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kexec-tools: add kdump scripts util 

This add back kdump scripts to save crashlog or vmcore to disk

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
This commit is contained in:
Chen Minqiang 2022-04-30 23:28:29 +08:00 committed by Christian Lamparter
parent 36483600d3
commit e0d8f7ef1f
1 changed files with 34 additions and 0 deletions
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34
package/boot/kexec-tools/Makefile
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@ -49,6 +49,17 @@ define Package/kexec/description
The kexec utility allows to load and boot another kernel.
endef
define Package/kdump
$(call Package/kexec-tools/Default)
TITLE:=Kernel crash analysis
DEPENDS:=+kexec @(i386||x86_64||arm) @KERNEL_CRASH_DUMP
endef
define Package/kdump/description
The kdump package allows to automatically boot into a
special kernel for analyzing kernel crashes using kdump.
endef
define Package/kexec/config
source "$(SOURCE)/Config.in"
endef
@ -95,5 +106,28 @@ define Package/kexec/install
$(LN) ../usr/sbin/kexec $(1)/sbin/kexec
endef
define Package/kdump/install
$(INSTALL_DIR) $(1)/usr/sbin $(1)/etc/init.d $(1)/etc/config $(1)/etc/uci-defaults
$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/vmcore-dmesg $(1)/usr/sbin
$(INSTALL_BIN) ./files/kdump.init $(1)/etc/init.d/kdump
$(INSTALL_BIN) ./files/kdump.defaults $(1)/etc/uci-defaults/kdump
$(INSTALL_CONF) ./files/kdump.config $(1)/etc/config/kdump
endef
define Package/kdump/prerm
#!/bin/sh
case $$(uname -m) in
i?86|x86_64)
if grep -q " crashkernel=" /boot/grub/grub.cfg; then
mount /boot -o remount,rw
sed -i 's/ crashkernel=[^ ]*//' /boot/grub/grub.cfg
mount /boot -o remount,ro
fi
;;
esac
endef
$(eval $(call BuildPackage,kexec-tools))
$(eval $(call BuildPackage,kexec))
$(eval $(call BuildPackage,kdump))