RH134 - ch07s02

In this exercise, you create a partition on a new storage device, format it with an XFS file system, configure it to mount at boot, and mount it for use.

Outcomes

Use the parted, mkfs.xfs, and other commands to create a partition on a new disk, format it, and persistently mount it.

As the student user on the workstation machine, use the lab command to prepare your system for this exercise.

This command prepares your environment and ensures that all required resources are available.

[student@workstation ~]$ lab start storage-partitions

Instructions

student@workstation ~]$ ssh student@servera
...output omitted...
[student@servera ~]$ sudo -i
[sudo] password for student: student
[root@servera ~]#

Create an msdos disk label on the /dev/vdb device.

[root@servera ~]# parted /dev/vdb mklabel msdos
Information: You may need to update /etc/fstab.

Add a 1 GB primary partition. For correct alignment, start the partition at the 2048 sector. Set the partition file-system type to XFS.
1. Use parted interactive mode to create the partition.
```
[root@servera ~]# parted /dev/vdb
GNU Parted 3.4
Using /dev/vdb
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) mkpart
Partition type?  primary/extended? primary
File system type?  [ext2]? xfs
Start? 2048s
End? 1001MB
(parted) quit
Information: You may need to update /etc/fstab.
```
  Because the partition starts at the 2048 sector, the previous command sets the end position to 1001 MB to get a partition size of 1000 MB (1 GB).
  Alternatively, you can perform the same operation with the following non-interactive command: parted /dev/vdb mkpart primary xfs 2048s 1001 MB
2. Verify your work by listing the partitions on the /dev/vdb device.
```
[root@servera ~]# parted /dev/vdb print
Model: Virtio Block Device (virtblk)
Disk /dev/vdb: 5369MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Disk Flags:

Number  Start   End     Size    Type     File system  Flags
 1      1049kB  1001MB  1000MB  primary
```
3. Run the udevadm settle command. This command waits for the system to register the new partition, and returns when it is done.
```
[root@servera ~]# udevadm settle
```

Format the new partition with the XFS file system.

[root@servera ~]# mkfs.xfs /dev/vdb1
meta-data=/dev/vdb1              isize=512    agcount=4, agsize=61056 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=1, sparse=1, rmapbt=0
         =                       reflink=1    bigtime=1 inobtcount=1
data     =                       bsize=4096   blocks=244224, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
log      =internal log           bsize=4096   blocks=1566, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0

Configure the new file system to mount to the /archive directory persistently.

Create the /archive directory.
```
[root@servera ~]# mkdir /archive
```

Discover the UUID of the /dev/vdb1 device. The UUID in the output is probably different on your system.

[root@servera ~]# lsblk --fs /dev/vdb
NAME   FSTYPE FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
vdb
└─vdb1 xfs                881e856c-37b1-41e3-b009-ad526e46d987

Add an entry to the /etc/fstab file. Replace the UUID with the one that you discovered from the previous step.
```
...output omitted...
UUID=881e856c-37b1-41e3-b009-ad526e46d987 /archive xfs defaults  0 0
```
Update the systemd daemon for the system to register the new /etc/fstab file configuration.
```
[root@servera ~]# systemctl daemon-reload
```
Mount the new file system with the new entry in the /etc/fstab file.
```
[root@servera ~]# mount /archive
```

Verify that the new file system is mounted on the /archive directory.

[root@servera ~]# mount | grep /archive
/dev/vdb1 on /archive type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)

Reboot servera. After the server rebooted, log in and verify that the /dev/vdb1 device is mounted on the /archive directory. When done, log out from servera.

Reboot servera.

[root@servera ~]# systemctl reboot
Connection to servera closed by remote host.
Connection to servera closed.
[student@workstation ~]$

Wait for servera to reboot and log in as the student user.

[student@workstation ~]$ ssh student@servera
...output omitted...
[student@servera ~]$

Verify that the /dev/vdb1 device is mounted on the /archive directory.

[student@servera ~]$ mount | grep /archive
/dev/vdb1 on /archive type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)

Return to the workstation machine as the student user.

[student@servera ~]$ exit
logout
Connection to servera closed.
[student@workstation ~]$

Finish

On the workstation machine, change to the student user home directory and use the lab command to complete this exercise. This step is important to ensure that resources from previous exercises do not impact upcoming exercises.

[student@workstation ~]$ lab finish storage-partitions

This concludes the section.

Discuss Red Hat System Administration II

Go to community

Is It possible to reset root password when the system is on multi-user.target?

jennifer1987

27 lip 2023

Hi thereWell, i have a question, Is It possible to reset root password when the system is on multi-user.target? I was not be able to found a foro o some information related with this and another question that I have, If the grub menu dont show up, is it posible to reset the root password?

991

Red Hat System Administration II (RH134)

Haley_Ruccio

21 lip 2023

Build the skills to perform the key tasks needed to become a full-time Linux administratorRed Hat System Administration II (RH134) is the second part of the RHCSA training track for IT professionals who have already attended Red Hat System Administration I. The course goes deeper into core Linux system administration skills in storage configuration and management, installation and deployment of Red Hat Enterprise Linux, management of security features such as SELinux, control of recurring system tasks, management of the boot process and troubleshooting, basic system tuning, and command-line automation and productivity. This course assumes that students have attended Red Hat System Administration I (RH124).Experienced Linux administrators who seek rapid preparation for the RHCSA certification should instead start with RHCSA Rapid Track (RH199).This course is based on Red Hat Enterprise Linux 9.0.Course summaryInstall Red Hat Enterprise Linux using scalable methodsAccess security files, file systems, and networksExecute shell scripting and automation techniquesManage storage devices, logical volumes, and file systemsManage security and system accessControl the boot process and system servicesRun containersAudience for this courseThis course is geared toward Windows system administrators, network administrators, and other system administrators who are interested in supplementing current skills or backstopping other team members, in addition to Linux system administrators who are responsible for these tasks:Configuring, installing, upgrading, and maintaining Linux systems using established standards and proceduresProviding operational supportManaging systems for monitoring system performance and availabilityWriting and deploying scripts for task automation and system administrationRecommended trainingSuccessful completion of Red Hat System Administration I (RH124) is recommended.Experienced Linux administrators seeking to accelerate their path toward becoming a Red Hat Certified System Administrator should start with the RHCSA Rapid Track course (RH199).Take our free assessment to gauge whether this offering is the best fit for your skills.Technology considerationsThere are no special technology requirements.This course is not designed for bring your own device (BYOD).Internet access is not required, but is recommended to allow students to research and access Red Hat online resources.

Welcome to the Red Hat System Administration II (RH134) group in the Red Hat Learning Community!

Deanna

18 lip 2023

We are excited to launch a space dedicated to the Red Hat Training course Red Hat System Administration II! To gain the most value from this group - click the "Join Group" button in the upper right hand corner.We encourage group members to collaborate in this group to discuss topics, ask questions, share best practices and tips, provide course feedback, and share their accomplishments as it relates to RH134.Read more about Red Hat System Administration II here.

417

Revision: rh134-9.0-fa57cbe