July 2014 - openSUSE Users - openSUSE Mailing Lists

[opensuse] Can fsck options be specified somewhere in sysconfig or /etc/init.d (for /forcefsck)?
by David C. Rankin 12 Jul '14

12 Jul '14

All, I am curious is there a /etc/init.d/boot.xzy file that can be created (or options added to) or an option somewhere in /etc/sysconfig that can be used to set options for fsck.ext3 for run on next boot when using /forcefsck or shutdown -Fr ? -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] Accumulating kernels
by Anton Aylward 12 Jul '14

12 Jul '14

In /boot I have /boot/initrd-3.11.10-11-desktop /boot/initrd-3.11.10-17-desktop /boot/initrd-3.11.10-71.gfba7c1f-desktop /boot/initrd-3.11.10-72.g744d90f-desktop /boot/initrd-3.11.10-73.g2829293-desktop /boot/initrd-3.11.10-74.g7d34bef-desktop /boot/initrd-3.11.10-75.ge012def-default /boot/initrd-3.11.10-75.ge012def-desktop /boot/initrd-3.11.10-76.g7c0c2b5-default /boot/initrd-3.11.10-76.g7c0c2b5-desktop I don't think I should have all those. In /etc/zypp/zypp.conf I have multiversion = provides:multiversion(kernel) multiversion.kernels = latest,latest-1,running I'm running 3.11.10-75.ge012def-desktop Certainly 10-11 and 10-17 should be gone. I've run 'purge-kernels' and it hasn't cleaned them out. What's up? -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] no connection to router after boot
by Daniel Bauer 11 Jul '14

11 Jul '14

Hello, since quite a while (some months) I have no connection to the router after boot. After the boot and login, I must switch off and on the router, establishing a new adsl-connection, and then the system connects. I have no idea where I could search for the reasons, where to look up hints or logs, what data I should mention here, where to "screw" to solve the problem... Opensuse 12.3 KDE 4.10.5 network setup "traditional" with ifup connected by cable from eth0 to adsl-router Once, after boot, I tried to switch to network-manager, but it tells me that no cable is connected, so I switched back to "traditional". Earlier, somebody said, I'd have to disconnect the router from all cables incl. phone line and power, and leave it a while. I first thought that it helped, but in fact it did not... Anybody had similar problems and found a solution? Thanks for your help! Daniel -- Daniel Bauer photographer Basel Barcelona professional photography: http://www.daniel-bauer.com google+: https://plus.google.com/109534388657020287386 -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] boot options not accessible any more
by Pol (Admin) 11 Jul '14

11 Jul '14

I have just installed win 8 in my lenovo b590, uefi enabled. I would like to install opensuse too, but i cannot access boot options any more. The system seems to bypass keyboard, until booting to win 8. Pressing f1, f2, f8, triggers no actions. Any hints? thank you paolo -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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Re: [opensuse] When I have downloads running, DNS fails.
by Carlos E. R. 11 Jul '14

11 Jul '14

Please remember to post to the mail list, not in private only. On 2014-07-11 02:14, Timothy Butterworth wrote: > You could bandwidth limit your downloads using kget which works better > than Firefox/chrome anyway. When I wrote the first post, the download were coming from two yast sessions on two computers, and another two on two virtual machines. Thus kget is not an option. > You could also reconfigure Bind to a > Caching/Forwarding configuration That's how it is set, for decades. Using "forwarders" set to my router, as shown on the first post. > and remove the DNS functions from the > SOHO Router. If you have the hardware I would also add ISC DHCP and > Squid to that same DNS server or just setup a dedicated Box running > Endian Community Edition. For the moment, avoiding the DNS on the router suffices :-) -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)

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[opensuse] google drive sync system
by Pol (Admin) 10 Jul '14

10 Jul '14

I would like to share between linux and ms-windows the disc partition that google chrome uses to sync google drive contents. Is that possible? I am not even sure that chrome can do the sync, on linux. Thank you paolo -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] ethernet crossover with vbox
by lynn 10 Jul '14

10 Jul '14

Hi What's the equivalent on virtualbox to joining 2 physical network cards with a crossover cable? I want to emulate 2 machines: 192.168.1.80 and 192.168.1.81 are attached respectively to 2 nics and these go to the switch. I can do that with a bridged interface on vbox. 192.168.0.10 and 192.168.0.11 are the two crossover cards. I've tried the bridge for the latter, but yast never recovers after configuring them, so I think it must be something to do with the vbox setting. Thanks, L x -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] python-dolfin problem
by John Young 10 Jul '14

10 Jul '14

I have an x86_64 machine running openSUSE 13.1 with Python 2.7 and I am trying to use python-dolfin, but I am getting an error: frodo{young}% python Python 2.7.6 (default, Nov 21 2013, 15:55:38) [GCC] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> from dolfin import * --------------------------------------------------- DOLFIN runtime dependency is not met. Install the following python module: 'ffc' and make sure its location is listed in PYTHONPATH. --------------------------------------------------- But python-FFC is in fact installed (and so is dolfin): frodo{young}% rpm -qa | grep python-FFC python-FFC-1.3.0-5.4.x86_64 frodo{young}% rpm -qa | grep dolfin | sort dolfin-1.3.0-2.21.x86_64 dolfin-devel-1.3.0-2.21.x86_64 libdolfin1_3-1.3.0-2.21.x86_64 python-dolfin-1.3.0-2.21.x86_64 python-dolfin_utils-1.3.0-2.21.noarch I have googled (is that really a word?) around on the network and found other folks who have seen the same error message, but their proposed fixes do not seem to help. I am guessing that I have some sort of incompatibility with some dependency, but I have not been able to find it so far. If I try to import ffc directly, I get a different error: frodo{young}% python Python 2.7.6 (default, Nov 21 2013, 15:55:38) [GCC] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import ffc Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/ffc/__init__.py", line 18, in <module> from ffc.compiler import compile_form, compile_element File "/usr/lib64/python2.7/site-packages/ffc/compiler.py", line 127, in <module> from ffc.analysis import analyze_forms, analyze_elements File "/usr/lib64/python2.7/site-packages/ffc/analysis.py", line 43, in <module> from ffc.quadratureelement import default_quadrature_degree File "/usr/lib64/python2.7/site-packages/ffc/quadratureelement.py", line 136, in <module> from ffc.fiatinterface import reference_cell File "/usr/lib64/python2.7/site-packages/ffc/fiatinterface.py", line 43, in <module> from ufl.geometry import cellname2dim ImportError: cannot import name cellname2dim >>> So it might appear that ufl.geometry is involved, but I have not yet found the problem. Has anyone else seen this? Any suggestions? -- JY ------------------------------------------------------------ John E. Young NASA LaRC B1148/R226 Analytical Services and Materials, Inc. (757) 864-8659 'All ideas and opinions expressed in this communication are those of the author alone and do not necessarily reflect the ideas and opinions of anyone else.' -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] Disk i/o's needed for raid 5 [WAS: duplicating current drive to new drive via usb and dd?]
by Greg Freemyer 10 Jul '14

10 Jul '14

On Wed, Jul 9, 2014 at 2:42 PM, Carlos E. R. <robin.listas(a)telefonica.net> wrote: > On 2014-07-09 20:00, Greg Freemyer wrote: > >> fyi: Raid 5 and 6 have the same issue, but the most efficient write >> size is the size of a full raid stripe. XFS as an example will try to >> structure it's writes to be full stripes when working with Raid. Thus >> a full stripe write becomes: write all data and parity chunks. >> >> A partial stripe write becomes: >> >> - read data about to be overwritten, >> - read old parity info. >> - Calculate new parity info. - >> - Write new data, >> - write new parity info >> >> Thus a single partial stripe write to a raid 5 requires at least 4 i/o >> operations. For a raid 6, it is a minimum of 5 i/o's. Having the >> filesystem invoke properly aligned full stripe writes is significantly >> more efficient. > > Doh! So that's why! > > And you mean that number of i/o per disk on the raid? No, that can not > be. It has to be one read per disk, that is, 3 reads (which should > happen simultaneously). Calculate parity. Do 3 writes, one per disk > (which should also happen simultaneously). > > Mmm... it does not match what you say, so I must be getting it wrong :-? To understand this we have to dig into some mathematical theory, so forget about reads and writes for a second and just focus on the math. == Beware: math below == Lets talk about a raid 5 with 5 disks with one of the stripes laid out as: D1, D2, D3 ,D4, P By definition P = D1 ^ D2 ^ D3 ^ D4 (that's just how raid 5 works) ^ is the xor operator as defined in the c programming language but applied to an entire stride's worth of bytes. If I want to change the data on D2, then I can back it out of the calculation by: P ^ D2 = (D1 ^ D2 ^ D3 ^ D4) ^ D2 because of the way ^ works that can be simplified to P ^ D2 = D1 ^ D3 ^ D4 (ie. the D2 xor operations effectively cancel themselves out). Now if I call the new D2 data D2n I can write a new equation as: (P ^ D2) ^ D2n = (D1 ^ D3 ^ D4) ^ D2n or by simple math P ^ D2 ^ D2n = D1 ^ D2n ^ D3 ^ D4 ==== Alright time to talk about disks. We know before updating D2, this is true: P = D1 ^ D2 ^ D3 ^ D4 And after updating D2 this must be true: Pn = D1 ^ D2n ^ D3 ^ D4 The obvious approach is to read D1, D3 and D4 calculate Pn. That means 3 reads and 2 writes or 5 i/o operations. Put lets do some math to that last equation: Pn = D1 ^ D2n ^ D3 ^ D4 Pn = (D1 ^ D3 ^ D4) ^ D2n But remember from the earlier math we know: P ^ D2 = D1 ^ D3 ^ D4 So let's replace (D1 ^ D3 ^ D4) with P ^ D2, we know have: Pn = (P ^ D2) ^ D2n Note that only requires 2 of the old data values. So what raid system does is it reads the original P stride and the original D2 stride. Then it xor's them together to remove the influence of the old D2 value. Then it xor's in the new D2n stride to calculate the new Pn. The end result is 2 simultaneous reads (P and D2) followed by 2 simultaneous writes (Pn and D2n). The cool part about that is works regardless of how many disks are in the raid 5 array. A single data stride update always requires exactly 2 reads and 2 writes. ===== I don't actually know how raid 6 works, so I can't do the same walk thru, but my understanding is a single data stride update with raid 6 involves 3 reads (P1, P2, D2) and 3 writes (P1n, P2n, D2n). The rest of the data strides don't have to be read to do the calculations. ===== That was a fun exercise. I hope at least a couple of people learned something. Greg -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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[opensuse] New broadcom driver bcm_6_30_223_248 for Asus G750JW wifi (Broadcom BCM4352) and kernel 3.15
by Rainer Klier 10 Jul '14

10 Jul '14

hi, there is a new broadcom driver bcm_6_30_223_248 out for Broadcom BCM4352 used for example in the Asus G750JW notebook: http://www.broadcom.com/support/802.11/linux_sta.php but it needs some patches to run with kernel 3.15. i have uploaded a patched 64 bit version to my google-drive storage for everyone who is interested: https://drive.google.com/file/d/0Bwpj5Wm8iVh-dEhoeWk0UzBiUHc/edit?usp=shari… -- Rainer Klier Research & Development xyzmo Software GmbH, SIGNificant E-Signature Solutions A-4052 Ansfelden, Haiderstraße 23 Tel.: +43 7229 88060-0, E-Mail: rainer.klier(a)xyzmo.com

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