run/systemd/notify systemd-notify "" in a while 1 loop as an ordinary user. https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet (sorry for the flamebait first line - I know this list is full of systemd fanbois) -- Tim Connors

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Re; System losing network connection(s) after a few hours
by Duncan Roe 06 Oct '16

06 Oct '16

Hi, Did someone mention this syndrome at the last LUV meeting or maybe the one before? Or perhaps it was in a post to the list? Anyway, I had a problem like that on Experts Exchange and eventually the guy solved it himself - there was another system on the network with the same IP address. Hope this helps someone, Cheers ... Duncan. -- Please avoid sending me Word or PowerPoint attachments. See http://www.gnu.org/philosophy/no-word-attachments.html

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Drupal and daylight savings
by Russell Coker 03 Oct '16

03 Oct '16

We have Drupal running the LUV web site which exports events as iCAL which can be imported into Google Calendar for Android phones. But somewhere along the way it gets messed up with daylight savings, so currently my phone is telling me that the next LUV meeting starts at 7:30 when it's really 6:30. Is there anyone who would like to investigate this? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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spam and web security
by Russell Coker 02 Oct '16

02 Oct '16

https://etbe.coker.com.au/2016/10/02/hostile-web-sites/ In a discussion on luv-talk Mark asked about the risks involved with accessing hostile web sites with wget. I wrote the above blog post which hopefully answers most questions in this regard. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Orbital simulation
by Russell Coker 26 Sep '16

26 Sep '16

Is there a good free orbital simulator for Linux? I don't want a game like KSP but a simulation of orbits without much need for fancy graphics. I am wondering what the orbit of a ring would be like (EG a Dyson ring) and whether it's plausible to make such a ring or whether a set of disconnected sattelites in the same orbit is required. -- Sent from my Nexus 6P with K-9 Mail.

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another outage
by Russell Coker 24 Sep '16

24 Sep '16

The virtual machine running the LUV server was killed by the kernel OOM 4 hours ago. I didn't immediately notice because the VM running my Jabber server (which notifies me of system problems) was also killed). When we had the last problem I converted the virtual machines from Xen to KVM. With KVM the VMs are regular Linux processes and they share the same memory as regular processes. So if another process allocates too much RAM then it may cause KVM memory allocation to fail. Also if the entire system runs out of RAM the kernel may stupidly decide to kill the KVM instance instead of something else. I think that part of the problem was that BOINC was configured to use up to 90% of system RAM. That was an OK setting for a Xen server where the Dom0 had nothing of note running other than BOINC and the virtual machines had RAM reserved. When running KVM this wasn't a suitable setting. I've configured BOINC to only use 40% of RAM and increased swap size. This shouldn't happen again. Also I'm going to move the Jabber server to the Dom0 so that if the DomUs die then I can still get alerts. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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