Ubuntu :: Suddenly Flash Drives Think They Belong To Root
May 5, 2011
One day recently, when I plug in a flash drive, Xubuntu won't let me write to it unless I open my file manager as root (gksudo thunar). This happened a few weeks ago, back under 10.10; I didn't say anything because I thought the upgrade to 11.04 might fix it. But the behavior continues.If I stick a zip disk in the drive, I can write to it as normal...but a flash drive gives me read-only permission unless I open Thunar as root. I don't recall doing anything special with my system, except maybe installing MountManager (I've since removed it, but I'm still getting read-only access).
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May 9, 2010
upgraded from karmic through update managerANDnone of of my external drives cd drive or flash drives are picked upad to go back to karmic and will remain there for a whil
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Jun 21, 2010
I recently had issues with the latest version of the Linux Kernels and I got that fixed but ever since that has happened none of my Drives will mount and they aren't even recognized.
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Sep 17, 2010
We do server backups to USB HDD's. Neither of our known good backup drives are being recognized by our 10.04 server, fully updated. Additionally, I plugged in my SanDisk 4GB USB mem stick, and it is not recognized either. I am used to seeing the kernel do some PnP messages in either /var/log/messages or /var/log/syslog and I am not seeing any blips there what so ever of the USB drives being plugged in. Did something happen to USB PnP with some latest update? USB HDD's were being recognized recently, like six weeks ago...
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Aug 10, 2010
Adobe Flash plugin stops suddenly when when playing videos from ...... I am using Fedora 13 on my machine, and have the latest Adobe Flash-player installed.
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Apr 9, 2011
I have recently installed Fedora 14 on a new computer we presented as a gift to my sister-in-law. She is new to Linux. Although I've used Fedora since Core 1, I'm no expert on security issues, and this baffles me. She's doesn't know how to change the root password, so why doesn't it work any more? She discovered the problem when attempting a yum update from a terminal.(1) How could the root password have gotten changed? How likely is it that someone got onto her system through ssh, made a lucky guess on her root password, and then changed it? Are there robots that do this?
(2) The firewall is enabled. I have it set up as follows: (a) under "Trusted Services," only ssh is checked (I need to be able to get in remotely this way); (b) under "Trusted Interfaces," I have eth0 checked (I need to be able to use VNConto her desktop).Question: Are these settings giving ample protection? What settings would be recommended to protect her system while at the same time allowing me to access it through ssh and VNC?
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May 2, 2010
This is how to get the Window Titlebar buttons in 10.04 back to where they belong:
*Install Ubuntu Tweak from [URL]
*Start the program from Programs/System tools
*Go to Desktop - Windows manager settings and switch it from Left to Right.
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Apr 13, 2010
How do I access a flash drive? I am using Ubuntu 9.10. I would think plugging it in would auto detect but that does not happen. I have tried several different flash drives. I stick them into a USB slot and nothing. I went into Places.Computer and Places.Home Folder. It's not showing there either. I tried several different USB ports. It appears Ubuntu can't detect USB flash drives.
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Jun 12, 2010
The problem of slow usb transfer speeds has been half solved in Lucid. I'm getting 25 mbps plus speeds when it comes to transferring data to portable hard drive. But with my Kingston flash drive the speeds are still as low as 2 mbps. Is this because some flash drives are not meant to be compatible with Ubuntu?
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Jul 4, 2010
I'm buying a new memory stick online, but on the page I'm buying it from, it says "OS Required: Microsoft Windows XP, Apple MacOS X 10.1.2, Microsoft Windows Vista / 7" so I'm wondering does this mean it won't work in Linux (Ubuntu)? Because i thought that flash drives were independent of OS.
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Dec 28, 2010
I have 64bit Maverick installed and am using VirtualBox 3.2.12 to run 32bit XP Home. In the devices menu, nearly all the USB devices are grayed out. The printer is the only exception. It is working fine. If I plug in a flash drive (memory stick or whatever one wants to call it), Ubuntu sees it and it appears in the menu but is grayed out. When I remove the device, it disappears from the menu. This tells me that VirtualBox sees them. How do I get to access these USB devices? What have I omitted to do?
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Dec 5, 2010
I've just installed Fedora 14 x64 and had a few problems. I have a GT9800 video card and after installation x wouldn't start untill I added xdriver-vesa nomodeset to the kernel line. Anyway I've just got it to the point where it will actually boot but wasn't asked to create a user - the live cd installation only asked for root user password. So I used useradd to create a user and I'm finally at the desktop. My question now before I go about installing the nvidia driver is can someone confirm which groups my user should belong to. I haven't used Fedora since FC3 so I can't remember.
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Apr 14, 2010
The subject has the big question. I've read answers both ways.The kernel has documentation that says the IP addresses belong to the system. Yet the configuration works as though they belong to the interface.Shouldn't we have it just one way and stick with it ... and make everything work that way?
If IP addresses truly belong to the system, then a command to configure an IP address should not need (and not even accept) the name of an interface. The only exceptions would be link-local addresses (which by their nature do suggest being interface specific ... and they should be autoconfigured by the kernel, anyway). Interfaces would only need to be brought up or down.
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May 5, 2010
how do i find the files made by a user on the hole disk?
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Jan 4, 2010
I am running Karmic on a stripped laptop, and running it off a usb thumbdrive.Its purpose is mainly as a slide show/video show inset in a tableI did not really want to go out and buy a HDD, since it does not need to store that much. Then I went to aldi and they had 8gb flash drives for $5, so I got 6. The ultimate question comes down to the best way to make use of them. I ordered a 7 slot USB hum off ebay for cheap, and I was going to go from there. would it be easier/better to just plug them in and make links to them from the normal folders and just operate directly from there, or is there a better option. I guess a usb raid array could be neat
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Apr 19, 2010
I've read that that Linux 2.6.33 kernel supports TRIM, vital to maintaining performance of a flash hard drive). Has anyone tried it? I'm wondering whether the 2.6.33 TRIM support works as intended, keeping a solid state drive from slowing down over time as they will do without TRIM. I've considered adding a SSD to my system, as it's about the only thing I can do to make it faster, short of a complete rebuild. But, I don't want to waste the $ if it's only going to work under Windows 7. Articles about SSDs typically only address performance in Windows 7, unfortunately.
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Apr 24, 2010
I have Ubuntu 9.10 and when i plug in my usb drive it wont mount it automatically and is not shown in the nautilus browser also, but if i search in /dev its visible(its detected) and i can mount using mount /dev/sdc /mnt But if i do this i can only copy files from browser and for all other times i need to use terminal again
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Apr 30, 2010
After a bit of a rough install, I got 10.04 up and running on an Intel D845GRG motherboard. All seems to be working fine except for USB flash drives. My USB mouse and keyboard work fine, but the two sticks I have (Kingston and PQI) will not mount.
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May 22, 2011
So once more am I attempting a shot with Swapboost.
I inserted my practically free 2GB USB flash drive unmounted my two swap partitions and mounted the USB as swap with the Swapboost script.
It is working well. However as I already was running two swap partitions on two separate IDE channels I'm not sure if I'm actually gaining something with this.
Logic says that least I should have increased I/O performance from my drives since I am sparing them from swapping, right?
I will make some experiments later today to see how this affects file transfer speed over my IDE channels and my USB ports (I have in the past noticed a decrease in USB performance with this enabled).
But for now, Swapboost is working nicely.
Code:
FilenameTypeSizeUsedPriority
/dev/sda5 partition9768920-2
/dev/sdb1 partition18555000-3
/media/DOOM_2GB/swap file1946964176432-1
Yes I know it's more swap than I need Buuut.. if I made the swap areas smaller and it would use all of them would it then lead to performance boost?
I am running on small amounts of RAM and some applications I use are very RAM hungry. Mobo only supports 1GB which I'm running on and because of this I put in a video card with 1GB worth of VRAM to save the RAM as much as possible.
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Jan 4, 2010
how to format flash drives in ubuntu. In windows there was a "format" on the right click menu but I did not find one in ubuntu. i am using ubuntu jaunty.
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Aug 10, 2010
I have a Centos 5.5 system with 2* 250 gig sata physical drives, sda and sdb. Each drive has a linux raid boot partition and a Linux raid LVM partition. Both pairs of partitions are set up with raid 1 mirroring. I want to add more data capacity - and I propose to add a second pair of physical drives - this time 1.5 terabyte drives presumably sdc and sdd. I assume I can just plug in the new hardware - reboot the system and set up the new partitions, raid arrays and LVMs on the live system. My first question:
1) Is there any danger - that adding these drives to arbitrary sata ports on the motherboard will cause the re-enumeration of the "sdx" series in such a way that the system will get confused about where to find the existing raid components and/or the boot or root file-systems? If anyone can point me to a tutorial on how the enumeration of the "sdx" sequence works and how the system finds the raid arrays and root file-system at boot time
2) I intend to use the majority of the new raid array as an LVM "Data Volume" to isolate "data" from "system" files for backup and maintenance purposes. Is there any merit in creating "alternate" boot partitions and "alternate" root file-systems on the new drives so that the system can be backed up there periodically? The intent here is to boot from the newer partition in the event of a corruption or other failure of the current boot or root file-system. If this is a good idea - how would the system know where to find the root file-system if the original one gets corrupted. i.e. At boot time - how does the system know what root file-system to use and where to find it?
3) If I create new LVM /raid partitions on the new drives - should the new LVM be part of the same "volgroup" - or would it be better to make it a separate "volgroup"? What are the issues to consider in making that decision?
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Sep 25, 2010
I have Mandriva 08 with Gnome and Nautilus. My O.S won't open a desktop icon but it does show up in "Computer" and HardDrake. If I go to "Places" "Computer" and open up the "Preferences" there is "Settings" which I will include as an attachment. What is the GUI way to use a Flash drive or a MP3 device on Linux. I would rather not use the terminal if it is not necessary.
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Jul 28, 2010
utility to wake up USB flash drives. I have two that do not get recognised under puppy and xp will see them but not format them Fat16 originally but puppy has used them for save files.
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May 15, 2011
I have 3 u3 type flash drives, 1 Memorex and 2 Sandisk Cruzers, and one non-U3 (JDSecure).The purpose is file storage.All four work perfectly on Ubuntu 10.04 and XP.I have continual problems with the U3 devices on 11.04. Problems vary from not being able to open the flash drives causing screen to freeze until I remove the device from the hub, or I am unable to unmount the device causing the desktop to freeze until devices are removed.Sometimes I am able to access files in the flash, before the freeze.The non-U3 device works perfectly on 11.04, 10.04, and XP.Sounds like a system problem to me. I have google searched this to death, but can't find a solution.
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Oct 16, 2010
For quite a while I didn't have any problems and everything worked just fine, until I had to upgrade to KDE 4 from 3.5. And that, as you understand, required a major upgrade of quite a lot of stuff (not only the GUI, but also some of the system including the kernel). After I spent a while fixing up the mess (it works ok now, mostly), I still have quite a problem with optical drive and external disk detection.
Problem 1. DVD drive.
Sometimes it works fine without any errors - the system detects the drive and can write and read the mounted DVD (that's exactly how it was before the upgrade). And sometimes (or should I say most of the time?) there is no drive detected.
Problem 2. Flash drives.
I connect a flash-disk. It gets get detected, mounts automatically - yahoo! But.If I start the system with the drive already connected, then the device is not even recognized (doesn't appear in /dev). So I have to replug it.Used to work fine before.Something tells me that the problems have a common cause. Correct me if I am wrong. Please help!
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Dec 16, 2010
I downloaded the KDE openSUSE live-cd image and I burnt it on a CD and two different flash drives (using the dd command, as intended) and my computer freezes even before it boots the live cd/usb, at the bios laptop welcome screen (where you access the boot menu etc.)
I have an HP 6735b: ATI Radeon HD 3200, Broadcom wireless card. How could I fix this?
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Jan 30, 2010
I cannot access the web/ wireless internet...not my flash drives are being recognized.
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May 2, 2010
After upgrading from 9.10 to 10.04 I am unable to unmount usb drives when I'm not root. Every time I have to type "sudo umount /media/... " and give my password. When I right click the drive and click unmount, I get the following message:
Unable to unmount disk1 unmount: /media/disk1 not is not in the fstab (and you are not root)
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Oct 25, 2010
OS views all USB drives as owned by 'root'. My internal 40 Gig drive files appear properly owned by 'glene77is'.My primary backup is a 320 Gig with all files now owned by 'root'.Using the filemanager "Nautilus", all USB external devices must be accessed as 'usb0', 'usb1','usb2', etc.The device names such as 'Alpha', 'Beta','Cappa' are not usably recognized in the menu options.Nautilus shows their names and the usb# as menu options for browing a device directory. Nautilus will open only the usb# menu option. Then sees all files as owned by 'root'.
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Aug 27, 2011
I have problem with umounting usb flash drives. When I insert usb flash and copy big files to it ( 400MB ) copy process is quick ( system use cache to store files ). After this when I umount this drive, after 1 minute I got error that this drive cannot be unmounted ( because cache is not stored in drive, umount time limit I think ). How to disable write cache to usb flash drives, change its size or change umount timeout.
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