[PATCH 1/1] meta: derive ROOTFS_DISTRO correctly in sbom-chroot's do_prepare_rootfs

["srinuvasan.a via isar-users" <isar-users@googlegroups.com>]

From: srinuvasan <srinuvasan.a@siemens.com>

In downstream layers, the ROOTFS_DISTRO may differ from "debian".
During `rootfs_prepare` of `sbom-chroot`, this causes failures such as:

  | DEBUG: Executing shell function rootfs_prepare
  | tar: .../debian-bookworm-amd64.tar.zst: Cannot open: No such file or directory
  | tar: Error is not recoverable: exiting now
  | WARNING: exit code 2 from a shell command.

The actual bootstrap archive generated was:
  industrial-bookworm-amd64.tar.zst

Fix this by deriving ROOTFS_DISTRO from the current DISTRO, ensuring the
bootstrap tarball is unpacked and configured correctly.

As part of this change, remove `ROOTFS_DISTRO`, `ROOTFS_ARCH`, and
`ROOTFS_BASE_DISTRO` from the `sbom-chroot` recipe.

This modification brings it in line with the sbuild-chroot-target recipe.

Note: The sbom class is already inherited via rootfs, so it can be removed from the sbom-chroot recipe.

Signed-off-by: srinuvasan <srinuvasan.a@siemens.com>
---
 meta/recipes-devtools/sbom-chroot/sbom-chroot.bb | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/meta/recipes-devtools/sbom-chroot/sbom-chroot.bb b/meta/recipes-devtools/sbom-chroot/sbom-chroot.bb
index 6f27f842..7f5ebc5b 100644
--- a/meta/recipes-devtools/sbom-chroot/sbom-chroot.bb
+++ b/meta/recipes-devtools/sbom-chroot/sbom-chroot.bb
@@ -8,11 +8,6 @@ LIC_FILES_CHKSUM = "file://${LAYERDIR_core}/licenses/COPYING.GPLv2;md5=751419260
 PV = "1.0"
 
 inherit rootfs
-inherit sbom
-
-ROOTFS_ARCH = "${HOST_ARCH}"
-ROOTFS_DISTRO = "${HOST_DISTRO}"
-ROOTFS_BASE_DISTRO = "${HOST_BASE_DISTRO}"
 
 ROOTFS_FEATURES = "no-generate-initrd"
 
-- 
2.39.5

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