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Questions tagged [uuid]

59 questions
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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), but for some reason it's not kicking in (perhaps…
DAM
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1 answer

/dev/disk/by-uuid not showing all disks

I am working with local storage repositories on an installation of XenServer and I am trying to use the UUID to delete a SR made in error. When I look at the disks by-id here is the output: [root@xenser111 lib]# ls -l /dev/disk/by-id total…
bsigrist
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1 answer

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 in google and find complain about using UUID for…
shalom
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PostgreSQL update problems with uuid

I am trying to run yum update on my CentOS 5.2 box and keep getting this message: Missing Dependency: libossp-uuid.so.15 is needed by package postgresql-contrib I ran yum update postgresql separately and now it's 8.3.8. I also downloaded uuid-1.6.2…
kdl
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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-7Acc13lm0nUzEWXMNDfB4vBTyjGRtEbG13lq81vVyp1RtuXc3ASRkGHkU17BufdS The reason I ask is I know in AIX…
Hanne Winter
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2 answers

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 looks like these IDs are re-generated for new…
HTF
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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/ Here is how I created my disk image: qemu-img…
posop
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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 when I mount a path to a newly formatted drive.…
Levi
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1 answer

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 correct? Is the UUID the same?
eekfonky
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3 answers

What security problems are caused by public MAC address knowledge?

What types of attacks are made possible or worse by having knowledge of a target computer's MAC address? I am planning on using a type 1 UUID generator that includes the generating computer's MAC address in the UUID. I've read that you should be…
Ryan Ahearn
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1 answer

Are disk partition labels or UUIDS stored in the partition area itself or in some other area of the hard disk?

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 to another, or even onto a different hard disk.…
vfclists
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2 answers

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 stable (squeeze) uses 1.1.3 - Is there a way to change…
vbence
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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 Postgres server? PostgreSQL version is 8.4.11.
Adam Sharp
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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 generator. 1- First of all I like to know is this a…
best_of_man
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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 8:0 0 1.7T 0 disk /data/sdc sdc …
sheffadmin
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