Re: [CentOS] Broadcom Failure: Chg CentOS 6.0 to 5.7
On Wed, 21 Sep 2011 20:25:09 +, Michael D. Berger wrote: > After following various advice I received on other threads to get the > Broadcom wlan0 on my laptop to work I have still not succeeded. > Therefore I am changing from CentOS 6.0 to 5.7 . I think that I'll first > try the fix at: >http://elrepo.org/tiki/wl-kmod > on 5.7 . > > Anyone have a reason why I should proceed differently? > > Thanks, > Mike. FWIW I changed to 5.7, and had the same problems with Broadcom, which are detailed in previous threads, and I will not repeat. I tried several fixes, also mentioned in previous threads, and none worked. I must say, however, that I much prefer KDE 3 to KDE 4, so at least for now, I will stay with 5.7 . Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 5.7: stop level 3 beep
In my CentOS 5.7 laptop, I boot to level 3, and do startx to get KDE if I need it. I stopped the beeps at level 5, but how do I stop them at level 3? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 5.7: disable automatic updates
In CentOS 5.7, how do I disable automatic update checking? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Broadcom Failure: Chg CentOS 6.0 to 5.7
After following various advice I received on other threads to get the Broadcom wlan0 on my laptop to work I have still not succeeded. Therefore I am changing from CentOS 6.0 to 5.7 . I think that I'll first try the fix at: http://elrepo.org/tiki/wl-kmod on 5.7 . Anyone have a reason why I should proceed differently? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: "ip link" ignores wlan0
On Tue, 13 Sep 2011 01:50:41 +, Michael D. Berger wrote: > On Mon, 12 Sep 2011 21:01:50 +0000, Michael D. Berger wrote: > [...] > > This has been repaired by installing another driver. > > Mike. But wlan0 still doesn't work. Please see my thread: "CentOS 6, Broadcom, missing wlan0" ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, Broadcom, missing wlan0
On Mon, 12 Sep 2011 19:22:24 +, Michael D. Berger wrote: > On Mon, 12 Sep 2011 16:11:49 +0200, Nicolas Thierry-Mieg wrote: > >> Michael D. Berger wrote: >>> This is a continuation of my previous thread: >>> "Broadcom Wifi Problem" >> >> I didn't follow the whole thread, but have you tried building the nosrc >> rpm provided by elrepo? >> Instructions are very clear, and it worked fine for me a few months >> back for a new laptop (can't remember the brand or model) where I was >> installing C6 x86_64. >> http://elrepo.org/tiki/wl-kmod > [...] After doing a patch to get it to compile, I installed wl.ko from the older version: broadcom-sta_5.10.91.9.3.orig.tar.gz without changing anything else from the constructed rpm. I now get resulis from: ip link and the beginniongs of a connection. But I get: Error for wireless request "Set Encode" (8B2A) : SET failed on device wlan0 ; Invalid argument. Error for wireless request "Set Encode" (8B2A) : SET failed on device wlan0 ; Invalid argument. Yes, twice. Googing around I see that this is an old problem. I tried fiddling with the password. Sometimes the password is echoed in the error report, and sometimes not. I even tried a hex password. Nothing worked. More suggestions, or perhaps a better driver, would be much appreciated. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: "ip link" ignores wlan0
On Mon, 12 Sep 2011 21:01:50 +, Michael D. Berger wrote: > On my CentOS 6 laptop, in which the wireless hardware is known to be > functional (because it works in the WinXP partition): ># ip link > shows lo and eth0, but nothing else. > > Why might this be? > > Thanks, > Mike. This has been repaired by installing another driver. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: "ip link" ignores wlan0
On my CentOS 6 laptop, in which the wireless hardware is known to be functional (because it works in the WinXP partition): # ip link shows lo and eth0, but nothing else. Why might this be? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, Broadcom, missing wlan0
On Mon, 12 Sep 2011 16:11:49 +0200, Nicolas Thierry-Mieg wrote: > Michael D. Berger wrote: >> This is a continuation of my previous thread: >> "Broadcom Wifi Problem" > > I didn't follow the whole thread, but have you tried building the nosrc > rpm provided by elrepo? > Instructions are very clear, and it worked fine for me a few months back > for a new laptop (can't remember the brand or model) where I was > installing C6 x86_64. > http://elrepo.org/tiki/wl-kmod I followd the instructions at: http://elrepo.org/tiki/wl-kmod and I certainly saw some new stuff installed, and I am impressed with the approach to the copyright problem. I got as far as: # modprobe wl FATAL: Error inserting wl (/lib/modules/2.6.32-71.29.1.el6.i686/extra/wl/wl.ko): Unknown symbol in module, or unknown parameter (see dmesg) # dmesg wl: Unknown parameter `nohwcrypt' But I forgot the crypt library so I did: # modprobe -r b43 b43legacy ssb wl lib80211 # modprobe lib80211_crypt_tkip # modprobe wl FATAL: Error inserting wl (/lib/modules/2.6.32-71.29.1.el6.i686/extra/wl/wl.ko): Unknown symbol in module, or unknown parameter (see dmesg) #dmesg ... lib80211_crypt: unregistered algorithm 'NULL' lib80211: common routines for IEEE802.11 drivers lib80211_crypt: registered algorithm 'NULL' lib80211_crypt: registered algorithm 'TKIP' ... wl: Unknown parameter `nohwcrypt' I then googed around and did: insmod /lib/modules/2.6.32-71.29.1.el6.i686/extra/wl/wl.ko nohwcrypt=1 and it did -1: Unknown Symbol. Since this error is known to be related to the crypt libraries, I redid them. It didn't help, but just for grins I tried: insmod /lib/modules/2.6.32-71.29.1.el6.i686/extra/wl/wl.ko It retrurned no error. It seems that it got the nohwcrypt=1 once and doesn't want to see it again. I note that the hard drive partition is encrypted, in case this is relevant. BUT the problem posted in this OP of this thread still persists. Perhaps this installation is good, but wlan0 is still not seen. Here is my ifcfg-wlan0: DEVICE="wlan0" HWADDR="xx:xx:xx:xx:xx:xx" NM_CONTROLLED="no" ONBOOT="no" TYPE=wireless BOOTPROTO=dhcp IPV4_FAILURE_FATAL=yes NAME="System wlan0" WPA=yes USERCTL=yes IPV6INIT=no PEERDNS=yes ESSID="" CHANNEL=1 MODE=Auto RATE=Auto SECURITYMODE=restricted Thanks again for your suggestions, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6, Broadcom, missing wlan0
This is a continuation of my previous thread: "Broadcom Wifi Problem" Following a post from "James A. Peltier", who said: You can use the rpmforge version or compile it yourself. I've used this one with success using the details described earlier. http://www.broadcom.com/support/802.11/linux_sta.php I did however have to patch it with http://www.broadcom.com/docs/linux_sta/5_100_82_38.patch the driver built and installed fine. In fact, I'm using it on my laptop as we speak. On my CentOS 6, with BCM4311 802.11b/g. I installed: hybrid-portsrc_x86_32-v5_100_82_38.tar.gz With NetworkManager shut off, I see: #lsmod | grep "b43\|ssb\|wl" wl 2635904 0 lib802114858 1 wl and I try to start with: ifup wlan0 I put debug in the script, following into nested scripts, and see that it ultimately fails because: ip -o link fails to return wlan0 . I rechecked the MAC address, which is correct. Also ifconfig and iwconfig do not see wlan0 . Also, the wlan0 light on the box doesn't turn from red to green. If, however, I reenable b43, the light does turn green. Also, on this dual boot box, the WinXP partition runs WLAN0 with no problem. Thanks for your suggestions. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: ethernet "ifconfig up" failure
On Sun, 11 Sep 2011 20:21:21 -0400, Robert Spangler wrote: > On Sunday 11 September 2011 14:57, the following was written: > >> So why is "ifconfig eth0 up" not connecting? > > Have you tried 'ifup eth0'? I have now, it works fine. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: ethernet "ifconfig up" failure
On my CentOS 6 partition of my laptop: First note that for this test, NetworkManager is not running because I did: chkconfig --del NetworkManager and then rebooted. Here is my ifcfg-eth0: DEVICE="eth0" NM_CONTROLLED="no" ONBOOT=no HWADDR=xx:xx:xx:xx:xx:xx TYPE=Ethernet BOOTPROTO=none IPADDR=192.168.2.5 PREFIX=24 GATEWAY=192.168.2.1 DNS1=192.168.2.1 DNS2=192.168.2.1 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System eth0" UUID=---- I reboot to level3, do startx (to KDE 4) then do: # ifconfig eth0 up # ping 192.168.9.1 connect: Network is unreachable If I edit ifcfg-eth0 to set ONBOOT=yes and reboot, I get a proper connection. So why is "ifconfig eth0 up" not connecting? Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: Making KDE Default
On Wed, 07 Sep 2011 14:02:17 -0400, Scot P. Floess wrote: > Sorry for .xsession, I mean when you are in runlevel 3 and type > startx... However, in looking at my home directory, I see I have > .xsession symbolically linked to .xinitrc > > I think you want a ~/.xinitrc that looks like what I described for > .xsession > > I just did some googling - I couldn't remember the name of an app to > switch the desktops... Try yum installing switchdesk and switchdesk-gui > > I believe those will change your desktop for you (the default one)... > > [...] I did: mv .xsession .xinitrc and it worked. Thanks. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: Making KDE Default
On Wed, 07 Sep 2011 13:25:50 -0400, Scot P. Floess wrote: > In my ~/.xsession I have: > > #!/bin/bash > startkde > > > I think .xsession needs execute permission...can't remember (but thats > what I have mine set as)... > > Additionally, I believe that once you select KDE and login (under > runlevel 5), it remembers you chose that... > > > [...] It didn't remember. I didn't have a ~/.xsession so I created one as you describe. It didn't work. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: Making KDE Default
I learned from Anne that if I boot to level 5, after I enter the username, can select Gnome or KDE. I note that the default is always Gnome. How can I make the default KDE? How can I get KDE with startx after booting to level 3? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] pan reader and gmime
Running: yum list available | grep -i gmime shows results for CentOS 5, but not for CentOS 6. It seems to be needed by my pan. What should I do? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Tue, 06 Sep 2011 00:49:11 +0200, Milos Blazevic wrote: [...] > Mike, > > from what I can see in one of your earlier e-mails, you appear to be > dealing with BCM4311, which is in my experience one of least problematic > - worked out of the box on CentOS 6, however, ymmv. Anyway, it would be > useful if we could see the output of: > > lspci -nn > > just to confirm the exact Broadcom chip. > > Now, the manual at CentOS wiki used to be sufficent to make the WiFi > work (as eth1 or wlan0, regardless - although I always configured it as > eth1), sadly, this is not entirely true anymore. To be more precise, the > latest driver from Broadcom site doesn't work at all on CentOS 5 (tested > it not a month ago with BCM4311). So, in order to avoid paying to > DriverGuide.com, I can either send you a older version of a driver, or > you can download one from here: > > https://launchpad.net/ubuntu/maverick/+source/broadcom-sta/5.10.91.9.3-3 > > (I haven't tested the latter), and go through the installation manual > step by step. I haven't read Gytis' manual, but it should work in pretty > much the same was as the one on CentOS Broadcom Wiki - as he contributed > to the Wiki :-) > > Hopefully, I'll perform some more testing soon and remedy obsoleted > parts of the Wiki page as soon as the time permits. > > > P.S: > And yes, you should leave NetworkManger manage your network connections > for start, and stop meddling with wpa_supplicant and manual wireless > configuration - it'll save you time and nervs. So, just run: > > service network stop > service NetworkManager start > chkconfig network off > chkconfig NetworkManager on Downloading from the location that you suggest (which is an Ubunto location), I got: broadcom-sta_5.10.91.9.3.orig.tar.gz and running it: # pwd /root/broadcom/driver/broadcom-sta/i386 # make KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd` make[1]: Entering directory `/usr/src/kernels/2.6.32-71.29.1.el6.i686' LD /root/broadcom/driver/broadcom-sta/i386/built-in.o CC [M] /root/broadcom/driver/broadcom-sta/i386/src/wl/sys/wl_linux.o /root/broadcom/driver/broadcom-sta/i386/src/wl/sys/wl_linux.c: In function ‘wl_free’: /root/broadcom/driver/broadcom-sta/i386/src/wl/sys/wl_linux.c:705: error: implicit declaration of function ‘schedule’ make[2]: *** [/root/broadcom/driver/broadcom-sta/i386/src/wl/sys/ wl_linux.o] Error 1 make[1]: *** [_module_/root/broadcom/driver/broadcom-sta/i386] Error 2 make[1]: Leaving directory `/usr/src/kernels/2.6.32-71.29.1.el6.i686' make: *** [all] Error 2 So what is this ‘schedule’ thing? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos6 : Pan newsreader
Where can I get the latest pan newsreader that would work with KDE 4? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Tue, 06 Sep 2011 08:10:51 -0700, James A. Peltier wrote: > - Original Message - > | On Tue, 06 Sep 2011 02:28:03 -0700, James A. Peltier wrote: | > | > I didn't read the whole thread but you should make sure you | > > blacklist > | > the b43, bcm43xx and ssb drivers > | > > | > vi /etc/modprobe.d/broadcom-wl.conf | > > | > blacklist b43 > | > blacklist bcm43xx > | > blacklist ssb > | > > | > and also add intel_iommu=off to the kernel line in your grub | > > configuration. That works for my broadcom adapter | > > | > | I don't have a file /etc/modprobe.d/broadcom-wl.conf . | I do have > /etc/modprobe.d/blacklist.conf in which I put | what you suggest. Do you > think that will do, to should | I add a new file? > | > | Thanks, > | Mike. > > create it with the contents I listed and reboot. If running SELinux in > enforcing mode you may need to run restorecon on it. Done, still no action. Note that at present, ifconfig does not list wlan0. I am getting close to reinstalling the system (but because of travels related to my daughter's upcoming marriage, I probably won't be able to do that for several weeks). Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Tue, 06 Sep 2011 02:28:03 -0700, James A. Peltier wrote: > I didn't read the whole thread but you should make sure you blacklist > the b43, bcm43xx and ssb drivers > > vi /etc/modprobe.d/broadcom-wl.conf > > blacklist b43 > blacklist bcm43xx > blacklist ssb > > and also add intel_iommu=off to the kernel line in your grub > configuration. That works for my broadcom adapter > I don't have a file /etc/modprobe.d/broadcom-wl.conf . I do have /etc/modprobe.d/blacklist.conf in which I put what you suggest. Do you think that will do, to should I add a new file? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Tue, 06 Sep 2011 00:49:11 +0200, Milos Blazevic wrote: > Michael D. Berger wrote: >> On Mon, 05 Sep 2011 16:54:59 -0400, b.j. mcclure wrote: [...] >> >>> Your firmware appears to be installed and the wl driver you compiled >>> appears to be loaded. If the driver and firmware are compatible then >>> I would check that Network Manager is running and Networking and >>> Wireless Networking are enabled in the NM applet. Network Manager >>> should create an auto- configuration file in >>> /etc/sysconfig/network-scripts. >>> >>> If that all looks o.k. I'll have to pass the baton to someone that may >>> have experience with your driver. >>> >>> The stock driver (b43) does work on my machine although on some >>> routers dhcp does not work and I have had to configure a static IP to >>> get a connection. ymmv. >>> >>> B.J. >>> >>> CentOS Linux release 6.0 (Final) >>> >>> >> My NetworkManager doesn't work (that's another problem, but low >> priority), and it is my intention to use wpa_supplicant and dhclient >> from the command line. But obviously, if I can't see anything with >> ifconfig, I can't do that. ifconfig did work before I made the changes. >> With regard do compatibility between the firmware and the driver, I >> could not say. Maybe that is the problem. >> >> Thanks for your help. >> Mike. >> >> ___ CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos >> >> > Mike, > > from what I can see in one of your earlier e-mails, you appear to be > dealing with BCM4311, which is in my experience one of least problematic > - worked out of the box on CentOS 6, however, ymmv. Anyway, it would be > useful if we could see the output of: > > lspci -nn > > just to confirm the exact Broadcom chip. > > Now, the manual at CentOS wiki used to be sufficent to make the WiFi > work (as eth1 or wlan0, regardless - although I always configured it as > eth1), sadly, this is not entirely true anymore. To be more precise, the > latest driver from Broadcom site doesn't work at all on CentOS 5 (tested > it not a month ago with BCM4311). So, in order to avoid paying to > DriverGuide.com, I can either send you a older version of a driver, or > you can download one from here: > > https://launchpad.net/ubuntu/maverick/+source/broadcom-sta/5.10.91.9.3-3 > > (I haven't tested the latter), and go through the installation manual > step by step. I haven't read Gytis' manual, but it should work in pretty > much the same was as the one on CentOS Broadcom Wiki - as he contributed > to the Wiki :-) > > Hopefully, I'll perform some more testing soon and remedy obsoleted > parts of the Wiki page as soon as the time permits. > > > P.S: > And yes, you should leave NetworkManger manage your network connections > for start, and stop meddling with wpa_supplicant and manual wireless > configuration - it'll save you time and nervs. So, just run: > > service network stop > service NetworkManager start > chkconfig network off > chkconfig NetworkManager on Milos, My NetworkManager doesn't. As I mentioned on another thread, when I go to: System Settings > Network Settings > Network Settings I get a window that says "Your Platform is Not Supported" and offers me a list of Linus systems, none of which are appropriate. Since I should be able to run from the command line, I have given it a low priority. But I would reconsider if a fix is suggested. I will download from the link you provided and try again. The data you asked for are appended Thanks for your help. Mike. lspci -nn: 00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03) 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/ GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03) 00:02.1 Display controller [0380]: Intel Corporation Mobile 945GM/GMS/ GME, 943/940GML Express Integrated Graphics Controller [8086:27a6] (rev 03) 00:1b.0 Audio device [0403]: Intel Corporation N10/ICH 7 Family High Definition Audio Controller [8086:27d8] (rev 02) 00:1c.0 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 1 [8086:27d0] (rev 02) 00:1c.1 PCI bridge [0604]: Intel Corporation N10/ICH 7 Family PCI Express Port 2 [8086:27d2] (rev 02) 00:1d.0 USB Controller [0c03]: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 [8086:27c8] (rev 02) 00:1d.1 USB Controller [0c03]: Intel Corp
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 16:54:59 -0400, b.j. mcclure wrote: [...] > Your firmware appears to be installed and the wl driver you compiled > appears to be loaded. If the driver and firmware are compatible then I > would check that Network Manager is running and Networking and Wireless > Networking are enabled in the NM applet. Network Manager should create > an auto- configuration file in > /etc/sysconfig/network-scripts. > > If that all looks o.k. I'll have to pass the baton to someone that may > have experience with your driver. > > The stock driver (b43) does work on my machine although on some routers > dhcp does not work and I have had to configure a static IP to get a > connection. ymmv. > > B.J. > > CentOS Linux release 6.0 (Final) My NetworkManager doesn't work (that's another problem, but low priority), and it is my intention to use wpa_supplicant and dhclient from the command line. But obviously, if I can't see anything with ifconfig, I can't do that. ifconfig did work before I made the changes. With regard do compatibility between the firmware and the driver, I could not say. Maybe that is the problem. Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 20:22:23 +, Michael D. Berger wrote: > [...] > > I note that instructions indicated that I should modify > >/etc/modprobe.conf > > to contain: > >alias eth1 wl > > Since I don't have that file, I grepped around and decided that the file > to use is probably: > >/etc/modprobe.d/dist.conf > > So in that file I put: > >alias wlan0 > > With regard to the library, I tried several things, the latest being: > >alias iee80211_crypt_tkip lib80211 > > Might there be a problem herein? > > Thanks, > Mike. Correction (typeo): alias wlan0 wl ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
[...] I note that instructions indicated that I should modify /etc/modprobe.conf to contain: alias eth1 wl Since I don't have that file, I grepped around and decided that the file to use is probably: /etc/modprobe.d/dist.conf So in that file I put: alias wlan0 With regard to the library, I tried several things, the latest being: alias iee80211_crypt_tkip lib80211 Might there be a problem herein? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 19:55:40 +, Michael D. Berger wrote: > [...] > > I note that if I do: >/etc/init.d/network restart > wlan0 is does not appear in the output. > > Mike. But if I modify ifcfg-wlan0 so that wlan0 should start on boot, /etc/init.d/network restart results in "...wlan0:...No suitable device found..." Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
[...] I note that if I do: /etc/init.d/network restart wlan0 is does not appear in the output. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 20:39:48 +0200, Nicolas Thierry-Mieg wrote: [...] > > maybe here: > http://wiki.centos.org/HowTos/Laptops/Wireless/Broadcom?action=show > > good luck Thanks, but no luck so far. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 14:59:28 -0400, b.j. mcclure wrote: > On Mon, 2011-09-05 at 18:26 +0000, Michael D. Berger wrote: >> On Mon, 05 Sep 2011 14:11:21 -0400, b.j. mcclure wrote: >> >> [...] >> > >> > I would start with native packages in CentOS 6 and if operation is >> > unsatisfactory then seek another solution. >> >> Yes, the native packages didn't work and I am mow seeking "another >> solution". They did show the presence of wlan0, but they would not >> connect. >> >> Mike. > > Could you please post the output of the following: > > rpm -qa | grep fwcutter > > lspci > > lsmod > > Thanks. > > B.J. > Thanks for your interest. I hope it is not more than you expected. rpm -qa | grep fwcutter: b43-fwcutter-012-2.2.el6.i686 lspci: 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 02) 00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA IDE Controller (rev 02) 00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 02) 02:00.0 Network controller: Broadcom Corporation BCM4311 802.11b/g WLAN (rev 01) 05:05.0 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller 05:05.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19) 05:05.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 01) 05:05.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 0a) 05:05.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05) 05:08.0 Ethernet controller: Intel Corporation PRO/100 VE Network Connection (rev 02) lsmod: Module Size Used by sit 8292 0 tunnel4 2089 1 sit sunrpc197617 1 cpufreq_ondemand8454 2 acpi_cpufreq7416 1 nf_conntrack_ipv4 7700 29 nf_defrag_ipv4 1013 1 nf_conntrack_ipv4 ipt_REJECT 1905 1 ipt_LOG 4835 9 xt_iprange 1842 2 iptable_filter 2147 1 ip_tables 9541 1 iptable_filter ip6t_REJECT 3961 2 nf_conntrack_ipv6 16198 2 xt_state1006 31 nf_conntrack 66010 3 nf_conntrack_ipv4,nf_conntrack_ipv6,xt_state ip6table_filter 2219 1 ip6_tables 10809 1 ip6table_filter ipv6 264890 37 sit,ip6t_REJECT,nf_conntrack_ipv6 dm_mirror 11620 0 dm_region_hash 10127 1 dm_mirror dm_log 8520 2 dm_mirror,dm_region_hash wmi 5189 0 e100 27825 0 mii 4289 1 e100 sg 24778 0 i2c_i8019222 0 iTCO_wdt9324 0 iTCO_vendor_support 2382 1 iTCO_wdt wl 2635904 0 lib802114858 1 wl snd_hda_codec_conexant28491 1 snd_hda_intel 21333 3 snd_hda_codec 70277 2 snd_hda_codec_conexant,snd_hda_intel snd_hwdep 5320 1 snd_hda_codec snd_seq46091 0 snd_seq_device 5354 1 snd_seq snd_pcm67225 2 snd_hda_intel,snd_hda_codec snd_timer 18308 2 snd_seq,snd_pcm snd52754 14 snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_seq,snd_seq_device,snd_pcm,snd_timer soundcore 6460 1 snd snd_page_alloc 7080 2 snd_hda_intel,snd_pcm ext4 322671 3 mbcache 5918 1 ext4 jbd2 73876 1 ext4 aes_i5867208 2 aes_generic26803 1 aes_i586 xts 1907 1 gf128mul7923 1 xts dm_crypt 1084
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 14:11:21 -0400, b.j. mcclure wrote: [...] > > I would start with native packages in CentOS 6 and if operation is > unsatisfactory then seek another solution. Yes, the native packages didn't work and I am mow seeking "another solution". They did show the presence of wlan0, but they would not connect. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Broadcom Wifi Problem
On Mon, 05 Sep 2011 13:47:43 -0400, b.j. mcclure wrote: [...] > > Maybe you need to install the firmware? My laptop still uses the b43 > driver but not entirely w/o issue. > > # yum search b43 > [...] The instructions mentioned above include removing b43 and replacing it with something downloaded from Broadcom. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Broadcom Wifi Problem
I have a Broadcom 802.11b/g hardware on my dual-boot laptop. Note first that in the WinXP partition, the wifi makes DHCP connections to my router with no problem. Since this was not working in my new CentOS 6 partition, and remembering that there was a driver problem with the old Fedora partition it replaced, I followed instructions founs at: http://repecka.net/en/2011/04/19/install-broadcom-bcm4311-802-11bg-wlan- drivers-on-centos/ and http://www.broadcom.com/docs/linux_sta/README.txt modifying for that fact that I use wlan0 rather than eth1. The wifi is now dead-in-the-water. The wlan light now remains red, and neither ifconfig nor iwconfig show any sign of wlan0 (contra to the situation before I installed the new driver). It still works in the WinXP partition. Suggestions for my next step in fixing this would be most welcome. Thank, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 6, KDE 4: canot manage network
On Fri, 02 Sep 2011 01:04:14 +, Michael D. Berger wrote: [...] > > It is a laptop. I have not been able to get it to work on the command > line. Perhaps it would help if I remove NetworkManager? Also, there is > probably not enough in my ifcfg-wlan0. I can see what is my ifcfg-eth0, > but what do I put if the network is unknown (I am traveling) or I am > using DHCP? Do you have a reference I can read? > > Thanks, > Mike. I found some stuff that looks helpful on the web; I'll try it tomorrow (-0400). Since it involves stopping wpa_supplicant, I will have to stop NetworkManager, possibly with yum remove, unless I can find another way. Most important is the command dhclient, which is used at the end of the sequence. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 6, KDE 4: canot manage network
On Thu, 01 Sep 2011 16:03:35 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: > Michael D. Berger wrote: >> On Thu, 01 Sep 2011 14:33:16 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw >> wrote: [...] >>> >>> ACK! Hedwig is about 10 years old. History: RH 1,2,3,4,5 (where I >>> started using RH), 5.2,6 (Hedwig),7,7.1,7.2,7.3,8,9 (Shrike), >>> RHEL1?2?,RHEL 3,RHEL 4, RHEL 5, and just this year, RHEL 6. >>> >>> Something's wrong with your GUI options. Why not do it from the >>> command line? >> >> Is it just my GUI options, or is KDE 4 bad? Is any one else succeeding >> with CentOS 6 and KDE 4? > > No idea - never used the GUI, literally. The most I've every used that > was "GUI" (for small values of GUI), was system-config-network. >> >> I guess ifconfig and iwconfig are the commands to use. Right? > > Is this on a laptop, or are you hardwired? If the latter, you can just > edit /etc/sysconfig/network and > /etc/sysconfig/network-scripts/ifcfg-eth0, then restart the network. >> >> Also, in view of all the problems I am having, perhaps I should drop >> back to CentOS 5.6. What do you think? > > Don't see why, unless you absolutely don't want to deal with the network > other than through that GUI. > > Btw, if you close that "your system is not supported", you can go to the > rightmost tab and add a new profile. I'm *NOT* going to try that out on > my system here at work, but I'll wager that you can then edit the other > tabs. > > mark It is a laptop. I have not been able to get it to work on the command line. Perhaps it would help if I remove NetworkManager? Also, there is probably not enough in my ifcfg-wlan0. I can see what is my ifcfg-eth0, but what do I put if the network is unknown (I am traveling) or I am using DHCP? Do you have a reference I can read? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 6, KDE 4: canot manage network
On Thu, 01 Sep 2011 14:33:16 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: [...] > > ACK! Hedwig is about 10 years old. History: RH 1,2,3,4,5 (where I > started using RH), 5.2,6 (Hedwig),7,7.1,7.2,7.3,8,9 (Shrike), > RHEL1?2?,RHEL 3,RHEL 4, RHEL 5, and just this year, RHEL 6. > > Something's wrong with your GUI options. Why not do it from the command > line? > > mark Is it just my GUI options, or is KDE 4 bad? Is any one else succeeding with CentOS 6 and KDE 4? I guess ifconfig and iwconfig are the commands to use. Right? Also, in view of all the problems I am having, perhaps I should drop back to CentOS 5.6. What do you think? Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Centos 6, KDE 4: canot manage network
On Thu, 01 Sep 2011 13:03:07 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: > Michael D. Berger wrote: >> In KDE 4, I click: >> >> Kickoff > System Settings > Network & Connectivity > >>Network Settings > Network Settings >> >> I get a popup informing me that my system is not supported. (This did >> not happen before.) I am offered choices. I choose RedHat 6.0 (Is this >> wrong? I also tried RedHat 9.0.). > > Use RHEL 6. RH 9 was before RH started RHEL. >> >> I select Network Interfaces. I see nothing on the list *** even though >> I am presently running eth0 and can successfully ping google.com >> through it.***. > > Are you running this as root, or did it ask for root's password? > mark I see "Red Hat Linux 6.0 Hedwig", I see no "RHEL" on the list. Is this missing? I am root. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos 6, KDE 4: canot manage network
In KDE 4, I click: Kickoff > System Settings > Network & Connectivity > Network Settings > Network Settings I get a popup informing me that my system is not supported. (This did not happen before.) I am offered choices. I choose RedHat 6.0 (Is this wrong? I also tried RedHat 9.0.). I select Network Interfaces. I see nothing on the list *** even though I am presently running eth0 and can successfully ping google.com through it.***. Now I set that interface using a GUI just a few days ago. I will say, the GUI looks different. So what's happening? Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, KDE 4: bad DNS traffic
On Wed, 31 Aug 2011 18:22:42 +, Michael D. Berger wrote: > On my new CentOS 6, KDE 4, running WireShark I see what appears to be > frequent nonsensical DNS queries, for example: >"settings-personal.desktop" and "settings-system.desktop". > The DNS response is always:"No such name". Do tell! These appear > especially when I click on things on the KDE menus. On my old CentOS 5 > box, on the same LAN, I see no such thing. I note that I have replaced > the original /etc/hosts with my own. Might these have been resolved in > the original? > > Thanks for your comments. > Mike. Please see: gmane.comp.kde.general, thread: "Bad DNS Query for Date & Time" for additional information on this matter. The problem has not, as yet, been solved. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, KDE 4: bad DNS traffic
On Wed, 31 Aug 2011 18:22:42 +, Michael D. Berger wrote: > On my new CentOS 6, KDE 4, running WireShark I see what appears to be > frequent nonsensical DNS queries, for example: >"settings-personal.desktop" and "settings-system.desktop". > The DNS response is always:"No such name". Do tell! These appear > especially when I click on things on the KDE menus. On my old CentOS 5 > box, on the same LAN, I see no such thing. I note that I have replaced > the original /etc/hosts with my own. Might these have been resolved in > the original? > > Thanks for your comments. > Mike. It appears that the peculiar URLs in the DNS queries are the name of files that appear in the directory: /usr/share/kde4/services/ I looked at a few with vi, and they appear to be lists of words for concepts in numerous languages. Does this help in determining why they should appear as URLs in DNS queries? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, KDE 4: bad DNS traffic
On Wed, 31 Aug 2011 16:19:05 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: > Michael D. Berger wrote: >> On Wed, 31 Aug 2011 20:02:09 +0100, John Hodrien wrote: >>> On Wed, 31 Aug 2011, Michael D. Berger wrote: >>> >>>> On my new CentOS 6, KDE 4, running WireShark I see what appears to be >>>> frequent nonsensical DNS queries, for example: >>>> "settings-personal.desktop" and "settings-system.desktop". >>>> The DNS response is always:"No such name". Do tell! These appear >>>> especially when I click on things on the KDE menus. On my old CentOS >>>> 5 box, on the same LAN, I see no such thing. I note that I have >>>> replaced the original /etc/hosts with my own. Might these have been >>>> resolved in the original? >>> >>> Random stab in the dark... >>> >>> Are you running the autofs with /net or similar configured? >> >> How would I know? I get nothing from: ps -ef | grep -i autofs >> yum -y list installed | grep -i autofs > > Does rpm -qi autofs show nothing? If so, I'm a tad surprised, since that > takes care of not only nfs but also CD/DVDs and USB keys. > > mark Running: rpm -qi autofs shows: package autofs not installed at levels 3 and 5. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6, KDE 4: bad DNS traffic
On Wed, 31 Aug 2011 20:02:09 +0100, John Hodrien wrote: > On Wed, 31 Aug 2011, Michael D. Berger wrote: > >> On my new CentOS 6, KDE 4, running WireShark I see what appears to be >> frequent nonsensical DNS queries, for example: >> "settings-personal.desktop" and "settings-system.desktop". >> The DNS response is always:"No such name". Do tell! These appear >> especially when I click on things on the KDE menus. On my old CentOS 5 >> box, on the same LAN, I see no such thing. I note that I have replaced >> the original /etc/hosts with my own. Might these have been resolved in >> the original? > > Random stab in the dark... > > Are you running the autofs with /net or similar configured? > > jh How would I know? I get nothing from: ps -ef | grep -i autofs yum -y list installed | grep -i autofs Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6, KDE 4: bad DNS traffic
On my new CentOS 6, KDE 4, running WireShark I see what appears to be frequent nonsensical DNS queries, for example: "settings-personal.desktop" and "settings-system.desktop". The DNS response is always:"No such name". Do tell! These appear especially when I click on things on the KDE menus. On my old CentOS 5 box, on the same LAN, I see no such thing. I note that I have replaced the original /etc/hosts with my own. Might these have been resolved in the original? Thanks for your comments. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] selinux & iptables
In setting up my new CentOS 6 laptop, I replaced /etc/sysconfig/iptables with my own, very restrictive version. I then tried to restart the iptables daemon, but it reported that my new iptables was unreadable. On a guess, I disabled selinux, and my problem was solved. Later, I re-enabled selinux and on reboot, it had to go through a very long setup procedure. Is there something better I could have done when replacing iptables, so that I would not have to disable selinux? Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Upstart file format
On Tue, 30 Aug 2011 09:57:22 +0800, Christopher Chan wrote: > On Tuesday, August 30, 2011 09:51 AM, Michael D. Berger wrote: >> Where can I find documentation on the new format of the files in >> /etc/init.d/? > > You mean /etc/event.d? Upstart...I thought Centos 6 uses systemd? > > >> Thanks, >> Mike. >> >> ___ CentOS mailing list >> CentOS@centos.org >> http://lists.centos.org/mailman/listinfo/centos On my new Centos 6, if you type: man init it mentions: "init - Upstart process management daemon" Also, if you look at a file in /etc/init.d/, you can see that there is a new file format. It is the documentation of this new format that I would like to read. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upstart file format
Where can I find documentation on the new format of the files in /etc/init.d/? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6: wpa_supplicant, unexpected behavior
On Mon, 29 Aug 2011 19:36:13 -0400, Scott Robbins wrote: > On Mon, Aug 29, 2011 at 10:35:18PM +0000, Michael D. Berger wrote: >> On my CentOS 6: >>chkconfig --list wpa_supplicant >> shows off at all levels, which is confirmed by examination of: >>/etc/init.d/wpa_supplicant >> but ps -ef shows the process running. Furthermore, repeated >>cd /etc/init.d/ >>./wpa_supplicant stop >> appears to succeed, but the process continues to run. These >> observations were made at levels 3 and 5. >> >> > Are you using NetworkManager? It probably starts wpa_supplicant. Have > you ever noticed, on a Gnome desktop, how you have to specifically > uncheck enable wireless? Yes, I am using NetworkManager, and, as I forgot to mention, KDE. But I see that NetworkManager starts at level 2. (BTW, I also see that the scripts in /etc/init.d have a new format for specifying start and stop levels.) Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: wpa_supplicant, unexpected behavior
On my CentOS 6: chkconfig --list wpa_supplicant shows off at all levels, which is confirmed by examination of: /etc/init.d/wpa_supplicant but ps -ef shows the process running. Furthermore, repeated cd /etc/init.d/ ./wpa_supplicant stop appears to succeed, but the process continues to run. These observations were made at levels 3 and 5. Thanks in advance for your explanation. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: bootup display
On my old CentOS 5, when it boots up (to level 3) it displays a line for each of the things it is starting as it does it. I found that quite useful. On my new CentOS 6, while it is booting up, it displays a useless CentOS trademark picture. Is there a way to get the old kind of display in CentOS 6? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6: add icon to desktop
On my old CentOS 5 KDE, if I add a link to ~/Desktop, it appears on the desktop as an icon. But on my new CentOS 6 KDE, this does not work. How can I make it work? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6, KDE: panel appearance
On CentOS 6.0 KDE is there a way to change the Panel appearance (color, pattern, etc.)? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos 6: howto install and run KDE
On my laptop, I have not been able to get KDE to run; I always get gnome. I installed selecting KDE, and I tried yum groupinstall, which appeared to work, but I still get gnome running. BTW, I boot to level 3, and run startx. Thanks for your suggestions. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 KDE: remove default icons
On Thu, 25 Aug 2011 08:57:50 -0700, John Doe wrote: [...] > > Since you seem to be using Gnome and not KDE, you can google for "gnome > hide dekstop icons", and the first answer will tell you how to hide > those system icons (gconf-editor). But first reinstall nautilus. > > JD With the help of: ps -ef | grep -i gnome ps -ef | grep -i kde I determined that I am in fact running gnome. I am therefore reinstalling the system, selecting kde (as I did before) and deselecting (I hope) all gnome things. Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 KDE: remove default icons
On Thu, 25 Aug 2011 08:00:16 -0700, John Doe wrote: > From: Michael D. Berger > > >> On my newly installed CentOS 6 I am running KDE (I think; I selected it >> in the setup, but how would I know?). > > Only God would know... > >> It has three default icons: >> Computer; Root's Home; Trash. I do not see them in /root/Desktop. How >> can I remove them? > > Did you go look into the Desktop controls...? There must be something > like "Show icons on desktop" somewhere... Or you could maybe google for > something like: "kde hide desktop icons"... > > JD Yes, I found the control. But it doesn't include the default icons. I "solved" the problem with: yum remove nautilus But now, when I put a directory in /root/Desktop, it does not appear on the desktop. I am now looking for a another file manager -- perhaps the one used in my older CentOS. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] level 3 font size
On my laptop, I boot CentOS 6 to level 3and find the font is quite small. Is there a way to change the font size at level 3? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6 KDE: remove default icons
On my newly installed CentOS 6 I am running KDE (I think; I selected it in the setup, but how would I know?). It has three default icons: Computer; Root's Home; Trash. I do not see them in /root/Desktop. How can I remove them? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] random roundoff?
On my CentOS 5 box, in a C++ program that does much arithmetic, including numerous matrix multiplications, I have a situation in in which the result depends on the nature of nearby I/O. Thus, with all arithmetic done with type double, and where values are mostly in the range [-1.0e0,+1.0e0] or nearby, I do: cerr << "some stuff" << endl; mat3 = matmult(mat1,mat2); I get a difference of the order 1.0e-15 depending on whether the cerr line does or does not end in "endl" as shown. I am imagining that there is some "randomness" in the roundoff that depends on the I/O situation. Is this credible? Any other suggestions? Thanks for your help, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repeated local ephemeral to 80
On Fri, 01 Apr 2011 22:10:58 +0200, Markus Falb wrote: [...] >> Mar 29 17:27:20 mbrc20 kernel: IPT-DROP IN= OUT=lo SRC=192.168.9.20 >> DST=192.168.9.20 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=46910 DF PROTO=TCP >> SPT=56624 DPT=80 WINDOW=32792 RES=0x00 SYN URGP=0 OPT >> (0204400C0402080A4A26F7A501030307) UID=0 >> [...] > Too restrictive > OUT=lo > This is the loopback device! > Add a rule that allows traffic from and to lo What sort of thing might be using it? It only shows up every day or two. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repeated local ephemeral to 80
On Fri, 01 Apr 2011 17:55:37 +0200, Nicolas Thierry-Mieg wrote: [...] > > you might be able to see the process with netstat when it's happening. I tried that; so far without success. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repeated local ephemeral to 80
On Fri, 01 Apr 2011 11:32:16 -0400, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: > Michael D. Berger wrote: [...] > > Not great on this, but *if* I understand it, it's saying that the IP > address of your server is 192.168.9.20, and it's talking to itself, at > destination port 80 - apache, that would be. > > mark Yes, that is true, but the question is "who is doing the talking?". Another block of them just ended. It lasted just under an hour. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] repeated local ephemeral to 80
On my CentOS box that I use mainly as a web server, I have iptables set to log and reject anything that I don't expect. So lately, I have getting things like this: Mar 29 17:27:20 mbrc20 kernel: IPT-DROP IN= OUT=lo SRC=192.168.9.20 DST=192.168.9.20 LEN=60 TOS=0x00 PREC=0x00 TTL=64 ID=46910 DF PROTO=TCP SPT=56624 DPT=80 WINDOW=32792 RES=0x00 SYN URGP=0 OPT (0204400C0402080A4A26F7A501030307) UID=0 that on at least one occasion repeated for every few seconds for more than three hours. The ephemeral source port keeps changing in an irregular manner. Any suggestions? Thanks, Mike ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] top and allocation issues
On Thu, 03 Mar 2011 15:03:34 -0500, Stephen Harris wrote: > On Thu, Mar 03, 2011 at 07:55:57PM +0000, Michael D. Berger wrote: [...] > > /proc/sys/vm/overcommit_memory > (or sysctl vm.overcommit_memory) > >>From the kernel Documentation: > > This value contains a flag that enables memory overcommitment. > > When this flag is 0, the kernel attempts to estimate the amount of free > memory left when userspace requests more memory. > > When this flag is 1, the kernel pretends there is always enough memory > until it actually runs out. > > When this flag is 2, the kernel uses a "never overcommit" policy that > attempts to prevent any overcommit of memory. > > This feature can be very useful because there are a lot of programs that > malloc() huge amounts of memory "just-in-case" and don't use much of it. > > The default value is 0. > It appears that option 2 would be the best for me, so I set: sysctl vm.overcommit_memory=2 However, it resets to 0 on reboot, and only root can reset it. It would be good if it would be set to 2 on reboot. Is there a good way to do this? I suppose I could put something in /etc/init.d/ if there is no better way. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] top and allocation issues
On Thu, 03 Mar 2011 15:03:34 -0500, Stephen Harris wrote: > > /proc/sys/vm/overcommit_memory > (or sysctl vm.overcommit_memory) > >>From the kernel Documentation: > > This value contains a flag that enables memory overcommitment. > > When this flag is 0, the kernel attempts to estimate the amount of free > memory left when userspace requests more memory. > > When this flag is 1, the kernel pretends there is always enough memory > until it actually runs out. > > When this flag is 2, the kernel uses a "never overcommit" policy that > attempts to prevent any overcommit of memory. > > This feature can be very useful because there are a lot of programs that > malloc() huge amounts of memory "just-in-case" and don't use much of it. > > The default value is 0. > I just wrote a sequence of values (kk % 256) and (after changing to unsigned char) read back successfully. I did see some action in top. Now given my numbers, it would seem that I am "overcommitted". Leaving the flag you mention at 0 (which it is), do I run a risk of a later failure? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] top and allocation issues
On Thu, 03 Mar 2011 14:38:52 -0500, Brunner, Brian T. wrote: [...] > > Holy RAMbo, batman! How many GB of RAM do you intend to allocate? Once > you allocate 2GB like you did, you MUST be running a bigmem or x64 > kernel to allocate another 2GB. > > You won't see 'new'd memory as "taken" in top(8) because malloc() is a > bug. Bits are set in a page table, but no memory is actually written > to, and nothing really changes, until the program attempts to write. > What you did was fall off the end of a bit string keeping track of > malloc()'d pages, that's all. > > (ps mark, the ++jj or jj++ takes place after the first loops' action, > not before .:. ++jj and jj++ have identical effect). > > Insert spiffy .sig here [...] Yes, I do expect to do a bit of arithmetic. I will need several blocks of about 0.5G, and I am checking the limits. Is it true, then, that I won't really know if I succeeded with the allocation until I try to write the memory? What will happen then? Is there a way to check without actually writing? Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] top and allocation issues
On Thu, 03 Mar 2011 14:34:13 -0500, m.roth-x6lchVBUigD1P9xLtpHBDw wrote:
> Michael D. Berger wrote:
>> In a context where exceptions are caught, I ran the fragment:
>>
>>cerr << "allocating" << endl;
>>char*arr[100];
>>for (int jj = 0; jj < 10; ++jj)
>>{
>
>> Wherein do I err?
>
> It would have been caught on 0 if that was jj++, *not* ++jj (increment
> *after* the loop, not before).
>
> mark
I believe that this is incorrect. Any item in the third position
of a for(;;) is executed after the body of the loop. In this
case ++jj and jj++ don't make any difference (except that perhaps
++jj is a little faster). In any case, the delays observed indicate
that there was one allocation.
Mike.
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Re: [CentOS] fast processing and buffering
On Wed, 02 Mar 2011 22:24:00 -0800, Charles Polisher wrote: > Kwan Lowe wrote: [...] > > You might explore what vmstat says about disk activity during an initial > vs follow-on run. Also, I wonder what "top" shows in the WCHAN and nFLT > columns. The problem is OBE since I added some real processing to the code, and I no longer get the apparent buffering. But please see my new thread: "top and allocation issues". Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] top and allocation issues
In a context where exceptions are caught, I ran
the fragment:
cerr << "allocating" << endl;
char*arr[100];
for (int jj = 0; jj < 10; ++jj)
{
cerr << "jj = " << jj << endl;
arr[jj] = new char[20];
sleep (30);
}
sleep (10);
for (int jj = 0; jj < 10; ++jj)
delete[] arr[jj];
cerr << "deleted" << endl;
The exception was caught with jj = 1, i.e., on the second allocation.
But on top, I see:
top - 14:08:46 up 5:21, 10 users, load average: 0.04, 0.06, 0.08
Tasks: 158 total, 1 running, 157 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.7%us, 2.0%sy, 0.0%ni, 94.5%id, 0.6%wa, 0.1%hi, 0.1%si,
0.0%st
Mem: 1941908k total, 1231804k used, 710104k free, 138372k buffers
Swap: 3899384k total,0k used, 3899384k free, 876020k cached
and the "710104k free" suggests that I should have failed on the first
allocation. Furthermore, the allocation did not alter the values
in top (except for a little jitter).
Wherein do I err?
[~]$ uname -a
Linux x 2.6.18-194.32.1.el5 #1 SMP Wed Jan 5 17:53:09 EST 2011 i686
i686 i386 GNU/Linux
Thanks,
Mike.
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[CentOS] fast processing and buffering
I have a C++ program that opens, gets a little data from, and closes about 5000 files. Now if I run the program when I first boot up, the running time is from about 10 seconds to a minute. Subsequently, the program runs in well inter one second. Buffering -- right? So I changed a parameter, so the program gets a different (albeit similar) 5000 files from a different directory. Running time on the first try: well under one second. How about that? [~]$ uname -a Linux x 2.6.18-194.32.1.el5 #1 SMP Wed Jan 5 17:53:09 EST 2011 i686 i686 i386 GNU/Linux Thanks for your comments. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Unicode in C++
On Wed, 23 Feb 2011 17:01:37 +0100, Mihai T. Lazarescu wrote: [...] Thanks, I did a slightly different search and I didn't get such good results. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Unicode in C++
On Tue, 22 Feb 2011 23:53:20 +0100, Nicolas Thierry-Mieg wrote: > Michael D. Berger wrote: >> On my CentOS box, in C++ programs, is there a way to print Unicode >> characters? > > google knows... I haven't found it. Please see the other response I just sent for clarification of what I need. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Unicode in C++
On Tue, 22 Feb 2011 19:51:38 -0500, Nico Kadel-Garcia wrote:
> On Tue, Feb 22, 2011 at 5:37 PM, Michael D. Berger
> wrote:
>> On my CentOS box, in C++ programs, is there a way to print Unicode
>> characters?
>>
>> Thanks,
>> Mike.
>
> Why do you want to?
Off topic.
> And what sort of monitor or client are you using?
> Xterm, Putty, NX, SSH,
Xterm.
> And what do you mean by "print"? Do you mean send to a printer, or get
> them to display correctly on your screen?
cout << << endl;
and they will appear on my screen, or:
ofstream os("myfile");
os << << endl;
And they will appear in myfile which may them be printed or
edited with vi.
Thanks,
Mike.
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[CentOS] Unicode in C++
On my CentOS box, in C++ programs, is there a way to print Unicode characters? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] TrueCrypt WD External Drive
I have a WD Elements 2TB USB hard drive. I would like to encrypt the whole drive with TrueCrypt on my CentOS box. Could someone direct me to a tutorial on how to do this? Ideally, I would also like to access it with my WinXP box, but this part is optional. Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] nvidia failure with new kernel
On Mon, 17 Jan 2011 19:07:03 +, Ned Slider wrote: > On 17/01/11 18:44, Jason Brown wrote: >> The kernel modules are only for that kernel, so anytime you update it >> you also have to reinstall the nvidia drivers. >> >> > Alternatively, you could use the nvidia driver packages from elrepo.org: > > http://elrepo.org/tiki/kmod-nvidia > > which are kABI-tracking kmod packages that work seamlessly over a kernel > update. They even work with the new 5.6 kernel and there are packages > for el6 too. > > If you do decide to switch to the elrepo packages, please make sure you > *uninstall* the current NVIDIA provided driver first. The page above has > details on how to do that. > > Hope that helps. After looking at the recommended web site, I did the uninstall, and then ran: yum --disablerepo=\* --enablerepo=elrepo install kmod-nvidia nvidia-x11- drv 2>&1 | tee el.log I got: Loaded plugins: fastestmirror Error getting repository data for elrepo, repository not found It seems that there may be another step. Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] nvidia failure with new kernel
I installed TrueCrypt and when I ran it, it informed me that I needed a new kernel. So I ran "yum update". I boot to level 3, and when I ran startx, I got: -- ... (==) Using config file: "/etc/X11/xorg.conf" FATAL: Module nvidia not found. (EE) NVIDIA: Failed to load the NVIDIA kernel module. Please check your (EE) NVIDIA: system's kernel log for additional error messages. (EE) Failed to load module "nvidia" (module-specific error, 0) (EE) No drivers available. Fatal server error: no screens found XIO: fatal IO error 104 (Connection reset by peer) on X server ":0.0" after 0 requests (0 known processed) with 0 events remaining. -- If I boot with the old kernel, I can successfully run startx. Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] problem mounting external drive
On my Centos box with: uname -r 2.6.18-164.6.1.el5 I tried to mount my 2T external drive with: mount -t ntfs /dev/sdg1 /mnt/wd and I get: mount: unknown filesystem type 'ntfs' Thanks in advance for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] # chkconfig: kill at run level 3
On Mon, 06 Dec 2010 11:38:49 -0500, Brunner, Brian T. wrote: [... > The number after the S and K determine the order in which they're run. > S01 starts things which S02-S99 might require; S02 might depend on S01 > and provide service the S03-S99 stuff requires. And, so on. The K > scripts *generally* follow the reverse order on the logic that nothing > is shut down while something else might require it. Therefore a service > with S01 has K99, what is S02 has K98, and so on. > > I'd (personally) guess at the Wild Blue that your Kxx kill script has a > high enough number that it's shutting your app down after something else > has been shut down, on which your app depends, without which your app > throws an exception. That's why (guess based on previous guess) if you > kill your app then shut down, everything is happy. > > General Rule of Thumb: > Sxx -> K(100-xx) > It is K03... Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] # chkconfig: kill at run level 3
On Mon, 06 Dec 2010 01:30:12 -0500, Nico Kadel-Garcia wrote: > On Sun, Dec 5, 2010 at 10:46 PM, Michael D. Berger > wrote: >> On Sun, 05 Dec 2010 10:50:53 -0500, Robert Spangler wrote: >> >>> On Friday 03 December 2010 19:30, Michael D. Berger wrote: >>> >> [...] >>> >>> Check /etc/rc.d/rc6.d and insure that you have K??yourscriptname in >>> there. It looks like your script demon was setup to be run but was >>> never properly setup to be shut down. When shutting down the system >>> the system is switched to run level 6. >> >> The correct K link does appear in /etc/rc.d/rc6.d . I wrote a "stop" >> script that stops my daemon, does sleep 5, and then calls shutdown (or >> reboot). I don't like this kluge, but it does work. Could it be that >> my daemon stop procedure is too slow or complex for shutdown? The TERM >> code does send stop messages to and join several threads, which in turn >> do the same to nested threads. Each thread does some stop logging, >> among other things. >> >> Mike. > > "Taking too long" is unlikely. Running through the shutdown init scripts > is normally a serial operation, not a parallel one. > > It could be that your shutdown script is simply incomplete, and fails to > *finish* stopping a process before proceeding to the next one. If you > wait on each threed to stop, surveying it for status and killing it whan > an ax only if necessary, then you may have a better fighting chance of > getting it shut down gracefully. > > I've had some recent work with init scripts that weren't written as init > scripts, that get confused and hang ridiculously awaiting further input. > Issuing yet another "shutdown" or "reboot" command at that point will > simply re-run your shutdown procedures, especially this shutdown script: > that way can lie madness if your "threads" aren't shut down gracefully. > > It sounds like you need more thorough logging of what your shutdown > script does. I think that I am missing something. In my script in /etc/init.d : stop) echo -n "Stopping $myThing: " killproc -d 5 $myThing_prog sleep 30 echo rm -f $VAR_SUBSYS_MYTHING ;; The sleep 30 is not usually there, but it didn't make any difference. There certainly was not a 30 second delay in the shutdown sequence. I also put a sleep(30) in the TERM signal processor and there was no difference. (BTW, the daemon is in C++.) When you say the shutdown runs through the scripts sequentially, then why didn't my sleeps work? When I call the stop for my daemon without shutting down, there is no problem. BTW, it is K03 ... Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] # chkconfig: kill at run level 3
On Sun, 05 Dec 2010 10:50:53 -0500, Robert Spangler wrote: > On Friday 03 December 2010 19:30, Michael D. Berger wrote: > [...] > > Check /etc/rc.d/rc6.d and insure that you have K??yourscriptname in > there. It looks like your script demon was setup to be run but was > never properly setup to be shut down. When shutting down the system the > system is switched to run level 6. The correct K link does appear in /etc/rc.d/rc6.d . I wrote a "stop" script that stops my daemon, does sleep 5, and then calls shutdown (or reboot). I don't like this kluge, but it does work. Could it be that my daemon stop procedure is too slow or complex for shutdown? The TERM code does send stop messages to and join several threads, which in turn do the same to nested threads. Each thread does some stop logging, among other things. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] linux boot process (was# chkconfig: kill at run level 3)
On Sat, 04 Dec 2010 15:58:10 +, Cia Watson wrote: [...] 04 Dec 2010 15:25:47 +, Keith Roberts wrote: >> [...] > > I'm not a boot-loader expert, but CentOS uses grub and the first thing I > notice about the attached article is that it talks about LILO. From what > I've gathered LILO is a different animal than grub, so as far as the > documentation is specific to lilo processes, I'd say no it wouldn't be > correct for CentOS. > > However since the 'li' part of lilo stands for linux, then it may be a > good general reference. But some of those more expert in the differences > two will probably chime in at some point. So where can I find a good description of how grub works in RedHat? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] # chkconfig: kill at run level 3
On Sat, 04 Dec 2010 15:25:47 +, Keith Roberts wrote: [...] > > Please see this old SuSE documentation for a good description of the > Linux boot process: > > http://linuxmafia.com/linux/suse-linux-internals/part2.html > [...] Will this SuSE documentation be correct for CentOS, which is RedHat? Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] # chkconfig: kill at run level 3
In the control script of my daemon in /etc/init.d?, I have # chkconfig: 35 97 3 The result of this is that I have links: /etc/rc.d/rc1.d/K03... /etc/rc.d/rc3.d/S97... /etc/rc.d/rc5.d/S97... As mentioned in a previous thread, my complex daemon throws an exception when I shutdown. Perhaps things might be better if I had: /etc/rc.d/rc3.d/K03... Might this be a good idea? If so, how can I make it happen automatically? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] shutdown script
On Fri, 03 Dec 2010 23:20:17 +, Keith Roberts wrote: > On Fri, 3 Dec 2010, m.r...@5-cent.us > wrote: > [...] > Is this any good? > > #! /bin/bash > > # Bash script to perform a gracefull shutdown of apache web server # > called from /root/root-admin-scripts/databases/fedora-8-mysql/ # > backup-mysql-databases.php > # DO NOT DELETE! > #--# > > # seconds to wait for apache to shutdown APACHE_GRACE_TIME=10 > > # output the current version of apache apachectl -v > echo "" > > # gracefully shut-down the apache web server apachectl graceful-stop > > echo "Shutting down Apache web server..." echo "Waiting > $APACHE_GRACE_TIME seconds for Apache web server to finish..." > > # wait for apache to shutdown properly sleep $APACHE_GRACE_TIME > > exit 0 > > #--# > > I wanted to shutdown Apache so it was not updating MySQL databases when > the backup script ran ;) > > Regards, > > Keith Roberts I could write a script that shuts down my client and then calls shutdown, but I was hoping to call a script from the shutdown procedure that would complete before the rest of the shutdown. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] shutdown script
On Fri, 03 Dec 2010 15:43:10 -0500, m.roth-x6lchVBUigD1P9xLtpHBDw wrote: > Michael D. Berger wrote: >> I have a daemon that throws an exception whenever I shutdown or reboot. >> However, stopping it with kill -15, or calling the stop command in its >> start stop script (in /etc/init.d/) results in correct termination. >> >> Therefore, might it be that shutdown or reboot call an initial script >> in which I can stop the daemon, and then delay a little? > > Wait - what I get from what you say, above, is that it's not killed by > its script in /etc/init.d: why not? What's the output from chkconfig > --list ? > >mark No, chkconfig returns the correct result, and the proper links appear in /etc/rc.d/... . The daemon is complex, and there is plenty that might slow down a shutdown. BTW, its control script contains: # chkconfig: 35 97 3 so am giving it plenty of time, but perhaps not enough. Furthermore, the daemon name appears in the shutdown listing in the expected way. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] shutdown script
I have a daemon that throws an exception whenever I shutdown or reboot. However, stopping it with kill -15, or calling the stop command in its start stop script (in /etc/init.d/) results in correct termination. Therefore, might it be that shutdown or reboot call an initial script in which I can stop the daemon, and then delay a little? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fail Transfer of Large Files
On Sun, 21 Nov 2010 11:49:29 -0500, Nico Kadel-Garcia wrote: [...] > > Good question. I don't have a hard rule of thumb, but I'd estimate that > any one file that takes more than 10 minutes to transfer is too big. So > transferring CD images over a high bandwidth local connection at 1 > MByte/second, sure, no problem! But for DSL that may have only 80 > KB/second, 80 KB/second * 60 seconds/minute * 10 minutes = 48 Meg. So > splitting a CD down to lumps of of, say, 50 Megs seems reasonable. > [...] The file I was having trouble with was a tar file of a complex directory tree containing mostly jpg files under 15M in size. So instead I did rsync -rv on the unpacked directory tree, and it worked just fine. PROBLEM SOLVED. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fail Transfer of Large Files
On Sun, 21 Nov 2010 06:47:04 -0500, Nico Kadel-Garcia wrote: > On Sat, Nov 20, 2010 at 10:28 PM, Michael D. Berger > wrote: [...] > >>From decades of experience in many environments, I can tell you that > reliable transfer of large files with protocols that require > uninterrupted transfer is awkward. The larger the file, the larger the > chance that any interruption at any point between the repository and the > client will break things, and with a lot of ISP's over-subscribing their > available bandwidth, such large transfers are, by their nature, > unreliable. > > Consider fragmenting the large file: Bittorrent transfers do this > automatically: the old "shar" and "split" tools also work well, and > tools like "rsync" and the lftp "mirror" utility are very good at > mirroring directories of such split up contents quite efficiently. What, then, is the largest file size that you would consider appropriate? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fail Transfer of Large Files
On Sat, 20 Nov 2010 18:17:23 -0600, Jay Leafey wrote: > Les Mikesell wrote: [...] > This does ring a bell, but the circumstances were a bit different. In > our case we were transferring large files between "home" and a remote > site. SFTP/SCP transfers were stalling part-way through in an > unpredictable manner. It turned out to be a bug in the selective > acknowledgment functionality in the TCP stack. Short story, adding the > following line to /etc/sysctl.conf fixed the issue: > >> net.ipv4.tcp_sack = 0 > > Of course, you can set it on-the-fly using the sysctl command: > >> sysctl -w net.ipv4.tcp_sack=0 > > It helped in our case, no way of telling if it will help you. As usual, > your mileage may vary. Googing around, I get the impression that disabling SACK might lead to other problems. Any thoughts on this? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Fail Transfer of Large Files
On my intranet, I sometimes transfer large files, about 4G, to an CentOS old box that I use for a web server. I transfer with ftp or sftp. Usually, before the file is complete, the transfer "stalls". At that point, ping from the destination box to the router fails. I then deactivate the net interface on the destination box and then activate it. Ping is then successful, and the transfer is completed. The transferred file is correct, as verified with sha1sum. All connections are via cat6 wire. So what do you think? Should I try changing the net card? Any tests to run? Any other suggestions? Thanks for your help. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ls -lrt reversal
My CentOS box with: $ uname -r 2.6.18-164.6.1.el5 gets the file order wrong with: ls -lrt * . Two files that were last modified in the same second are shown in order that is the reverse of the order in which they were actually last modified. Note also that the later file was first created after the earlier file was last modified. Is the precision of this only to the second? Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] socket: write vs send
On Tue, 06 Apr 2010 15:57:28 -0500, Les Mikesell wrote: [...] I added the handler and its working well now. Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] socket: write vs send
On Tue, 06 Apr 2010 14:53:45 -0500, Les Mikesell wrote: [...] > > They should be equivalent - if the other end closes first, you'll get a > SIGPIPE, which by default will kill the process. If you want to keep > running you have to handle or ignore the signal. How about if I use MSG_NOSIGNAL in the flags argument? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] socket: write vs send
On Tue, 06 Apr 2010 14:37:27 -0500, Les Mikesell wrote: > On 4/6/2010 2:16 PM, Michael D. Berger wrote: >> On CentOS 5.4, >> Linux 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009 >> i686 i686 i386 GNU/Linux >> >> In man 2 send I find: >> >>The send() call may be used only when the socket is in a >>connected state (so that the intended recipient is known). The >>only difference between send() and write() is the presence of >>flags. With zero flags parameter,send()isequivalent >>to write(). >> >> In some complex server software, if the client disconnects: >> send: delivers errno == ECONNRESET >> but >> write: crashes the server process. >> >> So it is not really equivalent. Any thoughts on this? > > Are you sure it isn't the normal signal associated with a write when the > other end closes first that is crashing the process? No, I.m not sure. I found that send also sometimes crashes it. Sorry for the misleading comment. Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] socket: write vs send
On CentOS 5.4, Linux 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009 i686 i686 i386 GNU/Linux In man 2 send I find: The send() call may be used only when the socket is in a connected state (so that the intended recipient is known). The only difference between send() and write() is the presence of flags. With zero flags parameter,send()isequivalent to write(). In some complex server software, if the client disconnects: send: delivers errno == ECONNRESET but write: crashes the server process. So it is not really equivalent. Any thoughts on this? Thanks, Mike. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
