Re-installing modules and re-booting the system helped. Now the modules are installed:
#dmesg [17179586.232000] NVRM: loading NVIDIA Linux x86 Kernel Module 1.0-8776 Mon Oct 16 21:56:04 PDT 2006
#lsmod nvidia 4554836 12 agpgart 34888 2 nvidia,amd64_agp i2c_core 23424 3 i2c_ec,nvidia,i2c_nforce2
#md5sum /lib/modules/2.6.17-10-generic/volatile/nvidia.ko 93001041f9c4fccc75279b72b5fdfbdc /lib/modules/2.6.17-10-generic/volatile/nvidia.ko
Re-installing modules and re-booting the system helped. Now the modules are installed:
#dmesg
[17179586.232000] NVRM: loading NVIDIA Linux x86 Kernel Module 1.0-8776 Mon Oct 16 21:56:04 PDT 2006
#lsmod nvidia, i2c_nforce2
nvidia 4554836 12
agpgart 34888 2 nvidia,amd64_agp
i2c_core 23424 3 i2c_ec,
#md5sum /lib/modules/ 2.6.17- 10-generic/ volatile/ nvidia. ko c75279b72b5fdfb dc /lib/modules/ 2.6.17- 10-generic/ volatile/ nvidia. ko
93001041f9c4fcc