One of the main purposes of lk2nd is to have a replacement for
the stock bootloader "Odin mode" on many Samsung devices with
sane fastboot implementation, which supports many more features
like live booting and many others.
This is done by using heimdall to flash lk2nd to device's boot
partition. Allow this method to be used with this flash action.
Stock bootloader on these devices boots kernel (it is intended to boot
kernel, but i place secondary bootloader there) from special ChromeOS
kernel partition on special GPT which is created with cgpt utility.
This MR adds initial support for it introducing new deviceinfo options:
- cgpt_kpart - path to file to be flashed to ChromeOS partition;
- cgpt_kpart_start - offset from the start in sectors;
- cgpt_kpart_size - partition size in sectors.
For example:
deviceinfo_cgpt_kpart="/usr/share/u-boot/google-peach-pit/u-boot-dtb.img.kpart"
deviceinfo_cgpt_kpart_start="8192"
deviceinfo_cgpt_kpart_size="32768"
cgpt requires start and size values of partition, so these values
are calculated for each partition.
Reserved size and on-device installer are not yet supported.
Reference: https://archlinuxarm.org/platforms/armv7/samsung/samsung-chromebook
This makes QEMU trap signals like Ctrl-C and send it to the guest
instead of terminating QEMU.
To quit QEMU with this option you can use [Ctrl-A] [x]
or
[Ctrl-A] [c] and type 'quit' at the prompt.
This behavior is disabled by default, and can be enabled by setting a
new option in the pmbootstrap.cfg (using "pmbootstrap config
qemu_redir_stdio true")
Co-authored-by: Luca Weiss <luca@z3ntu.xyz>
The PPP will, in combination with tow-boot, boot with GPT on the
internal storage. We need to support that on postmarketOS and as a first
step, let's make it possible to generate GPT images and boot from that
pmbootstrap netboot command exposes the generated vendor-codename.img
rootfs through nbd interface so that device can mount it and boot
postmarketOS without having any storage medium at all.
Co-authored-by: Luca Weiss <luca@z3ntu.xyz>
* On newer samsung devices disabling these does the exact opposite of
what's mentioned in 50cdf04760
* With these enabled the device boots up just fine
The provider selection for "pmbootstrap init" added in this commit
is a flexible way to offer UI/device-specific configuration options
in "pmbootstrap init", without hardcoding them in pmbootstrap.
Instead, the options are defined entirely in pmaports using APK's
virtual package provider mechanism. The code in pmbootstrap searches
for available providers and displays them together with their pkgdesc.
There are many possible use cases for this but I have tested two so far:
1. Selecting root provider (sudo vs doas). This can be defined entirely
in postmarketos-base, without having to handle this specifically in
pmbootstrap.
$ pmbootstrap init
[...]
Available providers for postmarketos-root (2):
* sudo: Use sudo to run root commands (**default**)
* doas: Use doas (minimal replacement for sudo) to run root commands
(Note: Does not support all functionality of sudo)
Provider [default]: doas
2. Device-specific options. My main motivation for working on this
feature is a new configuration option for the MSM8916-based devices.
It allows more control about which firmware to enable:
$ pmbootstrap init
[...]
Available providers for soc-qcom-msm8916-rproc (3):
* all: Enable all remote processors (audio goes through modem) (default)
* no-modem: Disable only modem (audio bypasses modem, ~80 MiB more RAM)
* none: Disable all remote processors (no WiFi/BT/modem, ~90 MiB more RAM)
Provider [default]: no-modem
The configuration prompts show up dynamically by defining
_pmb_select="<virtual packages>" in postmarketos-base, a UI PKGBUILD
or the device APKBUILD. Selecting "default" (just pressing enter)
means that no provider is selected. This allows APK to choose it
automatically based on the "provider_priority". It also provides
compatibility with existing installation; APK will just choose the
default provider when upgrading. The selection can still be changed
after installation by installing another provider using "apk".
Note that at the end this is just a more convenient interface for the
already existing "extra packages" prompt. When using pmbootstrap in
automated scripts the providers (e.g. "postmarketos-root-doas") can be
simply selected through the existing "extra_packages" option.
iwd seems like a promising alternative to wpa_supplicant. It uses crypto
implementations from the kernel, so let's make kconfig check aware of
the options it needs.
Replace "args.arch_native" with the direct function call in order to
avoid passing "args" to all functions. This is a step to get rid of this
args-passed-to-all-functions pattern in pmbootstrap.
The main option - CONFIG_ZRAM - was not checked.
Add it and its direct requirement - CONFIG_ZSMALLOC.
The other two (ZSMALLOC_STAT, ZRAM_MEMORY_TRACKING) are
for debugging information only.
While zram has uses outside of swap-on-zram, I would believe that the
main use of zram in postmarketOS is swap-on-zram. In addition to that,
I imagine many probably expect swap-on-zram to work if the zram kconfig
succeeds.
Oliver Smith
Enrico Lumetti
Newbyte
Alexey Min
Bart Ribbers
Luca Weiss
jenneron
Martijn Braam
Clayton Craft
Tony Garnock-Jones
Caleb Connolly
Marian Stramm
Mark Hargreaves
Anjandev Momi
Tim Zimmermann
Jami Kettunen
Ultracoolguy
Minecrell
bo41
Pablo Correa Gómez
afeuerstein