joined R-today
Bala, I would not advocate disabling SELinux entirely to resolve this issue. SELinux is one of the key security features of Fedora Linux and some other Linux distributions that have adopted it. It has already been demonstrated to be robust with respect to so-called zero-day attacks. I would first look to take a more surgical approach to resolve this particular issue with this package. Using the SETroubleshoot daemon is the easiest way to accomplish this as it will provide specific instructions. As with any security approach, there are trade-offs between security and usability, but SELinux as a mandatory access control system is well worthwhile keeping in place. BTW, as a future reference, there is a r-sig-fedora list: https://stat.ethz.ch/mailman/listinfo/r-sig-fedora HTH, Marc
On Apr 21, 2009, at 9:56 AM, Bala subramanian wrote:
Dear Marc and Peter, Thank you so much. In fact disabling the SElinux solved the problem. Bala On Tue, Apr 21, 2009 at 4:43 PM, Marc Schwartz <marc_schwartz at me.com> wrote: On Apr 21, 2009, at 9:28 AM, Peter Dalgaard wrote: Bala subramanian wrote: Hi, I tried to install from four different mirrors. The result is the same. I dnt understand what the following error means. /usr/lib/R/library/ncdf/libs/ncdf.so: cannot restore segment prot after reloc: Permission denied Error in library(ncdf) : .First.lib failed for 'ncdf' I even tried to change the permission of ncdf.so but still i am not able to load the library. Nothing to do with the download. I think SElinux is getting in your way (so your unstated system could be RedHat Enterprise Linux?). Contact your sysadm or google for the error message. (One of the hits suggests that you might need to run chcon -t texrel_shlib_t ncdf.so but, well, no warranties...) The OP did indicate that F10 was the platform: https://stat.ethz.ch/pipermail/r-help/attachments/20090421/65ee5d6e/attachment.pl so I would agree here that SELinux is almost certainly the culprit as it does control relocation. If you have the SE Troubleshoot daemon running, you should get a yellow star/badge symbol on one of your desktop dock panels. Typically, if you click on this, it will bring up a dialog window that will have some specific suggestions for resolving the problem. You can see some visual examples here: https://fedoraproject.org/wiki/Design/SETroubleshootUsabilityImprovements More info on SETroubleshoot here: https://fedorahosted.org/setroubleshoot/ HTH, Marc Schwartz