How can the /proc file system be helpful in troubleshooting system problems?

a. You can deliberately fill the / proc filesystem with null data using dd. If the system crashes, you know your problems are hardware-related; if it doesn't, you know the problem is in software.
b. The / proc filesystem holds log files that can contain useful error messages from the kernel, servers, and other programs.
c. When you copy all the files in "etc to / proc/ etc, the system generates a report on configuration errors in / proc/ errors. This report contains helpful troubleshooting information.
d. You can consult / proc pseudo-files to learn what hardware Linux has detected and how it's configured. Unexpected values point to potential sources of problems.

Question

13-01-2020
Computers and Technology

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How can the /proc file system be helpful in troubleshooting system problems?

a. You can deliberately fill the / proc filesystem with null data using dd. If the system crashes, you know your problems are hardware-related; if it doesn't, you know the problem is in software.
b. The / proc filesystem holds log files that can contain useful error messages from the kernel, servers, and other programs.
c. When you copy all the files in "etc to / proc/ etc, the system generates a report on configuration errors in / proc/ errors. This report contains helpful troubleshooting information.
d. You can consult / proc pseudo-files to learn what hardware Linux has detected and how it's configured. Unexpected values point to potential sources of problems.

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jcobisr jcobisr · Answer 1 · 2020-01-15T21:27:54+01:00

Answer:

d. You can consult /proc pseudo-files to learn what hardware Linux has detected and how it's configured. Unexpected values point to potential sources of problems.

Explanation:

The /proc is a special directory in the Gnu/Linux operating system. It is, in fact, a kind of virtual filesystem, which roughly means that "files" are not stored on the hard drive.

Well, this virtual filesystem holds detailed information in "files" about the kernel and it is maintained by the kernel itself (Shotts, 2019), e. g., the running processes are contained in "files" with the same number of the process it represents and more information regarding kernel parameters is also available.

Thus, we can consult the information about /proc/cpuinfo using the cat command (cat /proc/cpuinfo) to "learn" about the CPU the system is using, find information about initial processes consulting the 1/ directory and so on.

As a conclusion, having all this information available, it is possible to learn about the current condition of the system from starting and while the running of the operating system, so we can determine "potential sources of problems" to help "in troubleshooting system problems" including those with hardware.