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Questions tagged [device]

The tag has no usage guidance.

3
votes
1answer
2k views

Why is there both character device and block device for nvme?

I am trying to understand the configuration of nvme. But I do not understand why there are two devices: nvme block and nvme character device: crw------- 1 root root 243, 0 Dec 12 16:09 /dev/nvme0 ...
1
vote
0answers
253 views

Mounted device showing in df and /etc/mtab but missing from /proc/mounts and /proc/self/mounts. Why?

I have an ec2 instance that is booted from an ebs snapshot. The boot device is /dev/sda1. When I call mount, df -h or cat /etc/fstab I can see the device: $ mount /dev/sda1 on / type ext3 (rw) $ df -...
0
votes
1answer
466 views

symbol SSL_SESSION_set1_id_context, version libssl.so.10 not defined in file libssl.so.10 with link time reference

I am using python3.4 and everything works well as expected until i install Spirent STC (even Avalanche). These are the traffic generators and have their own PYTHONPATH to update. I just kept my ...
-1
votes
1answer
452 views

How to mount devtmpfs with mode=777?

I'm trying to use gentoo based thin client to access fusion access huawei cloud, with the following issues: CloudClient when redirecting devices to VDI virtual PC, trying to write directly into ...
0
votes
2answers
1k views

Nginx failed space when upload

I've a problem with my nginx server. He is a storage server, and when i want to upload a file (2,5G) i can show any error on my error.log 2016/02/08 03:26:24 [crit] 7843#0: *1154 pwrite() "/var/lib/...
2
votes
2answers
129 views

Unrecovered read errors on Linux RAID10 device

I have an HP DL380p Gen8 running Ubuntu 14.04 and apparently it's been having some trouble with its RAID10 filesystem for almost a month, despite everything seeming to be okay otherwise. I'm seeing a ...
0
votes
2answers
127 views

2 Lans, 1 router, need to ping eachother ip [closed]

I have 2 LANs: LAN 1 192.168.2.1/24 LAN 2 192.168.3.1/24 I have a device on tLAN 2 with IP-address 192.168.3.61. My laptop is on LAN 1 with 192.168.2.100. My final goal is to ping the device like ...
2
votes
0answers
61 views

How to turn off asking about scanner calibration in Windows 7?

I have over 12 Brother DSMobile 600 scanners and Panasonic toughbook's CF-19 with Windows 7. I'm using each toughbook with scanners from this pool. I'm always switch toughbooks and scanners. ...
1
vote
0answers
271 views

Proper Steps To Upgrade My Server 2008 R2 Machine From HHD To SSD

I'm working on upgrading a server's hard drive from a standard HHD to an SSD drive. I have cloned the drive with a program called "EaseUS Todo Backup Free 8.6" (which I think does a bunch of extra ...
1
vote
1answer
29 views

Detect which application mounted a device

On my system, from time to time there is an automatic mount/unmount of a plugged device. I guess it's done by some software on the machine. is there any way to monitor PnP mount/unmount events on the ...
0
votes
0answers
369 views

When do NFS mount major/minor device ids change?

I have a NFS folder mounted in /mnt/data: # mountpoint -d /mnt/data/ 0:25 When should I expect the major and minor device IDs to change? Reboot? Remount? Random? I know they did change at least ...
3
votes
0answers
374 views

/dev/ttyS0 in lxc container

How to set up lxc to get /dev/ttyS0 in lxc container. I add # /dev/ttyS0 lxc.cgroup.devices.allow = c 4:64 rwm into config but nothing works - If I add manually mknod in running container ...
0
votes
0answers
911 views

Unknown device showing up in network scan

I need some help finding a device that has been showing up whenever I scan my network using Spiceworks' "Inventory" scan. I can ping the device, but nslookup returns a non-existent domain, and ...
2
votes
1answer
2k views

When using nmcli, what is considered a device, an interface and a connection? What's the difference? [closed]

What are dependencies and relations between device, interface and connection in nmcli cmdline utility under linux? The below questions are asked in context of nmcli and networking in linux: Which ...
5
votes
1answer
3k views

No space left on device in spite partition is not 100% [duplicate]

I am trying to do the following on my Linux machine CentOS release 5.8 cd /var/APPstoreldap/Home touch test touch: cannot touch `test': No space left on device so I verified the partition disk ...
3
votes
1answer
5k views

watchdog service is not working because /dev/watchdog does not exist

There is a ITE8783 watchdog chip placed within my machine (OS Ubuntu 14.04.1). The kernel module it87 supports is. This module was not automatically loaded on startup. So I added it87 to /etc/modules. ...
1
vote
0answers
259 views

How to retrieve a list of disk devices from Windows Server 2012R2

In Windows Server 2012R2 Event Viewer shows error ID 15: Log Name: System Source: disk Date: 9/29/2014 3:16:49 PM Event ID: 15 Task Category: None Level: Error ...
0
votes
1answer
36 views

ISCSI device and partitions used in ISCSI client

The command list all devices including ISCSI. cat /proc/partitions Is it possible to know which device is currently used by a given target? Thanks
1
vote
1answer
735 views

windows 2012: search additional folder for device drivers

I am building servers that have loads of devices that windows can't find drivers for. I have the USB with all the drivers plugged in. I have to click each device and update it one by one manually. I ...
0
votes
1answer
796 views

How can I see which devices are used by a process?

iotop and iostat are great tools to see how much I/O is happening. But I haven't found out how these (or other) tools can show me the I/O rate per device and per process. So I'm looking for a way to ...
1
vote
0answers
371 views

mdadm confused on minor number

Recently replaced a faulty disk in my Raid 6 group. All went as expected, no problem. After getting everything rebuilt using a new /dev/sdi1 as a replacement for the failing /dev/sde1 I decided to ...
0
votes
1answer
401 views

Openvpn, 2 connections. Bind specific config to device

I use 2 connections and iproute2 with mark to route packages. But my problem is that sometimes, one connection is faster then the other and this messes up my routingtable. Is there some way, in the ...
2
votes
1answer
657 views

Remove DVD drive from device manager - command line

Is there a way through command line to uninstall the entry under DVD/CD-ROM drives in device manager? Somehow someone applied a GPO on our top level domain and it's affected a number of things, I've ...
1
vote
2answers
4k views

No space left on device

I have a vServer and I can't upload/copy files. It says "no space left on device" but I have like 130 GB on my hdd. This is what it shows on: df -h / df -h / Filesystem Size Used Avail ...
1
vote
1answer
2k views

Change USB device owner

I have a USB printer that when I connect to the computer it's owned by the user root and the group lp, and it's file permission is rw-rw----, so I have to print via apache/php script. To solve this ...
7
votes
4answers
255 views

Prevent end-users from purchasing apps on iOS

We are looking to deploy iPads from inside our organization. We want to be able to install apps for users, which can be done via Mobile Device Management. However, we do not want users to be able to ...
2
votes
4answers
612 views

an unknown ip on network

In our office we have many PCs, all of them have static IP addresses. We had a problem with one server with ip 192.168.1.10 dropping off the network occasionally. I unplugged the network cable from ...
1
vote
2answers
7k views

Refresh /dev/sdx list

I've been messing around with my storage array (in that case 2xMD3000 SAS) and between the scans/rescans/delete/add my /dev/sdx block devices are all messed up. Some of them are non existent and using ...
3
votes
1answer
8k views

Creating Persistent Drive Labels With UDEV Using /dev/disk/by-path

I have a new BackBlaze Pod (BackBlaze Pod 2.0). It has 45 3TB drives and they when I first set it up they were labeled /dev/sda through /dev/sdz and /dev/sdaa through /dev/sdas. I used mdadm to ...
2
votes
1answer
653 views

Determine which device(s) cause(s) high CPU via interupts in Process Explorer

I have a Windows 2003 server that occasionally hangs. When it hangs, I can still use it through the console, but externally, it is completely unresponsive. It won't even respond to pings. However, ...
1
vote
2answers
3k views

why i cannot start new ssh connections to remote server?

this question is not the same as others, who asked for that they cannot connect to server, the issue i have is that i cannot start more new ssh connections... now i am connected to remote server ...
3
votes
1answer
737 views

Tripwire reporting a changed /dev/char

This was in a recent Tripwire report of a Debian Linux (virtual) server: ### Attr Observed (what it is) Expected (what it should be) ### =========== ============================= =====...
16
votes
3answers
5k views

Look up manufacturer based on Mac Address?

I want to incorporate into a piece of software the ability to look up a manufacturer based on a mac address. By googling "mac address lookup" and similar, I have noticed several websites that make ...
1
vote
1answer
1k views

Multiple ethernet interfaces same IP address space

Am I allowed to have multiple ethernet interfaces on a WinXP/Win7 host, that share the same IP-subnet? Scenario: There are multiple USB adapters, that are using RNDIS (usb-ethernet-gadget) and ...
9
votes
3answers
28k views

Find information for local IP address?

We have had a BT engineer visit recently, trying to solve a problem with our IP phone system. One point they made was that we had four DHCP servers running on the network. I have disabled two of them ...
1
vote
2answers
3k views

iostat: See current usage rather than average

I need to log disk statistics (MB/read, MB/write) of block devices. As I understand, iostat shows an average value. This is not exactly what I want when I'm about to monitor a server. Is there a way ...
1
vote
0answers
856 views

linux /dev/sd? read failed

I couldn't find the answer to this anywhere, so I'm posting this in the hope it helps someone else... My scenario was linux system with an external drive that was connected (and mounted) was suddenly ...
0
votes
1answer
224 views

Aliasing/mapping a network device in Ubuntu

In Ubuntu, I have two ethernet interfaces eth1 and eth3 that I want to call "foo0" and "foo1", respectively. Basically, I want something like "ip link alias DEVICE SECONDNAME". Is there a way to do ...
1
vote
1answer
650 views

How harddisk works [closed]

Looking at how hard disk works. Found that it has a number of platters and a read/write head. But in texts it shows read/write head between each platter. Is it like that in real situation? Also when ...
2
votes
2answers
2k views

Create a general character devices pair

I'd like to create a character device which has the same properties as a standard pseudo-terminal, but that can be named in a specific name. Basically I'd like to have /dev/pts/my-unique-name instead ...
1
vote
2answers
4k views

Truecrypt fails to unmount

With a recent package and kernel update truecrypt refuses to unmount drives with device-mapper: remove ioctl failed: Device or resource busy Command failed (worked fine before) Ubuntu 10.10 I ...
0
votes
3answers
310 views

What creates /dev/stderr in FC14?

I'm wondering what creates /dev/stderr on FC14. rpm -qf doesn't show any package ownership. I've dug through the init scripts and can't find it anywhere. To provide some context, I'm creating a ...
2
votes
2answers
7k views

What is the difference between /dev/dsk and /dev/rdsk?

It appears that ZFS interacts with /dev/dsk. I have had success duplicating drive contents one slice at a time using a command similar to cat /dev/rdsk/c1t3d0s0 > /dev/rdsk/c1t4d0s0.
1
vote
2answers
5k views

how to find usb storage devices on esxi server?

We are looking at temporarily mounting an external hard disk on USB to an ESX1 v4 server from VMware. In /var/log/messages, we see the messages of the device being connected, but we cannot figure out ...
2
votes
1answer
1k views

Virtual interface statistics on Linux

I am trying to get statistics about virtual interfaces I have configured on my Linux box running Ubuntu. /proc/net/dev contains entries for lo and eth1, but I also have two virtual interfaces, lo:2 ...
0
votes
2answers
246 views

Windows 7 boot order and locations

Long story short, a program that shouldn't have been run on this machine has been, and it's created a naughty .sys file that is being loaded right after pci.sys (as determined by NBTLog.txt) I've had ...
7
votes
7answers
22k views

find out if disk is IDE or SATA

I need to find out if a disk is IDE or SATA (or anything else, maybe). I know that the device is /dev/sda, so I think it's SATA, but I don't know if I can be sure just by the name. I tried looking at ...
1
vote
4answers
122 views

switch or other device?

i want to get a network device working as a multiplexer. for example, only the data sent to port A would be forwarded to port B completely. and the data of port B have to be forwarded to port A also....
3
votes
4answers
2k views

What is the meaning of the letters in CCISS?

I know that CCISS is the name give to a RAID device that comes from COMPAQ/HP, but why this name? Does it have any meaning?
2
votes
5answers
5k views

usb device -> block device mapping on Ubuntu?

Apologies if this is a duplicate, however. I have 2 usb mass storage devices, and I need to be able to work out which physical device maps to a block device. They are not both always present, so I ...