win7下安装ubuntu,引导时错选择成了ubuntu引导win7,结果开机默认进入的是ubuntu系统,怎么办?
而且引导项有六七个,看起来很乱,怎么设置才能第一个选择进入的是win7,第二个是ubuntu,求解决办法?...
而且引导项有六七个,看起来很乱,怎么设置才能第一个选择进入的是win7,第二个是ubuntu,求解决办法?
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3个回答
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1.打开终端,输入sudo gedit /boot/grub/grub.cfg,回车;按照提示输入密码并回车 ,把这个文件变成可写。
2.输入sudo gedit /boot/grub/grub.cfg,回车
3.在grub.cfg中找到类似以下代码:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda1)"
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 842c8e1c2c8e08fe
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
上面的是WIN7
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
insmod ntfs
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 7870b1b270b17788
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
上面的是XP
总之类似,就是找到这行
将你的grub.cfg文件里的类似代码剪切,然后粘贴到grub.cfg文件里 ### END /etc/grub.d/05_debian_theme ### 代码之后
4.保存并退出,重启后你的系统启动顺序就变成了默认Windows 为第一启动项
另外, "Windows 7 (loader) (on /dev/sda1)"、"Ubuntu, Linux 2.6.31-14-generic" 等引号里的内容可以随意修改为你喜欢的名字,如windows、linux等;且不想要的启动项可以删除,如 "Memory test (memtest86+)"
本人才疏学浅,只是想到了默认启动顺序是第一个,所以就把排 序改变了一下,其他的方式可能还可以更改默认的启动项目来达到目的。
最后还是建议你在安装UBUNTU的时候把它的引导文件安装在D盘,然后在WIN下面用EasyBCD2添加UBUNTU的启动引导项,这样的好处是,无论以后C盘或MBR出现什么问题也不会影响到UBUNTU系统。
2.输入sudo gedit /boot/grub/grub.cfg,回车
3.在grub.cfg中找到类似以下代码:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sda1)"
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 842c8e1c2c8e08fe
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
上面的是WIN7
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professional (on /dev/sda1)" {
insmod ntfs
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 7870b1b270b17788
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
上面的是XP
总之类似,就是找到这行
将你的grub.cfg文件里的类似代码剪切,然后粘贴到grub.cfg文件里 ### END /etc/grub.d/05_debian_theme ### 代码之后
4.保存并退出,重启后你的系统启动顺序就变成了默认Windows 为第一启动项
另外, "Windows 7 (loader) (on /dev/sda1)"、"Ubuntu, Linux 2.6.31-14-generic" 等引号里的内容可以随意修改为你喜欢的名字,如windows、linux等;且不想要的启动项可以删除,如 "Memory test (memtest86+)"
本人才疏学浅,只是想到了默认启动顺序是第一个,所以就把排 序改变了一下,其他的方式可能还可以更改默认的启动项目来达到目的。
最后还是建议你在安装UBUNTU的时候把它的引导文件安装在D盘,然后在WIN下面用EasyBCD2添加UBUNTU的启动引导项,这样的好处是,无论以后C盘或MBR出现什么问题也不会影响到UBUNTU系统。
追问
这么难
展开全部
设置WIN7为第一启动项。
在应用程序-附件-打开终端 ,运行sudo chmod +w
/boot/grub/grub.cfg然后再运行sudo gedit
/boot/grub/grub.cfg
修改顺序要 从"BEGIN"到 "END"整段移动 !
set timeout=10
------------------------------启动列表停留时间将win7的启动 begin到end 放到最前面即可
grub.cfg:引用:#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using
templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,9)
search --no-floppy --fs-uuid --set
0eebad35-8d15-4039-b626-3d2f97155eb7
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that
don't
# understand terminal_output
terminal gfxterm
fi
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/30_os-prober ### ---------------------第一启动项
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set da0a75920a756bff
chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sda2)" {
insmod ntfs
set root=(hd0,2)
search --no-floppy --fs-uuid --set c2a2781aa27814df
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/10_linux ### ---------------------第二启动项
menuentry "Ubuntu, Linux 2.6.31-19-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-19-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro quiet
splash
initrd /initrd.img-2.6.31-19-generic
}
menuentry "Ubuntu, Linux 2.6.31-19-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-19-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro single
initrd /initrd.img-2.6.31-19-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-14-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro quiet
splash
initrd /initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-14-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro single
initrd /initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ### ---------------------第三启动项
menuentry "Memory test (memtest86+)" {
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
linux16 /memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/40_custom ### ---------------------这 些就不管了
# This file provides an easy way to add custom menu entries. Simply
type the
# menu entries you want to add after this comment. Be careful not
to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
在应用程序-附件-打开终端 ,运行sudo chmod +w
/boot/grub/grub.cfg然后再运行sudo gedit
/boot/grub/grub.cfg
修改顺序要 从"BEGIN"到 "END"整段移动 !
set timeout=10
------------------------------启动列表停留时间将win7的启动 begin到end 放到最前面即可
grub.cfg:引用:#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using
templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,9)
search --no-floppy --fs-uuid --set
0eebad35-8d15-4039-b626-3d2f97155eb7
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that
don't
# understand terminal_output
terminal gfxterm
fi
fi
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###
### BEGIN /etc/grub.d/30_os-prober ### ---------------------第一启动项
menuentry "Windows 7 (loader) (on /dev/sda1)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set da0a75920a756bff
chainloader +1
}
menuentry "Windows 7 (loader) (on /dev/sda2)" {
insmod ntfs
set root=(hd0,2)
search --no-floppy --fs-uuid --set c2a2781aa27814df
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/10_linux ### ---------------------第二启动项
menuentry "Ubuntu, Linux 2.6.31-19-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-19-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro quiet
splash
initrd /initrd.img-2.6.31-19-generic
}
menuentry "Ubuntu, Linux 2.6.31-19-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-19-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro single
initrd /initrd.img-2.6.31-19-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
set quiet=1
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-14-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro quiet
splash
initrd /initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
recordfail=1
if [ -n ${have_grubenv} ]; then save_env recordfail; fi
insmod ext2
set root=(hd0,8)
search --no-floppy --fs-uuid --set
8e284259-3315-4f78-8714-8e29b552cd3f
linux /vmlinuz-2.6.31-14-generic
root=UUID=0eebad35-8d15-4039-b626-3d2f97155eb7 ro single
initrd /initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ### ---------------------第三启动项
menuentry "Memory test (memtest86+)" {
linux16 /memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
linux16 /memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/40_custom ### ---------------------这 些就不管了
# This file provides an easy way to add custom menu entries. Simply
type the
# menu entries you want to add after this comment. Be careful not
to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
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下个EasyBCD软件修改一下就可以了。
安装好EasyBCD后,运行软件,点击"Edit Boot Menu",然后选择你要默认启动的系统就可以了。
安装好EasyBCD后,运行软件,点击"Edit Boot Menu",然后选择你要默认启动的系统就可以了。
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