今天早上运行了
我已经浏览了论坛上的解决方案，并可以预先确认，
系统是双启动的，装有Windows 10。通过
sudo do-release-upgrade来将我的系统从Ubtunu 17.10升级到18.04 LTS，但在升级过程中遇到了错误。追踪信息太长无法完整贴出，但以下是我认为可能是问题所在的部分：Rebuilding /usr/share/applications/bamf-2.index...
Errors were encountered while processing:
shim-signed
grub-efi-amd64-signed
Exception during pm.DoInstall(): E:Sub-process /usr/bin/dpkg returned an error code (1)
Could not install the upgrades
The upgrade has aborted. Your system could be in an unusable state. A
recovery will run now (dpkg --configure -a).
Setting up shim-signed (1.34.9+13-0ubuntu2) ...
Installing for x86_64-efi platform.
Could not add entry to BootOrder: Interrupted system call
grub-install: error: efibootmgr failed to register the boot entry: No such device or address.
dpkg: error processing package shim-signed (--configure):
installed shim-signed package post-installation script subprocess returned error exit status 1
Setting up grub-efi-amd64-signed (1.93+2.02-2ubuntu8) ...
Installing for x86_64-efi platform.
Could not add entry to BootOrder: Interrupted system call
grub-install: error: efibootmgr failed to register the boot entry: No such device or address.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
shim-signed
grub-efi-amd64-signed
Upgrade complete
The upgrade has completed but there were errors during the upgrade process.
我已经浏览了论坛上的解决方案，并可以预先确认，
/etc/fstab 中的条目没有被注释掉。执行 cat /etc/fstab 命令会输出以下内容：# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda9 during installation
UUID=a2f91309-dc7e-4456-b3ef-89900b145365 / ext4 errors=remount-ro 0 1
# /boot/efi was on /dev/sda2 during installation
UUID=90EA-4FB8 /boot/efi vfat umask=0077 0 1
# swap was on /dev/sda6 during installation
UUID=2f80d8f4-5609-45e1-854d-578ab25836c3 none swap sw 0 0
系统是双启动的，装有Windows 10。通过
lsb_release -a命令，我可以确认我的Ubuntu分区已经更新到18.04 LTS版本，但这些错误让我感到不安，我不希望它们在长期使用中引起问题。谢谢。