E2B Payload File Extensions
If you are not sure what file extension will work best and it is an ISO file, use .isoask so that you can test all of them until you find one that works! Read more here.File extensions are not case-sensitive.
File extension suffixes ('pwd', '32' or '64', 'AUTO')
- If you add AUTO to the end of the file extension, the user will not be prompted before switching the image and loading the CSM menu (.imgPTNxxxx files only).
- If you add pwd to the end of the file extension, the user will be prompted for a password before it is run.
- If you add 32 to the end of the file extension, the payload will only be listed in menus on 32-bit systems (v1.62+).
- If you add 64 to the end of the file extension, the payload will only be listed in menus on 64-bit systems.
You can combine suffixes as long as they are in the order .xxxx
<32|64> where xxxx is a valid E2B file extension (v1.78+), e.g. Dium.imgPTNlbaa23AUTOpwd64Clonezilla.isopwd32
If you use a matching .txt file for a payload file, then the menu will always be listed, unless the .txt file also tests for 32-bit or 64-bitness.
List of all file extensions recognised by E2B
Partition image file extensions (v1.51+)
All .imgPTNxxx files MUST be contiguous.
Note: if the file extension is ".imgPTN" and there is a hidden Type 21 partition present (as created by RMPrepUSB or the MAKE_E2B_USB_DRIVE.cmd batch file by default) then the hidden partition will not be removed when you switch parititions. If you think this may be preventing the firmware from 'seeing' the UEFI boot file, try a file extension of .imgPTNLBAa instead.
Using File Extensions with E2B
title MS-DOS 6.22 Floppy Disk\n This boots the file DOS622.imagzmem
More extensions can be supported by editing the \_ISO\E2B\grub\QRUN.g4b grub4dos batch file and adding a new extension section of code to the batch file. Let me know if you want me to support a new extension in the QRUN.g4b file for the next version.
Suggested File Extensions to use for different ISOs/payloads
- Linux ISOs - just keep as .iso (see here if any problems)
- Puppy Linux - try .isopup
- BartPE/XP/XP Rescue ISOs - rename to .isowinv or .isomemwinv (if blank screen after boot, try .isowinve0 or .isowinvHe0)
- Hirens ISOs - rename to .isowinvH or .isoHW (or .isomem for slow loading but faster operation) - or else try extracting the \HBCD or \DLC or \DLC1 folder to the root of the Easy2Boot USB boot drive. See here for more details. For multiple Hirens with full functionality, make a .imgPTN file from each one using MakePartImage.
- Windows Install ISOs - these must be placed in the correct \_ISO\Windows\xxx folder (can also convert to .imgPTN for UEFI-booting)
- HDDR2011 ISO - compress it to .gz file and use .isogz
- Windows based ISOs that give a blank screen when Windows loads - use .isoe0,.isowinve0 or .isowinvHe0 - due to buggy BIOS!
- WinBuilder WinPE (v2/3/4) ISO files - use .isomemF01 or .isoPE01 - see here for more info.
- UEFI ISOs or MSDaRT ISOs - Create a FAT32 .imgPTN file using MakePartImage.cmd
- Windows To Go - create an NTFS .imgPTNA file using MakePartImage - see blog
Compressed payload files
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