fbcc388917
On systems which support multiple boot platforms such as BIOS and EFI, it makes no sense to show menu entries which are not supported by the current boot platform. Menu entries generated from os-prober "chain" boot type use boot sector chainloading which is supported on PC BIOS platform only. Show "chain" menu entries only if boot platform is PC BIOS. Show "efi" menu entries only if boot platform is EFI. This is aimed to allow os-prober to report both EFI and PC BIOS boot loaders regardless of the current boot mode on x86 systems which support both EFI and legacy BIOS boot, in order to generate a config file which can be used with either BIOS or EFI boot. Signed-off-by: Pascal Hambourg <pascal@plouf.fr.eu.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
All executable files in this directory are processed in shell expansion order. 00_*: Reserved for 00_header. 10_*: Native boot entries. 20_*: Third party apps (e.g. memtest86+). The number namespace in-between is configurable by system installer and/or administrator. For example, you can add an entry to boot another OS as 01_otheros, 11_otheros, etc, depending on the position you want it to occupy in the menu; and then adjust the default setting via /etc/default/grub.