mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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ec8df1628c
BUG=chrome-os-partner:9706
TEST=manual
Currently, Link is the only platform that enables this feature.
To enter dev-mode:
Boot into recovery mode using the magic key chord. At the Insert screen,
press Ctrl-D. You'll be asked if you want to enter developer mode. If you
then press ENTER, it will reboot with dev-mode enabled. If you press SPACE
or ESC, it will return to the Insert screen.
If you enter recovery mode through any other means, or if dev-mode is
already enabled, pressing Ctrl-D at the Insert screen will have no effect.
To return to normal mode:
Reboot. At the Dev screen, press ENTER or SPACE. It will reboot to
recovery mode and ask you if you want to return to normal mode. If you
press ESC or power off, you'll still be in dev-mode. Press ENTER or SPACE,
and it will reboot into normal mode (of course, if you've messed up your
images while in dev-mode, you'll just come right back to recovery mode
again).
You can also request a direct return to normal mode by running
crossystem disable_dev_request=1
and rebooting.
Change-Id: I435905855a6c39932ee466cc046bdc4c4c860f98
Reviewed-on: https://gerrit.chromium.org/gerrit/24160
Tested-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
62 lines
1.2 KiB
C
62 lines
1.2 KiB
C
/* Copyright (c) 2010-2011 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Functions for querying, manipulating and locking rollback indices
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* stored in the TPM NVRAM.
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*/
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#include "rollback_index.h"
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#include "tss_constants.h"
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uint32_t TPMClearAndReenable(void) {
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return TPM_SUCCESS;
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}
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uint32_t SetupTPM(int recovery_mode, int developer_mode,
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RollbackSpaceFirmware* rsf) {
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return TPM_SUCCESS;
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}
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uint32_t RollbackS3Resume(void) {
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return TPM_SUCCESS;
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}
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uint32_t RollbackFirmwareSetup(int recovery_mode, int is_hw_dev,
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int disable_dev_request,
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int *is_virt_dev, uint32_t *version) {
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*version = 0;
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return TPM_SUCCESS;
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}
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uint32_t RollbackFirmwareWrite(uint32_t version) {
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return TPM_SUCCESS;
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}
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uint32_t RollbackFirmwareLock(void) {
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return TPM_SUCCESS;
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}
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uint32_t RollbackKernelRead(uint32_t* version) {
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*version = 0;
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return TPM_SUCCESS;
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}
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uint32_t RollbackKernelWrite(uint32_t version) {
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return TPM_SUCCESS;
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}
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uint32_t RollbackKernelLock(void) {
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return TPM_SUCCESS;
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}
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