Hardware :: Slow USB Thumb Drive Transfer Ubuntu 10.04
Jun 24, 2010
Has anyone else had an issue transferring large files to external usb drives ? What seems to be happening is it will float right along until it gets to the last couple of megs and then just sit there for a few minutes. The larger the file the longer it sits there. I am having the problem with both an external 1 gig usb HDD and two separate thumb drives. All of which have been verified as functional and fast under other systems. All of the drives are formatted in NTFS for portability in the field. I also do not believe this to be a hardware issue as it does it on my daily driver as well as my laptop.
This is the kernel I am running
Linux 2.6.32-22-generic #36-Ubuntu SMP Thu Jun 3 19:31:57 UTC 2010 x86_64 GNU/Linux
I'm using 11.3 x86-64 KDE4.4,I bought a Corsair 4GB thumb drive last week,but when I tred to transfer some file from Dolphin to Corsair,the 'paste' selection in pop up is grey color,it means I couldn't paste thing into this thumb drive. I tried to modify the permission of this thumb drive,but failed,it pop up said I have no permission to do that.And when I download a .rar file tried to extract it with Ark,it loading the archieve like never ending,what's the problem?
I have a 500 gig external usb, and a few 8 gig flash drives. If i copy a file (say a movie or large file) from my primary hard drive (80 gig WD formatted to ext3) to a usb drive it transfers very slowly, about 2 mb/s. But if I copy a file off my secondary internal drive (40 gig seagate formatted to ntfs) it transfers full speed (25-30 mb/s) Its also very slow transfering between internal hard drives (again, no more than 5 mb/s) I checked and as far as i can tell both drives are running in DMA mode. Any reason my primary seems to be causing this bottleneck? it seems to preform fine otherwise (as it is the drive with my ubuntu installation on it)
I'm getting a really low speed (2-3 mbps) while transferring data to my USB drive and external hard drive. I've heard this problem's there in Karmic but not in Jaunty but i have Jaunty and yet I'm facing this problem.
Whenever I transfer a movie into my 16GB USB flash disk, my whole system becomes windows-like and unusable!
When i drag the file(s) into the USB disk folder, it starts out fine and pretty darn fast (25mb/sec) then slowly decreases until it's unbearably slow (3m/sec) and as a side effect my whole system starts deteriorating. I basically have to wait for the file to finish transferring before i can use my desktop again!
This has been happening with every version since Karmic (all 64bit)- I put up with it because I don't use the USB stick that much.. but lately it's been my go to source for transfering large files to/from work.
The software: Ubuntu Server Edition 9.10.The wetware: A programmer doing his best (read: ignorant, shitty) as an ad-h.When I plug the USB thumb drive in, the install OS gives it a drive letter -- /dev/sdb -- and it pushes the original /dev/sdb down to /dev/sdc. The installation works without a hitch, and GRUB2 installs, dutifully pointing the root at /dev/sdc1 instead of /dev/sdb1.I let GRUB2 start normally ("drive not found"), holding the <shift> key to get to the "rescue>" prompt.From there, I issue "ls" to discover that GRUB can NOT see /dev/sdb, and I can tell that because what is showing up as (hd1) does NOT have three partitions as it should.GRUB2 sees a total of 16 drives, not 26, and one of the drives it sees is "fd0" (there is no floppy drive).Issuing commands like "set prefix=(hdx,y)" and "root=(hdx,y)" have no effect as, I think it's just pointing to the (reiserfs)content drives and this GRUB2 tells me "unknown filesystem".I did try them all in vain, hoping that maybe I'd find a kernel somewhere.I used the "rescue" mode of the Ubuntu installer (the USB thumb drive) to get to a root prompt.From there, I mounted /dev/sdc2 (the "shifted" /dev/sdb2) onto /mnt, I mounted /dev/sdc1 (the "shifted" /dev/sdb1) onto /mnt/boot,and then I chroot'ed to /mnt.I edited /boot/grub/grub.cfg, editing every instance of "root=(hd2,1)" to the appropriate UUID for the "real" /dev/sdb1. Then I issued update-grub2.It refused to work giving me an banal "no such partition" error or something like that.
We originally had this server functioning by putting / and /boot on the SS SanDisk, which caused no problems during installation because /dev/sda doesn't get shifted.We then figured it was a good idea to put our OS files on something with failover capability. And that started us down this crappy "shifting drive letter" path.Can I control which drive letter the USB thumb drive gets assigned during the install process?If I could make it be /dev/sdc then I wouldn't be facing this problem.An alternate solution would be to know the cryptic GRUB2 commands that I can issue from the command prompt post-install, pre-reboot.But I'm wondering if that will ultimately work at all considering that GRUB2 couldn't see /dev/sdb at all.
I am new to Linux ,i did one project in windows which will block the thumb drive with respect to serial number(Device instance ID) of the device.i am planning to do the same project in Linux using c/c++.I am very new to Linux,there is no drive letter for thumb drives we insert into Linux OS.How to get Drive letter and how to get Device instance id of thumb drives please help me get some clues.please provide me any tutorial or any links .w if have any other clues to block devices with respect "block list" and "allow device list".if the serial number in block list it has to block if serial number in allow device list it has to allow thumb drive to access.
Nothing happens when ordinary users plug in a USB thumb drive or insert a CD into CDROM drive. Works fine for root. After root mounts the drives then all users can use them. How can I enable mounting/unmounting by all users?
I've just installed UNR version of Ubuntu on one of my thumb drives and was wondering what I needed to do to for making it have persistent changes? I've seen the different tools and the usb creator they have on Ubuntu already but I want to do it myself from scratch. What files do I need to edit to make the drive persistent? I made the bootable thumb drive using UNetbootin.
I want a USB drive for emergency situations. It will have sensitive information, family photos, etc. stored on it. I want it to have one encrypted portion (TrueCrypt) for the sensitive materials. I want the files to be able to be viewed on a Windows machine first and foremost. If no Windows machine is available I would like to have a bootable version of Ubuntu on the USB drive so I can boot it and also view the files.
I want to move 1.2GB of photos onto a 2GB thumb drive, calling up Properties, it says the size on disk is 9.7GB. What is going on? I don't recall discrepencies this huge in previous OS's. What is taking up 7 times more space than my actual files?
I have a new Giada cube with no hard drive, so my plan is to simply run a Linux/MythTV distro called MythDora from a Patriot 8GB USB stick (this Giada does not PXE boot). I am having trouble figuring out exactly how to make this work. Yesterday, although I have forgotten exactly how, I was able to put a MythDora Live image on the stick and boot up. I went through the initial setup, and then, when I was all done, I rebooted, and..it started all over again...as if I was doing it for the first time. So...What do I need to do to create a proper bootable USB stick?What ISO image should I use? The full DVD? Or the Live ISO? or the Network image?Do I need to partition the stick and load the O/S from one small partition, transferring the installation to another larger one?What utility should I use to create the bootable stick? unetbootin? or similar?Do I have to do anything special to make my O/S and configuration changes persistent on the USB stick?
I want to copy my /home to a USB thumb drive recursively. I've wrestled with this for a few hours now and continue to spin my wheels.The device is listed in my Disk Utility as /dev/sdc. However a little further down it is listed as /dev/sdc1 ? Anyway, I relabeled the volume as usb stick and formatted it to Ext4. I mounted it at /media/usb stick Do I have to enter this drive into the fstab? If so, how? what do I write? Using the command : cp -R (what follows... I want to copy /home recursively to the usb thumb drive.)
I need to have a web app that is feeding ip camera feeds across internet to a server. Need to have thumb drive preconfigured with cameras prior to shipping. End user plugs in cameras, puts thumb drive in any running PC, have WEB app start with some menu options to like name the feeds. Back at server receiving feeds are broadcasted via secure web site.I have never worked with Linux but have read some incredable things already.
When I insert a USB thumb drive into a USB socket a "CD-ROM Disc" icon appears on the desktop. When I double-click on the icon I get a "CD/DVD Creator" window. Messages in "/var/log/messages" shows Vendor (Sandisk) and Model (Cruzer) for the USB thumb drive. Those are correct. But for Type it says CD-ROM. What's up with that?
I'm going to put Ubuntu on my thumb drive. It's a rather large drive, so I might as well make use of the extra space.
Do I format it to FAT? Never done this before. Also, how do I enable it when I boot up? Do I have to make my computer to boot from the USB drive first in the BIOS settings or is there an easier way to do it (like clicking on an icon inside the USB virtual drive on the desktop).
I had a friend ask how he could do his electronic banking without a chance of any information being left on his computer once he is done.
I thought of a Ubuntu live CD but have seen the HD activity light flashing when using one. That leads me to believe that some kind of use is made of the HD and that makes a live CD questionable. He wants no information on the HD even in unassigned sectors.
Maybe, better yet would be a USB thumb drive that runs Ubuntu or another distribution that will not use the HD or even require that one be in the computer. A plus with a thumb drive would be that it would only be available on the computer when it is being used so it could contain passwords etc. Of course, it would have to be removed when not in use.
I want to put Ubuntu on my 16 gb USB thumb-drive so that I can use Ubuntu on any computer willing to boot from a USB drive (at my office, my wife's desktop, etc.) I cannot find how to do this. All my search attempts show me how to put an "install disk" onto the USB thumb-drive using the command: System -> Administration -> Startup Disk Creator
I tried the above. The first time I booted from the thumb-drive it asked me whether I wanted to try using Ubuntu from the thumb-drive or install. Having to make that selection with each boot would be a slight pain, but not a deal-breaker. But then the thumb-drive OS detected my laptop's wireless card, asked to install a driver, and then asked to reboot. Now it does some odd blended boot where it skips my hard drive's Grub Loader (so it *is* still booting off the thumb-drive) but goes to my hard drive's account sign-in. How can I make a USB thumb-drive that boots Ubuntu Desktop just as a normal hard drive, with accounts and the ability to install drivers and new software?
I tried to install ubuntu 10.04 to a 16 gig thumb drive and the installation went perfectly. However, when I removed the thumb drive and tried to boot the computer back into windows I saw that the installer had installed GRUB on to the hard drive of the computer. Windows runs fine, but it wont start with out the thumb drive that has the ubuntu install on it, this is very bad for me. Is there a way I can remove GRUB with out messing up windows on the computer? i dont have a windows 7 boot disk so this operation would need to be done either in windows (already booted) or ubuntu.
I formatted a thumb drive on Windows (not quick format) that contains files I need (video files). Unfortunately, my attempt to recover them with both PhotoRec and TestDisk failed: neither of them found the files. I know they are still there because I scanned it with some Windows software (File Scavenger) and it detected them. I'd like to try to do this with Linux, to figure out how to do it, and save money at the same time.
The following quote is the sad, sad story of a thumb drive with the partition table nuked, as told by a friend of mine:
Data was recovered from an XP system by booting with a BartPC CD and copying onto a USB thumb drive. Nothing unusual.
System was rebooted into the XP install CD.
The first drive that was found was the 16gb thumb drive (AKA flash drive) and the person (re) installing XP didn't catch the fact that XP presented the 16gb thumb drive instead of the 160gb hard drive.
The drive partition function in XP deleted the partition table - on the thumb drive.
A freeware utility in Windows shows the data but can't recover the file names, so that everything is gobbledygook. Does anybody know of a utility or program under Linux that can help? I have a laptop running F 12 and can do the work if needed, but don't know what program to use.
I am looking for OpenVMS distribution on a thumb drive for a PC. I image it would be a Linux system that automagicly starts a VAX simulator then boots OpenVMS on that. Either it would run live off of the thumb drive or it would install to the system's hard drive.
I 'm using vmware server to virtualized suse linux enterprise server11 as the guest operating system under my main OS of window 7 professional version, but when i plug on the pen drive, SLES11 (guest OS) that hosted under vmware with window 7 prefessional as main OS can't detect of my pendrive but i can do this before at window XP version...