On 05/21/2012 04:12 PM, Jesus del Valle wrote: > modprobe: FATAL: Could not read > '/lib/modules/2.6.32-220.17.1.el6.x86_64/kernel/net/ipv6/ipv6.ko': Invalid > module format > I am not able to find any solution to this. ??? Use "file" to identify the type of data contained in that file, and use "rpm -Vf" to verify it. If either result doesn't look right, reboot and fsck your filesystem. # file /lib/modules/2.6.32-220.17.1.el6.x86_64/kernel/net/ipv6/ipv6.ko /lib/modules/2.6.32-220.17.1.el6.x86_64/kernel/net/ipv6/ipv6.ko: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), not stripped # rpm -Vf /lib/modules/2.6.32-220.17.1.el6.x86_64/kernel/net/ipv6/ipv6.ko #