Questions tagged [usb]

Universal Serial Bus, an industry standard for serial communication.

Filter by
Sorted by
Tagged with
0
votes
0answers
19 views

Find VFAT Partition on USB bus

I have to find a way to mount the first "external" vfat partition on 250 different headless hosts via shell. It could be sdb sdb1 sdc sdc1 etc. I need the device name to mount it with ...
0
votes
0answers
23 views

How to get UDEV to create device node after device authorization?

So I'm in an environment where management wants to block use of all USB devices except for those authorized. I have two possible solutions: In a UDEV rules file, put rules for the devices we want to ...
0
votes
0answers
14 views

vmweare-esxi usb passthrough

so with vmware esxi you can plug a USB into the server and pass it through to a VM with the GUI as described in this post here: Mount USB Drive on Esxi 6.5 Host Does any one know how you can do that ...
0
votes
0answers
45 views

Read data off Apple NGFF M2

I have one of those propietary NGFF M2 SSDs found in older Macbooks. I bought a converter which is supposed to convert it to a standard NVMe. When I plug it in my Linux box only sees it as a SCSI ...
3
votes
1answer
124 views

What is the purpose of a xHCI controller while esxi6 doesn't support USB3?

When I add a virtual xHCI controller to my Linux VM on an esxi6 host, plug some USB3 device to a blue USB 3.0 SuperSpeed port on the server and connect this device to the VM, I get only USB2 speed. ...
0
votes
0answers
87 views

Slow SMB file transfers over the Internet while using USB-C

we are having an issue with slow SMB file transfer speeds over the internet when using a USB-C connected network device. Setup in use: We are using Lenovo Carbon X1 laptops connected via USB-C to a ...
-1
votes
2answers
34 views

Unplugging power bank usb safely [closed]

I have a strange question, but please bear with me. Mostly I charge a power bank via usb in my laptop. When I want to unplug it, Windows does not show a "Safely remove hardware" option and ...
0
votes
0answers
18 views

How do I stop users from printing to other users' redirected USB printers on an RDS server?

I have consulted the oracle of Google without finding anything effective. Here's the situation, we have a group of users who all have local USB printers. They connect to a RDS farm using Horizon as ...
0
votes
0answers
55 views

Broken USB Forwarding for Dexcom G6 via libvirt qemu kvm

I'm attempting to forward a USB device over from my Linux host (Fedora) to a Windows 10 guest. The device seems to be forwarded, however, Windows cannot use it correctly. Additionally, I've tested ...
0
votes
0answers
24 views

USB 3.1 Gen II - if there are two attached Gen I devices, will it allocate 5Gbps to each?

Most USB PCIe add-on cards are single chipset and the ports share the available bandwidth. Theoretically, if I have two USB 3.1 Gen I devices that each can saturate the 5Gbps bandwidth, attaching them ...
4
votes
1answer
75 views

USB for keeping data safe

I'm used to consider that USB transfers are safe for data, that is USB does not add level of unreliability to data storage. However, I read that USB is not always a good choice for data transfer ...
0
votes
0answers
22 views

Read files from an encrypted disk?

Is it possible to read from an LUKS-encrypted disk via the terminal, e.g. by booting from a live Linux system on a USB flash drive and accessing the encrypted host computer's hard drive?
0
votes
2answers
63 views

Is exFAT filesystem a good choice for USB3 HDD connected to a home NAS server on Raspbian? [closed]

I have a home NAS on Raspberry PI4 with a USB3 HDD connected. I have a variety of devices with different OSs (Linux, Win and Mac), and I'd like to be able to access that HDD from any of those with a ...
1
vote
0answers
52 views

Autofs and udev rules to restrict usb permissions to groups

I need some help trying to figure out how to restrict the reading and writing access of usb devices. There are two groups on my system: usbreaders: only should have rights to access and read the usb ...
0
votes
1answer
32 views

Possible to run a G-Technology G-SPEED Q with only 1x hard drive installed?

I picked up an old G-Technology G-SPEED Q that had had all of it's internal drives removed. It previously held 4x 2TB hard drives that it could run RAID 0 or 5 accessible via USB 2.0, Firewire 800 and ...
0
votes
0answers
26 views

DD copy fails because output device path change during copy

I'm trying to copy an external USB hard drive to another using DD. my command: dd if=/dev/sdb of=/dev/sdc conv=noerror,notrunc iflag=noatime status=progress I'm using a live debian 10 distro. ...
0
votes
1answer
570 views

Dell R230, unable to boot from USB

I have a Dell R230. I'm trying to install FreeNAS 11.3 and use an USB stick as boot medium. I tried three different USB sticks (all of which work for booting on other computers): - Kingston DTSE9 G2 ...
1
vote
1answer
163 views

MMCLI on BusyBox returns "Cannot request manual scan of devices: unsupported' - IMEI

I have a USB modem plugged into a BusyBox v1.23.2 appliance. Typically I would be able to get the IMEI number using the MMCLI command set. However when this specific card (multiple of the same card - ...
0
votes
2answers
85 views

Linux How can I find out if the server has USB2 or USB3

I have a server that I do not have documentation and I plan to buy a USB Storage Device that is USB3 and now I want to find out if the server has USB2 or USB3. I tried dmesg | grep usb [ 1....
0
votes
0answers
37 views

Control lamp from FreeBSD

I have a webcam connected to a FreeBSD server that I want to collect and email an image on a schedule via a cron job. The room it is in may not always be lit. I am hoping to find some solution where a ...
1
vote
2answers
641 views

External disk drive write performance decreases after some time. What could be the reason?

I have an external USB 3 "spinning rust" 2.5'' Harddisk. Serial number lookup at Western Digital reveals this is a model WDBYNN0010BBL, "WD My Passport (Ultra) Portable Storage, Blue". 1 TB = 931.48 ...
3
votes
1answer
1k views

How can I fix my UPS repeatedly disconnecting and reconnecting?

I'm running a nut server connected to a Tripp Lite SMART1500LCD by USB. The device is behaving unexpectedly and I can see these kernel messages: user@host:~ $ dmesg -T [Wed Dec 4 13:24:24 2019] usb ...
0
votes
1answer
33 views

Disable usb mass storage on a per user basis

We are currently trying to implement a policy that dictates that some users may use usb mass storage devices and others may not. These users can use any device available in the company. Is there any ...
1
vote
1answer
382 views

How to find out which device corresponds for /sys/bus/usb/devices/deviceN

I have a device connected to my Debian linux box, lsusb says: Bus 002 Device 005: ID 0525:a4a7 Netchip Technology, Inc. Linux-USB Serial Gadget (CDC ACM mode) In /sys/bus/usb/devices/ I have ...
1
vote
0answers
196 views

If statements in udev rules

Is it possible to make statements in udev rules via if, else or case? I imagine something like: if [ $HOSTNAME == "host1" ] then ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="", SUBSYSTEMS=="usb", ...
0
votes
0answers
85 views

usb stick “not authorized to perform”

Hello (sorry for my poor english). I have a fresh install of desktop clients linux mint 19.2 with a NIS authentication. Local users can plug usb-stick and it automount without problem. On the other ...
0
votes
1answer
46 views

Network adapter for HP ScanJet 8300

I have an HP Scanjet 8300 flatbed scanner, which comes with a USB connection. Now I would like to put it on my network rather than attached to a computer through USB, so I'm trying to find a suitable ...
1
vote
3answers
529 views

Is it possible to connect a laptop to a Linux desktop - to function as the desktop console? [closed]

I have some 30 Linux (RHEL/CentOS 7) desktops that operate as servers. Their only connections are power and NIC. Being desktops, most don't have serial ports. How can I go about using a Linux ...
0
votes
0answers
769 views

Mac OS X server - cannot add devices to MDM server

Mac OS X 10.14.4 - Server 5.8 I am trying to add devices to the server to manage them, the server is set up, the certificates as well, the Trust profile and the enrollment profiles are set, but when ...
0
votes
1answer
128 views

Dell PERC6i raid 0 single drive or USB 3.0 external, which will be faster for backups

I have an older Dell R710 for my personal home server with a pair of PERC6i raid cards in it. I have a drive array attached to one of them where the data lives on different RAIDs, the other PERC6 is ...
1
vote
1answer
836 views

Dell poweredge R640 disable USB 3.0 possible?

Everything is in the title. I want to install an old ESXI (5.5 version) on a DELL PowerEdge, but just after finishing the boot of ESXI every USB devices (Mouse + keyboard) seems to turn off and I can'...
0
votes
0answers
47 views

X-Org Server - Identify USB Unplug event

In our X-Org server setup, if the server is running and we unplug the USB Mouse then the server doesn't really do anything (no errors or warnings.) If we replug the device, even then the server doesn'...
2
votes
1answer
319 views

Is it possible to check drives SMART attributes from a USB/eSATA enclosure?

I use USB external drives on a daily basis and I would like to be able to check on their integrity. I recently happened to discover I was unable to read SMART attributes from them. I wonder if there ...
2
votes
1answer
278 views

Assign static id to usb printer

I have three usb receipt printers from the same vendor (thus the same usb vendor and product id) plugged into the same server and I need to be able to issue separate printing commands to each of them. ...
1
vote
2answers
174 views

Extremely slow writing to external USB disk

I have measured the transfer on the following disk to be 2.75MB/s: iManufacturer 2 Seagate iProduct 3 BUP Slim SL The interface is USB2 so it should be fastered than that: ...
1
vote
1answer
1k views

Use Smartcard Reader on Azure Remote Desktop

What I want to achieve: Plug a Smartcard Reader on my Laptop Connect to my private Azure VPN Use Remote Desktop to access a Server using User and Password, with Intelligent Card option and USBs ...
1
vote
1answer
169 views

Can't mount ntfs drive anymore ($VOLUME_INFORMATION attribute not found in $Volume)

I have a external hard drive with ntfs partition and it isn't accessible or mountable anymore. Last thing I did was a rsync copy to that usb drive. I still can see the ntfs partition with gnome-disks ...
5
votes
2answers
183 views

Looking for way to expose and extend 100s of USB connections from VM cluster(s)

We currently test a very large number of devices and we have one PC per 10 devices or so (we use two USB hubs per PC to break out to the devices). We have huge number of PCs and it's turning into a ...
0
votes
0answers
49 views

Cannot execute certain commands on SATA3 3.5" external USB disk

I mount a SATA3 3.5" disk with a USB to Sata3 cable. When I connect the disk, my CentOS7 recognize it: $ dmesg -T | grep USB ... [Mon Nov 5 14:38:36 2018] usb 2-5: new SuperSpeed USB device number 3 ...
0
votes
1answer
877 views

Strange USB device connection messages on /var/log/messages on Centos 7.5

I am seeing some strange USB device connect and disconnect messages in a dedicated server running CentOS 7.5. These messages appear almost every day, but they do not appear at the same time every day. ...
-2
votes
2answers
1k views

What happens if a USB Ethernet Adapter has the same MAC address as the PC's network card it is connected to?

What happens if a USB Ethernet Adapter has the same MAC address as the NIC? Is it possible for internet connection to pass through the usb-ethernet adapter succesfully or not, in that scenario?
2
votes
1answer
1k views

Can't get USB/IP to work

I have Ubuntu 16.04, and USB cash device plugged on it. I want to share this cash device through USBIP. So I plugged this device and usbip list --local Then I see my device (emphasized with bold) ...
1
vote
1answer
4k views

mount says already mounted; umount says not mounted

My Linux server (Centos 7.5) is in a strange state with USB drives. When I try to mount a partition on a USB drive to a newly created mount point I get the error mount: /dev/sdd1 is already mounted ...
2
votes
0answers
260 views

Which USB controller is device plugged into on ESXi host

I need to pass through a USB controller (not just the USB device) to a guest on an ESXi 6.7 host. Is there a way (without trial and error) to determine which controller a device is plugged into? So ...
1
vote
1answer
40 views

Serial over USB during boot

I am currently trying to debug the boot sequence of Xen, and past a certain point, the only way to do it is over a serial connection. Now, on the laptop I'm using there exists no serial port nor an ...
2
votes
0answers
387 views

Serial terminal servers that work with “serial-over-USB”

I've used serial terminal servers for a long time. Basically, these are devices that allow you to communicate with a serial (eg RS232/RS485/RS422) device over ethernet in various ways. Folks in this ...
2
votes
1answer
923 views

VMware ESXi boots to black screen with only one text line: “usb”

After rebooting my server (Lenovo System X), my ESXi instance starts to boot and then hangs up after the Yellow/Grey screen. I have a black screen, with a white "usb" on top. I found similar issue ...
1
vote
1answer
2k views

Use auto mounted USB drives in Docker container

With Ubuntu, USB drives are automatically mounted at /media/<user>/<drive> when they are plugged in. I wanted to use this to make newly connected USB drives available in a running Docker ...
0
votes
2answers
124 views

How to monitor dm-crypt on unreliable external hard disk?

I have an external USB drive, which - for whatever reason - sometimes drops out unrecoverably. Probably due to faulty cables or something. On this I have a LUKS partition. dmesg reports Buffer I/O ...
1
vote
0answers
197 views

KVM Ubuntu USB Passtrough

I currently try to add a Hauppauge DVR Tuner (USB) to a KVM Machine. Both (Host and Guest) are running Ubuntu. This is my XML Guest File: https://pastebin.com/gBvFhsXs I already tried to follow ...

1
2 3 4 5
8