Discuss August 2010

discuss@lists.centos.org

250 participants
191 discussions

Which disk file format are you used in removable disk between xp and linux ?
by ganu MailList 20 Aug '10

20 Aug '10

The centos can not recognize the NTFS file format and my xp system can not format the removable disk to fat32. Which the disk format are you used if you want to share the data between xp and linux system?

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SCIM service does not start
by sync 20 Aug '10

20 Aug '10

Hi ,guys : I reboot my computer which is installed the CentOS 5.4 64 bits just now and find that SCIM service does not start And the error message is these: root@test <root@camlit> ~: tailf /var/log/message xxxx scim-bridge: Another agent is running .. xxx scim-bridge: Failed to allocate the agent . Exitting .... .... .... I also run this command "ps aux |grep scim " to pick up which process use the scim service and kill that , but that problem is as before . So what could I do ? thanks in advance .....

3 2

Installing on Intel EFI system
by Mayhall, Anthony J. (MSFC-ES53)[Dynamic Concepts Inc.] 20 Aug '10

20 Aug '10

Can I install CentOS 5.4 on an Intel based system that is not an Itanium system? The system BIOS has support for EFI and can boot to an EDI shell. Thanks, Anthony Mayhall

2 2

Two display cards problem
by ganu MailList 20 Aug '10

20 Aug '10

My Thinkpad notebook has two the same display card. It is installed with Windows XP system and CentOS 5.3. When I reboot from CentOS to xp, the display card driver of windows xp is broken. I guess if the display card is switched in the CentOS? How to let these two system use the same display card?

4 4

odd situation slightly off topic (sending file descriptors to another process)
by Jerry Geis 20 Aug '10

20 Aug '10

I have coded up the standard sendfd() and recvfd() for linux to send and recv file descriptors. seems to work (http://book.chinaunix.net/special/ebook/addisonWesley/APUE2/0201433079/ch17…) however when I recvfd() my number of open file descriptors bumps by 2 and not 1. (using lsof -p X | wc -l) I am not sure why the count jumps by 2 and not 1. The sendfd() is just sending a socket descriptor. If I close() the provided descriptor it only closes 1 handle (again using lsof above). So my recvfd() is giving me 2 but when I close() I only drop 1 and not 2. Something is not in alignment and just wondering if someone can shed some light on this. Thanks. Jerry

2 3

dmesg- bnx2i: iSCSI not supported, dev=eth0
by David 19 Aug '10

19 Aug '10

Getting "bnx2i: iSCSI not supported, dev=eth0" for all the NIC adapters on all of my R710's running CentOS 5.5. Here is an sample of the error messages: bonding: Warning: either miimon or arp_interval and arp_ip_target module parameters must be specified, otherwise bonding will not detect link failures! see bonding.txt for details. bonding: bond0: setting mode to active-backup (1). bonding: bond0: Setting MII monitoring interval to 500. ADDRCONF(NETDEV_UP): bond0: link is not ready bonding: bond0: Adding slave eth0. bnx2: eth0: using MSIX bnx2i: iSCSI not supported, dev=eth0 bonding: bond0: enslaving eth0 as a backup interface with a down link. bnx2i: iSCSI not supported, dev=eth0 bonding: bond0: Adding slave eth2. bnx2: eth2: using MSIX bnx2i: iSCSI not supported, dev=eth2 bnx2: eth0 NIC Copper Link is Up, 1000 Mbps full duplex bonding: bond0: enslaving eth2 as a backup interface with a down link. bnx2i: iSCSI not supported, dev=eth2 bonding: bond0: link status definitely up for interface eth0. bonding: bond0: making interface eth0 the new active one. bonding: bond0: first active interface up! bonding: bond0: link status definitely up for interface eth2. ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready bonding: bond0: link status definitely down for interface eth2, disabling it bnx2: eth2 NIC Copper Link is Up, 1000 Mbps full duplex bonding: bond0: link status definitely up for interface eth2. bond0: no IPv6 routers present Understanding that bnx2i is used for hardware iscsi, why is this error occurring? David

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how to setup account which can 'su" to another account (NON-root)?
by mcclnx mcc 19 Aug '10

19 Aug '10

we have CENTOS 5.2 on DELL server. we need allow a user can "su" to another user without password. for example: account user1 can "su - user2" without password. (user2 is NOT root) I know this is big security risk but .... Anyone know how to do it? Thanks.

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too many open files
by Jerry Geis 19 Aug '10

19 Aug '10

I am getting an error about to many open files. I tried to "echo 500000 > /proc/sys/fs/file-max" The number is there now, but I continue to get the error. Is there something else to do? Jerry

3 2

Power failure diagnosis?
by Mark 19 Aug '10

19 Aug '10

This morning between 07:10 or so and 08:10 I discovered that my PC had shut itself off. I thought it was due to a power failure becuase I never turn it off without a good reason, and it had been running (and playing sounds) until it wasn't. My roommate/landlord tells me that the only anomaly he observed was that our router had lost its internet connection (via a cable modem, which was still running fine), and his computer, a laptop, and clocks all seemed to be running normally. I checked all the logs in /var/log and there's nothing in there other than the restart - no temp warnings or anything. The machine has been up and running smoothly since the last time I shut it off (to move), a week ago last Friday (8/6). I don't have a UPS or BB, so is there any way that I can diagnose this further? Here's another weird thing - 'dmesg | grep Aug' shows this: Linux version 2.6.18-194.11.1.el5 (mockbuild(a)builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Tue Aug 10 19:05:06 EDT 2010 EDAC MC: Ver: 2.0.1 Aug 10 2010 EDAC amd64_edac: Ver: 3.2.0 Aug 10 2010 That's probably when I last restarted after installing the new kernel. But: $ date Wed Aug 18 11:52:23 PDT 2010 And /var/log/messages shows this: : Aug 18 06:35:57 marichter dhclient: DHCPREQUEST on eth0 to 192.168.0.2 port 67 Aug 18 06:35:57 marichter dhclient: DHCPACK from 192.168.0.2 Aug 18 06:35:57 marichter dhclient: bound to 192.168.0.100 -- renewal in 5154 se conds. Aug 18 06:44:28 marichter smartd[3829]: Device: /dev/sdb, 4294967295 Currently u nreadable (pending) sectors Aug 18 06:44:28 marichter smartd[3829]: Device: /dev/sdb, 4294967295 Offline unc orrectable sectors Aug 18 08:10:45 marichter syslogd 1.4.1: restart. Aug 18 08:10:45 marichter kernel: klogd 1.4.1, log source = /proc/kmsg started. Aug 18 08:10:45 marichter kernel: Linux version 2.6.18-194.11.1.el5 (mockbuild@b uilder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Tue Aug 10 19:05:06 EDT 2010 : What's up with that??? (Not the disk issue - that's a Seagate problem that, fortunately, means nothing, and yes, I've gone through that one before....) Why doesn't dmesg show the most recent boot? marichter 2.6.18-194.11.1.el5 #1 SMP Tue Aug 10 19:05:06 EDT 2010 x86_64 GNU/Linux centos-release-5-5.el5.centos.x86_64 Thanks. Mark

5 6

What is the best strategy for updating CentOS from 4 to 5?
by Todd Cary 18 Aug '10

18 Aug '10

No doubt I have waited just a little too long, but I think it is time to upgrade before it is not supported. My server is not heavily used (mostly for viewing images) and my Admin skills are better than beginner but NOT guru. Todd -- Ariste Software Petaluma, CA 94952 http://www.aristesoftware.com

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Discuss August 2010