Hi, Grub scripts which are using fgrep are 10_linux and 20_linux_xen. When these scripts run the produce the following message:
fgrep: warning: fgrep is obsolescent; using grep -F regards, Stephen Morris
OpenPGP_0x594338B1DE179AB2.asc
Description: OpenPGP public key
OpenPGP_signature
Description: OpenPGP digital signature