1 00:00:00,330 --> 00:00:01,260 Today, I'm going to walk you through 2 00:00:01,260 --> 00:00:04,650 how to install Linux in a virtualized environment. 3 00:00:04,650 --> 00:00:06,540 Now, the particular virtual machine 4 00:00:06,540 --> 00:00:09,450 that we're going to use is created by Oracle 5 00:00:09,450 --> 00:00:11,460 called VirtualBox. 6 00:00:11,460 --> 00:00:14,130 Now, simply go to VirtualBox.org 7 00:00:14,130 --> 00:00:16,020 and click the big blue Download button 8 00:00:16,020 --> 00:00:17,310 so we can get started. 9 00:00:17,310 --> 00:00:20,340 So here, we're going to focus on the platform packages section. 10 00:00:20,340 --> 00:00:21,870 This screen correlates with the operating system 11 00:00:21,870 --> 00:00:23,790 that you're currently running on your machine. 12 00:00:23,790 --> 00:00:25,590 Not the target operating system that you would like to use 13 00:00:25,590 --> 00:00:27,000 for the virtual machine. 14 00:00:27,000 --> 00:00:29,610 So we're going to click Windows hosts for me. 15 00:00:29,610 --> 00:00:30,870 Now, of course, you're using a macOS, 16 00:00:30,870 --> 00:00:32,940 you're going to click OS X hosts. 17 00:00:32,940 --> 00:00:34,470 And if you using Linux distribution, 18 00:00:34,470 --> 00:00:35,700 you're going to use that. 19 00:00:35,700 --> 00:00:37,620 All right, so now that this finished downloading, 20 00:00:37,620 --> 00:00:39,520 we're going to go ahead and install this. 21 00:00:41,800 --> 00:00:43,380 We're going to click Yes here. 22 00:00:43,380 --> 00:00:44,850 For this example of VirtualBox, 23 00:00:44,850 --> 00:00:45,683 we're going to go ahead 24 00:00:45,683 --> 00:00:47,880 and just go through the default settings 25 00:00:47,880 --> 00:00:49,170 and keep them as is 26 00:00:49,170 --> 00:00:51,660 so we can go ahead and speed up this process. 27 00:00:51,660 --> 00:00:52,860 Shouldn't take too long. 28 00:00:54,630 --> 00:00:56,673 All right, good to go there. 29 00:00:58,170 --> 00:01:02,220 All right, now, for this version of Linux, 30 00:01:02,220 --> 00:01:05,010 we're going to use CentOS 7. 31 00:01:05,010 --> 00:01:08,700 So we're going to go to centos.org/download. 32 00:01:08,700 --> 00:01:10,350 And for this particular architecture, 33 00:01:10,350 --> 00:01:14,190 most people are going to use the x86_64. 34 00:01:14,190 --> 00:01:17,190 That's for the standard 64-bit computer, 35 00:01:17,190 --> 00:01:18,840 which most of our processor even. 36 00:01:20,040 --> 00:01:22,710 We're just going to click the first mirror that we see here. 37 00:01:22,710 --> 00:01:24,000 So on this directory, 38 00:01:24,000 --> 00:01:28,350 it's going to show us different types of ISO images. 39 00:01:28,350 --> 00:01:32,430 So these images are going to contain multiple features. 40 00:01:32,430 --> 00:01:35,790 But for this example, we're only going to need the DVD version, 41 00:01:35,790 --> 00:01:37,830 and we don't need the one with Everything, 42 00:01:37,830 --> 00:01:39,163 Minimal, or the NetInstall. 43 00:01:39,163 --> 00:01:40,230 We're just going to do the DVD version. 44 00:01:40,230 --> 00:01:41,310 Try to save a little space 45 00:01:41,310 --> 00:01:43,020 'cause this one's only 4.4 gigs 46 00:01:43,020 --> 00:01:45,210 versus the size of the other ones. 47 00:01:45,210 --> 00:01:46,170 And we're going to download. 48 00:01:46,170 --> 00:01:47,280 It might take a little minute, 49 00:01:47,280 --> 00:01:48,510 so I'll get right back to you 50 00:01:48,510 --> 00:01:50,160 once I finish downloading. 51 00:01:50,160 --> 00:01:52,500 All right, my ISO image is finish downloading. 52 00:01:52,500 --> 00:01:54,030 Now, what we're going to do next 53 00:01:54,030 --> 00:01:55,950 is just create a new virtual machine. 54 00:01:55,950 --> 00:01:59,160 We're going to simply click this blue New button here, 55 00:01:59,160 --> 00:02:02,883 and we're going to name it CentOS7. 56 00:02:04,950 --> 00:02:06,930 Now, as you can see, VirtualBox is smart enough 57 00:02:06,930 --> 00:02:08,850 to recognize what I'm typing, 58 00:02:08,850 --> 00:02:11,850 and it automatically selects the type of operating system 59 00:02:11,850 --> 00:02:14,070 as well as the distribution. 60 00:02:14,070 --> 00:02:16,410 Now, we're going to keep this machine folder 61 00:02:16,410 --> 00:02:19,380 selected as default, and click Next. 62 00:02:19,380 --> 00:02:22,620 And again, as before, we're going to keep everything 63 00:02:22,620 --> 00:02:25,803 very simple and keep the default settings for this example. 64 00:02:27,090 --> 00:02:29,440 Going to click Create a new virtual hard disk now. 65 00:02:31,770 --> 00:02:34,773 Next, keep that selected. 66 00:02:36,240 --> 00:02:37,540 Eight gigs is good enough. 67 00:02:40,530 --> 00:02:42,570 And alright, we have it created. 68 00:02:42,570 --> 00:02:45,210 First thing we want to do is go to Settings. 69 00:02:45,210 --> 00:02:47,210 And go to Storage here. 70 00:02:47,210 --> 00:02:49,830 I'm going to click this optical blue disk. 71 00:02:49,830 --> 00:02:54,120 What we're going to do now is we're going to select image again, 72 00:02:54,120 --> 00:02:57,270 and we're going to click Choose a disk file. 73 00:02:57,270 --> 00:02:59,280 Now, we're going to select the download 74 00:02:59,280 --> 00:03:01,560 of the CentOS 7 that we did earlier, 75 00:03:01,560 --> 00:03:04,080 and that's going to be our ISO image. 76 00:03:04,080 --> 00:03:04,913 Click Open. 77 00:03:05,970 --> 00:03:09,120 All right, see it highlighted there? 78 00:03:09,120 --> 00:03:11,973 Click Okay, and Start. 79 00:03:15,093 --> 00:03:17,490 Going to let it do its thing for a little bit. 80 00:03:17,490 --> 00:03:19,503 We're just going to select Enter, 81 00:03:21,270 --> 00:03:23,913 and let the installation process begin. 82 00:03:34,020 --> 00:03:36,587 All right, so now we're on the main screen. 83 00:03:36,587 --> 00:03:37,420 What we're going to do here, 84 00:03:37,420 --> 00:03:40,140 we're going to start by configuring the localization settings. 85 00:03:40,140 --> 00:03:40,973 We're just go ahead. 86 00:03:40,973 --> 00:03:42,840 Select the standard keyboard, English. 87 00:03:42,840 --> 00:03:43,673 It's going to be for me, 88 00:03:43,673 --> 00:03:45,770 whatever language you are, you select that. 89 00:03:47,730 --> 00:03:48,573 Okay, Continue. 90 00:03:52,230 --> 00:03:53,400 First thing we're going to do 91 00:03:53,400 --> 00:03:55,950 is select the date and time. 92 00:03:55,950 --> 00:03:57,960 Now I'm in Sacramento, California 93 00:03:57,960 --> 00:04:00,720 so I'm going to select the West Coast. 94 00:04:00,720 --> 00:04:03,483 You select whatever region that you will like. 95 00:04:05,400 --> 00:04:06,420 The next thing we're going to do 96 00:04:06,420 --> 00:04:08,160 is select the software components 97 00:04:08,160 --> 00:04:09,513 in the base environment. 98 00:04:11,610 --> 00:04:14,100 So as far as software selection goes, 99 00:04:14,100 --> 00:04:14,933 first thing we're going to select 100 00:04:14,933 --> 00:04:16,053 is the server with GUI. 101 00:04:16,980 --> 00:04:18,990 Now, by default, the server with GUI selection 102 00:04:18,990 --> 00:04:20,670 will install most tools necessary 103 00:04:20,670 --> 00:04:22,470 for the configuration and maintenance 104 00:04:22,470 --> 00:04:24,330 of general server infrastructure, 105 00:04:24,330 --> 00:04:27,300 Along with the GNOME as the default GUI. 106 00:04:27,300 --> 00:04:29,310 Now, just a little gee whiz kid, 107 00:04:29,310 --> 00:04:34,230 GNOME stands for GNU Network Object Model Environment. 108 00:04:34,230 --> 00:04:35,280 It's just always easier for me 109 00:04:35,280 --> 00:04:37,560 if I understand the acronym 110 00:04:37,560 --> 00:04:39,810 when it comes to understanding things a little better. 111 00:04:39,810 --> 00:04:40,643 It's nothing more there, 112 00:04:40,643 --> 00:04:43,050 one of the basic graphical user interfaces 113 00:04:43,050 --> 00:04:46,140 used by a lot of Linux distributions. 114 00:04:46,140 --> 00:04:48,023 So we're going to go ahead and select that. 115 00:04:49,890 --> 00:04:52,290 Now, as far as add-ons for the selected environment, 116 00:04:52,290 --> 00:04:54,180 we're going to scroll down here 117 00:04:54,180 --> 00:04:57,003 and we're going to select the KDE workspace. 118 00:04:57,990 --> 00:04:58,823 Click Done. 119 00:05:01,650 --> 00:05:04,350 We'll wait for it to finish checking its dependencies. 120 00:05:05,250 --> 00:05:07,890 All right, looks like we're good to go there. 121 00:05:07,890 --> 00:05:08,760 Next thing we're want to do 122 00:05:08,760 --> 00:05:11,670 is wipe this storage device to start fresh. 123 00:05:11,670 --> 00:05:13,440 So under the system section, 124 00:05:13,440 --> 00:05:16,053 we're going to select Installation Destination. 125 00:05:17,970 --> 00:05:19,230 Okay, here we see, 126 00:05:19,230 --> 00:05:21,810 this is the virtual disk that we created earlier 127 00:05:21,810 --> 00:05:23,340 when we was creating the machine. 128 00:05:23,340 --> 00:05:25,340 So we're going to make sure we select this, 129 00:05:26,340 --> 00:05:27,870 and we're going to ensure 130 00:05:27,870 --> 00:05:31,620 that the automatically configure in partition is selected. 131 00:05:31,620 --> 00:05:33,480 We're also going to make sure the check box 132 00:05:33,480 --> 00:05:34,650 for I would like to make 133 00:05:34,650 --> 00:05:37,443 additional space available is checked. 134 00:05:38,910 --> 00:05:40,610 And then, we're going to select Done. 135 00:05:42,480 --> 00:05:43,410 So on this screen, 136 00:05:43,410 --> 00:05:46,080 to make sure we reclaim the disk space, 137 00:05:46,080 --> 00:05:47,730 it's good for general practice. 138 00:05:47,730 --> 00:05:49,860 We're going to ensure that we have free space, 139 00:05:49,860 --> 00:05:53,280 which it should be the rough amount that we used earlier, 140 00:05:53,280 --> 00:05:55,350 because the disk is still empty. 141 00:05:55,350 --> 00:05:57,950 And we're just going to click Reclaim space right here. 142 00:05:59,580 --> 00:06:02,100 Again, that's just for general good practice 143 00:06:02,100 --> 00:06:05,013 to make sure that the disk that we're using is clear. 144 00:06:05,940 --> 00:06:07,140 So now, what we're going to do 145 00:06:07,140 --> 00:06:09,870 is configure the partition of scheme to use. 146 00:06:09,870 --> 00:06:12,533 We're going to click the Installation Destination button again. 147 00:06:14,580 --> 00:06:16,110 Now, this time, we're going to click 148 00:06:16,110 --> 00:06:17,823 I will configure partitioning. 149 00:06:19,500 --> 00:06:20,553 Click Done here. 150 00:06:22,650 --> 00:06:23,910 Now, the first thing we want to do 151 00:06:23,910 --> 00:06:25,560 is make sure that there's no other mount points 152 00:06:25,560 --> 00:06:26,460 that's been using, 153 00:06:26,460 --> 00:06:29,073 and we're going to use the default LVM selection. 154 00:06:30,780 --> 00:06:31,613 Next thing we want to do 155 00:06:31,613 --> 00:06:34,150 is to select Click here to create them automatically. 156 00:06:37,140 --> 00:06:39,090 All right, so the main three volumes 157 00:06:39,090 --> 00:06:40,980 that we want to make sure that were created 158 00:06:40,980 --> 00:06:44,310 is the forward slash, boot, forward slash, 159 00:06:44,310 --> 00:06:47,313 which is also root, and the swap partition. 160 00:06:49,140 --> 00:06:50,940 All right, we see those three there. 161 00:06:53,040 --> 00:06:54,360 Now, just the point of note, 162 00:06:54,360 --> 00:06:56,400 sometimes if you have a hard disk 163 00:06:56,400 --> 00:06:58,440 that's larger than 50 gigabytes 164 00:06:58,440 --> 00:07:01,350 it will automatically create a forward slash, home for us, 165 00:07:01,350 --> 00:07:03,000 but since we have less than that, 166 00:07:03,000 --> 00:07:04,050 we're not going to create it, 167 00:07:04,050 --> 00:07:06,033 it's going to be part of the root system. 168 00:07:06,960 --> 00:07:09,120 We just want to take note of the space 169 00:07:09,120 --> 00:07:11,220 that each one of the systems are using 170 00:07:11,220 --> 00:07:13,500 as well as the available space. 171 00:07:13,500 --> 00:07:17,073 And then, we're just going to select Done right here. 172 00:07:19,710 --> 00:07:21,633 We're going to select Accept Changes, 173 00:07:24,060 --> 00:07:25,110 and we're good to go. 174 00:07:25,950 --> 00:07:27,390 Now, the next thing we want to do 175 00:07:27,390 --> 00:07:29,760 is move on to configuring the network. 176 00:07:29,760 --> 00:07:31,770 So on this installation summary page, 177 00:07:31,770 --> 00:07:34,860 we're going to go select network and host name. 178 00:07:34,860 --> 00:07:37,770 All right, now, on this screen, 179 00:07:37,770 --> 00:07:40,110 what we're going to do is ensure that the interface 180 00:07:40,110 --> 00:07:41,280 that we want to use, 181 00:07:41,280 --> 00:07:46,280 which is in my case, enpOS3 is selected. 182 00:07:46,290 --> 00:07:48,210 That's simply the virtual machine interface 183 00:07:48,210 --> 00:07:50,250 that we're going to use to connect to the internet 184 00:07:50,250 --> 00:07:51,360 that we selected earlier 185 00:07:51,360 --> 00:07:52,590 when we was creating the virtual machine 186 00:07:52,590 --> 00:07:54,543 when we first installed VirtualBox. 187 00:07:55,410 --> 00:07:57,810 All right, now here, we see the host name. 188 00:07:57,810 --> 00:08:00,180 We can leave it as a default right now 189 00:08:00,180 --> 00:08:01,780 as to our localhost. 190 00:08:01,780 --> 00:08:03,480 Here, we're going to go to Configure. 191 00:08:04,770 --> 00:08:05,670 The next thing we want to do 192 00:08:05,670 --> 00:08:08,850 is make sure we go to the IPv4 settings, 193 00:08:08,850 --> 00:08:11,160 and we're going to select Manual. 194 00:08:11,160 --> 00:08:12,630 So in this example, what we're going to do 195 00:08:12,630 --> 00:08:15,690 is add an IP address, a static IP address, 196 00:08:15,690 --> 00:08:18,030 that we're going to use to connect to the internet. 197 00:08:18,030 --> 00:08:22,747 So for this example, we're going to use 10.50.1.201. 198 00:08:26,250 --> 00:08:27,630 We're going to use that. 199 00:08:27,630 --> 00:08:32,453 And for the netmask, we're going to use 255.255.255.0. 200 00:08:35,130 --> 00:08:39,860 And the gateway is going to be 10.50.1.1. 201 00:08:41,909 --> 00:08:43,470 For the DNS servers, 202 00:08:43,470 --> 00:08:47,550 we're going to use the default 8.8.8.8. 203 00:08:47,550 --> 00:08:49,590 For those of who do not know this, 204 00:08:49,590 --> 00:08:51,573 google DNS server. 205 00:08:52,590 --> 00:08:54,813 And we're going to save. 206 00:08:56,430 --> 00:08:57,390 Now, last but not least, 207 00:08:57,390 --> 00:09:00,783 we want to make sure that we have this ethernet connection on. 208 00:09:01,620 --> 00:09:03,000 So it shows it's connected, 209 00:09:03,000 --> 00:09:04,500 and we're going to click done. 210 00:09:06,180 --> 00:09:07,080 All right, we're done with that. 211 00:09:07,080 --> 00:09:09,930 So next thing we're going to do is click Begin Installation. 212 00:09:12,660 --> 00:09:13,493 Now on this screen, 213 00:09:13,493 --> 00:09:14,490 we're going to start to configure 214 00:09:14,490 --> 00:09:17,460 the usernames and user accounts. 215 00:09:17,460 --> 00:09:18,600 So on our user settings, 216 00:09:18,600 --> 00:09:21,273 first thing we want to do is select the Root Password. 217 00:09:22,710 --> 00:09:24,900 Now, of course, we should always use 218 00:09:24,900 --> 00:09:28,740 the most complex and strong passwords possible, 219 00:09:28,740 --> 00:09:30,840 but for the sake of this example, 220 00:09:30,840 --> 00:09:32,820 we'll keep it very simple. 221 00:09:32,820 --> 00:09:34,370 We have the password set there. 222 00:09:36,930 --> 00:09:39,090 So the next thing we're going to do is create a user account. 223 00:09:39,090 --> 00:09:39,923 And we're going to do this 224 00:09:39,923 --> 00:09:41,823 by selecting the User Creation button. 225 00:09:44,070 --> 00:09:45,540 Now, for this example, 226 00:09:45,540 --> 00:09:49,260 I'm just going to use host1 as the username. 227 00:09:49,260 --> 00:09:52,770 And, of course, we want to make this administrator. 228 00:09:52,770 --> 00:09:56,370 And then as stated earlier, 229 00:09:56,370 --> 00:09:57,300 in a production environment, 230 00:09:57,300 --> 00:10:00,060 you want to make sure you're using a complex password 231 00:10:00,060 --> 00:10:01,860 because you don't want the system to be subject 232 00:10:01,860 --> 00:10:03,630 to any dictionary attacks, 233 00:10:03,630 --> 00:10:06,990 where a hacker essentially collects a whole bunch 234 00:10:06,990 --> 00:10:11,940 of commonly use passwords like password123, 235 00:10:11,940 --> 00:10:12,773 or anything like that, 236 00:10:12,773 --> 00:10:15,333 or, especially, avoid your name. 237 00:10:16,650 --> 00:10:18,900 All right, we're good to go there. 238 00:10:18,900 --> 00:10:20,950 And that's how you create a user account. 239 00:10:22,260 --> 00:10:24,630 Now, at this point, we're waiting for the system to install. 240 00:10:24,630 --> 00:10:26,160 Now, this can take up to 30 minutes, 241 00:10:26,160 --> 00:10:28,170 so I'll be back as soon as everything is installed 242 00:10:28,170 --> 00:10:29,340 for you, guys 243 00:10:29,340 --> 00:10:32,490 it looks like that we have completed the installation. 244 00:10:32,490 --> 00:10:33,840 Now, the next thing we want to click 245 00:10:33,840 --> 00:10:35,223 is the Reboot button here. 246 00:10:39,630 --> 00:10:43,263 Next thing we need to do is select and accept the license. 247 00:10:44,400 --> 00:10:46,623 We want to select it here, click Done. 248 00:10:47,880 --> 00:10:50,103 And click Finish Configuration. 249 00:10:56,010 --> 00:10:57,870 We're going to log in with the password 250 00:10:57,870 --> 00:11:00,370 that we used earlier for our user that we created, 251 00:11:01,710 --> 00:11:02,733 whatever that is. 252 00:11:04,470 --> 00:11:06,090 All right, we're in. 253 00:11:06,090 --> 00:11:08,403 Keep our settings the same with English. 254 00:11:09,450 --> 00:11:11,610 We have English here, keep that same. 255 00:11:11,610 --> 00:11:14,973 Next, keep the default settings. 256 00:11:17,670 --> 00:11:18,843 Skip this for now. 257 00:11:19,830 --> 00:11:23,040 And we're going to start using CentOS Linux. 258 00:11:23,040 --> 00:11:26,640 And now we're booted into our own CentOS Linux system. 259 00:11:26,640 --> 00:11:27,990 And we will return to the system 260 00:11:27,990 --> 00:11:30,450 as we do our hands-on demonstrations together. 261 00:11:30,450 --> 00:11:31,320 Thank you for sticking with me 262 00:11:31,320 --> 00:11:33,090 throughout the entire installation process, 263 00:11:33,090 --> 00:11:35,643 and I will see you in the next hands-on lesson.