Discuss December 2009

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295 participants
271 discussions

scp copy remote files does NOT copy link?
by mcclnx mcc 21 Dec '09

21 Dec '09

We have CENTOS 5.3 on DELL servers. I tried to us following command to copy remote files system to local: scp -rp oracle@ORA2:/home/app/oracle/10.2 . After SCP finish copy, I found some files on source file system using "link" but on target file systems it change to "physical file". Does there has way scp not change "link" setup? Thanks. ___________________________________________________ 您的生活即時通－溝通、娛樂、生活、工作一次搞定！ http://messenger.yahoo.com.tw/

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What determines default kernel after update?
by Les Mikesell 21 Dec '09

21 Dec '09

I have a 32-bit machine with 8 gigs RAM and was running the PAE kernel, but after the last update noticed that grub was set to default to the non-PAE version although both were installed. Does anyone know how boot default is supposed to be determined? -- Les Mikesell lesmikesell(a)gmail.com

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disk at 101% - but it isn't
by Alan McKay 21 Dec '09

21 Dec '09

Hey folks, Is there any way to get this to report the proper values again? The disk did fill up but we removed a good 60G of data but it still shows full [root@price-two:/]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 131G -64Z 131G 101% / /dev/sda1 99M 9.7M 84M 11% /boot /dev/sdb1 269G 60G 196G 24% /data none 4.0G 0 4.0G 0% /dev/shm -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of "In Defense of Food"

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minimal set of packages for gnome desktop
by Janez Kosmrlj 21 Dec '09

21 Dec '09

Does anybody know what is the minimal set of packages, you have to install, to make gnome desktop work.

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Cannot see samba in win Neighborhood
by Matias Morawicki 21 Dec '09

21 Dec '09

Hello u all, sorry to bring this issue back again, but I´ve been searching and trying all the advices suggested in previous posts and I still can´t see the samba server in the win network neighborhood. I can see the samba shares from win via net view \\servername but if I issue a plain "net view" samba won´t show up. only the win machines, the same i can see on the Neighborhood... and when I select local master = no Samba would stay without master! I issue smbclient -L servername -U% and the master section remains empty. It´s like samba is not being able to "talk" to the rest of the workgroup. (of course they are all in the same workgroup) I´m using "wins support = yes" and I´ve set the DHCP to set the clients to use the samba server as wins server.I´ve checked the win clients and they get the correct conf. I´ve tried stopping iptables, disabling Selinux, different smb.conf from the simple examples of t first chapters of samba by example, to plenty of options... that´s why I´m not including my smb.conf, because I´ve tried many variations, always with the same results. I tried a basic samba configuration in a ubuntu server in another box just to test, anf the win clients were able to see it in the neigbohood... so I guess the issue is on my Centos box. I tried the same smb.conf from that working ubuntu-samba and didn´t make it on the Centos... Btw, the server is a Centos 5.3, with samba 3.2.15 (it also happened with the default samba, so I´ve upgraded just in case...) I hope someone can point me some directions... thanks in advance!! Matias

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storage servers crashing, hair being pulled out!
by Gordon McLellan 21 Dec '09

21 Dec '09

I have a trio of servers that like to reboot during high disk / network IO operations. They don't appear to panic, as I have kernel.panic = 0 in sysctl.conf. The syslog just shows normal messages, like samba complaining about browse master and then just syslogd starting up. The machines seem to crash when I'm not near the console, usually when I'm trying to pull data off them to another machine running backups. But, they've also crashed trying to copy data off them to other servers (via iscsi). Also, they have crashed being on the receiving end of data via nfs. Two of the servers are linked using drbd and heartbeat, the third is stand alone. Centos 5.4 x86-64 is the flavor of linux on all of them, pretty much vanilla except for the drbd/iscsi stuff. I want to go after the motherboard manufactorer, since I'm more willing to suspect three mobos in a bad lot than three CPUs, especially since one cpu is completely different than the other two. The other variable is the two machines running drbd have promise raid cards in them. I also have the same raid card in my personal server at home. That server also has a nack of crashing during heavy disk IO to the raid volume. The entire OS doesn't crash, just the raid volume, and the only way to bring it back is a reboot. I'm really at a loss on what to do next... Any suggestions? Gordon The hardware config of the drbd servers: Tyan i3210 ICH9 mobo Intel C2D 7500 cpu 4GB A-Data ram Promise ex8650 raid Supermicro 742TQ-865 chassis (865w psu) 8x 1Tb western digital green power drives The third machine: Tyan i3210 ICH9 mobo Intel C2Q 9400 cpu 8GB Mushkin ram dmraid 5 Antec something or other chassis 550W PC Power and Cooling PSU 7x 250gb seagate 7200's

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RHEL 6 won't support Itanic, will support PowerPC, though
by Timo Schoeler 21 Dec '09

21 Dec '09

Hi list, after some discussion on #IRC on PowerPC I was waiting for some commitment on supported architectures in RHEL 6. As I just learnt, Itanic will be dumped, but there will be a PowerPC release: http://www.theregister.co.uk/2009/12/18/redhat_rhel6_itanium_dead/ Best, Timo (happy PowerPC enthusiast :)

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College student printer for CentOS 5.4 x86_64?
by David McGuffey 21 Dec '09

21 Dec '09

Oldest son came back from college and wants a printer for his Dell laptop. I built it with CentOS 5.3 x86_64 several months ago and will upgrade it to 5.4 The Cannon printer he now has (bought with the laptop and Vista through the university book store), doesn't seem to have linux drivers. I built the machine with Vista and CentOS in dual-boot, so he could manage his iTunes and use the printer under Vista. He does almost all his college work under CentOS. Most of his papers are submitted electronically, but occasionally he has to print one. What would the community recommend? His needs are simple...mostly B&W papers. On rare occasions he needs to print a paper with color photos/graphs embedded. Not looking to spend a lot, just enough to satisfy the requirement. DaveM

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Re: [CentOS] Optimizing CentOS for gigabit firewall
by sadas sadas 21 Dec '09

21 Dec '09

>Some months ago there was discussions about 10 gbit performance with >Linux. Some guys were pushing over 70 Gbit/sec through a single linux >box. 70 Gbit/sec ? Maybe with port aggravation it's possible. Can you give some more info about that guys. To achieve that hight throughput maybe it's necessary to cut most of the OS and the kernel, leaving only the necessary. I'm very interested to read more information about the experiment. regards p.s here you can see 10 Gbit/s experiment http://haproxy.1wt.eu/10g.html

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Inquiry:How to recognize the assigned device for attached usb memory?
by hadi motamedi 21 Dec '09

21 Dec '09

Dear All I have attached usb memory to my CentOS 5.2 server and I want to add it to my /etc/fstab . Can you please let me know how can I recognize it from my"/dev/?" list ? Thank you in advance

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Discuss December 2009