March 2015 - openSUSE Users - openSUSE Mailing Lists

[opensuse] SUSE Firewall blocking LAN traffic
by Bob Williams 20 Mar '15

20 Mar '15

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm trying to setup a web2py server to serve music to the various machines in my house. All the machines live behind a NAT router and they all run openSUSE 13.1 or 13.2. The only way I can get a connection between machines is to stop the Firewall on each machine. What setting in YaST > Firewall do I need to change to allow internal LAN traffic, but still protect each machine from the WAN? TIA Bob - -- Bob Williams System: Linux 3.16.7-7-desktop Distro: openSUSE 13.2 (x86_64) with KDE Development Platform: 4.14.3 Uptime: 06:00am up 7:55, 3 users, load average: 0.16, 0.05, 0.06 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlULG/sACgkQ0Sr7eZJrmU7JIgCeLuFUhgjlL44qx/W467Q4zLW1 RDsAnRzm7w24O3PX8c3ZKoS5cwMXZzMn =WP2A -----END PGP SIGNATURE----- -- 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] any vim highlighting experts here?
by Per Jessen 19 Mar '15

19 Mar '15

In my copious spare time I was playing with updating the syntax highlighting for /etc/resolv.conf: /usr/share/vim/current/syntax/resolv.vim In my own .vim/after/syntax/resolv.vim I have added: syn match resolvIPNameserver contained /\%([0-9A-Fa-f:.]\+\)\s*$/ contains=@resolvIPCluster syn cluster resolvIPCluster contains=@resolvIPv4,@resolvIPv6 syn cluster resolvIPv4 contains=resolvIPError,resolvIPSpecial syn match resolvIPv6 /$[0-9A-Fa-f]{0,4}:$\{1,7}[0-9A-Fa-f]{1,4}$/ contained The IPv6 check is at best rudimentary, but I can't quite make it work. If you copy the above and edit /etc/resolv.conf via vi/m, you'll see what I mean. -- Per Jessen, Zürich (11.5°C) http://www.hostsuisse.com/ - virtual servers, made in Switzerland. -- 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] today update
by jdd 19 Mar '15

19 Mar '15

Hello, today update, be it with apper or zypper up (13.2) asks me to remove Dolphin and Konqueror among other things. "The following 7 applications are going to be REMOVED: Ark Dolphin KFind KGpg KolourPaint Konqueror Marble " I guess I have to wait for a fix? thanks jdd -- 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] Performance penalty for mis-aligned partitions on a 4K physical sector drive
by Greg Freemyer 19 Mar '15

19 Mar '15

Felix, You asked about the subject, but your thread went on in other directions. The performance penalty varies based on access pattern. For reads, there is basically no penalty. A modern rotating disk reads an entire track at a time and puts it in the drives internal cache. A modern track is roughly 1MB, so when you see a disk drive with a 8MB cache, that means it can hold 8 tracks. It does NOT mean it will hold 8MB of random i/o data scattered around the disk. It is far better to think about that cache as 8 track buffers. So if you issue a unaligned page read, the drive will read in the entire track the page resides on and then will transfer that to the kernel. No meaningful penalty at all if the unaligned page resides on a single track. If the unaligned page resides on 2 tracks due to the misalignment it will trigger 2 track reads and possibly a disk seek at the internal drive level. If the 2 tracks are on the same cylinder, a disk seek is still not needed, so the penalty is another rotation of the disk. If the 2 tracks are on different cylinders, then a disk seek between 2 contiguous cylinders is needed, but that is also pretty quick (a couple msecs I think with modern drives). If a track is 1MB, then there are 250 4KB pages / track, so only one time in 250 do you have a performance penalty. (Drives have variable pages / track based on the diameter of the specific track. Tracks near the center of the drive have a much small diameter than a track on the outer edge, so the likelihood of incurring the penalty is about twice as high at the "end" of the disk. The trouble is with writes. For long sequential writes, there is minimal penalty again because the misalignment only happens at the start and end of the transfer. ie. dd bs=1MB will trigger 1 MB i/o's to the drive and only the first and last page get hit with a performance penalty. If the workload is small 1 page writes, then the penalty is huge. For every write a read/modify/write cycle has to be implemented. At the drive level that means every write requires an entire disk rotation to implement the read. The modify is free, but then a second rotation is needed to do the write. A 7200 RPM drive takes roughly 8.3 milliseconds to make a rotation, so every 1 page unaligned write takes an extra 8.3 milliseconds to complete. You would need to benchmark your typical load, but if you do lots of small i/o's, I think you will find that 8.3 msecs a pretty major penalty. == specific to 1 KB pages == Alignment won't help much in the general case. If you write a 1KB random i/o to a 4KB page, the drive is still forced to do: read track, modify data, write track. If the 1KB page is unaligned, it is the same except in the rare case that the 1 KB is split over 2 tracks where it becomes: read track1, modify data, write track1 seek disk if needed read track2, modify data, write track2 But a 1KB page being split between 2 tracks should happen much less than 1% of the time. If you are going to use drives with 4KB physical sectors you need to avoid filesystems with 1KB blocks. Greg -- Greg Freemyer -- 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] typing correction in terminal window
by don fisher 19 Mar '15

19 Mar '15

Trivial, but what software component is trying to figure out what I am really trying and offers mostly incorrect corrections. For me, it is almost never correct and I would like to disable it, or modify how it works. Can somebody point me to the setup GUI or give me the name so I can adjust it. The same behavior happens under tcsh or bash, so I assume it must precede them. Thanks Don -- 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] OpenSUSE 20150312 (Tumbleweed) - mono totally broken, cant find gdb-heap.py
by André Verwijs 18 Mar '15

18 Mar '15

ADDITIONAL INFORMATION: - downloaded and installed "gdb-7.9-2.1.x86_64.rpm" - added a ".gdbinit" file to my /home folder, containing: add-auto-load-safe-path /usr/bin/mono-sgen-gdb.py add-auto-load-safe-path /usr/bin/mono-gdb.py let's see if this works.... ______________________________________________________________________________________ My Twitter Page: http://twitter.com/OpenSimFan My Facebook page (be my friend, please ) http://www.facebook.com/andre.verwijs My Google+ page (follow me please ) André Verwijs - Google+ https://plus.google.com/111310545842863442992 -- 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] How to install latest git in SUSE 13.1
by Arup Rakshit 18 Mar '15

18 Mar '15

Hi, How can I install latest git version ? I have very old versions and when I try to update it : [arup@sztukajedzenia (SJ002)]$ sudo zypper in git Loading repository data... Reading installed packages... 'git' is already installed. No update candidate for 'git-1.8.4.5-3.8.4.i586'. The highest available version is already installed. Resolving package dependencies... Nothing to do. [arup@sztukajedzenia (SJ002)]$ I can see "nothing to do". I used as they mentioned in the official link (http://git-scm.com/download/linux) -- ================ Regards, Arup Rakshit ================ Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it. --Brian Kernighan -- 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] Tumbleweed - problems/issues - what is the May 4 "New" tumbleweed deadline?
by David C. Rankin 18 Mar '15

18 Mar '15

All, Following on from Roger's upgrade question, it prompted another general question of "How is tumbleweed as a choice to move to from reliability/gotchas standpoint?" Good experiences? Bad Experiences? Hardware Support? Package availability? I would love to move to it, but what are it's rules? Is it going to remain current with all upstream packages? (E.g. kernel, systemd, server packages (apache, etc..), desktops, ..) Does it retain consolekit in its current form? What are the currency requirements? (Meaning if I run tumbleweed, configure my box, then don't update for 90 days, should I still be able to run updates and pull in current packages without expecting issues?) Looking, I find https://en.opensuse.org/SDB:Tumbleweed_Merger discussing a "New" Tumbleweed and the need to remove/reconfigure all repos, etc. before May 4, 2015. What is the significance of this transition? Is there a good link or a couple of pages that collect this type of info to help people looking at it make a decision? The concept of rolling release is fantastic. However, I would like to understand just what tumbleweed will provide before tossing the release model aside and moving to it. I know how Arch does it (current with upstream -- period), how will it be with openSuSE. This is important to know for a planned maintenance standpoint. I.e. to know when upcoming packages will introduce hardware issues, or to know when package upgrades will involve a lot of reconfiguration time (e.g. apache 2.2 -> 2.4 type). Where/how will this information be communicated for TW? If there isn't a page with this type of info collected for TW, it may be worth considering doing. Rolling releases are fantastic, as long as they don't catch you by surprise with updates that break things or introduce hardware incompatibilities (raid support, etc..) What is the general consensus on this type information for TW? -- 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] Duplication of openSuse 13.2 system
by don fisher 18 Mar '15

18 Mar '15

I have multiple computers and would like to install openSuse on all of them. I have one system working the way I desire, and would like to copy it to the other systems. Before btrfs, this was a simple rsync operation. I have posed this question before it terms of performing a backup. Is there any way to duplicate an installation with all of the updates I have installed? My current plan is to install virgin 13.2 from the distribution media on the target system to establish the btrfs file system and the grub2 files. I was then going to write a script that did an rsync on each of the 13 subpartitions, omitting both the /boot/grub2/x86_64-efi and /boot/grub2/i386-pc subpartitions. If I include --delete and omit -u options in the rsync command, it should remove any new stuff and replace it with my existing code. Is the approach sane and will the following rsync line work? Are there any parts of grub2 that will get clobbered, or do they all reside in the /boot/grub2 subpartitions? rsync -rlpgovtS --delete "$SRC_DIR" "$DST_DIR/" 2> /dev/null Thanks, Don -- 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] cifs.service ignoring /etc/samba/cifstab since recent update
by Rodney Baker 18 Mar '15

18 Mar '15

Hi samba gurus. Following a recent update (although I can't say exactly which one), cifs.service has stopped auto mounting samba shares. My samba shares are defined in /etc/samba/cifstab, but running systemctl status cifs.service reports: Mar 16 19:42:28 mako systemd[1]: Starting LSB: Import remote CIFS file systems... Mar 16 19:42:28 mako cifs[11479]: No filesystem of type cifs active in /etc/fstab. ..skipped Mar 16 19:42:28 mako systemd[1]: Started LSB: Import remote CIFS file systems. It seems to be looking only in /etc/fstab, not /etc/samba/cifstab. I can mount the shares successfully running mount (as root) directly from the command line (with the appropriate options as defined in /etc/samba/cifstab. Is there still a valid reason to keep /etc/samba/cifstab, or is the LSB way now to move the contents of that file to /etc/fstab? Thanks in advance, Rodney. -- ============================================================== Rodney Baker VK5ZTV rodney.baker(a)iinet.net.au ============================================================== -- To unsubscribe, e-mail: opensuse+unsubscribe(a)opensuse.org To contact the owner, e-mail: opensuse+owner(a)opensuse.org

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