Is it possible to prevent the automatic reboot that follows
fastboot -w image.zip
? This would be quite useful for batch files. Thanks for any hint :-)
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usage: fastboot [ <option> ] <command> commands: update <filename> reflash device from update.zip flashall 'flash boot' + 'flash system' flash <partition> [ <filename> ] write a file to a flash partition erase <partition> erase a flash partition getvar <variable> display a bootloader variable boot <kernel> [ <ramdisk> ] download and boot kernel flash:raw boot <kernel> [ <ramdisk> ] create bootimage and flash it devices list all connected devices reboot reboot device normally reboot-bootloader reboot device into bootloader options: -w erase userdata and cache -s <serial number> specify device serial number -p <product> specify product name -c <cmdline> override kernel commandline
I think it's safe to assume that the options listed here are the options you have available to you when running the
fastboot binary. Since there doesn't seem to be an override as a native function of
fastboot, your only solution would be to access the source code of
fastboot (if available) and remove or alter the part of the code where the device reboots.
Note that there might be very good reasons as to why the device reboots at that stage, so I'd be careful with messing around with it.
I believe you're looking for the "--skip-reboot" switch, ex:
fastboot -w update image-marlin-opm1.171019.012.zip --skip-reboot
commands: update <filename> Reflash device from update.zip. Sets the flashed slot as active. flashall Flash boot, system, vendor, and -- if found -- recovery. If the device supports slots, the slot that has been flashed to is set as active. Secondary images may be flashed to an inactive slot. flash <partition> [ <filename> ] Write a file to a flash partition. flashing lock Locks the device. Prevents flashing. flashing unlock Unlocks the device. Allows flashing any partition except bootloader-related partitions. flashing lock_critical Prevents flashing bootloader-related partitions. flashing unlock_critical Enables flashing bootloader-related partitions. flashing get_unlock_ability Queries bootloader to see if the device is unlocked. flashing get_unlock_bootloader_nonce Queries the bootloader to get the unlock nonce. flashing unlock_bootloader <request> Issue unlock bootloader using request. flashing lock_bootloader Locks the bootloader to prevent bootloader version rollback. erase <partition> Erase a flash partition. format[:[<fs type>][:[<size>]] <partition> Format a flash partition. Can override the fs type and/or size the bootloader reports. getvar <variable> Display a bootloader variable. set_active <slot> Sets the active slot. If slots are not supported, this does nothing. boot <kernel> [ <ramdisk> [ <second> ] ] Download and boot kernel. flash:raw <bootable-partition> <kernel> [ <ramdisk> [ <second> ] ] Create bootimage and flash it. devices [-l] List all connected devices [with device paths]. continue Continue with autoboot. reboot [bootloader|emergency] Reboot device [into bootloader or emergency mode]. reboot-bootloader Reboot device into bootloader. oem <parameter1> ... <parameterN> Executes oem specific command. stage <infile> Sends contents of <infile> to stage for the next command. Supported only on Android Things devices. get_staged <outfile> Receives data to <outfile> staged by the last command. Supported only on Android Things devices. help Show this help message. options: -w Erase userdata and cache (and format if supported by partition type). -u Do not erase partition before formatting. -s <specific device> Specify a device. For USB, provide either a serial number or path to device port. For ethernet, provide an address in the form <protocol>:<hostname>[:port] where <protocol> is either tcp or udp. -c <cmdline> Override kernel commandline. -i <vendor id> Specify a custom USB vendor id. -b, --base <base_addr> 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 Specify a custom tags offset. (default: 0x00000100) -n, --page-size <page size> Specify the nand page size (default: 2048). -S <size>[K|M|G] Automatically sparse files greater than 'size'. 0 to disable. --slot <slot> Specify slot name to be used if the device supports slots. All operations on partitions that support slots will be done on the slot specified. '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[=<slot>] Sets the active slot. If no slot 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. --skip-secondary Will not flash secondary slots when performing a flashall or update. This will preserve data on other slots. --skip-reboot Will not reboot the device when performing commands that normally trigger a reboot. --disable-verity Set the disable-verity flag in the the vbmeta image being flashed. --disable-verification Set the disable-verification flag in the vbmeta image being flashed. --unbuffered Do not buffer input or output. --version Display version. -h, --help show this message.