Questions tagged [uuid]
The uuid tag has no usage guidance.
59
questions
0
votes
0
answers
71
views
How to get invitee´s information who schedules event at Calendly in GTM data layer
I´ve created a html site with a Calendly widget embedded to allow clients to scheduled meetings with me. Webpage is being tracked by Google Tag Manager, which is set up to listen events each time a ...
0
votes
1
answer
50
views
When creating a linux server in Azure, is it possible to declare the UUID somehow?
We are currently doing fact finding in microsoft azure. For one of our software stacks, having known UUIDs is important (defined as the output from dmidecode|grep UUID).
In virtualbox/vagrant, it is ...
- 2,737
0
votes
0
answers
112
views
How to transfer a Minio bucket without loosing version IDs
I have a MinIO bucket that I need to transfer from one server to another.
mc --insecure mirror source/my-bucket dest/my-bucket
This MinIO bucket is versioned, and I use the MinIO version UUIDs as ...
- 101
2
votes
1
answer
341
views
Is it better to generate "UUID" and "TIMESTAMP" within the NodeJS application or using the database built-in functions?
I am writing a TypeScript-NodeJS application and want to handle object ids and created_at TIMESTAMP within the NodeJS application, instead of using MySQL or Cassandra built-in UUID or TIMESTAMP ...
- 377
1
vote
1
answer
232
views
How do I identify disk partitions from volume/UUID in Ubuntu File Manager (like /dev/sdx)? [closed]
Ubuntu "file manager" lists disk partition as "104 GB volume". "Properties" gives more information, but uses the disks UUID.
"Open on disks" just starts the &...
- 117
0
votes
0
answers
547
views
I accidentally created a GPT label on a sdb that already was in a VG : WARNING: Couldn't find device with uuid CdlY5k-IynC-hYTX-hH3h-HaLC-KAqy-n4h38q
I accidentally created on GPT label on /dev/sdb on a production server which belonged to the ubuntu-vg.
Before the change :
$ df -h /
Filesystem Size Used Avail Use% Mounted ...
- 369
0
votes
1
answer
503
views
Is there a faster implementation of uuidgen from bash?
I am using a bash script and using the command uuidgen to generate UUIDs. However it is quite slow when invoked in a loop. Are there any alternatives I can invoke directly from bash?
I'm guessing the ...
- 5,358
1
vote
1
answer
1k
views
zfs does not recognize its own physical disks
I have repeating problem with the zfs pool where zfs stops recognizing its own, properly labeled (or so it appears) physical devices.
Ubuntu 20.04.2 LTS
5.11.0-44-generic #48~20.04.2-Ubuntu SMP Tue ...
- 31
0
votes
1
answer
89
views
What happened to Data::UUID in SLES?
I have a Perl program with tradition (i.e. I use it over 10 years), but today I realized that it cannot find Data::UUID any more.
I also tried to install a corresponding package from the SLES software ...
- 366
3
votes
1
answer
1k
views
qemu does not give by-id symlinks for drives by UUID in linux guest
I am trying to get my drive to show up in QEMU guest virtual Linux machine.
desired behavior:
$ ls /dev/disk/by-id/
ata-CT1000MX500SSD4_XXXXXX
Current behavior returns nothing:
$ ls /dev/disk/by-id/
...
- 247
1
vote
1
answer
4k
views
I can't mount with mount -a for error wrong fs type, bad option, bad superblock but I can mount manually
I usually use UUID to mount my devices, because I use a lot of external ones and so I control it better.
But when I want to mount partitions formatted with XFS I have problems
Generally this works for ...
- 416
2
votes
1
answer
3k
views
linux + disk apears from lsblk but blkid not give the UUID
we have rhel 7.6 server with sdb and sdc and sdd disks
the machine is physical machines with disk of 1.7T each of them
we notice the sdd disk displayed from lsblk as
lsblk | grep data
sda ...
- 49
0
votes
2
answers
6k
views
After changing a system disk partition, system won't boot, goes into "Dracut Emergency Shell"; how do I get it to boot?
Background
I had a new system that I'd spent a lot of time configuring the software on to perform all manner of services and then discovered the drive was potentially flaky. So I decided to replace ...
- 1,226
2
votes
0
answers
76
views
duplicate block device and UUID
Today I ran fsck on two partitions of our Ubuntu 16.04 server. Fsck has fixed various problems and afterwards I rebooted the server. After rebooting there were duplicate block device assignments with ...
- 21
2
votes
2
answers
2k
views
Can HAProxy generate a UUID based unique connection id?
I have an HAProxy load balancer that I would like to use to tag requests with a unique id (X-Unique-ID header) so that I can correlate events between logs in multiple systems.
HAProxy has a feature ...
- 123
0
votes
1
answer
92
views
Almost the same UUID for two different drives
While running the mountvol command on Windows, I see that two of my drives have almost the same UUID, differing only in one byte in the 8th hex character. One of those is not mounted to anything; the ...
- 101
0
votes
1
answer
388
views
UUID mapping to new installed nextcloud
I have a question about to the migration of data to a new nextcloud installation.
I have a one node google’s Ganeti cluster with multiple VM’s, nextcloud and the backup VM’s are the only VM’s with ...
- 143
2
votes
1
answer
2k
views
Why is UUID missing after creating ext4 filesystem on RHEL7 ec2 instance
I'm using Ansible to configure a server. This server is running on AWS Ec2 and I'm attaching to it four EBS drives.
When I run my ansible playbook it will fail about 50% of the time. The failure is ...
- 253
1
vote
1
answer
561
views
What replaced vol_id in Debian 9.x "stretch"?
I was reading this link and tried the vol_id command. From my research, it was part of the udev package, and I see it was removed long ago. What replaced vol_id in Debian 9.x "stretch"? As a bonus ...
- 13
3
votes
1
answer
434
views
in which cases it will be problematic to configure UUID in fstab
We are thinking about to change all Linux fstab configuration to work with UUID
instead the current configuration
Some of the disks are with non RAID and some of the disks are with RAID10
I searched ...
- 461
2
votes
1
answer
1k
views
UUID on copied EBS snapshot
Is the UUID of a copied EBS snapshot different to the original?
In mounting an EBS volume via the fstab in an EC2 instance and if it's a copied snapshot, it appears to be the same UUID?
Is this ...
- 309
1
vote
1
answer
8k
views
How to change grub2 in CentOS/RHEL7 from UUID to old style device?
With CentOS/RHEL 7 there are a couple of changes (compared to CO/RHEL 6).
One of it is the use of grub2 instead of grub.
Per default the OS seems to use a UUID to "find" the boot-device.
Is there an ...
- 7,705
5
votes
1
answer
3k
views
Refresh uuid of physical device
I'm trying to clone a LUN on a server and present it to the same server and am running into UUID oddities. I don't create partitions on the LUN, just create a PV and then LVM on top of that so I can ...
- 51
4
votes
2
answers
16k
views
Change Instance UUID for VM in ESXi
Background
I'm running ESXi 6.0.0 in free mode. I created one VM and then copied its files to another folder in the datastore to create the next machine (almost like a template). I wound up with ...
- 188
7
votes
2
answers
3k
views
Is there a way to find out what cluster or vcenter an ESX server is on?
I need to be able to identify which cluster or vCenter instance some ESX servers are part of, but need to get this information directly from the ESX server itself. Is this information available in ...
- 171
0
votes
1
answer
285
views
Send proper UUID over tcp
I have a small ingest TCP server that should accept a device UUID as a first message, which is only 16 bytes. I'd like to test this manually from terminal, but sending a string won't work, since it ...
- 103
1
vote
1
answer
987
views
Proper way to identify member devices in mdadm.conf
My current mdadm.conf looks like:
$ cat /etc/mdadm/mdadm.conf
DEVICE /dev/sdb1 /dev/sdc1
ARRAY /dev/md0 metadata=1.2 spares=0 UUID=357ff7cc:55e78d18:9fc7917b:f5b253f2
MAILADDR [email protected]
Since ...
- 162
1
vote
2
answers
2k
views
Is disk's UUID a good identifier for disk?
My tool working among 100 disks, some of them may attach or detach from the server during the tool running. I want to use disk's UUID as disk's id, and I got the question: If some disk disk_1 got a ...
- 191
3
votes
0
answers
148
views
Does the LVM DM UUID contain any metadata?
For example within the name listed below is there any metadata within the name, eg based on server serial number or date created or such:
dm-uuid-LVM-...
- 53
0
votes
1
answer
1k
views
Identifying RHEL disk other than by UUID in /etc/fstab for Disaster Recovery from another site
For our disaster recovery setup there is a set of disk which are replicated from our production site to the disaster site. On the production site the RHEL servers have /boot filesystem setup on disks ...
- 53
0
votes
1
answer
60
views
How are BLKIDs Assigned?
Suppose I have a situation like I have installed /etc and /boot in two separate partition which belongs to an USB device , and the rest of the system / and /home in the HDD. Now my question is I need ...
- 103
6
votes
1
answer
7k
views
How to reference an NFS share by UUID in the client's /etc/fstab
I have the following NFS export on my server, with fsid set to a newly generated UUID.
/etc/exports:
/mnt/data client(ro,fsid=b07f5af6-6b10-11e3-b4c1-00248115724d)
I would then run exportfs -rav ...
- 764
5
votes
1
answer
5k
views
Will UUID be the same if a disk moved from one machine to another?
While in Linux every disk got a UUID.
I just wondering will the UUID be the same if I moved the same disk from one Linux box to another?
Is it the same UUID in different machines with the same disk?
...
- 229
3
votes
2
answers
5k
views
VMware: identifying source template
Is there a way to identify a parent template for VMs. I've got a few VMs created from different templates and I need to confirm source template.
I've tried blkid and dmidecode -s system-uuid but it ...
- 3,148
0
votes
1
answer
543
views
fsck.ext3: Unable to resolve UUID but gparted shows the correct UUID
I'm running CentOS6 on a PowerSpecG211 with a RAID level 1 array (2x2TB) and a couple of SSD's
Yesterday afternoon the partition for /var ran out of space while I was doing some stuff in mysql and ...
- 113
1
vote
1
answer
1k
views
Why /dev/disk/by-id/ change after a suddenly server power-off?
I'm management a server that in /etc/fstab have references to some partitions using /dev/disk/by-id/DISK_ID-partN.
The server suddenly power-off and DISK_ID part of /dev/disk/by-id/DISK_ID-partN ...
user120858
7
votes
3
answers
11k
views
is there any advantage mounting an LV by UUID instead of by path?
I know I can specify mounts in fstab by either putting their path (like /dev/sda1 or /dev/mapper/myvg-logicalVolume1) or by fs label (LABEL=root) or by UUID (UUID=1234-5678-...).
I see a clear ...
2
votes
1
answer
4k
views
Are disk partition labels or UUIDS stored in the partition area itself or in some other area of the hard disk? [duplicate]
Are disk partition labels or UUIDS stored in the partition area itself or in some other area of the hard disk?
e.g If the dd command is used is used to copy the raw partition image from one partition ...
- 1,632
4
votes
2
answers
2k
views
Converting Debian fstab to use UUIDs via linux-base?
We have a few Debian 5 systems that are still using /dev/hda in the fstab. We'd like to covert them to using UUIDs. This is supposed to be done automatically via the "linux-base" package (postinst), ...
- 41
2
votes
2
answers
3k
views
Change LUKS UUID (without cryptsetup > 1.2)
According to the cryptsetup changelog (1.2.0):
Allow explicit UUID setting in luksFormat and allow change it later
in luksUUID (--uuid parameter).
My problem is that the current Debian ...
- 213
0
votes
2
answers
10k
views
how to know what is disk uuid for md raid1 and hdparm?
ive got md0 (raid 1) array and want to make write cache off on them during system boot (ubuntu 12.04 server).
md0: /dev/sda /dev/sdc
blkid:
/dev/sda: UUID="3e502de5-696d-f4b4-470e-XXX" TYPE="...
- 1,517
17
votes
4
answers
22k
views
is it possible to simultaneously mount 2 LVM volumes that are exact copies of each other (same UUIDs)?
I have cloned (using dd) the hard drive in a live system onto several multiple backup hard drives. The root partition in the live system is a LVM volume. The backup copies are intended to be drop-in ...
- 273
2
votes
1
answer
2k
views
Is it possible to load new PostgreSQL libraries without restarting the server?
I need support for the uuid library in my Postgres server (a 64-bit Amazon Linux AMI). I've installed the uuid and uuid-pgsql packages. Is it possible to load the library without restarting the ...
- 251
5
votes
2
answers
6k
views
Repurposed disk - Linux blkid command returns incorrect information
I'm working with an SSD drive removed from a VMware ESXi installation. I'm trying to reuse the disk in an existing Linux installation (CentOS 6.2). The drive sits behind an HP Smart Array P410 RAID ...
- 197k
1
vote
0
answers
521
views
Imaging LVM-based Linux system to new computer: UUIDs change?
We are attempting to use Acronis TrueImage to copy the hard drive from one standalone Red Hat Enterprise Linux 5.5-based computer across to two others as part of a production operation. We are using a ...
- 111
-3
votes
4
answers
4k
views
How to check if UUID generated is correct? [closed]
My company get custom made motherboard from a vendor. Recently, we requested them to put UUID in our SMBIOS. They did it for us. According to them, they use a program to generate UUID Version 5 (SHA-1 ...
- 117
9
votes
3
answers
22k
views
LVM: regenerate a UUID?
I have some virtual machines which were clones of the same original disk image, which contained some LVM volumes. When I clone these, I end up with multiple LVM volumes (albeit on different hosts) ...
- 1,400
14
votes
7
answers
14k
views
How to create a randomly keyed, encrypted swap partition, referring to it "by-uuid", on Debian?
It is sensible that if you have any sort of block device encryption implemented on your GNU/Linux system, to encrypt your swap partition too, as any decrypted data may be written in cleartext at any ...
- 241
7
votes
4
answers
6k
views
How to get the mount point of flash drive by using uuid?
I am beginner in ubuntu linux and i need to write simple bash script, that can identify necessary flash drive(which contains only one vfat partition) using uuid of this partition, and get the mount ...
9
votes
2
answers
10k
views
Change the UUID of a VHD
How can I change the UUID of a VHD-file?
My problem is that VirtualBox won't accept the VHD-file if it has already been added. But I am moving VHD disks between work/home and cloning them (and ...
- 674