团队，我需要降级我的内核，但我卡在这一步。有什么提示吗？请观察我的系统详细信息以及我做了什么以及卡在了哪里sudo: upgrade-grub: command not found
我希望有Ubuntu, with Linux 5.13.0-52-generic
user@user-DT:~$ cat /usr/sbin/update-grub
#!/bin/sh
set -e
exec grub-mkconfig -o /boot/grub/grub.cfg "$@"
user@user-DT:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.5 LTS
Release: 20.04
Codename: focal
user@user-DT:~$ uname -a
Linux user-DT 5.15.0-72-generic #79~20.04.1-Ubuntu SMP Thu Apr 20 22:12:07 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
user@user-DT:~$ sudo grep 'menuentry \|submenu ' /boot/grub/grub.cfg | cut -f2 -d "'"
Ubuntu
Advanced options for Ubuntu
Ubuntu, with Linux 5.15.0-72-generic
Ubuntu, with Linux 5.15.0-72-generic (recovery mode)
Ubuntu, with Linux 5.15.0-46-generic
Ubuntu, with Linux 5.15.0-46-generic (recovery mode)
Ubuntu, with Linux 5.13.0-52-generic
Ubuntu, with Linux 5.13.0-52-generic (recovery mode)
UEFI Firmware Settings
user@user-DT:~$ cat /etc/default/grub | grep DEFA
GRUB_DEFAULT='Advanced options for Ubuntu>Ubuntu, with Linux 5.13.0-52-generic'
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
user@user-DT:~$ sudo upgrade-grub
sudo: upgrade-grub: command not found