1 00:00:00,050 --> 00:00:01,050 - [Instructor] For this exercise, 2 00:00:01,050 --> 00:00:03,000 we'll be doing a non-interactive 3 00:00:03,000 --> 00:00:04,080 automated install of CentOS 7 4 00:00:04,080 --> 00:00:07,080 into a guest VM using our FTP repository 5 00:00:07,080 --> 00:00:09,040 in a remote kickstart file 6 00:00:09,040 --> 00:00:13,000 from the exercisefiles.zip archive we extracted. 7 00:00:13,000 --> 00:00:15,040 Because we're using the kickstart file from the FTP server 8 00:00:15,040 --> 00:00:17,040 we need to copy it there first. 9 00:00:17,040 --> 00:00:20,010 Go to where you extracted the exercise files zip archive, 10 00:00:20,010 --> 00:00:22,020 in my case this is my user's home directory, 11 00:00:22,020 --> 00:00:24,090 so I'm going to type in cd ~ and hit enter 12 00:00:24,090 --> 00:00:26,060 and then type in ls. 13 00:00:26,060 --> 00:00:31,030 You should see the Ex_Files_RHCE_CertPrep_Routing directory. 14 00:00:31,030 --> 00:00:33,020 Cd into it by typing in cd space 15 00:00:33,020 --> 00:00:38,080 capital e tab, capital e tab, capital c tab. 16 00:00:38,080 --> 00:00:40,060 This took me into /home/grant/ 17 00:00:40,060 --> 00:00:43,030 Ex_Files_RHCE_CertPrep_Routing 18 00:00:43,030 --> 00:00:47,050 /Exercise Files/Ch 02 and then type in ls 19 00:00:47,050 --> 00:00:50,030 and you should see the kickstart files. 20 00:00:50,030 --> 00:00:55,010 We're going to copy the centos-ftp-ks.cfg file 21 00:00:55,010 --> 00:00:57,010 to our FTP repository. 22 00:00:57,010 --> 00:01:04,010 Type in sudo cp centos7-ks.cfg 23 00:01:04,010 --> 00:01:09,090 /var/ftp/pub/el7 and hit enter. 24 00:01:09,090 --> 00:01:11,090 The complete command line for installing CentOS 7 25 00:01:11,090 --> 00:01:14,030 via kickstart file from an FTP repository 26 00:01:14,030 --> 00:01:17,000 is quite long so let's discuss it. 27 00:01:17,000 --> 00:01:18,080 We have to elevate privileges to create a VM, 28 00:01:18,080 --> 00:01:20,090 so we prefix the line with sudo. 29 00:01:20,090 --> 00:01:22,000 The second highlighted section 30 00:01:22,000 --> 00:01:26,020 sets the name of the VM to centos7-ftp-ks 31 00:01:26,020 --> 00:01:27,030 to remind us that we installed 32 00:01:27,030 --> 00:01:30,080 to the kickstart file from our FTP repository. 33 00:01:30,080 --> 00:01:32,070 This is the amount of RAM for our VM guest 34 00:01:32,070 --> 00:01:35,020 and this is the disk image you will install into. 35 00:01:35,020 --> 00:01:37,070 Virt-install creates this for us. 36 00:01:37,070 --> 00:01:41,070 The --location option is the location of the package files, 37 00:01:41,070 --> 00:01:43,030 make sure the path you use matches 38 00:01:43,030 --> 00:01:45,030 where you created the FTP server. 39 00:01:45,030 --> 00:01:46,080 In my case, the path would be 40 00:01:46,080 --> 00:01:57,070 - -location="ftp://192.168.122.1/pub/el7". 41 00:01:57,070 --> 00:02:02,020 The --nographics option specifies a non-graphical install. 42 00:02:02,020 --> 00:02:04,010 These are the extra arguments that will get passed 43 00:02:04,010 --> 00:02:05,090 to the Linux kernel during install. 44 00:02:05,090 --> 00:02:08,040 The ks= section tells the Linux guest kernel 45 00:02:08,040 --> 00:02:11,040 to use the kickstart file from the FTP server. 46 00:02:11,040 --> 00:02:13,020 The ip= section tells the guest 47 00:02:13,020 --> 00:02:16,030 to get its IP address from a DHCP server. 48 00:02:16,030 --> 00:02:19,050 The console option set up ways for us to see the output. 49 00:02:19,050 --> 00:02:21,080 The latter console line configures a serial console 50 00:02:21,080 --> 00:02:27,030 using the /dev/ttys0 device at 115,200 bits per second, 51 00:02:27,030 --> 00:02:30,010 no parity and eight databits. 52 00:02:30,010 --> 00:02:31,080 The last argument is the os variant 53 00:02:31,080 --> 00:02:35,010 which allows installation time optimization by KVM. 54 00:02:35,010 --> 00:02:38,000 You can use the os-query info command 55 00:02:38,000 --> 00:02:41,060 to get a list of possible os variants. 56 00:02:41,060 --> 00:02:42,080 Now, let's type it all in. 57 00:02:42,080 --> 00:02:47,010 Type in clear and then type in the entire line. 58 00:02:47,010 --> 00:02:48,070 Considering the length of this command line, 59 00:02:48,070 --> 00:02:51,000 there's a high chance of having a typo or two. 60 00:02:51,000 --> 00:02:53,000 Just fix the typos, delete the VM 61 00:02:53,000 --> 00:02:55,070 and run it again until the install is successful. 62 00:02:55,070 --> 00:02:57,050 If you have to run the command line more than once, 63 00:02:57,050 --> 00:02:59,000 virt-install will probably complain 64 00:02:59,000 --> 00:03:02,010 because the VM or disk image may already exist. 65 00:03:02,010 --> 00:03:04,010 In this case you may have to shut down the guest VM 66 00:03:04,010 --> 00:03:06,050 and delete it before running the install again. 67 00:03:06,050 --> 00:03:07,060 If so, just flip over to the 68 00:03:07,060 --> 00:03:10,050 Virtual Machine Manager GUI window and do it there. 69 00:03:10,050 --> 00:03:12,010 Using Virtual Machine Manager you can 70 00:03:12,010 --> 00:03:14,070 right click on the VM and force it to shut down. 71 00:03:14,070 --> 00:03:16,060 Once it's shut down you can delete the guest VM 72 00:03:16,060 --> 00:03:19,010 before trying to install again from the command line. 73 00:03:19,010 --> 00:03:21,070 Now hit enter to start the install. 74 00:03:21,070 --> 00:03:23,090 The install should complete in 15 to 45 minutes 75 00:03:23,090 --> 00:03:27,070 depending on your hardware and your network speed. 76 00:03:27,070 --> 00:03:30,050 Using movie magic we will speed up 77 00:03:30,050 --> 00:03:31,040 the installation process in the video, 78 00:03:31,040 --> 00:03:32,080 so you'll want to pause the video 79 00:03:32,080 --> 00:03:40,060 until your installation catches up. 80 00:03:40,060 --> 00:03:43,000 Once the install is done, the VM will reboot.