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→Part 1: Common Booting Issues: - still had a reference to ops235
===Part 1: Common Booting Issues===
There are a few "classic problems" that students can encounter with their virtual machines and their host machine after performing lab2. Although all OPS235 OPS245 students may not encounter these problems, it is good to be aware of what a potential problem may look like, and know how to solve that problem.
'''A few common problems are:'''
[[Image:grub2_1.png|thumb|right|600px|Add the boot option '''single''' and then press '''ctrl-x''' to boot into single user mode]]
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===Part 2: Booting into Single-User Mode===
If you cannot log graphically into your machine (first two common problems), there is a trick to boot your system into '''single-user''' mode. This mode does not provide networking, graphics, or logging in as other regular users, but can connect to a text-based interface as the '''root''' user. This method will only work if a GRUB (<u>'''Gr'''</u>and '''<u>U</u>'''nified <u>'''B'''</u>oot-loader) password has not been set, or that you haven't forgotten the GRUB password.