Questions tagged [usb]

Universal Serial Bus, an industry standard for serial communication.

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13 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 ...
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Microsoft DPM Server slow to restore backups to external USB 3.0 Hard Drive

We currently use DPM 2016 on a 2016 Windows server handle our on premise backups. This is working fine, allowing us a 30 day restore window on our critical data. The backups are primarily Hyper-V ...
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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 ...
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16 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. ...
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How to detect new USB Network Cards and call script under Windows 10?

We've a Windows 10 station that will regularly be connected to embedded devices through a USB Network adapter. The embedded device and the network adapter are "bundled" and change regularly, but all ...
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How can I configure a txqueuelen value to persist plug/unplug of USB network device?

How to configure debian to set txqueuelen of USB network device (LTE modem) after plugin? The network device is created after plugin. Debian-Testing (Bullseye)
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64 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 ...
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1answer
60 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 - ...
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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....
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Force USB 3.0 disk to work as USB 2.0

I have Usb 3.0 disk attached to Usb 3.0 port on a VmWare host machine. The Os of one of the hosted Virtual machines is an old windows server which doesn't support USB 3.0, so it cannot see that disk. ...
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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 ...
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614 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 ...
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311 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 ...
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29 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 ...
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119 views

Loading kernel module dummy_hcd.ko on Raspbian

I try to load g_multi and dmesg shows the following message: [77560.812390] udc-core: couldn't find an available UDC - added [g_multi] to list of pending drivers To overcome this, I want to use ...
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96 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 ...
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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", ...
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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 ...
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31 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 ...
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3answers
296 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 ...
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77 views

NAS with OMV disconnects USB disk when writing large files

I have two NAS based on OMV, one is an Atom SBC the other is a RPi3 B+. Both have a USB external hard-disk (different size, manufacturer, model, controller/enclosure, etc...) with dedicated power ...
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Server 2016 External USB dock error detecting new drive

Server 2016 Standard, external USB 3.0 Dock used as swappable drive rotation for backup software. If the PC boots with the 2TB HD, when I swap to the 1TB drive Disk Management gets confused and the ...
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483 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 ...
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1answer
99 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 ...
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1answer
529 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'...
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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'...
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1answer
74 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 ...
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1answer
146 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. ...
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2answers
128 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: ...
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1answer
843 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 ...
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1answer
128 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 ...
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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 ...
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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 ...
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1answer
580 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. ...
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2answers
656 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?
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1answer
550 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) ...
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1answer
2k 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 ...
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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 ...
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1answer
32 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 ...
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339 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 ...
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1answer
597 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 ...
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1answer
1k 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 ...
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2answers
100 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 ...
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183 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 ...
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How to get usbmount to mount to a specific folder

I use Ubuntu server to run my Plex server. I’m wondering how I can get usbmount to mount my external hard drive to a specific folder. I have two partitions /dev/sdb1 and /dev/sdb2. I need sdb2 to ...
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1answer
2k views

VMWare ESXi not recognizing usb keyboard on install

We are currently attempting to install VMWare ESXi 5.5 on a HPE proliant DL380 gen10 server. The beginning boot sequence appears that it is running fine, but when we get to the first menu option ...
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2k views

How To Mount USB External Storage Drive on to ESXi 5.5 Host for VM backup

How To Mount USD External Storage Drive on to ESXi 5.5 Host for VM backup? After USB Drive plugin, "esxcli storage core device list" shows there is a usb drive attached. But unable to access it. ...
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1answer
138 views

Automatically add client USB drive to VMWare Linux virtual machine

I have this problem with adding USB devices to VMWare ESX host Linux VM in a client-level. I know how to add device to VM by connecting USB to host or using client device by using VSphere. But how ...
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1answer
205 views

VPN access with Junos Pulse Linux client + eToken?

Does anyone know whether the Junos PulseSecure client for Linux (5.3+) can use a USB token for VPN authentication, e.g., via pkcs11? I'm using a SafeNet (Aladdin) eToken 5110 on Windows. My impression ...
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526 views

QEMU USB Passthrough Error: libusb_set_configuration: -99 [OTHER]

I'm trying to pass through a Spectrum Digital TMS320C6713 DSK to a Windows 2000 virtual machine, and when I connect it it appears in device manager, but whenever I try to actually use the device, it ...

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