I have upgraded my BIOS. After that I am able to boot to Ubuntu 9.10 Alpha 4 from SDHC. It is a BIOS issue
** Changed in: grub2 (Ubuntu) Status: New => Invalid -- GRUB2 hangs displaying "Entering rescue mode" when we try to boot thru SD card in the Intel ATOM board https://bugs.launchpad.net/bugs/418013 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs