Multiboot Hdd 2021 Final Updated _top_ Page
This report outlines the state of multiboot HDD/USB setups as of the final 2021 updates
6. Supported Operating Systems (Final 2021 Tested)
| OS / Tool | Boot Mode | Persistence | Notes |
|-----------|-----------|-------------|-------|
| Windows 10/11 (ISO) | UEFI + Legacy | No | Requires NTFS |
| Ubuntu 20.04.3+ | Both | Yes (casper) | Works with ventoy.json |
| Fedora 35 Workstation | Both | Yes | Needs rd.live.overlay |
| Arch Linux (ISO) | Both | Manual | No automatic persistence |
| Hiren’s BootCD PE (Win10 based) | UEFI | No | Excellent recovery |
| GParted Live | Both | No | Stable |
| MemTest86 (free) | UEFI only | No | Works via EFI boot |
| Clonezilla | Both | No | ISO mode fine | multiboot hdd 2021 final updated
9. Future-Proofing after 2021
While this is the final update for the legacy multiboot concept, post-2021 trends include: This report outlines the state of multiboot HDD/USB
3. Dominant Technologies as of 2021
| Tool | Method | 2021 Status | Best For |
|------|--------|-------------|-----------|
| Ventoy | Modifies partition table, mounts ISOs directly | ✅ Final stable v1.0.61 (Dec 2021) | Easiest, UEFI + Secure Boot |
| Easy2Boot | .imgPTN files, partition switching | ✅ RMMC final 2021 update | Legacy BIOS, complex tools |
| GRUB2 (manual) | Custom grub.cfg with loopback | ❌ Declining in 2021 | Advanced customization |
| YUMI / MultibootUSB | Extracts ISOs to folders | ⚠️ Legacy boot only | Simple but outdated | Partitioning: Use GPT for UEFI-first setups; add an
Key considerations
- Partitioning: Use GPT for UEFI-first setups; add an MBR/BIOS-compatible option if you need legacy-only OSes. For maximum compatibility, create both a small MBR partition table (via hybrid tools) or keep a separate small legacy USB for BIOS-only systems.
- Bootloader: rEFInd or GRUB2 handle many ISOs; ventoy offers a simple drop-in ISO approach. For full control, use GRUB2 with custom menu entries.
- Filesystem: FAT32 for EFI System Partition (ESP). Use NTFS/exFAT for large ISO files if boot tool supports them (Ventoy supports NTFS).
- Secure Boot: If enabled, use signed bootloaders (shim + GRUB with proper signing) or disable Secure Boot for easier setup.
- Persistence: For Linux live systems needing persistence, create persistence files/partitions per distro (casper-rw, persistence.conf).
- Safety: Back up important data before repartitioning. Work on a spare HDD if possible.
4. Hardware & Partition Layout (Final 2021 Best Practice)
Recommended Drive:
- 500 GB – 1 TB external HDD/SSD (USB 3.0+)