Questions tagged [uuid]
The uuid tag has no usage guidance.
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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?
32
votes
10
answers
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How can I generate a UUID from the command line in Windows XP?
How can I generate a UUID from the command line in Windows XP? Something like "uuid" or "uuidgen" in Linux.
18
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1
answer
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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>
^
...
10
votes
1
answer
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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 ...
9
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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 ...
7
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3
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Motherboard missing serial number and UUID?
I have several machines I have networked together and I use information about the motherboard to uniquely identify them. This is the Windows PowerShell code I use to get it:
>> $Manufacturer = ...
7
votes
2
answers
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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 ...
7
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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 ...
7
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6
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How does one change the UUID of a Volume on Mac OS X 10.6?
Does anyone know how to change the UUID of a Volume? The background for this question is that I have a duplicate UUID issue:
I have /Volumes/OldMacHD with a UUID of XYZ. I have /Volumes/Mirror1 with ...
6
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2
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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 ...
5
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3
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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 ...
4
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1
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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 ...
4
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2
answers
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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="...
3
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1
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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 ...
3
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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?
3
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2
answers
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GRUB having problems with my sda1 UUID
I was having trouble trying to setup triple boot on my computer... (Take a look at this thread if you think it would help).
I ended up by having a GRUB menu that has Ubuntu entries and "Windows" entry,...
2
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3
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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: ...
2
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1
answer
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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.
2
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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 ...
2
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1
answer
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How to make a VirtualPC boot again on VirtualBox?
It was quite strange that after the Macbook crashed one time, VirtualBox won't start up the
Windows XP, claiming the following:
Is there a way to boot it up again? I renamed the ...
2
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1
answer
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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 ...
1
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1
answer
3k
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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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3
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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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2
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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 ...
1
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1
answer
956
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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 ...
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1
answer
1k
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When I do "uuidgen" in Unix how does it generate the ID?
When I do "uuidgen" in Unix how does it generate the ID?
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1
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1k
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Unique identifier (UUID) for a micro SD card that stays the same even after writing a new ISO image on it
I'd like to organize my many micro SD cards in a Excel table, to know what is on which micro SD card.
It's very difficult to stick a physical label on it (too small, and they always go away after a ...
1
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1
answer
873
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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) ...
1
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1
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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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1
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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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1
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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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2
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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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1
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Gparted warning: Unable to find mountpoint
I've got a working Ubuntu 8.04 system, but when I went to partition a new disk I saw a warning on my boot partition. It's the orange triangle with an exclamation point, and the error is:
Unable to ...
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0
answers
375
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Cannot update grub.cfg, Device file sys_uuid missing
using Rocky Linux 9
I modified the grub boot line with an extra kernel parameter, update grub
sudo grub2-mkconfig -o /boot/efi/EFI/rocky/grub.cfg
After reboot, i can see the boot line modification ...
1
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1
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373
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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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1
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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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2
answers
4k
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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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1
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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 ...
1
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0
answers
826
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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 ...
1
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0
answers
825
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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 ...
0
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2
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Generate Universal Unique Identifier
Is it possible to generate a Universal Unique Identifier or Global Unique Identifier (UUID or GUID) in a Windows shell script? Linux / Unix / Mac OS X have the bin utility uuidgen and I'm curious if ...
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3
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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 ...
0
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1
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571
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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 ...
0
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1
answer
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Show label over text in notepad++
I'm using uuids and I want to be able to display the name of the object linked to the uuid without looking at a lookup table. for example df953d9c-234f-4ac2-af5e-f0490b223e71 is linked to wood. is ...
0
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1
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Same UUID's for a group of ZFS drives? Are they ok?
Im trying to figure out why my two new drives which are larger than the other 6 are showing equal checksum errors. In looking into this, I noticed the UUID's are all the same. Is it normal to have ...
0
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1
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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 ...
0
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1
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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 ...
0
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1
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863
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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 ...
0
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1
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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?
0
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1
answer
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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] ...