[Buildroot] [PATCH 5/5] package/petitboot: enable discovery of SCSI devices

[Reza Arbab <arbab@linux.ibm.com>]

It's likely that the "sg" kernel driver needed to scan SCSI devices is a
module. Install a udev rule to load it automatically when devices are
present.

Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
---
 package/petitboot/66-add-sg-module.rules | 2 ++
 package/petitboot/petitboot.mk           | 2 ++
 2 files changed, 4 insertions(+)
 create mode 100644 package/petitboot/66-add-sg-module.rules

diff --git a/package/petitboot/66-add-sg-module.rules b/package/petitboot/66-add-sg-module.rules
new file mode 100644
index 000000000000..ae18d28c570e
--- /dev/null
+++ b/package/petitboot/66-add-sg-module.rules
@@ -0,0 +1,2 @@
+# load modules to scsi disks, if they aren't in kernel
+SUBSYSTEM=="scsi", ENV{DEVTYPE}=="scsi_device", TEST!="[module/sg]", RUN+="/sbin/modprobe sg"
diff --git a/package/petitboot/petitboot.mk b/package/petitboot/petitboot.mk
index 596e801b781c..590b58e9c71a 100644
--- a/package/petitboot/petitboot.mk
+++ b/package/petitboot/petitboot.mk
@@ -63,6 +63,8 @@ define PETITBOOT_POST_INSTALL
 		$(TARGET_DIR)/etc/petitboot/boot.d/01-create-default-dtb
 	$(INSTALL) -D -m 0755 $(@D)/utils/hooks/90-sort-dtb \
 		$(TARGET_DIR)/etc/petitboot/boot.d/90-sort-dtb
+	$(INSTALL) -D -m 0755 $(PETITBOOT_PKGDIR)/66-add-sg-module.rules \
+		$(TARGET_DIR)/etc/udev/rules.d/66-add-sg-module.rules
 	$(INSTALL) -m 0755 -D $(PETITBOOT_PKGDIR)/S15pb-discover \
 		$(TARGET_DIR)/etc/init.d/S15pb-discover
 	$(INSTALL) -D -m 0755 $(PETITBOOT_PKGDIR)/petitboot-console-ui.rules \
-- 
2.39.3

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