# iPXE sanboot cannot chainload Windows MBR/VBR. # GRUB2 ntldr /bootmgr freezes. grub4dos chainloader gives "BOOTMGR corrupt". # wimboot loads bootmgr + BCD into a ramdisk, bypassing iPXE disk access ...

When Ubuntu changed to Grub 2 a couple of releases ago, it became significantly more difficult to set up multi-boot Linux systems. Most if not all Ubuntu derivatives are also using Grub2, and now the ...

+ * The following code is a quirk to support the TrueNAS CD Builder. + * It copies the signed shim and grub binaries to the EFI boot directory + * and creates a grub.cfg that loads the TrueNAS kernel.