最近，我通过从实时 复制来恢复意外删除的/share文件夹，并以某种方式设法启动了计算机。从那时起，计算机运行正常，但出现以下问题：Ubuntu-21.04Ubuntu-21.04
第1部分
我的计算机 ( Ubuntu-21.04) 只能以内核启动5.11.0-25，有三个内核5.11.0-37，5.11.0-34和5.11.0-25。
启动卡在内核（*37*, *34*），出现错误：
end kernel panic -not sync: vfs : unable to mount root fs on unknown block [0 0]
第2部分
如果我启动内核5.11.0-25，那么问题是我无法安装任何软件包，或升级 ubunutu。任何安装或升级都会出现以下错误。
输出sudo apt update
Hit:1 http://in.archive.ubuntu.com/ubuntu hirsute InRelease
Hit:2 http://in.archive.ubuntu.com/ubuntu hirsute-updates InRelease
Hit:3 http://in.archive.ubuntu.com/ubuntu hirsute-backports InRelease
Hit:4 http://archive.ubuntu.com/ubuntu groovy InRelease
Get:5 http://security.ubuntu.com/ubuntu hirsute-security InRelease [110 kB]
Fetched 110 kB in 1s (146 kB/s)
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
输出sudo apt upgrade：
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up initramfs-tools (0.139ubuntu3) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-image-5.11.0-37-generic (5.11.0-37.41) ...
Processing triggers for initramfs-tools (0.139ubuntu3) ...
update-initramfs: Generating /boot/initrd.img-5.11.0-25-generic
Error: /sbin/zdb is not executable.
Error: /sbin/zpool is not executable.
Error: /sbin/zfs is not executable.
Error: /sbin/mount.zfs is not executable.
Error: /lib/udev/vdev_id is not executable.
Error: /lib/udev/zvol_id is not executable.
E: /usr/share/initramfs-tools/hooks/zfs failed with return 2.
update-initramfs: failed for /boot/initrd.img-5.11.0-25-generic with 2.
dpkg: error processing package initramfs-tools (--configure):
installed initramfs-tools package post-installation script subprocess returned error exit status 2
Processing triggers for linux-image-5.11.0-37-generic (5.11.0-37.41) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.11.0-37-generic
Error: /sbin/zdb is not executable.
Error: /sbin/zpool is not executable.
Error: /sbin/zfs is not executable.
Error: /sbin/mount.zfs is not executable.
Error: /lib/udev/vdev_id is not executable.
Error: /lib/udev/zvol_id is not executable.
E: /usr/share/initramfs-tools/hooks/zfs failed with return 2.
update-initramfs: failed for /boot/initrd.img-5.11.0-37-generic with 2.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2
dpkg: error processing package linux-image-5.11.0-37-generic (--configure):
installed linux-image-5.11.0-37-generic package post-installation script subprocess returned error exit
status 1
Errors were encountered while processing:
initramfs-tools
linux-image-5.11.0-37-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
文件系统
/dev/sdb2 ext4 19G 16G 1.6G 92% /
/dev/sdb1 vfat 380M 6.9M 373M 2% /boot/efi