「fastboot」

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fastboot – Android flashing and booting utility

SYNOPSIS

fastboot [-w] [-u] [-s device] [-p product] [-c cmdline] [-i vendorId] [-b baseAddr] [-n pageSize] [-S size[K|M|G]] command

DESCRIPTION

fastboot is a command line tool for flashing an Android device, boot an Android device to fastboot mode, etc..

OPTIONS

-w Erase userdata and cache (and format if supported by partition type).

-u Do not erase partition before formatting.

-s device

Specify device serial number or path to device port.

-l With devices command, list device paths.”

-p product

Specify product name.

-c cmdline

Override kernel commandline.

-i vendorId

Specify a custom USB vendor ID.

-b|–base baseAddr

Specify a custom kernel base address (default: 0x10000000).

–kernel-offset

Specify a custom kernel offset (default: 0x00008000).

–ramdisk-offset

Specify a custom ramdisk offset (default: 0x01000000).

–tags-offset offset

Specify a custom tags offset (default: 0x00000100).

-n|–page-size pageSize

Specify the nand page size (default: 2048).

-S size[K|M|G]

Automatically sparse files greater than ‘size’. 0 to disable.

–slot suffix

Specify slot suffix to be used if the device supports slots. This will be added to all partition names that use slots. all can be given to refer to all slots. other can be given to refer to a non-current slot. If

this flag is not used, slotted partitions will default to the current active slot.

-a, –set-active[=]

Sets the active slot. If no suffix is provided, this will default to the value given by –slot. If slots are not supported, this does nothing. This will run after all non-reboot commands.

–wipe-and-use-fbe

On devices which support it, erase userdata and cache, and enable file-based encryption.

–unbuffered

Do not buffer input or output.

–version

Display version.

-h|–help

show this message.

COMMANDS

fastboot update filename

Reflash device from update.zip.

fastboot flashall

Flash boot, system, vendor, and (if found) recovery.

fastboot flash partition [filename]

Write a file to a flash partition.

fastboot flashing lock

Locks the device. Prevents flashing.

fastboot flashing unlock

Unlocks the device. Allows flashing any partition except bootloader-related partitions.

fastboot flashing lock_critical

Prevents flashing bootloader-related partitions.

fastboot flashing unlock_critical

Enables flashing bootloader-related partitions.

fastboot flashing get_unlock_ability

Queries bootloader to see if the device is unlocked.

fastboot erase partition

Erase a flash partition.

fastboot format[:[fs type][:[size]] partition

Format a flash partition. Can override the fs type and/or size the bootloader reports.

fastboot getvar variable

Display a bootloader variable.

fastboot set_active suffix

Sets the active slot. If slots are not supported, this does nothing.

fastboot boot kernel [ramdisk [second]]

Download and boot kernel.

fastboot flash:raw boot kernel [ramdisk [second]]

Create bootimage and flash it.

fastboot devices [-l]

List all connected devices (with device paths if -l is used).

fastboot continue

Continue with autoboot.

fastboot reboot [bootloader]

Reboot device [into bootloader].

fastboot reboot-bootloader

Reboot device into bootloader.

fastboot help

Show this help message.

参考文献

man 1 fastboot, verison 7.0.0_r1