为什么我会得到“警告: os-prober不会被执行来检测其他可引导的分区”。在运行"apt升级“之后？
为什么我会得到“警告: os-prober不会被执行来检测其他可引导的分区”。在运行"apt升级“之后？
提问于 2022-06-16 00:45:26
我在运行Ubuntu22.04，一切都很好。今天我做了sudo apt update && sudo apt upgrade，最后收到了以下警告：
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.15.0-39-generic
Found initrd image: /boot/initrd.img-5.15.0-39-generic
Found linux image: /boot/vmlinuz-5.15.0-37-generic
Found initrd image: /boot/initrd.img-5.15.0-37-generic
Memtest86+ needs a 16-bit boot, that is not available on EFI, exiting
Warning: os-prober will not be executed to detect other bootable partitions.
Systems on them will not be added to the GRUB boot configuration.
Check GRUB_DISABLE_OS_PROBER documentation entry.
Adding boot menu entry for UEFI Firmware Settings ...
done据我所见，当多个操作系统安装在同一台计算机上时，就会使用os-prober，那么为什么要打开这个警告呢？我只安装了Ubuntu 22.04。是因为发现了两个内核吗？
Memtest86+已经在评论中解决了，但是os-prober呢？
以下是/etc/default/grub的内容：
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"回答 1
Ask Ubuntu用户
发布于 2022-06-16 14:10:40
该警告由/etc/grub.d/30_os-prober生成，请查看第43至59行：
if [ "x${GRUB_DISABLE_OS_PROBER}" = "xtrue" ]; then
grub_warn "$(gettext_printf "os-prober will not be executed to detect other bootable partitions.\nSystems on them will not be added to the GRUB boot configuration.\nCheck GRUB_DISABLE_OS_PROBER documentation entry.")"
exit 0
elif [ "x${GRUB_DISABLE_OS_PROBER}" = "xauto" ]; then
# UBUNTU: We do not want to disable os-prober on upgrades if we found items before.
if test -e /boot/grub/grub.cfg && ! grep -q osprober /boot/grub/grub.cfg; then
grub_warn "$(gettext_printf "os-prober will not be executed to detect other bootable partitions.\nSystems on them will not be added to the GRUB boot configuration.\nCheck GRUB_DISABLE_OS_PROBER documentation entry.")"
exit 0
fi
fi
if ! command -v os-prober > /dev/null || ! command -v linux-boot-prober > /dev/null ; then
# missing os-prober and/or linux-boot-prober
exit 0
fi
grub_warn "$(gettext_printf "os-prober will be executed to detect other bootable partitions.\nIts output will be used to detect bootable binaries on them and create new boot entries.")"你有几种选择：
- 忽略警告，这只是一个警告，而不是一个错误。
- 在
GRUB_DISABLE_OS_PROBER=false中设置变量/etc/default/grub。警告将更改为os-prober will be executed to detect...，正如我们在脚本的片段中看到的那样。 - 从
/etc/grub.d/30_os-prober中删除可执行位。这将阻止脚本的执行，因此您无法获得任何警告。您可以这样做: sudo chmod -x /etc/grub.d/30_os-prober - 编辑脚本
/etc/grub.d/30_os-prober。如果用grub_warn注释掉行，脚本将在不发出警告的情况下运行。
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原文链接：
https://askubuntu.com/questions/1414245
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