安装进入 Ubuntu 加载屏幕，我单击左侧按钮查看代码，它显示了正在发生的事情：
stdin: Not a typewriter
Generating locales...
en_US.UTF-8... done
Generation complete.
chroot: can't execute 'glib-compile-schemas': Input/output error
chroot: can't execute '/usr/lib/user-setup/user-setup-apply': Input/output error
install: invalid user 'ubuntu'
install: invalid user 'ubuntu'
Using CD-ROM mount point /cdrom/
Identifying... [bac8495d27ebe9f23250907977f69e73-2]
Scanning disc for index files...
Found 2 package indexes, 0 source indexes, 0 translation indexes and 1 signatures
Found label 'Ubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140417)'
This disc is called:
'Ubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140417)'
Copying package lists... gpgv: Signature made Thu Apr 17 01:35:09 2014 UTC using DSA Key ID FBB75451
gpgv: Good signature from "Ubuntu CD Image Automatic Signing Ket <[email protected]>"
Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom: [Ubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140417)]/trusty main restricted
Repeat this process for the rest of the CDS in your set...
*Starting Mount filesystem on boot [OK]
*Starting Signal sysvinit that the rootfs is mounted [OK]
*Starting Populate and link to /run filesystem [OK]
*Stopping Track if upstart is running in a container [OK]
*Starting Mount filesystem on boot [fail]
*Stopping Mount filesystem on boot [OK]
然后，一秒钟内发生了很多事情，我无法记录下来。它让我看到一个屏幕，上面写着：
General error mounting filesystems
A maintenance shell will now be started
CONTROL-D will terminate this shell and reboot the system
（如果有拼写错误，请见谅，这是我从手写翻译过来的。顺便说一句，我不是美国人，我不知道为什么它说“en_US.UTF-8... done”，而且签名中标记的时间似乎也是来自美国的。）
答案1
根据输入/输出错误，我怀疑你的 CD/DVD 阅读器可能出现故障，你也许应该尝试制作一个可启动 USB 驱动器。