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free E4600 system with broken PSU
by Russell Coker 07 Dec '14

07 Dec '14

I've got a NEC mini-tower system with a E4600 CPU that is free for anyone who has a PSU. I'll bring it to the January meeting if anyone wants it then and I could probably arrange delivery in the CBD if that helps. Otherwise it's e-waste. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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gnome remote access
by James Harper 06 Dec '14

06 Dec '14

I'm testing out a few possibilities for getting 3d games working on thin clients, using the likes of virtualgl. But I can't even get basic XDMCP or VNC working... VNC (via xrdp) says "Oh no! Something has gone wrong", which I think is a gnome message XDMCP keeps giving me obscure messages about needing to authenticate to get a color managed device, and then crashes (gdm on the console too). And then I'm left with heaps of gdm-session-worker processes running... And auth.log and syslog are so full of cryptic error messages that I don't quite know where to start - past experience says that a bunch of error message under gnome are probably normal so I don't know which are important and which are just noise. I'm using Debian Jessie, so obviously some bugs are to be expected... but is anyone using XDMCP with gnome successfully? Thanks James

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debian dummy package
by James Harper 06 Dec '14

06 Dec '14

I am running Debian Jessie and want to install the latest Zabbix server package. It is packaged in zabbix's own repository, as Debian doesn't yet package the latest version. Because the Zabbix provided package is built against Wheezy, it depends on libsnmp15, which isn't available in Jessie. I used equivs to build a dummy package, but libsnmp30 is flagged as breaking libsnmp15, so my dummy package won't install. Any suggestions on how I can get around this, without building from source? I'm hoping I could put some flags in my dummy libsnmp15 package that would allow it to install despite the flags in libsnmp30 that say it can't. I'm reluctant to use override flags for installing because they just come back and bite later on. Thanks James

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A really good speaker set for your Linux HIFI
by zlinw＠mcmedia.com.au 06 Dec '14

06 Dec '14

Now being a glutton for punishment, I once again put my head in the lions mouth... I post this as it may be helpfull, good speakers at a reasonable price being a ____very____ rare species. Now I like a good sounding sound system while I would not call myself a HIFI fanatic. I did ___very___ early on (early 1980's) purchase a top end system. The AMP was and is a Pioneer A88X, still regarded as agood amp. THe speakers though are Magnaplanar MG2A's regarded to this day as amongst the best speakers ever made. Now I have always been looking for something that sounds at least something like the MG2A's, but at a fraction of the price for my PC system. THe other day I recieved delivery of a pair of Microlab Solo 9c amplified speakers. These are big PC speakers being 575mm high by a round 200 wide and 323 deep. The sound though really is good, good tight (not drummy) base and real clear sound imaging. Playing tunes like The cat empire, steal the light and the Skyrim by Pter Hollens and Lindsay Stirling was really soemthing. Now these speakers are __better__ definitely clearer (in my opinion) than Maudio's AV40 or even the BX5a's (both of which I have) but they are only $199 from PCcase gears, a ridiculosly low price for such good speakers. While they are big they go well either side of my 30" 2560x1600 monitor. Speakers highly recommended, do not let the low price fool you, Lindsay

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Hetzner servers for ZFS storage
by Russell Coker 04 Dec '14

04 Dec '14

http://www.hetzner.de/en/hosting/produktmatrix/rootserver-produktmatrix-px I'm looking at migrating an Internet service to the new Hetzner servers. It has to be servers with ECC RAM (the above link contains all suitable options) and is for running ZFS. The storage requirement at the moment is about 1.2TB, it's currently spread across 4 servers (2 with ZFS RAID-1 and 2 with Ext4/LVM/Linux software RAID-1). Performance is OK with the current setup but not always great. Obviously if I ordered 4*PX60 servers I would get OK performance. The old servers each have 16G of RAM and as 70% of disk IO is reads the extra RAM for cache should make disk performance good enough. One possibility I'm considering is getting 2*PX70-SSD or 2*PX90-SSD and adding 2*2TB disks to each to run ZFS with ZIL and L2ARC. Has anyone had some experience with ZIL and L2ARC on Linux? What things should I be investigating in this regard? Another possibility is to use 2*PX70-SSD and add an extra 2*480G SSDs to each so I get 1.5T of RAID-Z storage on each server. Any suggestions? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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MySQL table crash
by Russell Coker 02 Dec '14

02 Dec '14

After a reboot of the LUV server to upgrade the kernel I got the following messages. I just ran "repair table" commands on all of them. Is this something to be concerned about? Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [ERROR] /usr/sbin/mysqld: Table './wikimaus_officialwikidb/pagelinks' is marked as crashed and should be repaired Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [Warning] Checking table: './wikimaus_officialwikidb/pagelinks' Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [ERROR] /usr/sbin/mysqld: Table './wikimaus_officialwikidb/searchindex' is marked as crashed and should be repaired Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [Warning] Checking table: './wikimaus_officialwikidb/searchindex' Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [ERROR] /usr/sbin/mysqld: Table './wikimaus_officialwikidb/site_stats' is marked as crashed and should be repaired Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [Warning] Checking table: './wikimaus_officialwikidb/site_stats' Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [ERROR] /usr/sbin/mysqld: Table './wikimaus_officialwikidb/user' is marked as crashed and should be repaired Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [Warning] Checking table: './wikimaus_officialwikidb/user' Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [ERROR] /usr/sbin/mysqld: Table './wikimaus_officialwikidb/watchlist' is marked as crashed and should be repaired Dec 2 14:51:32 itmustbe mysqld: 141202 14:51:32 [Warning] Checking table: './wikimaus_officialwikidb/watchlist' -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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kfreebsd dropped as an official release architecture for Debian Jessie
by Chris Samuel 29 Nov '14

29 Nov '14

There was some discussion on the list a while ago about the future of kfreebsd in Debian after all the systemd furore and the release maintainers saying they were not happy with the state of that architecture for the Jessie release and would decide post November 1st if it was to be dropped. The latest release team sprint did look again at the three architectures that were in question (arm64, ppc64el and kfreebsd) and have decided thus: https://lists.debian.org/debian-devel-announce/2014/11/msg00005.html # Architectures # ============= # # There remained yes/no decisions for arm64, ppc64el, and kfreebsd. # # arm64 and ppc64el have made enough progress to be release # architectures for Jessie. Britney no longer has special handling # for these two. Therefore, FTBFS regressions for arm64 and ppc64el # are now release critical (but non-regressions are not). # # We discussed kfreebsd at length, but are not satisfied that a # release with Jessie will be of sufficient quality. We are dropping # it as an official release architecture, though we do hope that the # porters will be able to make a simultaneous unofficial release. So there we go. All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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Cheap Nexus 4
by Russell Coker 27 Nov '14

27 Nov '14

http://www.kogan.com/au/buy/lg-google-nexus-4-refurbished-by-lg-16gb-black/ The Nexus 4 is still a very capable phone, it has 4G of RAM, 16G of storage, runs recent versions of Android and can be easily rooted and modded. Kogan is selling refurbished Nexus 4's for $169 each, this is really a great deal. The Nexus 6 is too expensive at ~$900 IMHO and the Nexus 5 still hasn't dropped in price. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Re: Fwd: kfreebsd dropped as an official release architecture for Debian Jessie
by Peter Ross 27 Nov '14

27 Nov '14

From: "Brian May" <brian(a)microcomaustralia.com.au> > > FreeBSD could be so much better if only they adopted something like > SystemD too :-) > > "See https://www.youtube.com/watch?v=Mri66Uz6-8Y#t=1643 John Hubbard > talking about how an approach like systemd is needed on FreeBSD." -- > "Something like systemd" does not mean "systemd", as said. In one point Hubbart is a bit unkind to FreeBSDs init scripts. For a while now they are now "ahead" of old-fashioned sysV where the number S## determines the order. rcorder orders them at run time before running them. E.g. nfsd: # REQUIRE: mountd hostname gssd nfsuserd mountd: # REQUIRE: NETWORKING rpcbind quota rcpbind: # REQUIRE: NETWORKING ntpdate syslogd ntpdate: # REQUIRE: NETWORKING syslogd So this describes a logical order for nfsd and dependencies. Obviously some order is needed but they all come after a milestone NETWORKING and syslogd. syslogd_enable ="NO" makes the later a NOP. pppoed has # REQUIRE: NETWORKING so it could run in parallel. Yes, there is inetd, and there is cron.. (something else?) and there is a risk of having things in parallel (needeing semaphores). Ansd there are events as e.g. a USB device plugged in and caught by devfs etc. I am pretty sure that will be dealt with in a sensible way. systemd is a bit like our office renovations at the moment. [Slightly made up] "There is a cable in the way" "Just cut it" "Don't worry we go wireless". And a few days later: "Well, we need this on an Ethernet cable." "Don't worry, I still have a piece of string and a band aid" I just helped someone on the German mailing list with boot problems under OpenSUSE. He had /home coming from an iSCSI target. It just did not boot. He could not figure out how to fix the sequence so it worked, and started to hole it through the boot.local and rc.local scripts. This are fallbacks which are more or less obsolete for twenty years but needed as a life support for him. Regards Peter

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New OpenSUSE install- issues with encryption and LVM
by Andrew Greig 27 Nov '14

27 Nov '14

Hi All, A few weeks backI tried to install the 32bit version of OpenSuse 13.2 on a Toshiba A100 machine. It did not go well. So tonight I have had another crack at an install and I would like to get back to a clean drive, but there are a couple of encrypted LVM partitions which I cannot delete. It only has a 120Gb HDD so I don't want to sacrifice 30Gb for these two partitions. On trying to delete a partition, I get the message "The selected partition is used by volume group "/dev/system" To keep the system in a consistent state, the volume group and its logical volumes will be deleted. Then ... Delete partition /dev.sda1 and volume group ?dev/system now? Then clicking on delete does nothing. Everything remains intact. how do I overcome this, please? Andrew Greig

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