How do I change my UUID?

How do I change my UUID?

Manually changing the UUID of a virtual machine

1. Power off the virtual machine whose UUID you are going to change.
2. Edit the virtual machine’s configuration file (. vmx ).
3. Search the file for the line:
4. Enter the new UUID in this format.
5. Save and close the configuration file.
6. Power on the virtual machine.

How do I change the UUID for boot on cloned system?

4 Answers

1. turn on your machine, and get to the GRUB menu.
2. hit the e key to enter edit mode.
3. use the arrow keys to locate “quiet splash”
4. find the UUID=xxxx at the beginning of that same line.
5. change the entire UUID=xxxx portion to /dev/sda1.
6. control + x or F10 to continue to boot after the edit.

How do I change the UUID of a LVM partition?

how to change uuid of lvm partition:

1. create a rescue vm (same CentOS version your vm is running/template, that used to work fine/tested)
2. power down the vm with the broken filesystem.
3. clone the broken vm and name it “vmname-broken” (so you will get one consistent vdi virtualbox harddisk file, remove all the snapsnots)

How do I change my UUID XFS?

You must unmount the file system before changing parameters with the xfs_admin command. With the file system unmounted, you can change the following parameters: -L [label]: Use this option to change the file system label. -U [UUID]: Use this option to change the file system UUID.

When to use time based UUID in tune2fs?

See uuidgen (8) for more information. If the system does not have a good random number generator such as /dev/random or /dev/urandom, tune2fs will automatically use a time- based UUID instead of a randomly-generated UUID.

How to manually change the UUID of a virtual machine in?

First, shut down your virtual machine that you want to change the UUID on. Edit the .vmx file of the virtual machine that you are changing the UUID on. Enter your new UUID, it has to be formatted as below, make sure to Include the quotation marks.

How do I change the UUID of a partition?

Now that you know how to retrieve your current UUIDs, let’s talk about how to change a partition’s UUID. Use the following tune2fs command to change the UUID of a partition. In this example, we will change the UUID for partition /dev/sda1. Then, confirm the changes with one of the commands from the previous section.

How to use tune2fs to check filesystems?

By default, most systems will automatically attempt to check your filesystems after a defined time limit. This may be the number of times a filesystem has been mounted or literally a set time. To display the current settings we can use the “tune2fs” command and grep for ” interval” and “count”.