我使用官方源代码(通过git)构建我的内核,而不是使用我的debian提供的供应商tarball.构建完成后,我安装了内核和模块：

$sudo make modules_install install

这在grub中安装了一个新的菜单项,如果你在启动时手动选择它,它确实有效.这很好.

现在,要默认启动它,我必须编辑/ etc / default / grub并更改GRUB_DEFAULT.在文件的顶部是一个注释,指向用户信息页面,其中说：

'GRUB_DEFAULT'
     The default menu entry.  This may be a number,in which case it
     identifies the Nth entry in the generated menu counted from zero,or the title of a menu entry,or the special string 'saved'.  Using
     the id may be useful if you want to set a menu entry as the default
     even though there may be a variable number of entries before it.

     For example,if you have:

     menuentry 'Example GNU/Linux distribution' --class gnu-linux --id example-gnu-linux {
        ...
     }

     then you can make this the default using:

          GRUB_DEFAULT=example-gnu-linux

     PrevIoUsly it was documented the way to use entry title.  While
     this still works it's not recommended since titles often contain
     unstable device names and may be translated

     If you set this to 'saved',then the default menu entry will be
     that saved by 'GRUB_SAVEDEFAULT' or 'grub-set-default'.  This
     relies on the environment block,which may not be available in all
     situations (*note Environment block::).

     The default is '0'.

首先,从散文中不清楚“id”是否与“title”相同.除此之外,看起来我应该在生成的grub配置中的–id之后使用字符串.

因此,make install将以下内容插入/boot/grub/grub.cfg：

menuentry 'Debian GNU/Linux,with Linux 3.16.36krunsystickless+' --class debian --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.16.36krunsystickless+-advanced-197f20c1-1808-41b5-831f-b85a40358757' {
        load_video                                                              
        insmod gzio                                                             
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi      
        insmod part_msdos                                                       
        insmod ext2                                                             
        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  197f20c1-1808-41b5
-831f-b85a40358757
        else                                                                    
          search --no-floppy --fs-uuid --set=root 197f20c1-1808-41b5-831f-b85a40358757
        fi                                                                      
        echo    'Loading Linux 3.16.36krunsystickless+ ...'                     
        linux   /boot/vmlinuz-3.16.36krunsystickless+ root=UUID=197f20c1-1808-41b5-831f-b85a40358757 ro  quiet console=ttyS0,115200n8 intel_psta
te=disable
        echo    'Loading initial ramdisk ...'                                   
        initrd  /boot/initrd.img-3.16.36krunsystickless+                        
    }

在设置文件$menuentry_id_option的前面的位置：

if [ x"${feature_menuentry_id}" = xy ]; then                                    
  menuentry_id_option="--id"                                                    
else                                                                            
  menuentry_id_option=""                                                        
fi

所以假设我应该将/ etc / grub / default中的GRUB_DEFAULT设置为：

gnulinux-3.16.36krunsystickless+-advanced-197f20c1-1808-41b5-831f-b85a40358757

然后运行：

$sudo update-grub
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.16.36softdevnohzfullall
Found initrd image: /boot/initrd.img-3.16.36softdevnohzfullall
Found linux image: /boot/vmlinuz-3.16.36krunsystickless+
Found initrd image: /boot/initrd.img-3.16.36krunsystickless+
Found linux image: /boot/vmlinuz-3.16.36krunsystickless+.old
Found initrd image: /boot/initrd.img-3.16.36krunsystickless+
Found linux image: /boot/vmlinuz-3.16.0-4-amd64
Found initrd image: /boot/initrd.img-3.16.0-4-amd64
done

在最终重启之前.

但这似乎不起作用.而是引导与之前相同的内核.有谁知道为什么？

我尝试过的其他事情：

>数字索引GRUB_DEFAULTS – 似乎没有任何效果.
>转义内核ID中的加号.
> grub-set-default

我现在要调查feature_menuentry_id,但我觉得这将是一个红鲱鱼.如果有人能在此期间让我摆脱苦难,我将非常感激.

谢谢