users September 2011

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279 participants
287 discussions

/var/cache/abrt-di
by Ranjan Maitra 07 Oct '11

07 Oct '11

Hi, Looking at my files and diskspace, I note the following: $ sudo du -sm /var/cache/* 1961 /var/cache/abrt-di 1 /var/cache/cups 1 /var/cache/fontconfig 1 /var/cache/foomatic 1 /var/cache/hald 1 /var/cache/jwhois 1 /var/cache/ldconfig 3 /var/cache/man 1 /var/cache/mash 1 /var/cache/PackageKit 217 /var/cache/yum Googling on how to reduce this abrt-di beast, I came up with the solution that you should delete the reports in the abrt GUI tool. But these are all deleted for me, and I think there must be a better way to remove this cache? Any suggestions on how to do this cleanly? Many thanks and best wishes, Ranjan

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F14, google-chrome won't launch after yum update
by Jackson Byers 06 Oct '11

06 Oct '11

$ uname -r 2.6.35.13-92.fc14.i686.PAE after a recent 'yum update', google-chrome won't launch. same response with updated 2.6.35.14-96.fc14.i686.PAE $ ls -l /opt/google/chrome/chrome -rwxr-xr-x. 1 root root 55207772 Sep 27 01:46 /opt/google/chrome/chrome $ /opt/google/chrome/chrome: error while loading shared libraries: cannot restore segment prot after reloc: Permission denied Advice? Jack

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Fedora 15: a NFSv4 to glusterfs migration HOW-TO
by Dr. Michael J. Chudobiak 06 Oct '11

06 Oct '11

As detailed in another thread, we upgraded a few test machines on our LAN to Fedora 15 (with gnome-shell and firefox), with user folders served from a NFSv4 server (F14 originally, then F15). It just didn't work. The F15 desktops would freeze frequently. And worse, this would freeze ALL desktops on the LAN intermittently, as the NFS server struggled with client flakiness. When it did work, Firefox would lose authenticated logins randomly, presumably due to corruption of its cookies.sqlite file. sqlite and NFS seems to be a nightmare, for both NFSv3 and NFSv4. Moving from a NFSv4 server to a glusterfs server solved all of these problems, and sped up boot times significantly too. glusterfs looks intimidating at first, because of all its fancy replicating features and what-not, but it turns out to be trivially easy to set up a simple server than will replace 95% of the NFS installations out there. Luckily, you can easily point both the NFS daemon and the glusterfs daemon at the same export folder, so you can migrate clients slowly over time. This HOW-TO is intended to document the process. There are other similar HOW-TOs out there, but they are all a little out-of-date or don't show how to enable locking correctly, which is critical for Firefox. In this example, we export the server's /fileserver folder, and mount it on /fileserver on the clients. In my server, /fileserver was already being served by the NFSv4 server, which is fine. -------------------------------------------- 1. On the server: - yum install glusterfs-server -------------------------------------------- 2. On each client: - yum install glusterfs-fuse - mkdir /etc/glusterfs/ - mkdir /fileserver -------------------------------------------- 3. On the server, edit the volume configuration file (/etc/glusterfs/glusterfsd.vol) so that it looks like this: volume raw type storage/posix option directory /fileserver end-volume volume brick type features/posix-locks subvolumes raw end-volume volume server type protocol/server option transport-type tcp subvolumes brick option auth.addr.brick.allow * end-volume The first stanza selects the basic folder to export. The second stanza adds file locking to it. This is required to support Firefox, and some other applications. The third stanza authorizes everyone to access this file-locked export over the network. There is also a /etc/glusterfs/glusterfsd.vol file on the system, for configuring the management interface. For this simple installation it does not need to be modified. -------------------------------------------- 4. Restart the server services: - service glusterd restart - service glusterfsd restart I believe the first service is a management service, and the second is the actual file-export service. -------------------------------------------- -------------------------------------------- 5. On the client, create the /etc/glusterfs/glusterfs.vol configuration file, which should look like this: volume client type protocol/client option transport-type tcp option remote-host 192.168.0.3 # use YOUR server IP here option remote-subvolume brick end-volume -------------------------------------------- 6. On the client, add this line to the end of /etc/rc.d/rc.local: mount -t glusterfs /etc/glusterfs/glusterfs.vol /fileserver -------------------------------------------- 7. On the client, reboot, and check /var/log/messages for errors. On one machine, we had an selinux problem that was flagged in the logs. We had to manually create the logging file using: touch /var/log/glusterfs/fileserver.log; reboot -------------------------------------------- 8. On the client, see if you can access the files in /fileserver. If not, read the /var/log/glusterfs/* files on both the client and the server. At this point, everything should work! Weird things and gotchas: A. You need the file-locking option to make Firefox work properly. B. LibreOffice wouldn't start on one system, until we did: rm ~/.libreoffice rm ~/.openoffice.org C. selinux prevented the creation of log files on one client, which prevented the filesystem from mouting. The manual fix noted above fixed that. D. This HOWTO mounts the glusterfs from /etc/rc.d/rc.local, which is the last step in the boot process. In theory, you can mount it from /etc/fstab or using autofs. However, we found that autofs mounting just didn't work - not sure why. fstab mounting didn't work either - I suspect it occurred too early in the boot process. /etc needs to be up and running so glusterfs can read the config file, and I don't think the current init/systemd files handle this correctly. There are some Debian bug reports about this that you can google. I hope this is useful to someone, and that we can finally drive a stake through the heart of NFS... - Mike

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Cannot boot properly: dbus problems?
by Nick Urbanik 05 Oct '11

05 Oct '11

Dear Folks, After a power surge and a spontaneous reboot, my 4-core F15 x86_64 machine has been unhappy. I have forced a selinux relabel, and a forcefsck. Symptoms: 1. The graphical boot did not complete: it started Nagios, but cupsd failed to start, and gdm did not start up. 2. I cannot log in on the text consoles; I can type the username, but no prompt appears for the password. 3. Attempts to use sudo just hang. 4. I can log in by ssh as either myself or as root. 5. named is using "97.5%" CPU, though when I turn on querylogging, there are very few lookups. 6. Attempts to start cups result in complaints about dbus: # systemctl start cups.service Failed to get D-Bus connection: Failed to authenticate in time. /var/log/messages says nothing of the matter. Now systemctl is new to me, and I am not sure how to diagnose this. I would be grateful for any suggestions. Where should I look for further clues? -- Nick Urbanik http://nicku.org 808-71011 nick.urbanik(a)optusnet.com.au GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24 I disclaim, therefore I am.

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Frostwire execution problem
by Mickey 02 Oct '11

02 Oct '11

F15 I installed frostwire and executed same and got error, can someone tell what this error message means. $ frostwire HOSTNAME IS BigOne Starting FrostWire... Java exec found in PATH. Verifying... Suitable java version found [java = 1.6.0_27] Configuring environment... Loading FrostWire: ls: cannot access lw*jar: No such file or directory ls: cannot access *jar: No such file or directory CLASSPATH SET TO: . Exception in thread "main" java.lang.NoClassDefFoundError: com/limegroup/gnutella/gui/Main Caused by: java.lang.ClassNotFoundException: com.limegroup.gnutella.gui.Main at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) Could not find the main class: com.limegroup.gnutella.gui.Main. Program will exit. ****************************************************************** Something went wrong with FrostWire. Maybe you're using the wrong version of Java? (FrostWire is tested against and works best with with Sun's JRE, Java 1.4+) The version of Java in your PATH is: java version "1.6.0_27" Java(TM) SE Runtime Environment (build 1.6.0_27-b07) Java HotSpot(TM) Server VM (build 20.2-b06, mixed mode)

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selinux is a pain
by Martín Marqués 02 Oct '11

02 Oct '11

I reinstalled (better hardware) a server and had selinux enabled (was disabled before), and I starting to see why so many people don't use selinux. My question is, how many people are using selinux? I, for instance, am about to disable it. -- Martín Marqués select 'martin.marques' || '@' || 'gmail.com' DBA, Programador, Administrador

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More liive linuux distributions available
by Aaron Konstam 01 Oct '11

01 Oct '11

I don't know when this happened but unetbootin-linux-555 is now available. This allows dozens of live Linux distributions to be downloaded onto a USB stick. The new version includes Fedora 15. The yum available unetbootin does not allow this. You can download it from: http://www.unetbootin.sourceforge.net This allowed me to download the latest Ubuntu version. I admit the interface as at leas as weird as Gnome 3. -- ======================================================================= Never leave anything to chance; make sure all your crimes are premeditated. ======================================================================= Aaron Konstam telephone: (210) 656-0355 e-mail: akonstam(a)sbcglobal.net

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Re: F14, google-chrome won't launch after yum update
by Jackson Byers 01 Oct '11

01 Oct '11

Daniel J Walsh replied >This is definitely something in SELinux. The current upstream google >chrome is a little strange from an SELinux point of view. Have you >tried chromium? >http://fedoraproject.org/wiki/Chromium well, no. Advice on this llist over last year or so is that google-chrome is better. I can always fall back on firefox.... At least I know my problem is Selinux. And in this case evidently something that can't be fixed. I would think this will be viewed by many fedora users as a real black mark on Selinux. Unless google-chrome is at fault. More detail on how I was running: from a backup copy of F!4 I had just done a yum update. If I now go back to my main F14 (and dont do the yum update) then google-chrome works as it has been. so it was some glltch in the yum update Jack

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How to get both T520 trackpoint and touchpad working in F15
by Alexander Volovics 01 Oct '11

01 Oct '11

I am trying to get both trackpoint and touchpad of the Lenovo T520 UltraNav working, preferably at the same time as under Windows 7. cat /proc/bus/input/devices shows: - SynPS/2 Synaptics Touchpad - TPPS/2 IBM Trackpoint After install of F15 the trackpoint works but not the touchpad. The scroll feature of the trackpoint (hold down middle button and move the stick) does not work. After installing 'gpointing-device-settings' the trackpoint can be configured so that scrolling with 'middle button & stick does work. I can however find no way to get the touchpad working. This would make scrolling much easier. Can anybody tell me the magic incantation. Alexander

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difference between "ping -I INTERFACE" and "ping -I IPADDRESS" ?
by Franta Hanzlík 30 Sep '11

30 Sep '11

(sorry if this mail arrive in this list once more, I sent it by mistake cca 90 minutes ago from unregistered e/mail address) hello Fedora networking gurus, I always thought that using ping with specifying source interface is exact equivalent as specifying its IP address - but it is evidently not true. What I'm getting on my Linux Fedora 14 i686 box: # ping -I 10.128.254.2 -c 3 -nn 90.183.38.60; echo -e '\n\n';\ > ping -I eth1 -c 3 -nn 90.183.38.60 PING 90.183.38.60 (90.183.38.60) from 10.128.254.2 : 56(84) bytes of data. 64 bytes from 90.183.38.60: icmp_req=1 ttl=56 time=4.66 ms 64 bytes from 90.183.38.60: icmp_req=2 ttl=56 time=12.7 ms 64 bytes from 90.183.38.60: icmp_req=3 ttl=56 time=4.50 ms --- 90.183.38.60 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2003ms rtt min/avg/max/mdev = 4.502/7.310/12.769/3.861 ms PING 90.183.38.60 (90.183.38.60) from 10.128.254.2 eth1: 56(84) bytes of data. >From 10.128.254.2 icmp_seq=1 Destination Host Unreachable >From 10.128.254.2 icmp_seq=2 Destination Host Unreachable >From 10.128.254.2 icmp_seq=3 Destination Host Unreachable --- 90.183.38.60 ping statistics --- 3 packets transmitted, 0 received, +3 errors, 100% packet loss, time 1999ms pipe 3 Interface eth1 has IP address 10.128.254.2 : # ip addr show 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo 2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ether 00:30:4f:39:4b:49 brd ff:ff:ff:ff:ff:ff inet 10.128.254.2/29 brd 10.128.254.7 scope global eth1 3: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:08:c7:25:c7:53 brd ff:ff:ff:ff:ff:ff inet 10.3.60.10/24 brd 10.3.60.255 scope global eth2 4: eth3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:08:c7:19:3b:94 brd ff:ff:ff:ff:ff:ff inet 10.0.1.254/24 brd 10.0.1.255 scope global eth3 5: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:1e:8c:94:05:cd brd ff:ff:ff:ff:ff:ff inet 192.168.0.254/24 brd 192.168.0.255 scope global eth0 6: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast state UNKNOWN qlen 3 link/ppp inet 90.187.57.21 peer 78.103.210.66/32 scope global ppp0 At all interfaces are only IPv4 addresses, they have not any IP aliases, iptables are stopped. eth1 is NATed 1:1 to public IP at ISP site. Know anyone why ping (from iputils-20100418-3.fc14.i686 package) behaves in such way? May this be somehow related with system routin tables? Thanks, Franta

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