我正在使用 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1 x86_64 GNU/Linux Debian GNU/Linux 7.1 (wheezy) 版本：7.1。
我输入了“sudo apt-get upgrade”并希望得到最好的（我在使用“sudo ap-get update”之前更新了我的所有软件包）。
虽然我不是这台机器的所有者，但我不知道我可以对 grub 进行任何更改，我只是碰巧拥有 sudo 权限并使用它。
请问，我该怎么办？我害怕破坏我的系统:(
A new version of configuration file /etc/default/grub is available, but the version installed currently has been locally modified.
? What do you want to do about modified configuration file grub? ?
? ?
? install the package maintainer's version ?
? keep the local version currently installed ?
? show the differences between the versions ? …我终于获得了对其中一个节点的 root 访问权限，这难以置信地帮助我安装了大部分软件。但是现在，我第一次遇到了实际上是 root 的问题:-))
We recommend running this script as a designated SMRT Analysis user
(e.g. smrtanalysis) who will own all smrtpipe jobs and daemon
processes.
Current user is 'root' (primary group: root)
Installing as 'root' is not currently supported
Switch to the desired user and restart the install.
Aborting installation...
因此，我尝试创建新用户，但我没有足够的权限来执行此操作：
/usr/local/bin$ sudo adduser smrtanalysis
Adding user `smrtanalysis' ...
Adding new group `smrtanalysis' (1001) ...
Adding new user `smrtanalysis' (1001) with group `smrtanalysis' ...
Creating home directory `/home/smrtanalysis' …