I created 2 partitions on my pendrive. The first partition is big one and I use it for general purpose file storage. The second partition is small one and I made debian-jessie install in this one. I use this for recovery purposes on different systems.Whenever I connect the pendrive and power on any system, when it boots from usb, it shows debian entry on usb and other entries that are irrevelant since they change from system to system. To boot into the hard disk I need to unplug the pendrive and reboot. Or I had to boot into pendrive debian and #update-grub.That makes rebooting twice. I wish I could just have a defaulted menu entry on pendrive grub that just skips booting any os on pendrive and go to 2nd disk's mbr and boot from that disk. Is that possible?
grub2 create menu entry to skip the current disk os while booting
debian;grub2;usb drive