如何绕过或停止 grub2/os-prober 的超长运行时间？

Question

每当我升级 Ubuntu 16.04 并且有内核升级时，更新过程在运行 (os-prober) 时需要很长时间，并且还会多次生成 grub 配置。

出于某种莫名其妙的原因，它运行了不止一次......

Setting up openssh-client (1:7.2p2-4ubuntu1) ...
Setting up linux-image-4.4.0-22-generic (4.4.0-22.39) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.4.0-22-generic
Found initrd image: /boot/initrd.img-4.4.0-22-generic
Found linux image: /boot/vmlinuz-4.4.0-21-generic
Found initrd image: /boot/initrd.img-4.4.0-21-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
grub-probe: error: cannot find a GRUB drive for /dev/sdf1.  Check your device.map.
Found Windows 10 (loader) on /dev/sda1
Found Arch on /dev/sdb2
Found Ubuntu 14.04.4 LTS (14.04) on /dev/sdd2
done
Setting up linux-image-extra-4.4.0-22-generic (4.4.0-22.39) ...
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/pm-utils 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.4.0-22-generic /boot/vmlinuz-4.4.0-22-generic
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.4.0-22-generic
Found initrd image: /boot/initrd.img-4.4.0-22-generic
Found linux image: /boot/vmlinuz-4.4.0-21-generic
Found initrd image: /boot/initrd.img-4.4.0-21-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin

注意：/dev/sdf 是 U 盘

无论如何要停止这种行为或完全绕过运行 grub2，因为它实际上并没有被使用或需要？

Answer 1

os-prober 用于查找您可能已安装在驱动器上的其他操作系统，并在启动期间将它们添加到您的 grub 菜单中。

如果您想禁用 os-prober，您可以编辑/etc/default/grub（具有 root 权限）并添加以下行：

GRUB_DISABLE_OS_PROBER=true