Differences

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--- systems:grub2 [2018/01/08 16:11]
eServices Greece created
+++ systems:grub2 [2018/03/05 05:28] (current)
eServices Greece
@@ Line 1: / Line 1: @@
+{{tag>centos grub}}
 ====== Reinstall grub2 ======
 ===== On Software RAID =====
@@ Line 11: / Line 12: @@
 </sxh>
-==== Install grub2 ====
+=== Install grub2 ===
 <sxh bash>
 grub2-install /dev/sda
+</sxh>
+=== Check if Grub was written in MBR ===
+<sxh bash>
+dd bs=512 count=1 if=/dev/sda 2>/dev/null | strings|grep GRUB
+</sxh>
+=== Check Grub 2 for the kernel line ===
+<sxh bash>
+egrep ^menuentry /etc/grub2.cfg | cut -f 2 -d \'
+</sxh>
+=== Set new kernel as default boot entry ===
+<sxh bash>
+grub2-set-default 1
+</sxh>
+=== Check current boot entry ===
+<sxh bash>
+grub2-editenv list
 </sxh>