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• Cannot write, format, nor erase flash drive

  - by Baruch

  I have a 4gig flash drive, which I can read from but not write on, erase, nor format in any computer (tried in 7 different computers including xp, vista, and win7). I want to erase all the data inside because it is useless. Once I erase something, it erases it and gives me an error that it can't find the file. Once I refresh the folder, the file comes back. I tried holding Shift + Del. I also tried to use the command to format it in safe mode, but it says "access denied". I don't have a write protection button or whatever it is on my flash drive. It's just a simple small 4 gig one.

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• Can I get redundancy with a JBOD storage subsystem

  - by Dat Chu

  I have a Promise Technology J610S. This is a JBOD subsystem. Is it possible for me to buy a SAS hardware RAID controller and provide some type of redundancy for these drives? I am unsure whether I will use Linux or Windows yet so an answer with enumeration for both would be highly appreciated. One solution that I thought of was: if my J610s can export each drive as a target, my server will simply see 16 drives. The RAID controller can then perform the RAID5/RAID6 if I want.

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• What are some solutions for cloud storage [closed]

  - by jaja

  I don't want to move my HDDs much, as it would definitely result in one of them one day dropping and fail... also, they are not portable (there are many), and inconvenient to use with a laptop. So, this is what I merely need:- 1) ability to access files as if the HDDs are directly connected to the computer. Which means I don't have to "transfer" to use (more like stream), and ease of access. 2) low cost.

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• Remotely Managing Storage on Hyper-V 2012 Core

  - by Vazgen

  I have a core Hyper-V Server 2012 that I am remotely managing from a Windows 8 client. I can connect in Hyper-V Manager, Server Manager, and MMC. However, I don't understand how I can manage the physical hard drive (for ex, deleting vhdx files, creating folders, etc) from my Windows 8 client. I tried to attach the remote share as follows: q: \\MyServer\c$ It said command completed successfully, but I don't see the drive on my client's Explorer. I can get to it in cmd.exe on the client but how can I manage it in a GUI? explorer q: Throws error:

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• What are the best ways to store Graphs in persistent storage

  - by nicoslepicos

  I am wondering what the best ways to store graphs in persistent storage are, for later analysis, search, clustering, etc. I see neo4j being an option, I am curious if there are also other graph databases available. Does anyone have any insights into how larger social networks store their graph based data (or other sites that require the storage of graph like models, e.g. RDF). What about options like Cassandra, or MySQL?

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• Efficient storage in C#.net App

  - by Tommy

  I'm looking for the fastest, least memory consuming, stand alone storage method available for large amounts of data for my C# app. My initial thoughts: Sql: no. not stand alone XML in flat file: no. takes too long to parse large amounts of data Other Options? Basically what i'm looking for, is a way that i can load with my applications load, keep all the data in my app, and when the data in my app changes just update the storage location.

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• android internal phone storage

  - by John

  how can you retrieve yours phone internal storage from an app? I found memoryinfo, but it seems that returns information on how much memory your currently running tasks. I am trying to get my app to retrieve how much internal phone storage is available.

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• Efficient storage in .Net App

  - by Tommy

  I'm looking for the fastest, least memory consuming, stand alone storage method available for large amounts of data for my C# app. My initial thoughts: Sql: no. not stand alone XML in flat file: no. takes too long to parse large amounts of data Other Options? Basically what i'm looking for, is a way that i can load with my applications load, keep all the data in my app, and when the data in my app changes just update the storage location.

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• How to connect a USB GDI printer to Linux over a D-Link print server?

  - by jpe

  The setup is the following: +------------+ +-----------------+ +---------+ | HP LJ P1005|--USB--| D-Link DPR-1020 |---LAN---| PC Linux| +------------+ +-----------------+ + +---------+ | +------------+ +--| PC Windows | +------------+ HP LJ P1005 is one of those GDI printers that requires the printer driver to do most of the work for it and therefore is a bit "special". D-Link DPR-1020 is a print server with an Ethernet and an USB port that actually supports printing to challenged (read GDI) printers using a utility called PS-Link. What the utility does is basically mirror a USB port over the network to the print server so that the printer driver and the printer both are happy to talk to each other. The PC-s are notebooks that come and go, i.e. are not there all the time. Is there an equivalent of the D-Link PS-Link utility for Linux that could mirror a USB port over the network for a Linux host? And can the solution be used with D-Link DPR-1020? If not then I basically wasted the money buying the print server because the goal was to share a small printer among a couple of users with diverse operating systems in an office. The print server specs say that it supports Linux and LJ P1005, but the Catch 22 appears to be the solution used for GDI printers... It should be noted that it is possible to print from Linux to LJ P1005 directly over USB. This far sharing involved reconnecting the USB cable to appropriate computer to print. Now one of the desks is separated, so the cable does not work. Searching the net did not yield anything useful. Please do not suggest solutions involving a Windows machine (either virtual or not), my question is whether a solution only involving a Linux machine exists.

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• Which Cardbus/PCMCIA -> USB card works with external hard drive?

  - by Carl

  I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My external hard drive w/USB adapter won't work with it, and it will work plugged directly into a USB port on a different laptop. (My USB ports got fried.) I got the card off E-Bay. My MP3 player works plugged into that card. The drivers for the card say "Known limitations: High Speed Isochronus, USB Composite Devices." (No other details provided.) I don't know if the hard drive adapter is "isochronous" or "composite." I've read there are problems with too little power being supplied to the drive. The cable to the drive has two USB plugs on one end, and it doesn't make any difference if I plug both of them into the Cardbus card. What card should I get? I see many different brands on E-Bay. I need one that supplies sufficient power for an external hard drive, and doesn't have any "known limitations" in the way.

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• Which would be more reliable for data archival - SD card or a generic USB thumbdrive?

  - by Visitor

  I've been thinking lately what should I preferably use for data storage and archival. I will say in advance that I do not use flash memory as the only storage media - I also keep my data on the hard drives and optical disks - flash memory is but one of the several backup solutions that duplicate each other. For the flash memory however I do have a choice - to use a generic USB thumbdrive or a SD card. Are there any indications that SD cards may be better and more reliable? From browsing people's review on the web I see that many complaints about USB sticks have to do with them completely failing, losing file system and stop being recognized by the OS. At the same time, most of the complaints for SD cards deal with just write speeds not holding up to the promise - failure reports are but a portions of those for the USB sticks. Are SD cards indeed more reliable? Am I also correct in my assumptions that SD cards use higher grade NAND chips than USB thumbdrives? At least, for class 10 cards, because the specification dictates the minimum performance and the manufacturers have to preselect better chips. While it is common for USB sticks to promise high speeds "up to XX MB/sec" but the reality is they very often deliver speeds 2-3 times less than promised. Do SD cards get better NAND chips and USB thumbdrives receive the discarded chips? Any thoughts would be appreciated.

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• Need recommendation: which USB card (PCMCIA) works with external hard drive?

  - by Carl

  I have an HT-Link Cardbus/PCMCIA USB 2.0 2-port card (NEC / 32-bit). My external hard drive w/USB adapter won't work with it, and it will work plugged directly into a USB port on a different laptop. (My USB ports got fried.) I got the card off E-Bay. My MP3 player works plugged into that card. The drivers for the card say "Known limitations: High Speed Isochronus, USB Composite Devices." (No other details provided.) I don't know if the hard drive adapter is "isochronous" or "composite." I've read there are problems with too little power being supplied to the drive. The cable to the drive has two USB plugs on one end, and it doesn't make any difference if I plug both of them into the Cardbus card. What card should I get? I see many different brands on E-Bay. I need one that supplies sufficient power for an external hard drive, and doesn't have any "known limitations" in the way.

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• Two Way Sync of folder on PC to USB Thumb Drive over the internet.

  - by Tim Santeford

  Before flagging as duplicate please note that other similar posts do not have the same criteria below. Thanks Im looking for an app that will let me automatically sync a usb drive with a folder on my home system over the internet. I would like to roam from computer to computer and run this syncing app from the usb drive. Im looking for the same functionally as DropBox but without the 2gb restriction and without the need to fully install. Two Way sync between a usb drive and pc over the net Utilizes the full size of the usb drive not limited by an online storage size. (I dont need online backup or versioning) Allows the removal of the usb drive, Plugging it in to another computer will resume its sync. While the drive is connected the app should run silently keeping changed files in sync. (I dont want to run a manual process other than simply starting the app) Must be able to run as a portable app from the usb drive but can fully install on home pc. Window 7 Support is preferable. Please let me know if such and awesome app exists. TIA!

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• How to share an USB device(scanner) over network (from Win to Ubuntu)?

  - by B. Roland

  Hi! I have a special thing: I want to share my scanner over the network. The scanner is connected to a Win7 machine, but I want to use it from Ubuntu 10.04... I found some methods: USB over Network - it can handle Linux Windows; and Windows Windows it has Windows (and Win CE) & Linux server, but it has only Windows client, their Linux client is coming soon - that's a drag :( - it is not free, but what uses Windows, what is free? USBip - to Linux Linux, it is free, and nice I'm looking for the other way, what can handle Win Linux thing... I prefer free things, but that thing is maybe not free...

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• What programming Language Would you learn to Re-engineer USB Devices? [closed]

  - by user70113

  Currently Work in IT support and am retraining in electrical engineering / electronics, I am also interested in Reverse Engineering which language would be best for Hardware RE, I have seen a few sources say C, C++ and Python? I am not familiar with Linux, but installed Ubuntu to learn with. I am not a programmer. Far from it. But, I can understand enough basic VB,Java and PHP to edit it for simple things. One of my immediate projects would be to learn to reverse engineer USB devices and write my own low level drivers. I know there are porting kits, but I really want to know it from the ground up. Thanks for any advise folks Most Appreciated.

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• How do I get my ART USB Dual Pre preamp to work?

  - by Zach

  I am using Audacity. I have an ART USB Dual Pre preamp. Ubuntu is not recognizing it whatsoever. I am able to record in Audacity, but it is using the mic that is built into my computer (which is a compaq Presario CQ50) instead of the one plugged into the preamp. How do I get Ubuntu to recognize the preamp that is plugged into my computer? Something tells me it has to do with the installation of the preamp software. It came with a installation CD, but when I go to "install", the nothing happens. I can view what is on the CD, but there is no installing of anything. Please help!

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• my LaCie 500 Gb not mounted on 11.10

  - by pooo

  My external USB drive was recognized with 10.x versions of Ubuntu but since 11.x I am getting stuck, I had tried everything I read in forums but still the same error: 4956.401052] usb 2-1.4: new high speed USB device number 14 using ehci_hcd [ 4956.539216] scsi14 : uas [ 4956.740955] scsi 14:0:0:0: Direct-Access LaCie Rugged FW USB3 1081 PQ: 0 ANSI: 4 [ 4963.256055] scsi 14:0:0:0: uas_eh_abort_handler tag 0 [ 4963.256076] scsi 14:0:0:0: uas_eh_device_reset_handler tag 0 [ 4963.256085] scsi 14:0:0:0: uas_eh_target_reset_handler tag 0 [ 4963.256091] scsi 14:0:0:0: uas_eh_bus_reset_handler tag 0 [ 4963.328122] usb 2-1.4: reset high speed USB device number 14 using ehci_hcd [ 4963.468743] scsi 14:0:0:0: Device offlined - not ready after error recovery [ 4963.468813] scsi 14:0:0:0: rejecting I/O to offline device [ 4963.468831] scsi 14:0:0:0: rejecting I/O to offline device [ 4963.469204] scsi 14:0:0:1: uas_sense_old: urb length 26 disagrees with IU sense data length 510, using 18 bytes of sense data [ 4963.512104] sd 14:0:0:0: Attached scsi generic sg3 type 0 [ 4994.253779] sd 14:0:0:0: uas_eh_abort_handler tag 0 [ 4994.253802] sd 14:0:0:0: uas_eh_device_reset_handler tag 0 [ 4994.253809] sd 14:0:0:0: uas_eh_target_reset_handler tag 0 [ 4994.253815] sd 14:0:0:0: uas_eh_bus_reset_handler tag 0 [ 4994.325880] usb 2-1.4: reset high speed USB device number 14 using ehci_hcd [ 4994.466488] sd 14:0:0:0: Device offlined - not ready after error recovery [ 4994.466555] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466573] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466582] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466588] sd 14:0:0:0: [sdc] READ CAPACITY failed [ 4994.466593] sd 14:0:0:0: [sdc] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 4994.466600] sd 14:0:0:0: [sdc] Sense not available. [ 4994.466608] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466616] sd 14:0:0:0: [sdc] Write Protect is off [ 4994.466622] sd 14:0:0:0: [sdc] Mode Sense: 00 00 00 00 [ 4994.466629] sd 14:0:0:0: rejecting I/O to offline device [ 4994.466635] sd 14:0:0:0: [sdc] Asking for cache data failed [ 4994.466640] sd 14:0:0:0: [sdc] Assuming drive cache: write through [ 4994.467003] sd 14:0:0:0: [sdc] Attached SCSI disk if I am trying on an old ubuntu, the drive is mounted,

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• Which Large File System Format to use for USB Flash drive compatible with Ubuntu/Mac/Windows?

  - by wajiw

  I've had this problem for a long time and can't find a solution. I switch between the 3 OSes all the time and use a 1TB USB Drive to do so. I can't seem to find a format that is compatible across all systems that handles large files (at least 8-9 GB). Does anyone have a solution for this? Recently I've tried exFat but that messes up the filesystem when trying to read on windows after adding files from Ubuntu (using the fuse driver). The OSes currently I'm using are Windows Vista/7, Mac OS X (10.6.5) and Ubuntu 10.10

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• Why does Live-USB boot freeze at the moving dots?

  - by Caleb

  I am currently trying to boot into Ubuntu 12.04 x86 using a USB. I used Untetbootin to do all that boot crap and what not. But for some reason Ubuntu wont load pass that screen with the dots and the purple background. What happens is the dots all light up once, then they go back to white then they all light up at the same time and then it just gets stuck there. Ive even tried using an x64 copy (since my CPU supports it) but have no luck with that either. Ive even tried different DISTRIBUTIONS of Linux and all have failed with loading. Please help

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• How can I resize an external USB NTFS partition?

  - by chris

  I have a new USB drive which came with a single NTFS partition. How can I shrink that so that I can create an ext4 partition? gparted does not seem to have the "Resize" option highlighted. Update: After following the directions below, after unmounting I am still not able to resize the partition. There is a warning though: "Unable to find mount point. Unable to read the contents of this file system! Because of this, some operations may be unavailable. The following list of software packages is required for ntfs file system support: ntfsprogs". However, with the partition mounted, I can read & write to the file system on the drive just fine, and ntfsprogs is installed and current. What's next?

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• Can I run Ubuntu Live from a USB flash-drive without destroying the data on it?

  - by Lucian

  I already have a number of files on a flash drive (8 gb) that I would prefer to keep, but I would like to try Ubuntu even if merely for the aesthetics. I use Windows XP. I know that it's definitely possible to run Ubuntu from a bootable drive like my flash drive to try Ubuntu but I would much rather keep my files intact not only on my flash drive but also my hard drive, if that's possible. I also want to know if it's entirely possible that while running Ubuntu from the USB if I can switch back to Windows while my computer is still on. If I'm missing something, please let me know. I'm very grateful for any assistance in this matter.

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• external disk dont work on ubuntu

  - by Skirki

  i have problem with in my ubuntu: when i connect external imation apollo disc i dont see a file system. Disk is working because in windows OS on this same computer it works as well. when i typed dmesg i got following logs [12913.260078] usb 4-1: new low speed USB device using ohci_hcd and address 15 [12913.440072] usb 4-1: device descriptor read/64, error -62 [12913.730058] usb 4-1: device descriptor read/64, error -62 [12914.020085] usb 4-1: new low speed USB device using ohci_hcd and address 16 [12914.200082] usb 4-1: device descriptor read/64, error -62 [12914.490150] usb 4-1: device descriptor read/64, error -62 [12914.780064] usb 4-1: new low speed USB device using ohci_hcd and address 17 [12915.200070] usb 4-1: device not accepting address 17, error -62 [12915.380081] usb 4-1: new low speed USB device using ohci_hcd and address 18 [12915.800065] usb 4-1: device not accepting address 18, error -62 [12915.800100] hub 4-0:1.0: unable to enumerate USB device on port 1 i trying to fix that by use commands: cd /sys/bus/pci/drivers/ehci_hcd echo -n "0000:00:02.1" unbind but it did not match the result and i don't have any other idea

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• How to boot into Live USB/CD with UEFI on latest Vaio S series?

  - by user76528

  I am unable to boot from USB/CD into a live Ubuntu session to proceed with install. Esc or F12 didn't work and I can't seem to be able to enter the bios settings. Sony Vaio S w/ Ivy Bridge (just one month old, Insyde H2O EFI?) I have read about: creating /EFI/boot on a fat16 stick http://ubuntuforums.org/showpost.php?p=12071096&postcount=2 installing rEFInd using the Alternate install CD (supposedly in order not to mess with W7 UEFI boot partition) It's pretty clear what I have to do afterwards http://askubuntu.com/a/157062 but I am at loss on how to simply boot into a Live Session then install. Thank you

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• How do I change the keyboard layout to a non-standard one on a Live (USB) session?

  - by Agmenor

  I am running Ubuntu 13.04 in a Live (USB) session. My physical keyboard layout is called Bépo, it is the French language Dvorak method-based layout. I would like to change my input layout to this too. To do this, I tried booting in a French spoken session, then open the Keyboard Layout preferences app. Normally, to add a layout, you should click on the + sign and select your layout. However the list that appears is very short and does not contain what I want. On the contrary, on a persistent non-live installation, the choice of Bépo is present. This is also the case during an installation of Ubuntu. So I do I change the keyboard layout of my live session to the correct one?

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• Why dd is not a reliable command to write bootable .iso files to USB thumb drive?

  - by Samik

  As the answers here indicate Ubuntu .iso s are not expected to boot if copied with dd to a USB thumb drive. Now my question is why is so that some Linux distributions have the option to directly write their bootable .iso file to a thumb drive with dd but some (read Ubuntu) have not(for Ubuntu I think it has to be converted to .img first). Is it for some architectural difference in .isos? Or is it due to any limitation of dd itself?I don't know if it is off-topic here. I can move it to a more proper place if the community thinks so or suggests one. Some explanation would be appreciable.

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