Squashfs I/O error ([Errno 5]) during Linux Mint Cinnamon installation

[Akisolu]

Official FAQ

• I have checked the official FAQ.

Ventoy Version

1.1.17

What about latest release

Yes. I have tried the latest release, but the bug still exist.

Try alternative boot mode

Yes. I have tried them, but the bug still exist.

BIOS Mode

Legacy BIOS Mode

Partition Style

MBR

Disk Capacity

64 GB

Disk Manufacturer

Kingston

Image file checksum (if applicable)

Yes.

Image file download link (if applicable)

https://linuxmint.com/edition.php?id=326

What happened?

Title: Squashfs I/O error ([Errno 5]) during Linux Mint Cinnamon installation on Dell Latitude E5470

Describe the bug
When attempting to install Linux Mint Cinnamon from a USB drive created with Ventoy, the installation fails during the file copying stage with [Errno 5] Input/output error: '/rofs/usr/lib/firewalld' and kernel errors SQUASHFS error: Unable to read directory block / metadata cache entry.

Writing the exact same ISO using Rufus in DD Mode resolves the issue completely on the same hardware and USB drive.

To Reproduce

1. Flash a USB drive with Ventoy (v1.1.17).
2. Copy linuxmint-22.3-cinnamon-64bit.iso to the Ventoy partition.
3. Boot in Legacy/BIOS mode.
4. Launch the Linux Mint installer and proceed with partition setup.
5. Installation crashes during "Copying files".

Expected behavior
The installer should copy files smoothly without Squashfs I/O read errors from the emulated ISO layer.

Environment / Hardware:

• Ventoy Version: 1.1.17
• ISO: Linux Mint Cinnamon 22.3 64-bit (SHA256 verified)
• Machine Model: Dell Latitude E5470
• Boot Mode: Legacy / BIOS (MBR)
• USB Drive: Kingston DataTraveler Exodia

Additional context

• SHA256 hashes for both the ISO and Ventoy were verified prior to installation.
• Tested across multiple physical USB ports with the same result.
• Switching to Rufus (MBR / DD Image Mode) allowed the installation to finish successfully without any Squashfs I/O errors.

Screenshots / Attachments:

• Image 1 (error1_original.jpg): First instance of the installation failure dialog showing [Errno 5] Input/output error: '/rofs/usr/lib/firewalld' (Original in Spanish).
• Image 2 (error1_english_translation.jpg): English translation of the first error via Google Lens.
• Image 3 (error2_original.jpg): Second instance of the [Errno 5] installer crash during a subsequent attempt (Original in Spanish).
• Image 4 (error2_english_translation.jpg): English translation of the second error via Google Lens.
• Image 5 (squashfs_kernel_log.jpg): Terminal kernel log output showing continuous SQUASHFS error: Unable to read page, block / directory block / metadata cache entry errors upon system shutdown/fail.