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ksud: create our own new ramdisk when no compatible ramdisk found

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Co-authored-by: rifsxd <rifat.44.azad.rifs@gmail.com>
This commit is contained in:
ShirkNeko
2025-09-23 00:48:15 +08:00
parent c64d196a10
commit 6dc803702b
1 changed files with 387 additions and 93 deletions
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478
userspace/ksud/src/boot_patch.rs
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@@ -153,40 +153,126 @@ fn parse_kmi_from_boot(magiskboot: &Path, image: &PathBuf, workdir: &Path) -> Re
parse_kmi_from_kernel(&image_path, workdir)
}
fn do_cpio_cmd(magiskboot: &Path, workdir: &Path, cpio_path: &Path, cmd: &str) -> Result<()> {
fn do_cpio_cmd(magiskboot: &Path, workdir: &Path, cmd: &str) -> Result<()> {
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("cpio")
.arg(cpio_path)
.arg("ramdisk.cpio")
.arg(cmd)
.status()?;
ensure!(status.success(), "magiskboot cpio {} failed", cmd);
Ok(())
}
fn is_magisk_patched(magiskboot: &Path, workdir: &Path, cpio_path: &Path) -> Result<bool> {
fn do_vendor_init_boot_cpio_cmd(magiskboot: &Path, workdir: &Path, cmd: &str) -> Result<()> {
let vendor_init_boot_cpio = workdir.join("vendor_ramdisk").join("init_boot.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("cpio")
.arg(cpio_path)
.arg("test")
.arg(vendor_init_boot_cpio)
.arg(cmd)
.status()?;
ensure!(status.success(), "magiskboot cpio {} failed", cmd);
Ok(())
}
fn do_vendor_ramdisk_cpio_cmd(magiskboot: &Path, workdir: &Path, cmd: &str) -> Result<()> {
let vendor_ramdisk_cpio = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("cpio")
.arg(vendor_ramdisk_cpio)
.arg(cmd)
.status()?;
ensure!(status.success(), "magiskboot cpio {} failed", cmd);
Ok(())
}
fn is_magisk_patched(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.args(["cpio", "ramdisk.cpio", "test"])
.status()?;
// 0: stock, 1: magisk
Ok(status.code() == Some(1))
}
fn is_kernelsu_patched(magiskboot: &Path, workdir: &Path, cpio_path: &Path) -> Result<bool> {
fn is_magisk_patched_vendor_init_boot(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let vendor_init_boot_cpio = workdir.join("vendor_ramdisk").join("init_boot.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("cpio")
.arg(cpio_path)
.arg("exists kernelsu.ko")
.args(["cpio", vendor_init_boot_cpio.to_str().unwrap(), "test"])
.status()?;
// 0: stock, 1: magisk
Ok(status.code() == Some(1))
}
fn is_magisk_patched_vendor_ramdisk(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let vendor_ramdisk_cpio = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.args(["cpio", vendor_ramdisk_cpio.to_str().unwrap(), "test"])
.status()?;
// 0: stock, 1: magisk
Ok(status.code() == Some(1))
}
fn is_kernelsu_patched(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.args(["cpio", "ramdisk.cpio", "exists kernelsu.ko"])
.status()?;
Ok(status.success())
}
fn is_kernelsu_patched_vendor_init_boot(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let vendor_ramdisk_cpio = workdir.join("vendor_ramdisk").join("init_boot.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.args([
"cpio",
vendor_ramdisk_cpio.to_str().unwrap(),
"exists kernelsu.ko",
])
.status()?;
Ok(status.success())
}
fn is_kernelsu_patched_vendor_ramdisk(magiskboot: &Path, workdir: &Path) -> Result<bool> {
let vendor_ramdisk_cpio = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.args([
"cpio",
vendor_ramdisk_cpio.to_str().unwrap(),
"exists kernelsu.ko",
])
.status()?;
Ok(status.success())
@@ -224,7 +310,8 @@ pub fn restore(
let skip_init = kmi.starts_with("android12-");
let (bootimage, bootdevice) = find_boot_image(&image, skip_init, false, false, workdir)?;
let (bootimage, bootdevice) =
find_boot_image(&image, skip_init, false, false, workdir, &magiskboot)?;
println!("- Unpacking boot image");
let status = Command::new(&magiskboot)
@@ -236,36 +323,33 @@ pub fn restore(
.status()?;
ensure!(status.success(), "magiskboot unpack failed");
let mut ramdisk = workdir.join("ramdisk.cpio");
if !ramdisk.exists() {
ramdisk = workdir.join("vendor_ramdisk").join("init_boot.cpio")
}
if !ramdisk.exists() {
ramdisk = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
}
if !ramdisk.exists() {
bail!("No compatible ramdisk found.")
}
let ramdisk = ramdisk.as_path();
let is_kernelsu_patched = is_kernelsu_patched(&magiskboot, workdir, ramdisk)?;
ensure!(is_kernelsu_patched, "boot image is not patched by KernelSU");
let no_ramdisk = !workdir.join("ramdisk.cpio").exists();
// let no_ramdisk = !workdir.join("ramdisk.cpio").exists();
let no_vendor_init_boot = !workdir
.join("vendor_ramdisk")
.join("init_boot.cpio")
.exists();
let no_vendor_ramdisk = !workdir.join("vendor_ramdisk").join("ramdisk.cpio").exists();
let is_kernelsu_patched = is_kernelsu_patched(&magiskboot, workdir)?;
let is_kernelsu_patched_vendor_init_boot =
is_kernelsu_patched_vendor_init_boot(&magiskboot, workdir)?;
let is_kernelsu_patched_vendor_ramdisk =
is_kernelsu_patched_vendor_ramdisk(&magiskboot, workdir)?;
ensure!(
is_kernelsu_patched
|| is_kernelsu_patched_vendor_init_boot
|| is_kernelsu_patched_vendor_ramdisk,
"boot image is not patched by KernelSU"
);
let mut new_boot = None;
let mut from_backup = false;
#[cfg(target_os = "android")]
if do_cpio_cmd(
&magiskboot,
workdir,
ramdisk,
&format!("exists {BACKUP_FILENAME}"),
)
.is_ok()
{
if do_cpio_cmd(&magiskboot, workdir, &format!("exists {BACKUP_FILENAME}")).is_ok() {
do_cpio_cmd(
&magiskboot,
workdir,
ramdisk,
&format!("extract {BACKUP_FILENAME} {BACKUP_FILENAME}"),
)?;
let sha = std::fs::read(workdir.join(BACKUP_FILENAME))?;
@@ -288,13 +372,81 @@ pub fn restore(
}
if new_boot.is_none() {
// remove kernelsu.ko
do_cpio_cmd(&magiskboot, workdir, ramdisk, "rm kernelsu.ko")?;
if !no_ramdisk {
println!("- Restoring /ramdisk");
println!("- Removing /ramdisk/kernelsu.ko");
// remove kernelsu.ko
do_cpio_cmd(&magiskboot, workdir, "rm kernelsu.ko")?;
// if init.real exists, restore it
let status = do_cpio_cmd(&magiskboot, workdir, ramdisk, "exists init.real").is_ok();
if status {
do_cpio_cmd(&magiskboot, workdir, ramdisk, "mv init.real init")?;
// if init.real exists, restore it
println!("- Checking if init.real exists");
let status = do_cpio_cmd(&magiskboot, workdir, "exists init.real").is_ok();
if status {
println!("- /ramdisk/init.real exists");
println!("- Restoring /ramdisk/init.real to init");
do_cpio_cmd(&magiskboot, workdir, "mv init.real init")?;
} else {
println!("- /ramdisk/init.real not found");
println!("- Removing ramdisk.cpio");
let ramdisk = workdir.join("ramdisk.cpio");
std::fs::remove_file(ramdisk)?;
}
} else if !no_vendor_init_boot {
println!("- Restoring /vendor_ramdisk/init_boot");
println!("- Removing /vendor_ramdisk/init_boot/kernelsu.ko");
// vendor init_boot restore
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "rm kernelsu.ko")?;
println!("- Checking if init.real exists");
let status =
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "exists init.real").is_ok();
if status {
println!("- /vendor_ramdisk/init_boot/init.real exists");
println!("- Restoring /vendor_ramdisk/init_boot/init.real to init");
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "mv init.real init")?;
} else {
println!("- /vendor_ramdisk/init_boot/init.real not found");
println!("- Removing vendor_ramdisk/init_boot.cpio");
let vendor_init_boot = workdir.join("vendor_ramdisk").join("init_boot.cpio");
std::fs::remove_file(vendor_init_boot)?;
}
} else if !no_vendor_ramdisk {
println!("- Restoring /vendor_ramdisk/ramdisk");
println!("- Removing /vendor_ramdisk/ramdisk/kernelsu.ko");
// vendor ramdisk restore
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "rm kernelsu.ko")?;
let status =
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "exists init.real").is_ok();
if status {
println!("- /vendor_ramdisk/ramdisk/init.real exists");
println!("- Restoring /vendor_ramdisk/ramdisk/init.real to init");
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "mv init.real init")?;
} else {
println!("- /vendor_ramdisk/ramdisk/init.real not found");
println!("- Removing vendor_ramdisk/ramdisk.cpio");
let vendor_ramdisk = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
std::fs::remove_file(vendor_ramdisk)?;
}
} else {
println!("- Restoring /ramdisk");
println!("- Removing /ramdisk/kernelsu.ko");
// remove kernelsu.ko
do_cpio_cmd(&magiskboot, workdir, "rm kernelsu.ko")?;
// if init.real exists, restore it
println!("- Checking if init.real exists");
let status = do_cpio_cmd(&magiskboot, workdir, "exists init.real").is_ok();
if status {
println!("- /ramdisk/init.real exists");
println!("- Restoring /ramdisk/init.real to init");
do_cpio_cmd(&magiskboot, workdir, "mv init.real init")?;
} else {
println!("- /ramdisk/init.real not found");
println!("- Removing ramdisk.cpio");
let ramdisk = workdir.join("ramdisk.cpio");
std::fs::remove_file(ramdisk)?;
}
}
println!("- Repacking boot image");
@@ -303,7 +455,7 @@ pub fn restore(
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("repack")
.arg(&bootimage)
.arg(bootimage.display().to_string())
.status()?;
ensure!(status.success(), "magiskboot repack failed");
new_boot = Some(workdir.join("new-boot.img"));
@@ -316,7 +468,7 @@ pub fn restore(
let output_dir = std::env::current_dir()?;
let now = chrono::Utc::now();
let output_image = output_dir.join(format!(
"kernelsu_restore_{}.img",
"kernelsu_next_restore_{}.img",
now.format("%Y%m%d_%H%M%S")
));
@@ -424,10 +576,16 @@ fn do_patch(
let skip_init = kmi.starts_with("android12-");
let (bootimage, bootdevice) =
find_boot_image(&image, skip_init, ota, is_replace_kernel, workdir)?;
let (bootimage, bootdevice) = find_boot_image(
&image,
skip_init,
ota,
is_replace_kernel,
workdir,
&magiskboot,
)?;
let bootimage = bootimage.as_path();
let bootimage = bootimage.display().to_string();
// try extract magiskboot/bootctl
let _ = assets::ensure_binaries(false);
@@ -462,48 +620,99 @@ fn do_patch(
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("unpack")
.arg(bootimage)
.arg(&bootimage)
.status()?;
ensure!(status.success(), "magiskboot unpack failed");
let mut ramdisk = workdir.join("ramdisk.cpio");
if !ramdisk.exists() {
ramdisk = workdir.join("vendor_ramdisk").join("init_boot.cpio")
let no_ramdisk = !workdir.join("ramdisk.cpio").exists();
let no_vendor_init_boot = !workdir
.join("vendor_ramdisk")
.join("init_boot.cpio")
.exists();
let no_vendor_ramdisk = !workdir.join("vendor_ramdisk").join("ramdisk.cpio").exists();
if no_ramdisk && no_vendor_init_boot && no_vendor_ramdisk {
println!("- No compatible ramdisk found.");
println!("- Will create our own ramdisk!");
}
if !ramdisk.exists() {
ramdisk = workdir.join("vendor_ramdisk").join("ramdisk.cpio");
}
if !ramdisk.exists() {
bail!("No compatible ramdisk found.");
}
let ramdisk = ramdisk.as_path();
let is_magisk_patched = is_magisk_patched(&magiskboot, workdir, ramdisk)?;
ensure!(!is_magisk_patched, "Cannot work with Magisk patched image");
let is_magisk_patched = is_magisk_patched(&magiskboot, workdir)?;
let is_magisk_patched_vendor_init_boot =
is_magisk_patched_vendor_init_boot(&magiskboot, workdir)?;
let is_magisk_patched_vendor_ramdisk = is_magisk_patched_vendor_ramdisk(&magiskboot, workdir)?;
ensure!(
!is_magisk_patched
|| !is_magisk_patched_vendor_init_boot
|| !is_magisk_patched_vendor_ramdisk,
"Cannot work with Magisk patched image"
);
println!("- Adding KernelSU LKM");
let is_kernelsu_patched = is_kernelsu_patched(&magiskboot, workdir, ramdisk)?;
let is_kernelsu_patched = is_kernelsu_patched(&magiskboot, workdir)?;
let is_kernelsu_patched_vendor_init_boot =
is_kernelsu_patched_vendor_init_boot(&magiskboot, workdir)?;
let is_kernelsu_patched_vendor_ramdisk =
is_kernelsu_patched_vendor_ramdisk(&magiskboot, workdir)?;
let mut need_backup = false;
if !is_kernelsu_patched {
// kernelsu.ko is not exist, backup init if necessary
let status = do_cpio_cmd(&magiskboot, workdir, ramdisk, "exists init");
if status.is_ok() {
do_cpio_cmd(&magiskboot, workdir, ramdisk, "mv init init.real")?;
if (no_ramdisk && !is_kernelsu_patched_vendor_init_boot)
|| (no_ramdisk && no_vendor_init_boot && !is_kernelsu_patched_vendor_ramdisk)
|| !is_kernelsu_patched
{
if !no_ramdisk {
println!("- Checking if /ramdisk/init exists");
let status = do_cpio_cmd(&magiskboot, workdir, "exists init");
if status.is_ok() {
println!("- Backing up ramdisk/init");
do_cpio_cmd(&magiskboot, workdir, "mv init init.real")?;
}
need_backup = flash;
} else if !no_vendor_init_boot {
println!("- Checking if /vendor_ramdisk/init_boot/init exists");
let status = do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "exists init");
if status.is_ok() {
println!("- Backing up vendor_ramdisk/init_boot/init");
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "mv init init.real")?;
}
need_backup = flash;
} else if !no_vendor_ramdisk {
println!("- Checking if /vendor_ramdisk/ramdisk/init exists");
let status = do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "exists init");
if status.is_ok() {
println!("- Backing up vendor_ramdisk/ramdisk/init");
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "mv init init.real")?;
}
need_backup = flash;
} else {
println!("- Checking if /ramdisk/init exists");
let status = do_cpio_cmd(&magiskboot, workdir, "exists init");
if status.is_ok() {
println!("- Backing up ramdisk/init");
do_cpio_cmd(&magiskboot, workdir, "mv init init.real")?;
}
need_backup = flash;
}
need_backup = flash;
}
do_cpio_cmd(&magiskboot, workdir, ramdisk, "add 0755 init init")?;
do_cpio_cmd(
&magiskboot,
workdir,
ramdisk,
"add 0755 kernelsu.ko kernelsu.ko",
)?;
if !no_ramdisk {
println!("- Patching /ramdisk");
do_cpio_cmd(&magiskboot, workdir, "add 0755 init init")?;
do_cpio_cmd(&magiskboot, workdir, "add 0755 kernelsu.ko kernelsu.ko")?;
} else if !no_vendor_init_boot {
println!("- Patching /vendor_ramdisk/init_boot");
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "add 0755 init init")?;
do_vendor_init_boot_cpio_cmd(&magiskboot, workdir, "add 0755 kernelsu.ko kernelsu.ko")?;
} else if !no_vendor_ramdisk {
println!("- Patching /vendor_ramdisk/ramdisk");
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "add 0750 init init")?;
do_vendor_ramdisk_cpio_cmd(&magiskboot, workdir, "add 0750 kernelsu.ko kernelsu.ko")?;
} else {
println!("- Creating and Patching /ramdisk");
do_cpio_cmd(&magiskboot, workdir, "add 0755 init init")?;
do_cpio_cmd(&magiskboot, workdir, "add 0755 kernelsu.ko kernelsu.ko")?;
}
#[cfg(target_os = "android")]
if need_backup {
if let Err(e) = do_backup(&magiskboot, workdir, ramdisk, bootimage) {
if let Err(e) = do_backup(&magiskboot, workdir, &bootimage) {
println!("- Backup stock image failed: {e}");
}
}
@@ -515,7 +724,7 @@ fn do_patch(
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("repack")
.arg(bootimage)
.arg(&bootimage)
.status()?;
ensure!(status.success(), "magiskboot repack failed");
let new_boot = workdir.join("new-boot.img");
@@ -525,7 +734,7 @@ fn do_patch(
let output_dir = out.unwrap_or(std::env::current_dir()?);
let now = chrono::Utc::now();
let output_image = output_dir.join(format!(
"kernelsu_patched_{}.img",
"kernelsu_next_patched_{}.img",
now.format("%Y%m%d_%H%M%S")
));
@@ -570,7 +779,7 @@ fn calculate_sha1(file_path: impl AsRef<Path>) -> Result<String> {
}
#[cfg(target_os = "android")]
fn do_backup(magiskboot: &Path, workdir: &Path, cpio_path: &Path, image: &Path) -> Result<()> {
fn do_backup(magiskboot: &Path, workdir: &Path, image: &str) -> Result<()> {
let sha1 = calculate_sha1(image)?;
let filename = format!("{KSU_BACKUP_FILE_PREFIX}{sha1}");
@@ -582,7 +791,6 @@ fn do_backup(magiskboot: &Path, workdir: &Path, cpio_path: &Path, image: &Path)
do_cpio_cmd(
magiskboot,
workdir,
cpio_path,
&format!("add 0755 {BACKUP_FILENAME} {BACKUP_FILENAME}"),
)?;
println!("- Stock image has been backup to");
@@ -656,16 +864,17 @@ fn find_boot_image(
ota: bool,
is_replace_kernel: bool,
workdir: &Path,
magiskboot: &Path,
) -> Result<(PathBuf, Option<String>)> {
let bootimage;
let mut bootdevice = None;
if let Some(ref image) = *image {
ensure!(image.exists(), "boot image not found");
ensure!(image.exists(), "- Boot image not found");
bootimage = std::fs::canonicalize(image)?;
} else {
if cfg!(not(target_os = "android")) {
println!("- Current OS is not android, refusing auto bootimage/bootdevice detection");
bail!("Please specify a boot image");
bail!("- Please specify a boot image");
}
let mut slot_suffix =
utils::getprop("ro.boot.slot_suffix").unwrap_or_else(|| String::from(""));
@@ -678,27 +887,112 @@ fn find_boot_image(
}
};
let init_boot_exist =
Path::new(&format!("/dev/block/by-name/init_boot{slot_suffix}")).exists();
let vendor_boot_exist =
Path::new(&format!("/dev/block/by-name/vendor_boot{slot_suffix}")).exists();
let boot_partition = if !is_replace_kernel && init_boot_exist && !skip_init {
format!("/dev/block/by-name/init_boot{slot_suffix}")
} else if !is_replace_kernel && vendor_boot_exist && !skip_init {
format!("/dev/block/by-name/vendor_boot{slot_suffix}")
} else {
format!("/dev/block/by-name/boot{slot_suffix}")
};
let init_boot_partition = format!("/dev/block/by-name/init_boot{slot_suffix}");
let vendor_boot_partition = format!("/dev/block/by-name/vendor_boot{slot_suffix}");
let boot_partition = format!("/dev/block/by-name/boot{slot_suffix}");
println!("- Bootdevice: {boot_partition}");
let init_boot_exist = Path::new(&init_boot_partition).exists();
let vendor_boot_exist = Path::new(&vendor_boot_partition).exists();
// helper: unpack a partition and check for a ramdisk and init
fn unpack_and_check_init(
magiskboot: &Path,
workdir: &Path,
partition: &str,
ramdisk_cpio: &str,
) -> Result<bool> {
let tmp_img = workdir.join("probe.img");
dd(partition, &tmp_img)?;
let status = Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("unpack")
.arg(&tmp_img)
.status()?;
if !status.success() {
let _ = std::fs::remove_file(&tmp_img);
return Ok(false);
}
let ramdisk_path = workdir.join(ramdisk_cpio);
let has_init = if ramdisk_path.exists() {
Command::new(magiskboot)
.current_dir(workdir)
.stdout(Stdio::null())
.stderr(Stdio::null())
.arg("cpio")
.arg(ramdisk_cpio)
.arg("exists init")
.status()
.map(|s| s.success())
.unwrap_or(false)
} else {
false
};
// Clean up
let _ = std::fs::remove_file(&tmp_img);
let _ = std::fs::remove_file(workdir.join("ramdisk.cpio"));
let _ = std::fs::remove_dir_all(workdir.join("vendor_ramdisk"));
Ok(has_init)
}
let mut selected_partition = &boot_partition;
if !is_replace_kernel && init_boot_exist && !skip_init {
// try init_boot/ramdisk.cpio
if unpack_and_check_init(magiskboot, workdir, &init_boot_partition, "ramdisk.cpio")? {
println!("- Using init_boot partition (ramdisk.cpio).");
selected_partition = &init_boot_partition;
}
}
// try vendor_boot/vendor_ramdisk/init_boot.cpio
if selected_partition == &boot_partition
&& !is_replace_kernel
&& vendor_boot_exist
&& !skip_init
{
if unpack_and_check_init(
magiskboot,
workdir,
&vendor_boot_partition,
"vendor_ramdisk/init_boot.cpio",
)? {
println!("- Using vendor_boot partition (vendor_ramdisk/init_boot.cpio).");
selected_partition = &vendor_boot_partition;
}
}
// try vendor_boot/vendor_ramdisk/ramdisk.cpio
if selected_partition == &boot_partition
&& !is_replace_kernel
&& vendor_boot_exist
&& !skip_init
{
if unpack_and_check_init(
magiskboot,
workdir,
&vendor_boot_partition,
"vendor_ramdisk/ramdisk.cpio",
)? {
println!("- Using vendor_boot partition (vendor_ramdisk/ramdisk.cpio).");
selected_partition = &vendor_boot_partition;
}
}
if selected_partition == &boot_partition {
println!("- Using boot partition (ramdisk.cpio).");
}
println!("- Bootdevice: {selected_partition}");
let tmp_boot_path = workdir.join("boot.img");
dd(&boot_partition, &tmp_boot_path)?;
dd(selected_partition, &tmp_boot_path)?;
ensure!(tmp_boot_path.exists(), "boot image not found");
ensure!(tmp_boot_path.exists(), "- Tmp boot image not found");
bootimage = tmp_boot_path;
bootdevice = Some(boot_partition);
bootdevice = Some(selected_partition.to_string());
};
Ok((bootimage, bootdevice))
}