Description of problem: If you attempt to set an acpi_osi option with spaces on the kernel command line, grub2 converts the space character into a "\x20". Version-Release number of selected component (if applicable): grub2-2.00-23.fc19.x86_64 kernel-3.12.9-201.fc19.x86_64 How reproducible: Always. Steps to Reproduce: 1. Add acpi_osi=\"!Windows 2009\" to GRUB_CMDLINE_LINUX at /etc/default/grub 2. Regenerate grub.cfg 3. Reboot Actual results: As can be seen at /proc/cmdline, it has been converted to "acpi_osi=!Windows\x202009". The kernel messages do not show it ignoring _OSI(Windows 2009). The grub.cfg file shows acpi_osi="!Windows 2009" as expected. Expected results: /proc/cmdline should have a space character between "Windows" and "2009". The kernel messages should show it ignoring _OSI(Windows 2009). Additional info: This issue is the same as bug 923374, which was for Fedora 18.
*** This bug has been marked as a duplicate of bug 923374 ***