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Hi all,
I am a newbie to linux and this is my first mail to
this group. We
have a PC running Centos version 2.6.9-42.0.2.EL. I needed to load a router software called Nistnet and it would not run properly. It is looking for RTC (Real Time clock) support as a module. I 've gone through the LKM Loadable Kernel module
support under
Documentation pages of Linux.org and did the following: located the kernel release:
uname -r 2.6.9-42.0.2.EL next navigated to the
/usr/src/kernels/2.6.9-42.0.2.EL-i686 (this is
where the kernel is located on this PC) then issued a make menuconfig command It took me to through the menu and under device
drivers> character
device drivers i chose the Real time clock support as a module. Then exited out of the menu and did make
modules_install.
Then rebooted. However, the PC while rebooting showed some
messages like
fast_rtc: lost around 26 interrupts at 8192Hz. this keeps on appearing on the screen for a while
before reboot and
after the system reboots, I see that at boot time, the ethernet interface does not come up. It gives the follwoing error: Device eth0 has a different MAC address than expected, ignoring. Also i get the following error messages : Cannot open
/lib/modules/2.6.9-42.0.2.EL/kernel/arch/i386/kernel/
microcode.ko no such file or directory and cannot open lib/modules/2.6.9-42.0.2.EL/kernel/drivers/net/sunrpc/sunrpc.ko no such file or directory. if I do an updatedb command and then slocate
microcode.ko, I still see
it under this directory. However, if I navigate to the kernel directory under 2.6.9-42.0.2.EL , there is nothing under it. If i issue ls -al there are a totoal of 16 entries but I cant see them. Can any one please tell me how to revert back to
the original
configuration or to undo these changes? I have copied the config-2.6.9-42.0.-EL release from Centos site to the /boot thinking it would revert to the original default config. Then I rebooted the PC but I still get the error-Eth interface has a different MAC id than expected or unable to bring eth0 up. So, at the boot time, I am currently choosing
the kernel version 2.6.9-32-EL. With this I am able to browse the Internet.
But I want to make the version 2.6.9-42-EL up. Please some one help
me!!
Thanks,
Padmaja
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