我收到错误：
E: Sub-process /usr/bin/dpkg returned an error code (1)
在我尝试升级 PC 时发生了这种情况。我使用 Eclipse，但它不断崩溃。请帮忙。
以下是终端的全文，包括错误消息：
sanju@sanju-Dell-System-XPS-L502X:~$ upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages have been kept back:
aisleriot gir1.2-rb-3.0 gir1.2-totem-1.0 gnome-disk-utility gnome-keyring
libgck-1-0 libgcr-3-1 libtotem0 linux-generic linux-headers-generic
linux-image-generic rhythmbox rhythmbox-data rhythmbox-mozilla
rhythmbox-plugin-cdrecorder rhythmbox-plugin-magnatune
rhythmbox-plugin-zeitgeist rhythmbox-plugins seahorse totem totem-common
totem-mozilla totem-plugins
0 upgraded, 0 newly installed, 0 to remove and 23 not upgraded.
1 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 grub-pc (1.99-21ubuntu3.1) ...
/var/lib/dpkg/info/grub-pc.config: 35: /etc/default/grub: Syntax error: EOF in backquote substitution
dpkg: error processing grub-pc (--configure):
subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
grub-pc
E: Sub-process /usr/bin/dpkg returned an error code (1)
答案1
您的 /etc/default/grub 文件不正确。
- 打开终端（Ctrl+Alt+T）
- 输入此命令：
gksudo gedit /etc/default/grub， 将打开一个文本文件，用以下标准内容替换其内容：
保存文件
- 连接互联网
在终端中，输入以下命令：
sudo dpkg --configure -a sudo apt-get install -fy sudo apt-get update sudo apt-get upgrade