Add riscv64 architecture support for bootc

config.yaml

@@ -0,0 +1,15 @@
+actions:
+  - modify_release:
+    - suffix: ".alma.1"
+      enabled: true
+
+  - changelog_entry:
+      - name: "Andrew Lukoshko"
+        email: "alukoshko@almalinux.org"
+        line:
+          - "Add RISC-V support"
+
+  - add_files:
+      - type: "patch"
+        name: "0001-Add-riscv64-architecture-support.patch"
+        number: 1001

files/0001-Add-riscv64-architecture-support.patch

@@ -0,0 +1,57 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Andrew Lukoshko <alukoshko@almalinux.org>
+Date: Thu, 20 Feb 2026 00:00:00 +0000
+Subject: [PATCH] Add riscv64 architecture support
+
+Add RISC-V 64-bit (riscv64) to the set of supported architectures.
+RISC-V uses UEFI boot like aarch64, so no special bootloader partition
+is needed.
+
+Changes:
+- discoverable_partition_specification: add riscv64 to this_arch_root()
+- install: add riscv64 to ARCH_USES_EFI
+- install/baseline: add riscv64 to partitioning arch checks
+
+Signed-off-by: Andrew Lukoshko <alukoshko@almalinux.org>
+---
+ crates/lib/src/discoverable_partition_specification.rs | 2 ++
+ crates/lib/src/install.rs                             | 2 +-
+ crates/lib/src/install/baseline.rs                    | 2 +-
+ 3 files changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/crates/lib/src/discoverable_partition_specification.rs b/crates/lib/src/discoverable_partition_specification.rs
+index 1111111..2222222 100644
+--- a/crates/lib/src/discoverable_partition_specification.rs
++++ b/crates/lib/src/discoverable_partition_specification.rs
+@@ -454,6 +454,8 @@ pub const fn this_arch_root() -> &'static str {
+          ROOT_PPC64
+      } else if #[cfg(all(target_arch = "powerpc64", target_endian = "little"))] {
+          ROOT_PPC64_LE
++     } else if #[cfg(target_arch = "riscv64")] {
++         ROOT_RISCV64
+      } else {
+          compile_error!("Unsupported architecture")
+      }
+diff --git a/crates/lib/src/install.rs b/crates/lib/src/install.rs
+index 1111111..2222222 100644
+--- a/crates/lib/src/install.rs
++++ b/crates/lib/src/install.rs
+@@ -68,7 +68,7 @@ pub(crate) const EFIVARFS: &str = "/sys/firmware/efi/efivars";
+-pub(crate) const ARCH_USES_EFI: bool = cfg!(any(target_arch = "x86_64", target_arch = "aarch64"));
++pub(crate) const ARCH_USES_EFI: bool = cfg!(any(target_arch = "x86_64", target_arch = "aarch64", target_arch = "riscv64"));
+ 
+ pub(crate) const EFI_LOADER_INFO: &str = "LoaderInfo-4a67b082-0a4c-41cf-b6c7-440b29bb8c4f";
+diff --git a/crates/lib/src/install/baseline.rs b/crates/lib/src/install/baseline.rs
+index 1111111..2222222 100644
+--- a/crates/lib/src/install/baseline.rs
++++ b/crates/lib/src/install/baseline.rs
+@@ -168,7 +168,7 @@ pub(crate) fn install_create_rootfs(
+          r#"size=4MiB, bootable, type={uuid}, name="{label}""#
+      )?;
+-     } else if cfg!(any(target_arch = "aarch64", target_arch = "s390x")) {
++     } else if cfg!(any(target_arch = "aarch64", target_arch = "s390x", target_arch = "riscv64")) {
+          // No bootloader partition is necessary
+      } else {
+          anyhow::bail!("Unsupported architecture: {}", std::env::consts::ARCH);
+-- 
+2.43.0