mirror of
https://github.com/linux-msm/qbootctl.git
synced 2026-02-25 13:13:44 -08:00
d30d9dfc03
Otherwise reading information like `qbootctl -a` triggers removal and readdition of all partitions like: ``` KERNEL[73264.679695] remove /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) KERNEL[73264.748249] add /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) KERNEL[73264.863286] remove /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) KERNEL[73264.917664] add /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) UDEV [73264.980859] remove /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) UDEV [73265.150742] add /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) UDEV [73265.276134] remove /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) UDEV [73265.492442] add /devices/platform/soc@0/1d84000.ufshc/host0/target0:0:0/0:0:0:4/block/sde/sde11 (block) …[the same for all other partitions on sde]… ``` leading to wasted CPU cycles (and battery) but also making programms that run right after that command and accessing one of the partitions fail sporadically. This can be bad if those commands are e.g. doing a ``` cat /dev/disk/by-partlabel/boot_a ``` to backup the current boot partition.
Qualcomm bootctl HAL for Linux
This HAL was pulled from AOSP source code and bastardised to build and run on a musl/glibc system. This may or may not render any hardware you run it on unusable, you have been warned.
Dependencies
- zlib-dev
- meson
- cmake
- linux-headers
Building
qbootctl uses the meson build system
meson build
meson compile -C build
Usage
qbootctl: qcom bootctrl HAL port for Linux
-------------------------------------------
qbootctl [-c|-m|-s|-u|-b|-n|-x] [SLOT]
<no args> dump slot info (default)
-h this help text
-c get the current slot
-b SLOT check if SLOT is marked as bootable
-n SLOT check if SLOT is marked as successful
-x [SLOT] get the slot suffix for SLOT (default: current)
-s SLOT set to active slot to SLOT
-m [SLOT] mark a boot as successful (default: current)
-u [SLOT] mark SLOT as unbootable (default: current)
-i still write the GPT headers even if the UFS bLun can't be changed (default: false)
Debugging
Set DEBUG to 1 in utils.h to enable debug logging.
Documentation
A more details explanation and a list of devices where qbootctl has been validated can be found on the postmarketOS wiki: