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我不小心从/ Boot 删除了我的ubuntu内核。我安装了一些其他的Linux内核。想恢复我的ubuntu内核。
我已经安装了通用内核。

pegasus@pegasus:~$ sudo apt-get install --reinstall linux-image-generic
[sudo] password for pegasus: 
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages were automatically installed and are no longer required:
  gdal-plugins inxi libarmadillo11 libavcodec-dev libavformat-dev libavutil-dev libboost-filesystem1.71.0 libboost-iostreams1.71.0 libboost-program-options1.71.0 libcfitsio10 libdc1394-dev
  libexif-dev libexif-doc libfdk-aac2 libgdal32 libgoogle-perftools4 libgphoto2-dev libmbedtls14 libmbedx509-1 libopencv-highgui406 libopencv-imgcodecs406 libpcrecpp0v5 libqt6qml6
  libqt6qmlmodels6 libqt6quick6 libqt6svg6 libqt6waylandclient6 libqt6waylandcompositor6 libqt6waylandeglclienthwintegration6 libqt6waylandeglcompositorhwintegration6
  libqt6wlshellintegration6 libraw1394-dev libraw1394-tools libsrt1.5-openssl libssl1.1 libswresample-dev libtcmalloc-minimal4 libxapp-gtk3-module libxapp1 libyaml-cpp0.6 qt6-wayland
  xapp-sn-watcher xapps-common
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 110 not upgraded.
Need to get 8,224 B of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://bd.archive.ubuntu.com/ubuntu lunar-updates/main amd64 linux-image-generic amd64 6.2.0.26.26 [8,224 B]
Fetched 8,224 B in 1s (15.1 kB/s)               
(Reading database ... 289865 files and directories currently installed.)
Preparing to unpack .../linux-image-generic_6.2.0.26.26_amd64.deb ...
Unpacking linux-image-generic (6.2.0.26.26) over (6.2.0.26.26) ...
Setting up linux-image-generic (6.2.0.26.26) ...

字符串
但吃东西的时候却没有。如何恢复？

pegasus@pegasus:~$ sudo update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-6.5.0-rc3+
Found initrd image: /boot/initrd.img-6.5.0-rc3+
Found linux image: /boot/vmlinuz-6.4.7+
Found initrd image: /boot/initrd.img-6.4.7+
Found linux image: /boot/vmlinuz-6.4.0-rc5
Found initrd image: /boot/initrd.img-6.4.0-rc5
Found linux image: /boot/vmlinuz-6.4.0-rc4+
Found initrd image: /boot/initrd.img-6.4.0-rc4+
Found memtest86+ 64bit EFI image: /boot/memtest86+x64.efi
Warning: os-prober will be executed to detect other bootable partitions.
Its output will be used to detect bootable binaries on them and create new boot entries.
Found Windows Boot Manager on /dev/nvme1n1p1@/EFI/Microsoft/Boot/bootmgfw.efi
Adding boot menu entry for UEFI Firmware Settings ...
done

pegasus@pegasus:~$ dpkg --list | grep linux-image
ii  linux-image-5.19.0-1007-nvidia-lowlatency      5.19.0-1007.7                              amd64        Signed kernel image nvidia-lowlatency
rc  linux-image-5.19.0-41-generic                  5.19.0-41.42~22.04.1                       amd64        Signed kernel image generic
rc  linux-image-5.19.0-42-generic                  5.19.0-42.43~22.04.1                       amd64        Signed kernel image generic
rc  linux-image-6.2.0-20-generic                   6.2.0-20.20                                amd64        Signed kernel image generic
rc  linux-image-6.2.0-23-generic                   6.2.0-23.23                                amd64        Signed kernel image generic
rc  linux-image-6.2.0-24-generic                   6.2.0-24.24                                amd64        Signed kernel image generic
pi  linux-image-6.2.0-26-generic                   6.2.0-26.26                                amd64        Signed kernel image generic
ii  linux-image-generic                            6.2.0.26.26                                amd64        Generic Linux kernel image
pi  linux-image-generic-hwe-22.04                  6.2.0.26.26                                amd64        Generic Linux kernel image

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