1 00:00:00,180 --> 00:00:01,560 After formatting your partitions 2 00:00:01,560 --> 00:00:03,870 and logical volumes with the file system, 3 00:00:03,870 --> 00:00:06,060 you need to actually make it possible for the users 4 00:00:06,060 --> 00:00:08,520 and the system to work with the file systems. 5 00:00:08,520 --> 00:00:09,353 So in this demonstration, 6 00:00:09,353 --> 00:00:10,650 we're going to walk through 7 00:00:10,650 --> 00:00:14,370 how to make these file systems available by mounting them. 8 00:00:14,370 --> 00:00:16,350 You can think of mounting as creating a doorway 9 00:00:16,350 --> 00:00:17,610 into a new room. 10 00:00:17,610 --> 00:00:18,480 Without the door, 11 00:00:18,480 --> 00:00:21,210 the space in the room simply is unusable. 12 00:00:21,210 --> 00:00:23,130 So let's go ahead and get started with mounting these. 13 00:00:23,130 --> 00:00:24,420 Now, just in case you forgot 14 00:00:24,420 --> 00:00:26,160 which logical volumes you created, 15 00:00:26,160 --> 00:00:27,513 we can use lvscan. 16 00:00:29,640 --> 00:00:32,310 And now we can see that we're going to be working with the 17 00:00:32,310 --> 00:00:33,690 dev/backup/sysbk, 18 00:00:33,690 --> 00:00:35,520 dev/backup/databk, 19 00:00:35,520 --> 00:00:36,960 and dev/backup/logbk. 20 00:00:36,960 --> 00:00:39,120 We're going to associate these logical volumes 21 00:00:39,120 --> 00:00:41,730 to a directory that we're going to create now. 22 00:00:41,730 --> 00:00:44,153 So, first thing we want to do is make the directory. 23 00:00:46,860 --> 00:00:47,693 Use -p. 24 00:00:47,693 --> 00:00:49,680 So this means that we're going to create 25 00:00:49,680 --> 00:00:52,473 any necessary parent directories. 26 00:00:55,136 --> 00:00:56,703 (indistinct) backup/sys, 27 00:00:58,500 --> 00:01:02,943 do /backup/data, do /backup/log. 28 00:01:07,200 --> 00:01:08,580 Okay. 29 00:01:08,580 --> 00:01:12,243 Now we're just going to cd into that, 30 00:01:13,110 --> 00:01:15,120 make sure that those were created. 31 00:01:15,120 --> 00:01:16,350 All right. 32 00:01:16,350 --> 00:01:17,760 So next we're going to actually just go ahead 33 00:01:17,760 --> 00:01:18,933 and mount these files. 34 00:01:20,550 --> 00:01:23,463 So, use the logical volume backup, 35 00:01:26,977 --> 00:01:28,144 then do sysbk. 36 00:01:34,685 --> 00:01:35,518 And sys. 37 00:01:36,701 --> 00:01:37,534 Okay, we're going to do the same thing 38 00:01:37,534 --> 00:01:40,233 two more times for the data, 39 00:01:48,540 --> 00:01:51,753 and then once more for the log. 40 00:01:53,040 --> 00:01:55,410 Important log directory, 41 00:01:55,410 --> 00:01:57,210 going to make a lot of use of that one. 42 00:01:58,890 --> 00:02:03,240 Okay, that was to verify that these were actually 43 00:02:03,240 --> 00:02:04,500 mounted correctly. 44 00:02:04,500 --> 00:02:06,173 So I'm just going to use the mount command. 45 00:02:09,829 --> 00:02:11,550 Now, if you can see at the very bottom, 46 00:02:11,550 --> 00:02:13,563 you see the association with the mapper. 47 00:02:16,530 --> 00:02:19,290 Okay, we verified that the backup/sysbk is there. 48 00:02:19,290 --> 00:02:22,490 It's associated with this correlating directory, 49 00:02:22,490 --> 00:02:25,110 along with the data and logbk. 50 00:02:25,110 --> 00:02:28,440 Now let's test out just unmounting one of the systems 51 00:02:28,440 --> 00:02:29,520 really quick. 52 00:02:29,520 --> 00:02:30,777 Going to do umount. 53 00:02:32,339 --> 00:02:35,107 We going to do the backup, the log. 54 00:02:36,270 --> 00:02:38,120 Okay, that went through successfully. 55 00:02:39,150 --> 00:02:40,750 Yeah, let's verify this is gone. 56 00:02:41,880 --> 00:02:43,170 Now we can see the logical volume 57 00:02:43,170 --> 00:02:44,730 for the log backup system 58 00:02:44,730 --> 00:02:47,430 is no longer associated with this correlating directory. 59 00:02:47,430 --> 00:02:48,510 Now, the next thing we want to do is 60 00:02:48,510 --> 00:02:51,240 ensure the logical volumes are mounted on boot. 61 00:02:51,240 --> 00:02:54,600 So we have to manipulate the fstab configuration file. 62 00:02:54,600 --> 00:02:56,183 So let's go ahead and do that now. 63 00:02:59,129 --> 00:03:01,593 vim /etc/fstab. 64 00:03:03,720 --> 00:03:05,320 Okay, we're going to use the insert 65 00:03:06,450 --> 00:03:08,040 and we're going to input this information here, 66 00:03:08,040 --> 00:03:09,153 the association. 67 00:03:11,275 --> 00:03:13,533 /backup/sysbk. 68 00:03:19,530 --> 00:03:21,453 Use the file system, xfs. 69 00:03:22,440 --> 00:03:23,990 Going to keep these defaults here. 70 00:03:26,490 --> 00:03:27,603 Okay, same thing, 71 00:03:37,800 --> 00:03:40,713 ext4, default. 72 00:03:48,480 --> 00:03:49,313 And logbk, 73 00:03:55,983 --> 00:03:57,063 ext4 again. 74 00:04:04,020 --> 00:04:04,853 Okay. 75 00:04:06,196 --> 00:04:09,120 We're going to escape, get out of the insert mode. 76 00:04:09,120 --> 00:04:12,900 Colon, right, quit, wq. 77 00:04:12,900 --> 00:04:13,830 So next what we want to do 78 00:04:13,830 --> 00:04:18,003 is test that we can mount these files with no errors. 79 00:04:19,500 --> 00:04:22,503 Do sudo mount -a, 80 00:04:24,780 --> 00:04:27,540 and without any errors that shows that 81 00:04:27,540 --> 00:04:29,010 we can successfully do that. 82 00:04:29,010 --> 00:04:32,550 So to clarify let's test the fstab file specifically 83 00:04:32,550 --> 00:04:34,620 to ensure we can mount all of the volumes 84 00:04:34,620 --> 00:04:36,150 that are listed in it. 85 00:04:36,150 --> 00:04:38,550 Remember a misconfiguration of the fstab file 86 00:04:38,550 --> 00:04:40,650 may prevent the system from booting. 87 00:04:40,650 --> 00:04:41,970 We've done a quick walkthrough of 88 00:04:41,970 --> 00:04:44,280 how to mount the logical volumes 89 00:04:44,280 --> 00:04:46,320 to the directories that we created. 90 00:04:46,320 --> 00:04:48,303 And I will see you in the next lesson.