Questions tagged [uuid]

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grub-mkconfig generates errant grub.cfg that boots the wrong partition (UUID)

Upshot: Grub v2.06 generates a grub.cfg that boots the wrong partition Cause: different bootable partitions were assigned the same root=UUID in grub.cfg in the "linux" boot specification. ...
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Windows UUID Does not match motherboard (digits are shuffled)

I have a few laptops with Windows 10 installed and I can use (Get-WmiObject -Class Win32_ComputerSystemProduct).UUID in PowerShell to get each machine's UUID. What's interesting is that the UUID I get ...
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How to generate a column of unique IDs (UUIDs) in LibreOffice Calc?

How to insert a column of unique codes (UUIDs) in LibreOffice? If that's not possible with LibreOffice itself, how could one generate UUIDs in a way so that they can be simply copy and pasted into a ...
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Fix For Blanked Out UUID On Luks Encrypted Drive?

Problem: When I mount a Luks Encrypted drive, the drive mounts, but I can't access the files. The drive is the root drive. It has ElementaryOS installed on it. It booted fine, until after doing some ...
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How to make two laptops running Windows 10 use the same user id for sharing files?

I have several Windows 10 laptops with a (Sabrent) USB disk cloner (and 2.5" (SATA?) disks I can insert into it) that I plug into each to move partitions back and forth and I want essentially one ...
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Is it related to Windows 10 update?

My Windows 10 wasn't updating so I checked the UUID of BIOS which was all zeroes. Also, I used this code snippet to check it in Windows itself. wmic path win32_computersystemproduct get UUID. And I ...
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Could UUID be used as IPv6 address instead of the current format?

Both IPv6 address (eg. 2001:0db8:85a3:0000:0000:8a2e:0370:7334) and UUID (eg. 123e4567-e89b-12d3-a456-426614174000) are 128-bit numbers. Could the Internet Engineering Task Force (who created IPv6) ...
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System UUID got nulled in BIOS

My HP laptop was working fine before I tried installing MacOS in it. I got success in installing MacOS Big Sur where I changed the UUID in the config.plist. But after uninstalling it (I just deleted ...
6 votes
2 answers
17k views

Module not found: Can't resolve 'uuid/v4'

I am a beginner in React programming and I was following this tutorial in Youtube: https://youtu.be/hQAHSlTtcmY and everything went well until it was required to install uuid library and after that ...
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1 answer
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UUID in Windows

I'm searching for a some sort of unique windows/machine-internal ID which can be read using "CMD". I found the UUID/GUID which can be read like this: wmic csproduct get uuid I couldn't find a proper ...
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Is a Windows 10 pro sticker OEM or retail?

In contacting the seller of a PC, they wrote this about the license: It will come with Windows 10 Professional installed and activated. There will also be a Windows 10 Professional license ...
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What happens to the license when a Windows VM is deleted?

I'm considering purchasing a Windows 10 PC, but would probably want only to run Windows in a VM on the original hardware. However, it's not inconceivable that I might delete the VM, or even format ...
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How can I find the UUID for network cards?

It's easy to see them in use on, for example, a modern Fedora Core Server - like on version 30 — in the network configuration scripts found in the /etc/sysconfig/network-scripts directory. Okay, I ...
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Why do vfat partitions have a special GUID/UUID format in GUID Partition Tables?

According to the Wikipedia article on the GUID Partition Table, the partition GUID's reside in the Partition entries (LBA 2-33) just after the Primary GPT Header at the beginning of the volume. As ...
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No UUID for partition when partitioning a new disk

I am working on partitioning a new disk, on which nothing is stored yet, so I also need a completely new partition table, etc. To try doing this, I first made a GPT partition table and then assigned ...
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1 answer
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What part of the Windows 10 SDK do I need to install to get uuidgen?

I would like to install uuidgen, which I have read comes with the Windows 10 SDK. When I go through the installer, there are a lot of parts I can choose, and I don't want to install 2.9 GB of stuff I ...
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mkfs. any way to personalize the uuid generation?

Running mkfs.<type> [...] generates a File System and its UUID. any way to personalize it? In a fashion like "not generate UUID with numbers '4' and '5' or letters 'b' 'c' ".
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How does Windows create disk partition volume GUID's and why do they very often end in 6963 - especially for C:\ partitions?

I'm trying to determine, how Windows creates the GUID for a given disk volume. What are the various components / sections of a given volume GUID, and what is each section referring too, in a typical ...
1 vote
1 answer
205 views

Assign a device filename by UUID?

I have a system with multiple drives installed. I can see a list of all drives along with their UUIDs and labels using the blkid command (omitting some lines for conciseness): root@ubuntu:~/avl# ...
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Put the text content of a website into a variable vba Excel

This function is wrong: Function UUID() As String UUID = Workbooks.OpenText("https://www.uuidgenerator.net/api/version1") 'Compile Error: Expected Function Or Variable End Function What is the ...
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1 answer
578 views

Disk UUID from blkid output disappears

I'm experiencing a weird situation on RHEL-7. I create a device mapper (crypt) over a disk partition and then copy data (bytes) from disk partition to mapper. The blkid output has two entries for the ...
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1 answer
742 views

UUID fstab configuration in virtual machine ( VMware )

we have physical machines as HP or IBM blade machine and we set UUID in fstab on these physical machines but in case we use VM ( virtual machine , ) is it necessary to defines UUID in fstab on ...
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Batch-scripting: Get network connection UUID

In short: What I need is a way to find UUID of network connection "xyz" from a batch-file. I'm trying to setup a script that will place a scheduled task on the current user. I intend to send this ...
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33 votes
5 answers
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How to change vfat partition UUID?

How do I change the UUID of a vfat partition? For ext2 / ext3 / ext4, this is done with a simple: tune2fs -U <new-uuid> /dev/<partition> Is there a similar command for vfat partitions?
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Virtual Machines and UUID changing

Where I work, we are attempting to implement a VM cloning solution for some of our machines. We have a piece of software that needs to be on the cloned image. When I clone the VM the software throws ...
2 votes
1 answer
682 views

Creating UUID on Linux Command-Line

What's the latest solution to create a random UUID in up-to-date Linux/Ubuntu? The answer here is rather out-dated.
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UUIDs: considerations for changing n characters of a version-4 to a word

36 character UUIDs are awesome. But my intuition is that in my personal, home-use, I do not need all the uniqueness that 36 characters provide. But I may not be thinking of all the situations in which ...
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1 answer
1k views

How to get serial number or UUID from MTD device?

I have an embedded device with MTD device over NAND flash. Is it possible to get its serial number or UUID? I thought there might be a solution similar to getting UUID of hard drive but I didn't find ...
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15 votes
1 answer
30k views

How can I fix "uuid/uuid.h - No such file" error in CentOS

I am running CentOS 7 (64 bit). I am trying to build a project and I am getting this error. fatal error: uuid/uuid.h: No such file or directory #include <uuid/uuid.h> ^ ...
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Is UUID of a disk an attribute of the disk or system generated?

I am trying automate a task of syncing particular file ext on dozen of linux systems (not in same network) on a external HDD. So logically first part in the task would be to check if the disk is ...
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Windows 10 will not boot with source of clone attached

I cloned a windows 10 installation from a 1T HDD to a 500G SSD using clonezilla. Everything is fine as long as I don't attached the HDD drive that I used as the source of the clone. Here is what I ...
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Trying to find the UUID of a USB flash drive using diskutil vs system_profiler

I am trying to get the Volume UUID of a USB flash drive using the command line on a Mac. I tried using: system_profiler SPUSBDataType And I get the Volume UUID of two out of the three USB flash ...
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2 answers
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How to recreate encrypted dm-crypt/LUKS partition with predefined UUID on Linux?

I have / and swap area of Ubuntu 14.04 LTS (and Linux Mint 17.1 LTS) encrypted in dm-crypt/LUKS. / and swap area reside in /dev/mapper/UUID_1 and /dev/mapper/UUID_2. Is it possible to recreate the /...
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Does btrfs-convert change the disk's UUID?

I'm thinking of converting my / from ext4 to btrfs. Will the UUID change?
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1 answer
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Change UUID under Linux?

I need to create and assign a new UUID to an ordinary disk partition under Linux. What tools are available and how do I use them?
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Find UUID under Linux?

I need the UUID of a disk partition under Linux. The partition is mounted but does not show up under ls -l /dev/disk/by-uuid as can happen when duplicate UUIDs exist, for example, following ...
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1 answer
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Why does Ubuntu mount the wrong partition as root?

I am messing around with a problem of Ubuntu mounting a backup of my root partition residing on a different disk as / instead of the real one. I think the problem has been triggered by a clash of ...
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2 answers
12k views

How do I permanently reset the UUID of an LVM partition?

A (dd cloned) backup of my boot partition left me with duplicate UUIDs. blkid shows: /dev/sda1: UUID="32579810-0388-416d-bb49-7031ac2c2975" TYPE="ext4" ... /dev/mapper/raidgroup-osbackup: UUID="...
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Transferring Linux OS from one drive to another with different partitions

First of all, some related questions: How to move from one drive to another that's a different size? What utility can move my Windows boot partition over to another hard drive? My situation is as ...
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Is there a way to get host Hyper-V UUID from linux gest?

I have a CentOS 6.4 runing on Hyper-V VM. If I export the VM to other Hyper-V server, the UUID keeps the same. Is there a way to avoid this, or use other identifyer to know that the host hardware have ...
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How to edit PostgreSQL tables with a uuid primary key using IntelliJ's database Table Editor?

I have hooked-up PyCharm with my PostgreSQL database. All of my tables have a uuid column as their primary key. When I attempt to edit a row's value, I get the following error: [2014-03-05 17:31:08] ...
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Mount by UUID or LABEL

In Linux it is possible to mount a device (disk) by UUID or label. I have used UUID for a while mainly because I was picked up a discussion on IRC that mounting by label was a really horrible idea. I ...
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1 answer
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UUID and Drive Cloning

When cloning a drive (using dd), will the UUID's for each partition change, or are they hardware specific? or does cloning it preserve the UUID as well? What happen if a system detected two devices ...
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How to rename /dev/sdax(partitions) in Linux

I made a partition like /part on my machine with some important data... But I can't stand the name of it... I want a clear solution to resolve it and change the name of it to for example /test... ...
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What is system uuid on windows and why cant it be easily changed

I was installing some software and it said that the locking criteria is the system UUID. Now I know what UUID stands for. I know they are unique and are 128 bits long. I know how to generate them from ...
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blkid not returning the correct UUID/label for drive

I have 7 drives in my server (running Debian Wheezy as dom0 for a Xen hypervisor): An 80GB system drive, 3 x 2TB drives, a 1TB drive and 2x 500GB drives. The 2TB drives are all part of an mdadm RAID ...
6 votes
3 answers
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Why Linux /etc/fstab UUIDs are case sensitive?

I recently added a line for a USB memory stick to /etc/fstab, to be able to mount it automatically, using UUID to identify the device. Before I already have several external ext4 drives that have ...
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how do I fix a wrong UUID in grub.cfg?

I run Debian Wheezy alone on my PC and I recently copied the root partition to another with rsync as I found that worked well (I also know about dd and ddrescue but they leave unusable space on the ...
2 votes
3 answers
13k views

UUID in Mountain Lion

I am trying to find my external HDD UUID in Mountain Lion but diskutil info /dev/disk1s1 returns: Najis-MacBook-Air:~ ****$ diskutil info disk1s1 Device Identifier: disk1s1 Device Node: ...
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How does one change the UUID of a Volume on Mac OS X to a SPECIFIED value?

This is similar to the question asked here: How does one change the UUID of a Volume on Mac OS X 10.6? Only difference is I want to change it to a specific value, not a random one. The hfs.util only ...