pacman -S kernel26

Targets: kernel26-2.6.20-1

Total Package Size:   19.5 MB

Proceed with upgrade? [Y/n] y

checking package integrity... done.
loading package data... done.
checking for file conflicts...
error: the following file conflicts were found:
  kernel26: /lib/modules/2.6.20-ARCH/modules.alias: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.ccwmap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.dep: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.ieee1394map: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.inputmap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.isapnpmap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.ofmap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.pcimap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.seriomap: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.symbols: exists in filesystem
  kernel26: /lib/modules/2.6.20-ARCH/modules.usbmap: exists in filesystem


errors occurred, no packages were upgraded.