Questions tagged [network-block-device]
8 questions
5
votes
2 answers
Where is the Network Block Device format described?
What is the format of network block device protocol? It is stated that it is simple, but I can't find any RFC or similar things that describes what client and server should send.
Vi.
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3
votes
1 answer
How to load network block device on CentOS7
I am trying to load the nbd network block device on my CentOS7 server. However, I got:
modprobe nbd
modprobe: FATAL: Module nbd not found.
It would be really appreciated if anyone could tell me the best way to have nbd module loaded. And…
Lucas H. Xu
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3
votes
2 answers
How to unsafely remove blockdevice driver in Linux
I am writing a block device driver for linux.
It is crucial to support unsafe removal (like usb unplug). In other words, I want to be able to shut down the block device without creating memory leaks / crashes even while applications hold open files…
DanielHsH
- 4,287
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2
votes
0 answers
File System Block Size while creating the File System using mkfs
I am trying to use BUSE (with NBD) to create a block device in user space. I am not clearly understanding the block access patterns when creating a file system. As shown in the example when I mount the nbd device and create a ext4 file system with a…
Sharath
- 41
- 1
- 3
1
vote
2 answers
How can I export disk image file to a remote machine using ndb-server?
I'm trying to export disk image on one machine to another machine using nbd-server and nbd-client.
On the sever side (hostname gpu) where nbd-server will run, I made an disk image using the dd command and created a file system on the image file…
user3506774
- 11
- 3
0
votes
1 answer
How to make /dev/loop0 gathered as ansible_devices
Let me try to be clearer :
ansible localhost -m setup
Is not showing any block devices :
"ansible_devices": {},
This host is using /dev/nbd0 as its root device.
Now I was wondering, for my particular needs, how I could fill this gathered facts…
wsteven
- 67
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0
votes
1 answer
Network Block Device - Receive control failed (result -32) - Kernel 3.16.0-41
When I connect to a Network Block Device (NBD) using qemu-nbd -c /dev/nbd0 /tmp/disk and disconnect subsequently without any modifications via qemu-nbd -d /dev/nbd0, I get the following error in my syslog:
Jun 17 05:40:28 os-compute01 kernel:…
Herr-Herner
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-1
votes
1 answer
mkfs.ext4 on nbd gets stuck
I am trying to mkfs ext4 filesystem on /dev/nbd0 (I am on Ubuntu)
I do not get any error msg and the command just gets stuck
sudo mkfs.ext4 /dev/nbd0
I am using this BUSE code from github: https://github.com/acozzette/BUSE/blob/master/README.md …
Noor Yag
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