Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [uuid]

59 questions
2
votes
0 answers

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 the same UUID, I don't have a clue where these…
Peter
  • 21
  • 1
2
votes
2 answers

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 for doing this with the unique-id-format directive.…
zaphoyd
  • 123
  • 3
1
vote
1 answer

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 for the future, I would like to find out how to…
bento
  • 13
  • 2
1
vote
1 answer

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 easy to use receipe to get back to device-names…
Nils
  • 7,695
  • 3
  • 34
  • 73
1
vote
1 answer

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 me@example.com Since upgrading the kernel from a 2.6.x to some 3.x, I…
davide
  • 162
  • 8
1
vote
2 answers

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 UUID, say 32c8da8b-e6d5-9a85-5cfc-1a8b59535263.…
coanor
  • 191
  • 2
  • 6
1
vote
1 answer

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 changed. I always refer partition in /etc/fstab using…
user120858
1
vote
0 answers

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 single SATA drive with no RAID and no network…
qid
  • 111
  • 4
1
vote
1 answer

Unable to create ramdisk after updating to 2.6.32

I've upgraded one of our servers (debian lenny) from backports. It upgraded the kernel to 2.6.32-trunk-amd64, and switched the disk access to UUID. Everything works fine, however, /dev/ram0 no longer gets created and I'm unable to see it in…
ben lemasurier
  • 768
  • 6
  • 21
1
vote
1 answer

SVN Merge two reposiories - what about the UUIDs?

This is my scenario: Originally had two seperate repositories, I need to merge these into one repository. I don't care too much about the history in these repositories. I created a new repository and can import the repositories no problem. The issue…
user36083
  • 11
  • 1
1
vote
1 answer

How do I identify disk partitions from volume/UUID in Ubuntu File Manager (like /dev/sdx)?

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 "disks" application. I like to operate on the partition, like move or resize it. How do I…
Jan Hus
  • 117
  • 4
1
vote
1 answer

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 Dec 14 15:36:44 UTC 2021 x86_64 x86_64 x86_64…
agatek
  • 31
  • 5
1
vote
1 answer

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 me UUID=8aa6c0d2-c18e-4606-b1da-f5f1f7617f00…
abkrim
  • 417
  • 7
  • 18
0
votes
1 answer

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 other is the C: drive. Why might this be the…
Arcanum
  • 101
  • 1
0
votes
1 answer

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 external data storage. The Ganeti master (host) and…
Max
  • 143
  • 1
  • 6
1 2
3
4