刪除開(kāi)機(jī)動(dòng)畫(huà)

編輯vi /etc/default/grub 文件，找到 GRUB_CMDLINE_LINUX 一行，將“rhgb quiet” 改為 “quiet” (去掉rhgb)

修改前:

GRUB_TIMEOUT=5

GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap rhgb quiet"

GRUB_DISABLE_RECOVERY="true"

修改后:

GRUB_TIMEOUT=5

GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"

GRUB_DEFAULT=saved

GRUB_DISABLE_SUBMENU=true

GRUB_TERMINAL_OUTPUT="console"

GRUB_CMDLINE_LINUX="crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap quiet"

GRUB_DISABLE_RECOVERY="true"

最后執(zhí)行命令:

grub2-mkconfig --output=/boot/grub2/grub.cfg

重啟就可以看到效果了

修改啟動(dòng)等待時(shí)間

編輯vi /boot/grub2/grub.cfg 文件，修改timeout屬性，如開(kāi)機(jī)等待5秒修改為2秒

修改前:

terminal_output console

if [ x$feature_timeout_style = xy ] ; then

set timeout_style=menu

set timeout=5

# Fallback normal timeout code in case the timeout_style feature is

# unavailable.

else

set timeout=5

fi

修改后:

terminal_output console

if [ x$feature_timeout_style = xy ] ; then

set timeout_style=menu

set timeout=2

# Fallback normal timeout code in case the timeout_style feature is

# unavailable.

else

set timeout=2

fi

注意: 這個(gè)文件是由模板/etc/grub.d和配置文件/etc/default/grub通過(guò)命令grub2-mkconfig生成的

刪除多余開(kāi)機(jī)菜單

編輯vi /boot/grub2/grub.cfg 文件，刪除menuentry開(kāi)頭的段落，menuentry后面的就是菜單名

修改前:

### BEGIN /etc/grub.d/10_linux ###

menuentry 'CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-957.27.2.el7.x86_64-advanced-4e334e31-4461-4c13-9c08-93af5da320ea' {

load_video

set gfxpayload=keep

insmod gzio

insmod part_msdos

insmod xfs

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 9cffe801-9abf-4403-805e-e92b604005d2

else

search --no-floppy --fs-uuid --set=root 9cffe801-9abf-4403-805e-e92b604005d2

fi

linux16 /vmlinuz-3.10.0-957.27.2.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap quiet

initrd16 /initramfs-3.10.0-957.27.2.el7.x86_64.img

}

menuentry 'CentOS Linux (3.10.0-957.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-957.el7.x86_64-advanced-4e334e31-4461-4c13-9c08-93af5da320ea' {

load_video

set gfxpayload=keep

insmod gzio

insmod part_msdos

insmod xfs

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 9cffe801-9abf-4403-805e-e92b604005d2

else

search --no-floppy --fs-uuid --set=root 9cffe801-9abf-4403-805e-e92b604005d2

fi

linux16 /vmlinuz-3.10.0-957.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap quiet

initrd16 /initramfs-3.10.0-957.el7.x86_64.img

}

if [ "x$default" = 'CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)' ]; then default='Advanced options for CentOS Linux>CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)'; fi;

修改后:

### BEGIN /etc/grub.d/10_linux ###

menuentry 'CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)' --class centos --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-957.27.2.el7.x86_64-advanced-4e334e31-4461-4c13-9c08-93af5da320ea' {

load_video

set gfxpayload=keep

insmod gzio

insmod part_msdos

insmod xfs

set root='hd0,msdos1'

if [ x$feature_platform_search_hint = xy ]; then

search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' 9cffe801-9abf-4403-805e-e92b604005d2

else

search --no-floppy --fs-uuid --set=root 9cffe801-9abf-4403-805e-e92b604005d2

fi

linux16 /vmlinuz-3.10.0-957.27.2.el7.x86_64 root=/dev/mapper/centos-root ro crashkernel=auto rd.lvm.lv=centos/root rd.lvm.lv=centos/swap quiet

initrd16 /initramfs-3.10.0-957.27.2.el7.x86_64.img

}

if [ "x$default" = 'CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)' ]; then default='Advanced options for CentOS Linux>CentOS Linux (3.10.0-957.27.2.el7.x86_64) 7 (Core)'; fi;

總結(jié)

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