[T430] System abruptly shuts down during Tails OS 7.9 boot (after selecting boot post-verification) on commit 533630e

[n09343864-collab]

System Information

• Device: ThinkPad T430 (using EOL_t430-maximized board config)
• Heads Version: master branch - v0.2.1-3051-g533630e (CircleCI build Understand how CBFS size relates to the MRC/CAR #1324, 2026-06-14)
• Tails Version: Tails 7.9 ISO

Describe the Bug

After validating the Tails OS 7.9 ISO signature and manually selecting the option to boot, the Tails logo appears. However, while the boot process is underway, the machine abruptly cuts power and shuts down completely.

Steps to Reproduce

Flash the heads-EOL_t430-maximized ROM built from commit 533630e.
Boot into Heads, and navigate to the boot options to select the Tails OS 7.9 ISO from the USB drive.
Proceed with the ISO signature verification.
After verification is complete, manually select the option to boot.
The Tails logo appears on the screen, and the boot process begins.
During this boot phase, the system suddenly cuts power and shuts down.

Expected Behavior

After selecting boot, Tails OS 7.9 should load into the desktop environment.

Actual Behavior

The Tails logo appears, but the machine shuts down abruptly during the boot process. No logs can be extracted because the system terminates instantly.

[tlaurion]

Couldn't reproduce on x230 with same commit as reported in OP. Have you tried typing Escape key while booting and see what happens there and try to grab a picture?

I chose option 1 (Tails 7.9 [Kernel /live/vmlinuz], 3 [troubleshoooting] and 4 [External Hard disk], without issues.

Choose option 3 and try to get the error after having typed Escape key early after kexec call, before it shuts down?

It's on a Blue labeled USB port (USB3)?

Hypothesis is that USB thumb drive (flash) might have issues with sequential reads even though it succeeds validating iso integrity.
Can you replicate with another USB thumb drive?

[tlaurion]

@n09343864-collab could you try zip file of #2130 ? That would help me a lot.