Discuss November 2011

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208 participants
157 discussions

Difference in gnome between centos <> fedora
by Andreas Reschke 17 Nov '11

17 Nov '11

Hello, I've on my home PC CentOS 6 and Fedora 13 on different disks. When I log on the gnome enviroment at Fedora knows exactly which programm was started at which desktop (for example: thunderbird on desktop 1, firefox on desktop 2, nautilus on desktop 3, ..). The same procedure on Centos takes all programs on the first desktop, so I must arrange the programs on the right desktop. Question: why kows the gnome of Fedora al the postions and the gnome from CentOS doesn't? Is there a way to automaticly arrange the programs ? Gruß Andreas Reschke ________________________________________________________________ Unix/Linux-Administration Andreas.Reschke(a)behrgroup.com

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Where is source address info of a route kept?
by Dale Dellutri 16 Nov '11

16 Nov '11

I have an ethernet device in my lan with a primary address 192.168.5.205 and a secondary address .217. I added the secondary address after network startup established the primary address by an ip addr add command: # ip addr add 192.168.5.217/24 broadcast 192.168.5.255 dev eth0 # ip addr show ... 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 78:2b:cb:23:21:4c brd ff:ff:ff:ff:ff:ff inet 192.168.5.205/24 brd 192.168.5.255 scope global eth0 inet 192.168.5.217/24 brd 192.168.5.255 scope global secondary eth0 inet6 fe80::7a2b:cbff:fe23:214c/64 scope link valid_lft forever preferred_lft forever ... Then I add a new route via a network gateway but I want the route to use the secondary address as a source. # ip route add 11.11.11.11 via 192.168.5.148 src 192.168.5.217 And the ip route show command shows that it knows the source. # ip route show 11.11.11.11 via 192.168.5.148 dev eth0 src 192.168.5.217 But where is the source address kept? If I look at /proc/net/route, it shows the route (0B0B0B0B = 11.11.11.11), but not the source address. # cat /proc/net/route Iface Destination Gateway Flags RefCnt Use Metric Mask MTU Window IRTT eth0 0B0B0B0B 9405A8C0 0007 0 0 0 FFFFFFFF 0 0 0 ... Where is the source address kept? -- Dale Dellutri

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vertify which software for missing dependenies
by Edward Martinez 16 Nov '11

16 Nov '11

Hi, I'm trying to install RPM package Adobe Reader on Centos 6. I did a rpm -test -ivh on the package and it says it needs dependencies (many) Is a there a command to verify which exact packages it requires so I wont be installing software blindly. missing dependencies: error: Failed dependencies: libatk-1.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.0) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.1) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.1.3) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.2) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.2.4) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.3) is needed by AdobeReader_enu-9.4.2-1.i486 libc.so.6(GLIBC_2.3.2) is needed by AdobeReader_enu-9.4.2-1.i486 libdl.so.2 is needed by AdobeReader_enu-9.4.2-1.i486 libdl.so.2(GLIBC_2.0) is needed by AdobeReader_enu-9.4.2-1.i486 libdl.so.2(GLIBC_2.1) is needed by AdobeReader_enu-9.4.2-1.i486 libfontconfig.so.1 is needed by AdobeReader_enu-9.4.2-1.i486 libfreetype.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libgcc_s.so.1 is needed by AdobeReader_enu-9.4.2-1.i486 libgcc_s.so.1(GCC_3.0) is needed by AdobeReader_enu-9.4.2-1.i486 libgcc_s.so.1(GLIBC_2.0) is needed by AdobeReader_enu-9.4.2-1.i486 libgdk_pixbuf-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libgdk_pixbuf_xlib-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libgdk-x11-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libglib-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libGL.so.1 is needed by AdobeReader_enu-9.4.2-1.i486 libGLU.so.1 is needed by AdobeReader_enu-9.4.2-1.i486 libgmodule-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libgobject-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libgthread-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libgtk-x11-2.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libidn.so.11 is needed by AdobeReader_enu-9.4.2-1.i486 libm.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libm.so.6(GLIBC_2.0) is needed by AdobeReader_enu-9.4.2-1.i486 libm.so.6(GLIBC_2.1) is needed by AdobeReader_enu-9.4.2-1.i486 libpango-1.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libpangoft2-1.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libpangox-1.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libpangoxft-1.0.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0 is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.0) is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.1) is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.1.1) is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.2) is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.2.3) is needed by AdobeReader_enu-9.4.2-1.i486 libpthread.so.0(GLIBC_2.3.2) is needed by AdobeReader_enu-9.4.2-1.i486 libresolv.so.2 is needed by AdobeReader_enu-9.4.2-1.i486 libresolv.so.2(GLIBC_2.2) is needed by AdobeReader_enu-9.4.2-1.i486 librt.so.1 is needed by AdobeReader_enu-9.4.2-1.i486 librt.so.1(GLIBC_2.2) is needed by AdobeReader_enu-9.4.2-1.i486 libstdc++.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libstdc++.so.6(CXXABI_1.3) is needed by AdobeReader_enu-9.4.2-1.i486 libstdc++.so.6(CXXABI_1.3.1) is needed by AdobeReader_enu-9.4.2-1.i486 libstdc++.so.6(GLIBCXX_3.4) is needed by AdobeReader_enu-9.4.2-1.i486 libstdc++.so.6(GLIBCXX_3.4.5) is needed by AdobeReader_enu-9.4.2-1.i486 libX11.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libXext.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libxml2.so.2 is needed by AdobeReader_enu-9.4.2-1.i486 libXt.so.6 is needed by AdobeReader_enu-9.4.2-1.i486 libz.so.1 is needed by AdobeReader_enu-9.4.2-1.i486

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lm_sensors on Sun (x86) Hardware
by Alan McKay 16 Nov '11

16 Nov '11

Hey folks, I'm running RHEL 5.3 on 6 boxes - and on every one of them sensors-detect finds nothing. 5 of them are Sun fire 2250 machines, and 1 is Sunfire 4170. Googling and searching this list does not seem to find anything. When I log into the Sun hardware management interface (web interface) I see that it of course is correctly detecting various temperatures of things. But for some reason Linux is not. Does anyone here have experience in this area and can tell me how to fix this? thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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clustering
by Alan McKay 16 Nov '11

16 Nov '11

Hey folks, I just went through the archives trying to find some info on this but did not come up with much other than it seems there are a few experts here on the list. I have no experience with clustering and have just taken over a Stem Cell Research Lab that has a Grid Engine cluster. I have not yet dug into the details of Grid Engine (only been here a week now) but am just trying to get up to speed on clustering in general. I was just looking at Red Hat's site and they have this HPC thing http://www.redhat.com/promo/mrg/ but damned if I can find any actual details on it there - that data sheet they link to is just a bunch of marketing gobble-de-gook as far as I can make sense of it anyway. Quick question : what are Red Hat using to do that, and can CentOS do the same thing? How hard is it to configure? How does it compare to Grid Engine? I have to say I'm a bit hesitant about Grid Engine because of the whole Oracle takeover. I just don't trust Oracle. Basically I'd like to get up to speed really quickly on different clustering technologies, and maybe even set up a CentOS (or Scientific) based cluster in a sandbox to play with. I guess - looking for reading to get up to speed on clustering, and wondering what my options are with CentOS, RHEL and Scientific. thanks, -Alan -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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pgadmin3 missing dependencies
by Alan McKay 16 Nov '11

16 Nov '11

I searched the list archives and I found one answer to this which suggested I should install the PG yum repos. I don't like that answer for reasons which follow. I'm running Centos 6.0 freshly installed, and I've decided that with this box I'm sticking as much as possible to just the CentOS repos that go with that release. I figure in particular I do not need any PG features above what are offered in release 8.4 that comes from the CentOS repos, so I don't really want to install PG repos. But first of all I do not even see pgadmin3 in the CentOS repos anywhere. Am I correct that in order to get this tool I need to get it from the PG repo? It seems odd to me that CentOS would not have it but stranger things have happened. So I pull down the pgadmin3 RPM manually, and try to do a manual install only to find that a number of RPMs are missing and required. I guess at this point I could just install the repo for PG to yum it all, but I'd like to know what RPMs are required and I am unable to figure that out. I figured out at least that I need libxslt, but cannot figure out from the below output what other RPMs are needed and where I get them. libxslt I got from 6.0 yum repos. [root@cc-bc4d99dffae2 ~]# rpm --install pgadmin3-1.12.2-1.rhel6.i686.rpm warning: pgadmin3-1.12.2-1.rhel6.i686.rpm: Header V4 DSA/SHA1 Signature, key ID 442df0f8: NOKEY error: Failed dependencies: libwx_baseu-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu-2.8.so.0(WXU_2.8.5) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu_net-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu_net-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu_xml-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_baseu_xml-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_adv-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_adv-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_aui-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_aui-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_core-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_core-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_html-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_html-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_ogl-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_ogl-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_qa-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_richtext-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_stc-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_stc-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_xrc-2.8.so.0 is needed by pgadmin3-1.12.2-1.rhel6.i686 libwx_gtk2u_xrc-2.8.so.0(WXU_2.8) is needed by pgadmin3-1.12.2-1.rhel6.i686 wxGTK is needed by pgadmin3-1.12.2-1.rhel6.i686 [root@cc-bc4d99dffae2 ~]# -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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"Overlay" Filesystem Mounts?
by Tim Nelson 15 Nov '11

15 Nov '11

Greetings- Is it possible to mount multiple block devices (or network devices over NFS/CIFS) such that the contents of the mounts appear in one location? For example, lets say I have these shares available: \\server1\volume1\ \\server1\volume2\ \\server1\volume3\ All three contain a directory called data, with different subdirectories. Typically, these would be mounted like so: mount \\server1\volume1\ /mnt/s1v1 mount \\server1\volume2\ /mnt/s1v2 mount \\server1\volume3\ /mnt/s1v3 And, each would have a corresponding 'data' dir at those mounts: /mnt/s1v1/data /mnt/s1v2/data /mnt/s1v3/data However, it is possible to mount all of the shares to one location, such that there is one 'data' dir, with the combined contents of each of the three shares? So, all shares are mounted at /mnt/s1, and the contents of the multiple data dirs appears in one single data dir? The only time I've seen such functionality is within the XBMC media center application. It allows you to mount multiple network shares, but shows them all in one location as a sort of 'overlay' view. Duplicate directories are shown have their contents merged, but remain intact on the actual shares/filesystem. Does any of this make sense? Is it possible with CentOS (pref. 6) ? --Tim

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Re: [CentOS] Changes at Red Hat confouding CentOS (WHOA)
by david 15 Nov '11

15 Nov '11

Hasn't this discussion drifted from the initial topic? I'm sure the price of tablets, of phone service, etc., are interesting to some, but PULEEZZE, look at the topic and ask "is the message contributing to the understanding of changes at RedHat confounding CentOS" David

3 2

Centos6 and samba and nmblookup
by david 15 Nov '11

15 Nov '11

Folks I've installed Centos6 and Samba. I noticed that the program "nmblookup" and a few other Samba related programs, documented in the RHEL6 guide, are not included in Centos6. A search using YUM also did not find "nmblookup", using the repositories: base, centosplus, contrib, cr, epel, extras, updates, virtualbox Has its functionality been moved elsewhere, or should I try to find something wrong in my environment? Thanks David Kurn

2 2

bond of bonds
by Paras pradhan 15 Nov '11

15 Nov '11

Hi, I am trying to use Link-aggregation with redundancy between switches that doesnot support SMLT in switches. I have 4 network ports. First two are connected to a switch and LACP/LAG is enabled. Third and Fourth ports connect to another switch with another LAG group. I was thinking create two mode 4 bonds and bond those bonds to mode 1 (Active/Passive) bond. But it seems this is not supported yet in kernel (?). How do you guys handle this kind of situation. (And yes without using SMLT between switches). Thanks Paras.

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Discuss November 2011