SteveSi

Did you disable Secure Boot? Is the F: volume FAT32 (right-click - Properties - File System= ?) Did you try UEFI booting on another computer? Did you try Virtual Box + VMUB and UEFI64 booting from the USB stick? https://www.easy2boot.com/testing-e2b/using-qemu-or-virtual-box/

The USB stick must be formatted as FAT32. It should contain a \EFI\BOOT\BOOTX64.EFI file (and others).

Well the first screen of KRD is a graphics mode screen. So probably that explains it.

You should see a Kaspersky lab boot menu and then press ENTER for English. Flash drives are very cheap - or maybe borrow one from a friend. If a different flash drive gives the same problem, then try changing your BIOS settings.

OK - why not add alldev code to menu - will it do any harm? Thank you for your help. Much appreciated.

OK - If I use all original files from the ISO then it UEFI-boots, but if I modify kav_menu.cfg to add backstore=alldev then it will not boot. I can select English and press ENTER but nothing happens. If I restore original kav_menu.cfg then it boots (but no persistence). So how can I have persistence with a USB hard disk on UEFI-boot?

This is just before the 'Something goes wrong...' message appears. Not Secure Boot. Happens under VirtualBox booting from FAT32 USB drive and real system. USB drive was not made using dd but by MBR partition + FAT32 volume. Standard grub2 Ubuntu boot files work fine. grub.cfg was not modified - it still has commented out lines as in latest ISO. set default=0 set timeout=10 set answer=0 clear #echo -n "Press ESC to load Kaspersky Rescue Disk... " #if sleep --verbose --interruptible ${timeout} ; then # set timeout=0 # set default=0 # source /boot/grub/cfg/en.cfg # source /boot/grub/${grub_cpu}-${grub_platform}/cfg/boot_from_hard.cfg #else source /boot/grub/cfg/lang_menu.cfg #fi

P.S. I can just see the initial error message 'unknown filesystem' before the 'Something goes wrong..' error message. I think maybe FAT32 (standard UEFI filesystem format) is not supported by UEFI boot files?

Thanks, that works. I have a problem with UEFI booting though... re. UEFI booting, the latest ISO has \boot\EFI folder with \EFI\boot\bootx64.efi 2019-08-08 \EFI\boot\krd_grub.efi 2019-08-08 'Something goes wrong with config (hd0,msdos1)/boot/grub/grub.cfg' but if I add \EFI\boot\grubx64.efi and bootx64.efi from an Ubuntu ISO it works OK. Any ideas?

Yes - the krd.bs is not found on booting. I just made a .imgPTN file using Easy2Boot. https://rmprepusb.blogspot.com/2014/04/adding-kaspersky-rescue-iso-to.html I am the developer of Easy2Boot.

The 'Create persistent volume' start menu script creates a \data\krd.bs file when booting from a USB hard disk, but persistence does not work when you reboot and there is no \livemnt\backstore or \livemnt\boot. It works OK only if the USB drive is a Removable type of USB drive. This means we cannot have persistence when using multiboot USB hard disks, USB Corsair GTX flash drive or USB Silverstone M.2 drive enclosures, etc,