1 00:00:00,060 --> 00:00:01,110 In this demonstration, 2 00:00:01,110 --> 00:00:02,880 we're just going to quickly go over how to get information 3 00:00:02,880 --> 00:00:05,910 about the Linux system kernel. 4 00:00:05,910 --> 00:00:08,520 Now, there's two types of kernels that we typically use 5 00:00:08,520 --> 00:00:09,630 in the operating system world. 6 00:00:09,630 --> 00:00:11,190 There's the monolithic kernel 7 00:00:11,190 --> 00:00:13,170 and then there's the microkernel. 8 00:00:13,170 --> 00:00:16,050 So the monolithic kernel creates a kernel space 9 00:00:16,050 --> 00:00:17,400 and a user space. 10 00:00:17,400 --> 00:00:19,260 And in that kernel space, the kernel is free 11 00:00:19,260 --> 00:00:21,750 to do whatever it wants and gives it maximum control 12 00:00:21,750 --> 00:00:23,940 over all the hardware, device drivers, 13 00:00:23,940 --> 00:00:25,530 things of that nature. 14 00:00:25,530 --> 00:00:27,480 So that makes the system more stable 15 00:00:27,480 --> 00:00:29,490 and typically more powerful. 16 00:00:29,490 --> 00:00:31,440 Now, when it comes to the microkernel, 17 00:00:31,440 --> 00:00:33,810 it focuses itself in the user space 18 00:00:33,810 --> 00:00:36,741 and the microkernel uses the minimum amount of resources 19 00:00:36,741 --> 00:00:39,210 to make sure that it's able to function. 20 00:00:39,210 --> 00:00:41,820 Now, given that they use little resources, 21 00:00:41,820 --> 00:00:43,740 they're also very stable, 22 00:00:43,740 --> 00:00:45,621 but the performance is usually lacking 23 00:00:45,621 --> 00:00:48,030 in a microkernel architecture. 24 00:00:48,030 --> 00:00:49,890 Now, we're simply just going to go over how to get 25 00:00:49,890 --> 00:00:52,660 this information, and we're going to use the Uname command 26 00:00:56,370 --> 00:00:57,420 and we say we do options. 27 00:00:57,420 --> 00:00:59,820 Just let us know that we're running Linux, 28 00:00:59,820 --> 00:01:01,290 but we're going to want more information that. 29 00:01:01,290 --> 00:01:02,840 So we're going to use the a option 30 00:01:05,280 --> 00:01:07,560 and we see it gives us a lot of information. 31 00:01:07,560 --> 00:01:09,600 So let's dissect it really quick. 32 00:01:09,600 --> 00:01:11,280 So this is simply going to give us 33 00:01:11,280 --> 00:01:13,743 the current version of Linux. 34 00:01:16,020 --> 00:01:18,540 And then we're going to look at the architecture type. 35 00:01:18,540 --> 00:01:22,740 So an X86, 64 bit architecture. 36 00:01:22,740 --> 00:01:24,060 So based off this information, 37 00:01:24,060 --> 00:01:27,240 we can see that we're running 3.10. 38 00:01:27,240 --> 00:01:28,140 That's the version. 39 00:01:28,140 --> 00:01:29,730 Now, this is important when you're installing 40 00:01:29,730 --> 00:01:31,680 different drivers or different add-ons, 41 00:01:31,680 --> 00:01:34,560 because there's different system architectures 42 00:01:34,560 --> 00:01:36,870 that can work with Linux and you need to make sure 43 00:01:36,870 --> 00:01:38,850 you're installing the right device. 44 00:01:38,850 --> 00:01:41,160 For example, I had issues with installing 45 00:01:41,160 --> 00:01:44,310 one of the Iping commands and it was because 46 00:01:44,310 --> 00:01:46,500 I had the wrong driver, 47 00:01:46,500 --> 00:01:49,710 because it had the wrong system architecture type. 48 00:01:49,710 --> 00:01:51,900 I think it was a 32 bit 49 00:01:51,900 --> 00:01:55,020 versus the 64 bit that was necessary 50 00:01:55,020 --> 00:01:57,360 for that particular command to function. 51 00:01:57,360 --> 00:01:59,250 So this is going to be a quick way 52 00:01:59,250 --> 00:02:02,477 to get the information needed to download drivers 53 00:02:02,477 --> 00:02:04,230 and do a whole bunch of other things 54 00:02:04,230 --> 00:02:06,450 that's going to be required as a system administrator. 55 00:02:06,450 --> 00:02:07,283 Thank you. 56 00:02:07,283 --> 00:02:08,580 And I'll see you in the next lesson.