Discuss April 2009

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340 discussions

SELinux errors on my CentOS 5.3 (32 bit) Desktop after upgrade from 5.2
by Lanny Marcus 16 Apr '09

16 Apr '09

I am running SELinux in Permissive mode. GNOME and KDE are installed. Following the upgrade from CentOS 5.2 to 5.3 (32 bit) I am getting SELinux messages. Possibly of interest to someone here or upstream? (Since I'm using Permissive mode, this is not a problem for me). If these are known issues, please disregard. Messages follow: (1) SELinux is preventing nm-system-setti (system_dbusd_t) "getsched" to <Unknown> (system_dbusd_t). SELinux denied access requested by nm-system-setti. It is not expected that this access is required by nm-system-setti and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Source Context: system_u:system_r:system_dbusd_tTarget Context: system_u:system_r:system_dbusd_tTarget Objects: None [ process ]Source: nm-system-settiSource Path: /usr/sbin/nm-system-settingsPort: <Unknown>Host: dell2400.homelanSource RPM Packages: NetworkManager-0.7.0-4.el5_3Target RPM Packages: Policy RPM: selinux-policy-2.4.6-203.el5Selinux Enabled: TruePolicy Type: targetedMLS Enabled: TrueEnforcing Mode: PermissivePlugin Name: catchallHost Name: dell2400.homelanPlatform: Linux dell2400.homelan 2.6.18-128.1.6.el5 #1 SMP Wed Apr 1 09:19:18 EDT 2009 i686 i686Alert Count: 11First Seen: Fri 10 Apr 2009 09:10:39 PM COTLast Seen: Thu 16 Apr 2009 07:31:47 AM COTLocal ID: 19712f1c-5303-49bf-a8bc-6016b7f060d5 Line Numbers: Raw Audit Messages :host=dell2400.homelan type=AVC msg=audit(1239885107.4:18): avc: denied { getsched } for pid=2970 comm="nm-system-setti" scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0 tclass=process host=dell2400.homelan type=SYSCALL msg=audit(1239885107.4:18): arch=40000003 syscall=155 success=yes exit=0 a0=b9a a1=b7f0690c a2=95fff4 a3=b7f06700 items=0 ppid=1 pid=2970 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nm-system-setti" exe="/usr/sbin/nm-system-settings" subj=system_u:system_r:system_dbusd_t:s0 key=(null (2) SELinux is preventing nm-system-setti (system_dbusd_t) "sys_nice" to <Unknown> (system_dbusd_t). SELinux denied access requested by nm-system-setti. It is not expected that this access is required by nm-system-setti and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Source Context: system_u:system_r:system_dbusd_tTarget Context: system_u:system_r:system_dbusd_tTarget Objects: None [ capability ]Source: nm-system-settiSource Path: /usr/sbin/nm-system-settingsPort: <Unknown>Host: dell2400.homelanSource RPM Packages: NetworkManager-0.7.0-4.el5_3Target RPM Packages: Policy RPM: selinux-policy-2.4.6-203.el5Selinux Enabled: TruePolicy Type: targetedMLS Enabled: TrueEnforcing Mode: PermissivePlugin Name: catchallHost Name: dell2400.homelanPlatform: Linux dell2400.homelan 2.6.18-128.1.6.el5 #1 SMP Wed Apr 1 09:19:18 EDT 2009 i686 i686Alert Count: 11First Seen: Fri 10 Apr 2009 09:10:39 PM COTLast Seen: Thu 16 Apr 2009 07:31:47 AM COTLocal ID: 6cf4e81a-0958-4d3e-aba8-9ab4c9e3b7c9 Line Numbers: Raw Audit Messages :host=dell2400.homelan type=AVC msg=audit(1239885107.9:19): avc: denied { sys_nice } for pid=2970 comm="nm-system-setti" capability=23 scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0 tclass=capability host=dell2400.homelan type=AVC msg=audit(1239885107.9:19): avc: denied { setsched } for pid=2970 comm="nm-system-setti" scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:system_r:system_dbusd_t:s0 tclass=process host=dell2400.homelan type=SYSCALL msg=audit(1239885107.9:19): arch=40000003 syscall=156 success=yes exit=0 a0=b9a a1=0 a2=bfa7b5a4 a3=b7f06700 items=0 ppid=1 pid=2970 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="nm-system-setti" exe="/usr/sbin/nm-system-settings" subj=system_u:system_r:system_dbusd_t:s0 key=(null)

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Feature list between 5.2 and 5.3
by Drew Weaver 16 Apr '09

16 Apr '09

does anyone know if (and where) a feature list of the changes between CentOS 5.2 and 5.3 can be found? All of the documentation that I could find on centos.org is related to 5.2 and 5.1 thanks, -Drew

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Re: [CentOS] Dual-boot with WinXP, CentOS already installed
by Sorin Srbu 16 Apr '09

16 Apr '09

>-----Original Message----- >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On Behalf >Of Sorin Srbu >Sent: Thursday, April 16, 2009 2:09 PM >To: 'CentOS mailing list' >Subject: [CentOS] Dual-boot with WinXP, CentOS already installed > >I'd like to deploy a solution with dual-booting systems where CentOS 5.3 is >already installed and WinXP will be installed to a separate disk. > >I found >http://apcmag.com/how_to_dual_boot_linux_and_windows_xp_linux_installed_fir st.htm?page=1 >and it seems straight forward enough, although the description is for Ubuntu. > >The problem as I see it, is that the how-to differs from how CentOS looks in >/etc/grub.conf and the boot-loader in Ubuntu with respect to making grub work >again after the Windows install. Googled some more. Realised /boot/grub/menu.lst *is* /etc/grub.conf... Duh! Also some people say it's better to have Windows installed to the first harddrive and the first partition (so that C: is the where it should be on 1st hd/1st partition). Would I be better off disconnecting the drive containing CentOS and reconnect it when I'm done installing Windows. Then boot with CentOS rescue and reinstall grub to the Windows-hd MBR?

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Dual-boot with WinXP, CentOS already installed
by Sorin Srbu 16 Apr '09

16 Apr '09

Hi all, I'd like to deploy a solution with dual-booting systems where CentOS 5.3 is already installed and WinXP will be installed to a separate disk. I found http://apcmag.com/how_to_dual_boot_linux_and_windows_xp_linux_installed_fir… and it seems straight forward enough, although the description is for Ubuntu. The problem as I see it, is that the how-to differs from how CentOS looks in /etc/grub.conf and the boot-loader in Ubuntu with respect to making grub work again after the Windows install. I found Tldp.org mentioning dual-boot plenty, but most or all articles listed are using lilo as a boot-loader, which seems a bit obsolete and besides I can't quite translate the instructions from lilo to grub. 8-/ Basically, what would I need to change in the how-to from apcmag.com above?? Thanks for any pointers. -- BW, Sorin ----------------------------------------------------------- # Sorin Srbu [Sysadmin, Systems Engineer] # Dept of Medicinal Chemistry, Phone: +46 (0)18-4714482 >3 signals> GSM # Div of Org Pharm Chem, Mobile: +46 (0)701-718023 # Box 574, Uppsala University, Fax: +46 (0)18-4714482 # SE-751 23 Uppsala, Sweden Visit: BMC, Husargatan 3, D5:512b # Web: http://www.orgfarm.uu.se ----------------------------------------------------------- # () ASCII ribbon campaign - Against html E-mail # /\ # # MotD follows: # CentOS: When you need Enterprise uptime, without Enterprise pricing.

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Sharing RAM between VM
by Larry 16 Apr '09

16 Apr '09

Hi, all! I have a server with 4 virtual machines ( using xen). Is there a way to make them share RAM? I found out something about balloons, but it didn't distribute RAM dynamically. So I decided that xen can't achieve that. I tried luci and ricci and now all my VMs are in a cluster. But I don't think this actually helped. Can you suggest a software and/or manual or a question which I should ask google for completing this task? All doms/nodes are with Centos 5.3(final). Thanks!

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Updates for csgfs on CentOS4
by carlopmart 16 Apr '09

16 Apr '09

Hi all, I am trying to install csgfs on two CentOS hosts. I have installed latest kernel from updates repository. But when I try to install csgfs, yum returns me this: Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: ccs i686 1.0.12-1 csgfs 71 k cman i686 1.0.24-1 csgfs 66 k cman-kernel i686 2.6.9-55.13.el4.centos.1 csgfs 136 k gnbd i686 1.0.9-1 csgfs 117 k gnbd-kernel i686 2.6.9-10.50.el4.centos.1 csgfs 13 k Installing for dependencies: kernel i686 2.6.9-78.0.1.EL update 12 M magma i686 1.0.8-1 csgfs 34 k Transaction Summary ============================================================================= Install 7 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 13 M Is this ok [y/N] Yum tries to install kernel 2.6.9-78.0.1.EL. Where are the updates modules for csgfs to use with kernel 2.6.9-78.0.13.EL?? Thanks. -- CL Martinez carlopmart {at} gmail {d0t} com

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Re: [CentOS] DKMS and new(er) Nvidia-drivers
by JohnS 16 Apr '09

16 Apr '09

On Wed, 2009-04-15 at 10:08 +0200, Sorin Srbu wrote: > >-----Original Message----- > >From: centos-bounces(a)centos.org [mailto:centos-bounces@centos.org] On > Behalf > >Of Michael A. Peters > >Sent: Tuesday, April 14, 2009 5:57 PM > >To: CentOS mailing list > >Subject: Re: [CentOS] DKMS and new(er) Nvidia-drivers > > > >> Strangely enough, only the systems running an Amd cpu gives the screen > >> artefacts. Go figure... > > > >What the artifacts? > >I switched to the DKMS module in rpmforge and am running an AMD CPU. > >Only think I've noticed is a weird issue with the cursor in thunderbird, > >I don't know if that is nvidia related or not though. It is annoying and > >I don't recall it being there before I updated the driver. > > Diagonal thin black lines originating from upper left corner for starters. > Then if I open a gui, whatever sort, that window gets those lines too. Menus > are unreadable because of this, but slightly more readable if I move the > mouse pointer over the menu entry. The lines tend to go away for a short > while if I log off and log on again. Weird thing is that the lines are > always diagonal and tend to always originate from the upper left corner of > whatever window. > > This is with gnome mind you, and *supposedly* this one is the most stable of > all the desktop environments. Haven't tried with KDE and xfce. Can't tell > for sure if it's gnome or the Nvidia drivers specifically, but I'm leaning > towards the drivers. > > It's not a hardware issue, as I've run rhel3 on the same machines w/o any > artifacts. > > The hardware's two-three year old Asus mobo with a single-core AMD x64 and a > rather feisty Nvidia Quadra gfx card. Don't have the exact details right > now, but it should give a hint or two. All the P4-machines, as well as the > i7-boxes, seem to work fine with dkms. --- No none of that is hardware issues. It is issues with the Nvidia Driver it self. Some or all of those issues can be solved by Downgrading the driver it self. All this is in the documentation and are known problems on both Linux and Windows. JohnStanley

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coolkey
by John R Pierce 16 Apr '09

16 Apr '09

anyone familiar with coolkey, an interface for smartcards? apparently its built into centos5, but I don't seem to see it for centos4, and i need to support both (actually, we have a lot more c4 systems in production than 5)... does anyone know offhand where to find el4 RPMs for this and its related packages (pcsc-lite, etc) ?

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rsync to full disk
by Les Mikesell 16 Apr '09

16 Apr '09

I recently noticed that an "rsync -av" to a full disk keeps sending files even after the target is out of space. Has it always done that? I suppose it is reasonable to keep trying in case it subsequently crosses a mount point or space becomes available but I expected it to quit on that sort of error. -- Les Mikesell lesmikesell(a)gmail.com

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Can not get IP address
by Anand Vaddarapu 16 Apr '09

16 Apr '09

Hi, while installing centos 5.2 i enabled dhcp. centos machine did not get IP address and can not get to internet. ifconfig results Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.255.255.0 inet6 addr: ::1/128 Scope:Host UP Loopback RUNNING MTU:16436 Metric:1 RX packets:1251 errors:0 dropped:0 overruns:0 frame:0 TX packets:212517 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 Please help me. Thanks

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Discuss April 2009