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Add support for Acer Chromebook 515 Plus (CB515-2H) / Google Omnigul Platform #1663
Seems like PolicyPassword should be switched to PolicyAuthValue
@mdrobnak@MrChromebox See #2055 (comment), doesn't break current tpm2 support and would (should?) permit support of chromebooks with cr50+ TPM2 Disk Unlock Key (DUK) sealing/unsealing. Ping me, this is exciting.
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mdrobnak commentedon May 15, 2024
Lifecycle Extension Guide from Acer - Shows how to disassemble parts of the laptop. [
Flash chip is on underside of board.
WSON8 6x8 mm probe necessary to unlock flash descriptor.
flashrom in Ubuntu 23.10 can reach chip using external programmer.
ifdtool used to unlock flash descriptor and enable HAP bit.
flashroom used to flash modified descriptor and machine boots fine.
tlaurion commentedon Nov 16, 2024
@mdrobnak
Ref: #1658 (comment)
Revisiting to understand root cause of issue. Supporting Chromebooks would be amazing.
tlaurion commentedon Feb 22, 2026
Seems like PolicyPassword should be switched to PolicyAuthValue
tlaurion commentedon Feb 23, 2026
@mdrobnak @MrChromebox See #2055 (comment), doesn't break current tpm2 support and would (should?) permit support of chromebooks with cr50+ TPM2 Disk Unlock Key (DUK) sealing/unsealing. Ping me, this is exciting.