hd-media/boot.img does not contain a partition table, it is just an fs: $ file boot.img boot.img: DOS/MBR boot sector, code offset 0x58+2, OEM-ID "SYSLINUX", sectors/cluster 8, Media descriptor 0xf8, sectors/track 63, heads 255, sectors 1953120 (volumes > 32 MB) , FAT (32 bit), sectors/FAT 1904, serial number 0xdeb00001, label: "Debian Inst"
I tried to find support that a partition table is required. The best I could find this this: "The following list outlines the advantages of using the GPT disk layout over the legacy Master Boot Record (MBR) disk layout: ..." http://www.uefi.org/sites/default/files/resources/UEFI%20Spec%202_7_A%20Sept%206.pdf And these comments from IRC: waldi: well, if you boot something without efi partition, it will only work with csm "In November 2017, Intel announced that it planned to phase out support for CSM by 2020." https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface#CSM_booting CarlFK: is there a reason why hd-media/boot.img.gz does not have a partition table?waldi: maybe because no-one bothered to change it?
