Dec 15, 2018 - Linux can boot fine from a GPT disk in BIOS mode, so there's no need to do the. To do is to install a BIOS-mode boot loader (GRUB, LILO, or SYSLINUX) to the disk. REFInd can then boot Windows in EFI mode and boot the. The answer to that (the simpler one) is: From the Syslinux you already installed you can: load a BOOTMGR with a multichoice boot BCD with one entry in it for every NT based system (this might have some limitations) load a set of BOOTMGR and boot BCD files, by using 'Boot floppy images' (this might have some limitations).

Boot process overview • Stage 1: Part 1 - Load MBR - At boot, the BIOS loads the 440 byte MBR boot code at the start of the disk (/usr/lib/syslinux/bios/mbr.bin or /usr/lib/syslinux/bios/gptmbr.bin). • Stage 1: Part 2 - Search active partition. Chertezhi proektov kafe. The Stage 1 MBR boot code looks for the partition that is marked as active (boot flag in MBR disks). Let us assume this is the /boot partition for example. • Stage 2: Part 1 - Execute volume boot record - The Stage 1 MBR boot code executes the Volume Boot Record (VBR) of the /boot partition. In the case of syslinux, the VBR boot code is the starting sector of /boot/syslinux/ldlinux.sys which is created by the extlinux –install command.

• Stage 2: Part 2 - Execute /boot/syslinux/ldlinux.sys - The VBR will load rest of /boot/syslinux/ldlinux.sys. The sector location of /boot/syslinux/ldlinux.sys should not change, otherwise syslinux will not boot. Note In the case of Btrfs, the above method will not work since files move around resulting in changing of the sector location of ldlinux.sys. Therefore, in BTRFS the entire ldlinux.sys code is embedded in the space following the VBR and is not installed at /boot/syslinux/ldlinux.sys unlike the case of other filesystems. • Stage 3 - Load /boot/syslinux/ldlinux.c32 - The /boot/syslinux/ldlinux.sys will load the /boot/syslinux/ldlinux.c32 (core module) that contains the rest of core part of syslinux that could not be fit into ldlinux.sys (due to file-size constraints). The ldlinux.c32 should be present in every syslinux installation and should match the version of ldlinux.sys installed in the partition.

Otherwise syslinux will fail to boot. See for more info. • Stage 4 - Search and Load configuration file - Once Syslinux is fully loaded, it looks for /boot/syslinux/syslinux.cfg (or /boot/syslinux/extlinux.conf in some cases) and loads it if it is found. If no configuration file is found, you will be dropped to a syslinux boot: prompt. This step and rest of non-core part of syslinux ( /boot/syslinux/*.c32 modules, excluding lib*.c32 and ldlinux.c32) require /boot/syslinux/lib*.c32 (library) modules to be present ().

The lib*.c32 library modules and non-core *.c32 modules should match the version of ldlinux.sys installed in the partition. Limitations of UEFI Syslinux • UEFI Syslinux application syslinux.efi cannot be signed by sbsign (from sbsigntool) for UEFI Secure Boot. Bug report - • Using TAB to edit kernel parameters in UEFI Syslinux menu lead to garbaged display (text on top of one-another). Bug report - • UEFI Syslinux does not support chainloading other EFI applications like UEFI Shell or Windows Boot Manager. Enhancement request - • In some cases, UEFI Syslinux might not boot in some Virtual Machines like QEMU/OVMF or VirtualBox or some VMware products/versions and in some UEFI emulation environments like DUET. A Syslinux contributor has confirmed no such issues present on VMware Workstation 10.0.2 and Syslinux-6.02 or later.

Bug reports - and • Memdisk is not available for UEFI. Enhancement request.