I am trying to put together a USB stick to use for system emergencies, digital forensics, incident response, etc. (i.e., for when SHTF). I want to have a few Linux ISOs, a bootable Windows 10 partition, an install of CAINE 10, and a FAT partition with some Windows IR tools such as FTK Imager as the final partition.

I have a 256GB Samsung BAR stick. Here is what I have done so far:

  1. Wiped the stick:

    dc3dd wipe=/dev/sdb
  2. I created an MBR partition table with three primary partitions and an extended partition: a 1MB ef02 partition, a 100MB ef00 partition, a 5GB NTFS partition for Windows 10, and an extended partition and a 50GB logical ext4 partition inside the extended partition where the ISOs will go.

  3. I followed these instructions: https://wiki.archlinux.org/index.php/Multiboot_USB_drive#Installing_GRUB and installed grub for BIOS and EFI to the stick.

  4. I copied my Linux Mint 19 ISO to the ext4 partition.

  5. I created a grub.cfg file:

    if loadfont /boot/grub/font.pf2 ; then
        set gfxmode=auto
        insmod efi_gop
        insmod efi_uga
        insmod gfxterm
        terminal_output gfxterm
    set menu_color_normal=white/black
    set menu_color_highlight=black/light-gray
    search --fs-uuid --set isopath --no-floppy [UUID]
    export isopath
    submenu 'Linux' {
        menuentry "Linux Mint" {
        set gfxpayload=keep
        set isofile="($isopath)/linuxmint-19-xfce-64bit-v2.iso"
        loopback loop $isofile
        linux   (loop)/casper/vmlinuz  file=/cdrom/presee/linuxmint.seed boot=casper iso-scan/filename=${isofile} quiet splash --
        initrd  (loop)/casper/initrd.lz

https://i.imgur.com/rEVAkpX.png is what happens. (Not a typewriter? WTF?)

I am testing the stick in a KVM VM, but I get the same results if I try to boot it natively.

Any help would be appreciated.

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