June 2015 - luv-main - example.com

Kernel 3.17 no longer allows bonding ppp devices
by Toby Corkindale 18 Nov '15

18 Nov '15

Hi, I hit a problem when attempting to upgrade to kernel 3.17.2 on a particular server. Some time between 3.13 and 3.17, the bonding driver has stopped accepting ppp devices, instead throwing an error that the MAC address cannot be changed. (And does not allow this to be forced) I suspect it's unlikely.. but has anyone here encountered this issue and found a solution? Alternatively.. do you know where the right place to file bug report about this would be? It's been a while since I've filed anything against the linux kernel itself. Cheers, Toby

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apt config to acquire http but not https proxy?
by Toby Corkindale 19 Aug '15

19 Aug '15

Hi, Google is failing me. I know I can use acquire::http::proxy in apt.conf.d to set a proxy server, but this seems to make it used for both HTTPS and HTTP traffic -- however I only want to use it for HTTP traffic. Any suggestions? (Things not to say: * Use iptables to transparently proxy port 80 * Get a better HTTP proxy that support SSL ) Toby

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ssh errors from cron jobs
by Russell Coker 30 Jun '15

30 Jun '15

Error1: ssh_exchange_identification: Connection closed by remote host Error2: ssh_exchange_identification: Connection closed by remote host rsync: connection unexpectedly closed (0 bytes received so far) [Receiver] rsync error: unexplained error (code 255) at io.c(605) [Receiver=3.0.9] I'm getting lots of errors like the above from cron jobs in situtions where running the same script from an interactive session works. The first error is from a cron job that rsync's files to a server and the second error is from rsyncing files from the server via ssh. On one of my systems I've seen a pair of cron jobs fail with that error every half hour for the past 4 hours but when I run both jobs from an interactive session they work every time. What can be different about the operation of ssh in this regard? It's a passwordless login with RSA key so there's no reason for it to need user input and in any case the error message doesn't indicate that as being a problem. I've compared the cron environment with the environment from the interactive session and apart from /bin/sh (DASH on Debian) vs /bin/bash I can't see anything of note. Any ideas? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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problems in a net upgrade to Debian 8.1
by zlinw＠mcmedia.com.au 25 Jun '15

25 Jun '15

One of my systems has had Debian 7.x (AMD64) installed from 3 DVD's and subsequently it has been upgraded over the internet to testing a number of times. The last of these upgrades was sometime back (6 months or so). This was upgraded to 8.1 yesterday. Unfortunately its left the package system in a poor state. Note, previous experience doing this shows Debian's package system does not like this combination (install from cd/dvd and update via the internet) to go beyond the next version number. Aptitude wants to remove a large number of packages like blender, gimp, exiv2, the list going on and on. dselect how ever is much more on the ball, it only wanting to remove imagemagik and graphicsmagik. Apt does not appear to know what its doing, for instance it wishs to remove blender for 2 unmet dependencies. Curiously dselect, dpkg AND looking in the /var/lib/dpkg/info directory shows these dependcies ARE on the system. It's distinctly possible apt is not getting on well with a system thats been instaled from DVD's. I have suffered from similar package system corruption from this cause in the past. The problem being as almost (iff not all) debian developers use a net install and upgrade the CD/DVD install does not get tested very well. Its generally possible to resolve a situation like this with dpkg, it does require though much mucking around. Note: Both the apt package lists and the dpkg package lists have been updated, experience that these being out of sync can cause weird problems. Anyone have any ideas, it looks as though I may have to install 8.1 from scratch, something I am NOT really looking forward to due to what packages I like to select, package selection taking forever. Lindsay

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Re: problems in a net upgrade to Debian 8.1
by zlinw＠mcmedia.com.au 24 Jun '15

24 Jun '15

On Sat, 20 Jun 2015 10:45:16 Chris Samuel said, > On Sat, 20 Jun 2015 10:25:15 AM zlinw(a)mcmedia.com.au wrote: >> I am NOT dreamming this up, I did an apt-get update followed by an apt >> dist-upgrade to check this out,and the val/lib/dpkg/availibilty file was >> not touched >My wild guess is that you're looking at the atime of the file, and if your >kernel has relatime set (which has been the default for a while) then that >won't get updated if the file hasn't been modified since the last time >anything accessed it (unless it's a day or more since the last access, when >it will get updated). I am going to stick to my guns here, in this case when dselect update was done the availibilty files creation time was set to 0810, the time the file was writen to. Apt-get update, and apt dist-upgrade was done at 1010 the availibilty files creation time stayed at 0810, also its size did _Not_ change. This would seem to indicate the file was not writen to. I checked this again just now, apt-get update does not write to this file, where as dselect update does. Doing an strace on apt-get update shows it writes to files in the /var/lib/apt/lists directory and to the /var/lib/dpkg/status file but it does __not__ write to the availibilty file. So on my systems apt and dselect do have a different idea of what is availible. Lindsay

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Call for Papers for linux.conf.au 2016 in Geelong now open!
by Donna Benjamin 23 Jun '15

23 Jun '15

linux.conf.au 2016 Geelong, Australia - LCA By the Bay are delighted to announce #CfP is now open We're delighted to announce that the Call for Presentations for the conference, to be held 1st-5th February at Deakin University's Waterfront Campus, are now open. CfP will remain open until 6th July. linux.conf.au/cfp ----------------- Given the recent advances in wearable technology, embedded platforms, and fruitful marriages between open design and technology, open source software and hardware is delivering a number of tangible and intangible benefits for our daily lives. Life is better with Linux. -------------------------- And that’s exactly what our conference theme is. linux.conf.au 2016 will focus on how Linux and open source technologies are improving lives - through humanitarian projects, wearables that give us greater control and choice over our health and habits, and which enrich our lives through protecting our privacy and our ‘digital health’. ** What types of presentations are being sought?** -------------------------------------------------- * Presentations - the standard, time-tested format for most of linux.conf.au. A sage on the stage presents interesting and hopefully informative and engaging content, with time for questions. Around 45 mins total. * Tutorials - double slots with a defined syllabus, where delegates walk out with a key skill or ability. Some prep work is usually required. * Prototypes - we’d like to do something different this year and introduce 45 minute sessions called ‘Prototypes’ - where Makers, Hackers, and Voiders are able to show and tell what they’ve made. It could be a hardware prototype, a software prototype, or a ‘wetware’ prototype - where technology is interacting with the biomedical field for things like implantable NFC chips. ** What presentation topics are welcomed? ** -------------------------------------------- We’re still expecting to have our time-honoured classic talks - the state of the Linux Kernel, advancements in architecture, storage, file systems and utilities. But we’d also like to see lots of talks from people who use Linux and F/LOSS to make our lives better. To make better people. And a better humanity. How do we develop for wearables and implantables? How do you do unit tests for an implantable wetware device? What happens when we see the first IoT murder? And who owns our data from wearable devices - us, or our insurance companies? Linux is now embedded in a raft of wearable, tiny devices - which present challenges and opportunities to be met and maximised. These are the stories we would like to hear. ** What about Miniconfs? ** --------------------------- Miniconference proposals are also now welcome. Miniconf #CfP will close on 6th July. See https://linux.conf.au/programme/miniconfs for more details ** How do I submit to the #CfP? ** ---------------------------------- 1. Go to http://linux.conf.au 2. Create an account 3. Confirm your email address 4. On the conference website, log in and choose 'Submit a Proposal' from the left hand menu 5. Fill out the required information - remember, the more info you provide, the better informed Papers Committee will be. ** How do I stay in touch? ** ----------------------------- Potential Delegates and Speakers are encouraged to remain up to date with conference news through the following channels; Website: https://linux.conf.au Twitter: @linuxconfau, hashtag #lca2016 Facebook: https://www.facebook.com/lcabythebay Google+: https://www.google.com/+LcabythebayOrgAu Lanyrd: http://lanyrd.com/2016/linuxconfau/ IRC: #linux.conf.au on freenode.net Email: info(a)lcabythebay.org.au Announce mailing list: http://lists.linux.org.au/mailman/listinfo/lca-announce We warmly encourage you to forward this announcement to technical communities you may be involved in.

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Antispam - 2015 edition
by Jason White 23 Jun '15

23 Jun '15

Greetings to all on the list. I'm using CRM114 to filter all of the mail that passes the restrictions defined in my Postfix configuration. Some spam still finds its way through. These days, I'm relying extensively on Dovecot IMAP to enable retrieval of mail by multiple devices (two laptops, a phone, and a tablet that could receive mail but hasn't been configured to do so yet). What's the best way to set up automatic retraining of messages on the server Several options come to mind, including incron, a systemd timer unit, a cron job. The desired effect is: Everything that is moved into the spam folder from elsewhere is classified as spam. Everything moved out of the spam folder is retrained as good. Suggestions?

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Re: [luv-beginners] linux noob - install problems, installfests?
by Wen Lin 22 Jun '15

22 Jun '15

Hi Justin, Are you able to bring just your desktop to our Linux Beginners Workshop this coming Sat 20 June? The address is: VPAC 110 Victoria St, Carlton South VIC 3053. Quite a number of us will be there, and can have a closer look at your SSD and troubleshooting. Would like to help. Wen On Jun 14, 2015 11:10 PM, "Justin Fisher" <justinlewisfisher(a)gmail.com> wrote: > Hi Wen, > > I'm still no further along with this install. I have tried again today > with the KXstudio live disc, and for whatever reason the ssd is now no > longer being recognized from the live disc and from Win7. The instructions > listed in the links you sent I had pretty much already followed as I had > used this guide > http://www.linuxbsdos.com/2012/07/23/dual-boot-ubuntu-12-04-and-windows-7-o… > . I checked my bios and made sure i selected ahci where it was applicable > but this did not fix anything. I have to say i am out of ideas (and > motivation) here and will need some help if you are able to spare some > time. Many thanks. > > Justin > > On Tue, Jun 9, 2015 at 10:49 AM, Trent W. Buck <trentbuck(a)gmail.com> > wrote: > >> Wen Lin wrote: >> > One key point: *BIOS and UEFI: set it to AHCI* >> >> Unless you're dual-booting, *always* set your SATA controllers to AHCI. >> The options "legacy", "hybrid" and "PATA" are worse choices for Linux. >> >> Erratum: current hardware seems to add NVMe, which appears to be better? >> https://en.wikipedia.org/wiki/NVMe_vs_AHCI >> >> > using the parameter 'noatime'. >> >> The default should be relatime (check /proc/mounts), >> which should be near enough. >> >> Changing it to noatime will break a handful of programs, >> but you probably don't use them anyway. >> > >

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Re: problems in a net upgrade to Debian 8.1
by zlinw＠mcmedia.com.au 20 Jun '15

20 Jun '15

On Sat, 20 Jun 2015 10:02:05 Craig Sanders said, On Sat, Jun 20, 2015 at 09:34:43AM +1000, zlinw(a)mcmedia.com.au wrote: >> Further to my previous post, >> >> As far as I can find out dselect and dpkg use /var/lib/dpkg/available >> for there package list but apt uses the various files in......... >> >> /var/lib/apt/lists >wrong. I am NOT dreamming this up, I did an apt-get update followed by an apt dist-upgrade to check this out,and the val/lib/dpkg/availibilty file was not touched, where apt is getting its info from on my system I do not know but its ____not____ from the /var/lib/dpkg/available file. Its possible a full dvd install sets up some different system, I do not know. Lindsay

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Re: problems in a net upgrade to Debian 8.1
by zlinw＠mcmedia.com.au 20 Jun '15

20 Jun '15

Further to my previous post, As far as I can find out dselect and dpkg use /var/lib/dpkg/available for there package list but apt uses the various files in......... /var/lib/apt/lists on my system these are.... dl.google.com_linux_earth_deb_dists_stable_Release dl.google.com_linux_earth_deb_dists_stable_Release.gpg dl.google.com_linux_earth_deb_dists_stable_main_binary-i386_Packages ftp.debian.org_debian_dists_testing_InRelease ftp.debian.org_debian_dists_testing_contrib_binary-i386_Packages ftp.debian.org_debian_dists_testing_contrib_binary-i386_Packages.IndexDiff ftp.debian.org_debian_dists_testing_contrib_i18n_Translation-en ftp.debian.org_debian_dists_testing_contrib_i18n_Translation-en.IndexDiff ftp.debian.org_debian_dists_testing_main_binary-i386_Packages ftp.debian.org_debian_dists_testing_main_binary-i386_Packages.IndexDiff ftp.debian.org_debian_dists_testing_main_i18n_Translation-en ftp.debian.org_debian_dists_testing_main_i18n_Translation-en.IndexDiff ftp.debian.org_debian_dists_testing_non-free_binary-i386_Packages ftp.debian.org_debian_dists_testing_non-free_binary-i386_Packages.IndexDiff ftp.debian.org_debian_dists_testing_non-free_i18n_Translation-en ftp.debian.org_debian_dists_testing_non-free_i18n_Translation-en.IndexDiff I assume all use /var/lib/dpkg/status, because different lists are used the system can get out of step. Further more it seems as apt is more likely omit packages from its lists. I have never had dpkg and apt report the same number of packages, you can get close, currently the list of installed packages for both differs by 2 2815 for apt 2817 for dpkg. Interestingly "apt-move sync" which is supposed to produce a local mirror of all installed packages on your system only produced 2400 odd packages for the above system. I have no idea what debians package system thinks its doing. Note: this is what I call "getting out of step", on an initial install all the above numbers _nearly_ match. Why anyone in debian though it was a great idea to have two separate non-synced package lists is beyond "this little black duck". Lindsay

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Re: problems in a net upgrade to Debian 8.1On
by zlinw＠mcmedia.com.au 19 Jun '15

19 Jun '15

On Fri, 19 Jun 2015 11:26:49 Craig Sanders said, On Fri, Jun 19, 2015 at 04:39:26AM +1000, zlinw(a)mcmedia.com.au wrote: >> and _____BEFORE______ doing any dist-upgrade I ALWAYS check what will >> happen using dselect as unlike aptitude it will display every change >> that will be done. >that's what 'apt-get -d -u dist-upgrade' is for. it not only limits Thanks for the tip, I will give it a go, for various reasons though I prefer dselect. >> IMPORTANT point here apt and dselect use different package lists both >> these need to be updated separately to keep the system in sync. >please stop saying this because it's not true. >apt-get, aptitude, dselect, dpkg and even the GUI versions of same *ALL* >use >/var/lib/dpkg/status and /var/lib/dpkg/available. I beg to differ here, on my systems apt-get update does ___not___ touch /var/lib/dpkg/status and /var/lib/dpkg/available. Also after such an update dselect does ___not___ show any change, but after doing "dselect update", the /var/lib/dpkg/available but status remains as it was. >> Russell Coker said, >> >> >I've had ongoing problems with aptitude insisting on removing things >> >I want. >> >> I have checked this out and apt appears not te be aware of some >> packages. as previously stated in one of my cases "blender", apt >> wanted to remove it due to two missing dependencies, both packages >> were installed and dselect was aware of them apt was not. >if this actually happened as you remember it,then it was most likely due to >versioned dependencies. a dependency can be declared not just on a package The version numbers ___were___ correct, I checked this explicitly, for some reason apt simply ignored this while dselect and dpkg did not. From all of the above I have assumed apt and dselect ___do___ use different package and status lists. One thing I will restate is because of ___VERY___ poor and expensive internet up around this neck of the woods, I always do a cd (now dvd) install. Long experience shows that for some reason debians net upgrade does ___________NOT___________ like this and after a handfull of net updates the package system gets itself into a real twist. I have found keeping the apt and dselect package list in sync reduces but does not eliminate this confusion. Note: You can fix this usually with dpkg, it takes days though. After 3 or 4 updates its necesary to reinstall the system, with apt-move this is not as difficult as it may appear. I always keep my own updated repository for all versions of debian I use, these only containing the packages I require. To reinstall one uses the method in the debian docs to copy a system, uisng this it only takes 30 minutes or so to reinstall. Remember I am no newbe, I have been using linux since kernel 0.96d (earlish 1993) and having been using debian (the best linux distro) since debians very begining. Lindsay

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Re: problems in a net upgrade to Debian 8.1
by zlinw＠mcmedia.com.au 19 Jun '15

19 Jun '15

Firstly many thanks the replies, although just being able to explain a problem can give one much better insites, its always nice to get others experience. Chris Samuel said, >I'm puzzled by what you say here, you seem to imply the sequence is: >1) Install 7.x from DVD >2) Upgrade to Debian testing >3) Downgrade from testing to 8.1 That is correct, the important point though is the delay, the last upgrade was well over 6 months ago and _____BEFORE______ doing any dist-upgrade I ALWAYS check what will happen using dselect as unlike aptitude it will display every change that will be done. IMPORTANT point here apt and dselect use different package lists both these need to be updated separately to keep the system in sync. Russell Coker said, >I've had ongoing problems with aptitude insisting on removing things I >want. I have checked this out and apt appears not te be aware of some packages. as previously stated in one of my cases "blender", apt wanted to remove it due to two missing dependencies, both packages were installed and dselect was aware of them apt was not. From my experience the more dist-upgrades are done the more debians package system gets itself into a twist. I have previosuly solved this by building my own mirror using apt-move and doing a netinstall from that. This itself has its own problems due to apt as mentioned previously not being aware of some packages, this can be fixed to some extent using "apt-move sync". I nearly always have to fix some small issues using either dselect or even the ultimate debian package management tool dpkg. I will do this this time once I am sure all packages needed are in my local mirror. A remaining problem here is that apt and dpkg/dselect usually have a different idea on what one has on the system, dselect always showing more packages are installed. Note: I THINK this is because dselect will track old packages still installed apt appears not to be able to do that. Never a dull moment when mucking around with computors ;-),:-(. Lindsay

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Re: Cups and printer conundrums
by Mark Trickett 18 Jun '15

18 Jun '15

Hello All, Some further testing, had access to a Windows Notebook, installed Canon LBP-5050N printer with USB then network connections and printed test page successfully each time, so know that cables and printer work, so back to permissions and the like with CUPS and the printer drivers, and possibly network protocols. The Windows test page does declare the data format as raw. I think there is a bit of software that will log file access. Then I can see what is called and invoked when I try to print. Then I can see what the permissions are, and a better idea of what to look for in the configurations. There were comments about Arch having a blog with useful comments. It specified commands for systemd components that I could not find under Debian. I would appreciate some pointers to stopping services, and restarting. There are files that if I am to edit, I need to stop CUPS for the duration, then restart to test. I also wish to file a form of bug report on CUPS in Debian, that I found it necessary to add myself to the appropriate groups to be able to add a printer. I would expect that the initial install where I set myself as administrator would do that. I can cope with the command line, when I have an idea of what is happening, but how about the Windows refugee who is refused access to installing any printer. We can help if they ask rather than going back to Microsoft, but they are all too likely to just reload Windows. Regards, Mark Trickett

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Kernel oops issues in latest Debian Squeeze LTS kernel 2.6.32-48squeeze12
by Chris Samuel 17 Jun '15

17 Jun '15

Hi all, The latest security update for the Debian Squeeze LTS 2.6.32-48squeeze12 has some nasty regressions that cause lots of oops's according to posts on the debian-lts mailing list. IA32, AMD64 and PPC are affected (so far). Debian bug is: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=789037 debian-lits mailing list thread starts here: https://lists.debian.org/debian-lts/2015/06/msg00061.html Fingers crossed it gets fixed soon. cheers, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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Software Manager nor Synaptic won't start up
by Carl Turney 15 Jun '15

15 Jun '15

Hi All, Running a Mint Qiana 32bit MATE system. For the last month or two... Starting Software Manager gives no apparent response, as if nothing had happened. Starting Synaptic only gives the following error messages (and Synaptic won't run): ***** > An error occurred > The following details are provided: > > E: Encountered a section with no Package: header > E: Problem with MergeList /var/lib/apt/lists/ppa.launchpad.net_danielrichter2007_grub-customizer_ubuntu_dists_trusty_main_i18n_Translation-en > E: The package lists or status file could not be parsed or opened. > E: _cache->open() failed, please report. ***** Can anyone give a basic explanation of what's happened, and/or a step-by-step on how I can fix it? My Mint Qiana 64bit MATE system has (as far as I know) exactly the same programs, repositories, etc. and doesn't have this problem. Thanks very much in advance. Carl Turney

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Re: Cups and printer conundrums
by zlinw＠mcmedia.com.au 14 Jun '15

14 Jun '15

On Sun, 14 Jun 2015 21:58:47 Mark Trickett said, >I am thinking of grabbing the ISO's of 8.1 when I can get near a >broadband connection, hopefully, and a fresh install and see what >happens. I have the first DVD of Debian 8.1 AMD 64 and will be getting the second disk latter this week. You are welcome to a copy. If you wish I can post you a USB key with the iso images, or even the two disks might be easier. These 2 disks will have 99% of whats required. I only have the first 2 as each iso image costs me $40 in line bandwidth. Lindsay, Near Benalla.

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Re: Cups and printer conundrums
by Mark Trickett 14 Jun '15

14 Jun '15

Hello All, More observing, now and then. This fragment from /etc/cups/cups-files.conf seems pertinent. # Default user and group for filters/backends/helper programs; this cannot be # any user or group that resolves to ID 0 for security reasons... #User lp #Group lp This in the light that all the bits and pieces I look at in the file manager appear to be owned by root. Perhaps this might be where I am having problems, such elements not being invoked because they have too much permissions? I am thinking of grabbing the ISO's of 8.1 when I can get near a broadband connection, hopefully, and a fresh install and see what happens. There is also the possibility of an earlier release, perhaps 5 or 6. A different direction is that I have magazine DVD's of SUSE and other distros. I have some idea now of what to go looking at and try to assess differences when things work. Regards, Mark Trickett

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SourceForge Not Making A Graceful Exit | FOSS Force
by Andrew McGlashan 13 Jun '15

13 Jun '15

More on SF, the reporters at FOSS.... they need support if you can mange to support them too [1]. http://fossforce.com/2015/06/sourceforge-not-making-a-graceful-exit/ [1] https://www.indiegogo.com/projects/foss-force-keeping-tech-free#/story A.

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Re: Cups and printer conundrums
by Mark Trickett 11 Jun '15

11 Jun '15

Hello All, Many thanks to Craig Sanders for some very valuable pointers. I have made some progress, but still not yet printing. markt@AcerNotebook:~$ uname -a Linux AcerNotebook 3.2.0-4-686-pae #1 SMP Debian 3.2.68-1+deb7u1 i686 GNU/Linux markt@AcerNotebook:~$ dpkg --print-architecture i386 My first thoughts from the uname command was that I had installed 64 bit, but no, the dpkg results was very informative. I managed to get hold of a later CAPT package than prior, thanks Craig for several steps. I managed to unpack and finally managed to install. As they were not listed in the available packages, synaptic did not see, but I did find ways with dpkg, when they were eventually in the right place. Significant use of sudo and even "sudo su" to sort out. The next stumble was not permitted to do admin in CUPS, solved that by adding myself to both lp and lpadmin groups. I know the default IP address of the printer, and leaving at factory default. Not certain of protocols at the moment, need some advice in due course. Now I can ping the printer, and get to the printer by ftp, but not yet printing. For this, I have a direct network cable. I am also struggling with NetManager, it has merit on a portable computer where I am attaching to various networks, but it also provides a stumbling block for setting up a fixed point. Having the interfaces unmanaged is a way I have tried, but I do not yet know enough to cope that way, nor am I coping with the interfaces managed. I comprehend what networking is about, and a lot of the detail, but a lack of practical experience is leading to mistakes and errors. I have a small switch/hub, TP-LINK TL-SF1005D, and trying to go through that does not work at the moment. I may have a defective cable, will do some more testing in due course. The printer address is 192.168.0.215, and eth0 is the wired connection on the notebook and I set that to 192.168.0.150. I am not well up on then setting the netmask and the like and would appreciate some pointers. Currently the network has only the two devices and no internet connection, although I am considering adding a RPi as a gateway device for the analog modem. Getting back to the printer, I am attaching two text files, one ftp'd from the printer, the other /etc/cups/printer.conf and I would appreciate thoughts on the protocol, currently try to print a test page and get a "Unable to write print data: Broken pipe" message on the CUPS web page while monitoring the attempt to print a test page. I hope that describing some of what I have done is helpful to other newer users. I can nose around, but without reason to use and refresh, too much slips away. Approaching 60, I no longer learn quite like I did in my 20's. Regards, Mark Trickett

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Iceweasel or ABC has sand in the gears?
by Erik Christiansen 10 Jun '15

10 Jun '15

While youtube clips show (watchable, but not entirely smooth) motion in iceweasel on my new debian 7.8.0 install, ABC clips bearing the simple two-circle Venn diagram symbol in the TLH corner show only a static video image, and even the audio feed is interrupted. Is there some way to diagnose where the pipe is most constricted? (The 10 MB file at http://mirror.internode.on.net/pub/test/ took 20 seconds.) Does anyone else have trouble with the ABC's new video clip dingus? Erik

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Re: CUPS and "broken pipe" and Canon LBP-5050N
by Mark Trickett 10 Jun '15

10 Jun '15

Hello All, Still chasing, but a slightly different tack. When I set it up, it sets to "socket://192.168.0.215" which research shows as the HP JetDirect protocol. There are comments in the CUPS documentation that the vendors implement the IPP (Internet Printing Protocol) with deficiencies that mean it is better to use other protocols. Does anyone here have any information to contribute? I do not want to run Windows, but will set up a Windows box if necessary and sniff the packets to see what is going on. That will take undue time and effort at the moment, but would provide real answers. If anyone can find answers where someone has done any of that, I would very much appreciate information. I would still appreciate a bit of a network primer about the netmask and the like. I also need to "discover" the ip address of the switch I have, it does not respond at what I have found on the net as the default ip address. Regards, Mark Trickett

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CUPS and "broken pipe"
by Mark Trickett 10 Jun '15

10 Jun '15

Hello All, Have continued looking hither and yon and cannot find what specifies invocation of filters and the like, cannot see where there might be a broken pipe. Is it piping between filters and programs, or perhaps the networking. Still not certain. Regards, Mark Trickett

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Re: [luv-beginners] linux noob - install problems, installfests?
by Russell Coker 09 Jun '15

09 Jun '15

On Mon, 8 Jun 2015 09:01:26 AM Wen Lin wrote: > Another key point: A Solid State Drive is worn down relatively quickly by > write actions. So this site introduced steps/commands on how to minimise > the action of writing to SSD by turning off the updating whenever a file is > read (last accessed time) - using the parameter 'noatime'. It has already been pointed out that relatime is default now. It would be interesting to compare the amount of data written for that vs for other operations. Modern SSDs are designed for significant volumes of disk writes. When you use an SSD as a ZIL for a ZFS filesystem it will get a copy of all data that is written to the entire RAID array. We aren't seeing reports of SSDs failing when used for a ZIL. Some previous analysis of potential SSD lifetimes on this list suggested that they should be good for at least 5 years. If that was the case then they would often outlast hard drives. If your data is important then you will have multiple drives used in some form of RAID array or really good backups (in the case of systems that can't do RAID such as typical laptops). So you shouldn't be particularly worried about the life of SSDs. As with hard drives you can expect them to last long enough that you want bigger ones before they wear out. -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Re: [luv-beginners] linux noob - install problems, installfests?
by Chris Samuel 09 Jun '15

09 Jun '15

Hi Wen, Justin, On Mon, 8 Jun 2015 09:01:26 AM Wen Lin wrote: > Another key point: A Solid State Drive is worn down relatively quickly by > write actions. So this site introduced steps/commands on how to minimise > the action of writing to SSD by turning off the updating whenever a file is > read (last accessed time) - using the parameter 'noatime'. That's out of date - the kernel already defaults to "relatime" (since 2.6.30, released 6 years ago pretty much today), Red Hat describe it thus: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/ht… # Relatime maintains atime data, but not for each time that a file # is accessed. With this option enabled, atime data is written to # the disk only if the file has been modified since the atime data # was last updated (mtime), or if the file was last accessed more # than a certain length of time ago (by default, one day). So in other words for files that aren't being written you'll get an atime update at most once a day on reading it. commit 0a1c01c9477602ee8b44548a9405b2c1d587b5a2 Author: Matthew Garrett <mjg(a)redhat.com> Date: Thu Mar 26 17:53:14 2009 +0000 Make relatime default Change the default behaviour of the kernel to use relatime for all filesystems. This can be overridden with the "strictatime" mount option. Signed-off-by: Matthew Garrett <mjg(a)redhat.com> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> Best of luck! Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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Clean install of OpenSuse 13.2 - What partitioning set up should I use?
by Andrew Greig 09 Jun '15

09 Jun '15

Years ago I was very comfortable with a multi partition setup. But on starting an upgrade to OpenSuse 31.2 I have discovered that the machine needed a serious cleanout. So I tried to repartition into SWAP, / and /home. OpenSuse recommended btrfs for / and XFS for /home. I have used XFS for years so no problems. I allocated 20Gb for SWAP and 50Gb for / and the balance to /home. The install has failed because it could not format the BTRFS partition. I expect that in the process the new partition table has been created, so maybe the historical mess is gone. Can someone recommend a "standard" btrfs set up to save me some time, please? Andrew Greig

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