Ubuntu 22.04.5升级至HWE内核6.8.0-47-generic后无法启动，进入initramfs BusyBox shell求助

我有一台从Ubuntu 18.04逐步升级到22.04，再到22.04.5的系统，使用内核6.5.0-41-generic时运行完全正常，但安装最新的HWE内核6.8.0-47-generic后，系统无法正常启动，弹出了一系列错误提示，具体内容如下：

volume group "vgservername" not found
cannot process volume group vgservername
gave up waiting for suspend/resume device
volume group "vgservername" not found
cannot process volume group vgservername
gave up waiting for root file system device. Commons problems:
- boot args (cat /proc/cmdline)
 - check rootdelay= (did the system wait long enough)
- missing modules (cat /proc/modules; ls /dev/)
ALERT! /dev/mapper/vgservername-root does not exist. Dropping to a shell!
    
    Busybox v1.30.1 (ubuntu 1:1.30.1-7ubuntu3.1 built in shell (ash))
    (initramfs)

我在initramfs shell里执行了cat /proc/cmdline，得到的输出是：

BOOT_IMAGE=/boot/vmlinuz-6.8.0-60-generic root=/dev/mapper/vgservername-root ro quiet splash net.ifnames=0 biosdevname=0 vt.handoff=7

现在卡在这个BusyBox shell里，不知道该怎么解决这个问题，麻烦各位大佬给点建议！

备注：内容来源于stack exchange，提问作者alfredo