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==[[CentOs7 Grub2]]==
[[CentOS]] | [[Linux]] |
====起動OSの確認====
# grep "^menuentry" /boot/grub2/grub.cfg | cut -d "'" -f2
[[CentOS ]] Linux (3.10.0-229.20.1.el7.x86_64) 7 (Core) [[CentOS ]] Linux (3.10.0-229.20.1.el7.x86_64) 7 (Core) with debugging [[CentOS ]] Linux (3.10.0-229.11.1.el7.x86_64) 7 (Core) [[CentOS ]] Linux (3.10.0-229.11.1.el7.x86_64) 7 (Core) with debugging [[CentOS ]] Linux 7 (Core), with Linux 3.10.0-229.el7.x86_64 [[CentOS ]] Linux 7 (Core), with Linux 0-rescue-4b00eec6f028470db654c2536ac2fc83 menuentry "[[Windows ]] 10"{
====現在のデフォルト起動====
# grub2-editenv list
saved_entry=[[CentOS ]] Linux (3.10.0-229.20.1.el7.x86_64) 7 (Core)
====変更====
# grub2-set-default 6
# head -2 /boot/grub2/grubenv
# GRUB Environment En[[vi]]ronment Block
saved_entry=6
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