Questions tagged [uuid]

A universally unique identifier (UUID)

120 questions
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What is the real benefit of using UUIDs?

I have always seen people discuss using UUIDs in hard drives instead of /dev/sdN. What is the real benefit of using a UUID? Is it faster, more reliable, easier to remember (ha lol no), what? And, isn't it possible to change a UUID? Is there a way to…
Kaz Wolfe
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How are the values of $UID generated?

On executing 'echo $UID' in terminal, the output is: 0 for root user 1000 for admin(in my case) 119 for guest user. How are these values generated?
Vahni
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Ubuntu doesn't boot after adding a bootflag to the Windows partition

I have Ubuntu 10.10 installed on one (physical) hd and on the other one Windows. On both drives grub is installed to boot both operating systems. When I wanted to install SP1 for Win 7 I had to add a bootable flag to the partition from which Windows…
Nils
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When I mount a certain partition under the DISKS app it adds a "1" to the mount point UUID?

I do not understand why when a certain hard drive partition is mounted using the DISKS utility app it adds a "1" to the UUID for the mount point location. When I do this on another partition of the same drive when it mounts the UUID remains…
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I Need To Adjust My UID

In short: If I change my UID what are the complications I can run into? In context: I am trying to share files between two Ubuntu machines using NFS. Currently each machine has it's own username, but the same UID. For arguments sake, machine 1 has a…
john smith
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Permissions - Listing uid

Two part question: What is a world-writeable directory and file? I'm looking for a script that would display the directories on all partitions of a server, that are not owned by root or a system account. In our environment, all world-writable…
rob
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Tried to fix loops in kernel upgrades that said couldn't find UUID and fix with RESUME but always gave me generic kernel instead of updating it

I had updated my Kubuntu 23.04 to 23.10 and though I was told that in everyday updates, that the system not finding the right UUID is normal (which I never understood because why make new kernels/kernel headers if it is just going to be cycling 3 or…