General :: Storage - Mount "locked" SD Card As Read-write In GNU
Feb 9, 2010
My Canon PowerShot A470 + CHDK can write to SD-cards that are "locked" (the lock switch is used to make the card bootable), but GNU/Linux
`/dev/mmcblk1': Read-only file system
(I'm using "Texas Instrument 5-in-1 Multimedia Card Reader")
So I have to switch that switch on and off again and again. ("unlocked" to write to the card in Linux, "locked" to boot the camera from it).
How to force locked card to be writable in GNU/Linux?
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Jan 18, 2011
How does the read & write request from a command prompt go to usb & retrieve the file ? When a read request is given , I/O manger sends the request to file system manager (FSM) and from FSM to mass storage device drivver and from there to mass storage , is this right in Linux ?
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Mar 29, 2010
I am running Lenny. USB storage devices are painfully slow, if the data to be copied is above 4GB it works on transferring for more than half an hour and then comes up with an error dialog(saying something like file size is too big). The problem exists in both read and write.
I did google a bit and here is the output of lsmod | grep hci
ehci_hcd28428 0
uhci_hcd18672 0
usbcore118192 4 usb_storage,ehci_hcd,uhci_hcd
[Code].....
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Oct 7, 2010
I try
mount -t ntfs -o rw /dev/sdb1 /mnt/exthdd
it doesn't give me any response so I presume it succeeded but when I try to touch it, it tells me it's a read-only file system
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Feb 8, 2011
How do i disable the linux file cache on a xfs partition (both read an write).
We have a xfs partition over a hardware RAID that stores our RAW HD Video. Most of the shoots are 50-300gb each so the linux cache has a hit-rate of 0.001%.
I have tryed the sync option but it still fills up the cache when copinging the files. ( about 30x over per shoot :P )
/etc/fstab:
/dev/sdb1 /video xfs sync,noatime,nodiratime,logbufs=8 0 1
Im running debian lenny if it helps.
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Dec 17, 2009
I can mount the NTFS in read only mode, but i need write access too. how can i mount NTFS partition in read/write mode..?
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Jun 12, 2011
I was attempting to reformat a 16GB MicroSD card in my camera when the battery died mid-way. After that, any time I try to read the card in my camera, it gives me a "Card Error" and does not allow me to reformat it in my camera.
So, I thought I would plug the camera in to the laptop with it set to host the card as media when plugged in as USB, in an attempt to fix the formatting issue.
However, when I plug it in to my linux machine, it does not register as a device (e.g., /dev/sda) due to some errors, therefore I cannot reformat it. Essentially, I think I need to fix the partition table but I'm not sure how to when it doesn't register as a device. code...
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Jan 4, 2011
I have installed a cable that connects from the CPU's SATA motherboard connection to a removable drives' ESATA connection.I would like to be able to swap drives on the ESATA connection and have all users be able to read and write to these drives.I have created the directory /archive/ where I would like the drive(s) to mount.The drives are all formatted Fat 32 - but in the future I may use HFS for formatting.When I used the command (as root):mount /dev/sdc1 /archivethe drive was mounted (but read only)What can I use in my /etc/fstab file that will allow drives to be mounted and unmounted by all users on the system? (both reading and writing)Also, will I be able to mount and unmount these drives without shutting down? or will I need to reboot every time I want to change drives?
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Oct 6, 2010
I want to simply mount an ext4 file-system onto a normal mount point in Ubuntu (/media/whereever), as read-writable for the current logged-in user, i.e. me.
I don't want to add anything into /etc/fstab, I just want to do it now, manually. I need super-user privileges to mount a device, but then only root can read-write that mount. I've tried various of the mount options, added it into fstab, but with no luck.
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Mar 10, 2011
sudden of all all USB drives and sticks I put into a PC will not mount with read/write permissions (they did before). I can still copy to them, but only when I am root. I am on Maverick I've noticed though that if I run disk utility, then UNMOUNT the partition, Check File System, Mount the partition back, I get read/write access..
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Oct 11, 2015
When I plug in a usb flash drive, my Debian mount it, but when i am going to write, mkdir, rename file or paste a file permission denied.
The result of Code: Select alldev/sdc1 /media/usb0 auto rw,user,noauto 0 0
is Access denied
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Aug 25, 2010
I have installed Debian on My Macbook Pro.
I want to be able to write to the HFS+ partition. I have disabled journaling on the HFS+ partion.
I have the following in my fstab:
But it still mounts as read-only.
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Mar 19, 2010
I am running Karmic x64 on a HP laptop that has a cd/dvd burner. I have a r/w cd with files on it and I wish to add/remove files to it. After it mounts automatically on insertion, I unmount it and remount with:
sudo mount /dev/sr0 -t iso9660 -w /media/cdrom
(I tried assorted other hare-brained things also) but it always says that the filesystem is read only. Do I need to use a different device than sr0? Is it even possible under Ubuntu?
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Jul 1, 2010
We have a network with several computer. We have two file servers (don't ask why) an Ubuntu and an XP as well as many clients. Setting shares on Ubuntu was easy and all clients can see them read and write. but I can't get the Ubuntu clients to see the SMB shares on the XP properly. This is my fstab:
Code:
//192.168.0.100/resources /media/resources smbfs iocharset=utf8,credentials=/home/boss/.smbcredentials,dmask=775,gid=1009 0 0
//192.168.0.9/summer /media/summer smbfs iocharset=utf8,credentials=/home/boss/.smbcredentials1,dmask=775,gid=1009 0 0
[Code]....
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Feb 25, 2011
I don't want to have to download the kernel source and uncomment out CONFIG_UFS_FS_WRITE=yes and build a custom kernel ever time I update the kernel. Is there a better way? Like when Ubuntu.deb repositories claim a stable kernel is there an auto config script when installing from synaptic -or- aptitude? Like any way to add this one config opt to .deb kernel W/O building custom one from source?
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Apr 6, 2010
After installing the "fuse" and "fuse-ntfs-3g" packages, my ntfs formatted thumb drive mounts read only, as follows:# mount.../dev/sdb1 on /media/disk type fuseblk (rw,noexec,nosuid,nodev,allow_other,default_permissions,blksize=4096)
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Dec 10, 2010
I am new to linux at driver level. I want to read/write at specified memory location in microSD card in linux. I do not want to used SD card with any file system. How to do that. My linux distribution is Fedora13.
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Jun 23, 2010
I need some assistance mount a UFS2 partition as read and write. if its not possible, then I may have to copy a few hundred GBs of data. Currently using the command: Code: mount -r -t ufs -o ufstype=UFS2 /dev/sdb /Data Thats just read only.
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May 14, 2010
I have created 700 GB ext4 logical partition on my HDD. It is named sda7. Now I don't have read/write permissions, only root has those permissions.
How to change read/write permissions and how to mount it permanently?
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Feb 17, 2011
I used dual booting with Windows Xp and Ubuntu 10.04. Because errors, I reinstall Windows and then I could not enter GRUB, and Ubuntu partition disappear. I tried to reinstall ubuntu using live CD but I could not detect last ubuntu partitions. After I installed fresh Ubuntu on new partition, I got error message like this:
Unable to mount floppy0 Mount: block device /dev/fd0 is write protected, mounting read-only Mount: could not determine the file system type, and none was specified
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Jun 14, 2011
I'm trying to configure a per user samba login for full access to the user's home directory.Mounting the shared directory works flawless when mounting from Windows. I can read, write, create without problems. However, when mounting from Linux the shared space is readonly.
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Mar 4, 2011
The card in question is a PC Card (PCMCIA) 16Bit Intel Series 2 Flash Memory Card (2MB) and I want to be able to read from and write to the card. I've rebuilt latest stable kernel (2.6.37.2) with all the PCMCIA options turned on or built as modules. I've got an SRAM card, a CompactFlash Card (in a CF to PC-Card adapter) and the Linear Flash card to try, the SRAM card I'm not expecting greatness from, but hoping to prove that the slot works (it registers, but doesn't get much reported from lspcmcia). The CF card in the adapter works. I'm expecting to see a block device in /dev but nothing appears lspci:
[Code]....
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Dec 10, 2010
I'm new to debian ,I was trying to mount my NTFS partition but I did that only with read permissions I couldn't install ntfs-config(allthough I have ntfs-3g installed).So I want to figure out how to mount my partitions with read/write permissions automatically as the systeme starts ?
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Mar 9, 2010
I have a networked raid drive. Thecus 2100. Its running linux, and includes samba sharing. On that I have a folder shared. I can connect to and read and write from nautilus. No problems. However, I can't use other apps through that method. Its not really "mounting" that drive in the sense you'd normally think of (afaik).
If I try to mount the folder, no matter how I have tried so far (-t cifs, smbmount, etc), I can navigate the folders, but if I try to read any file I get a permission error. Looking at the permissions with 'ls -l', everything looks OK. The weird thing is, I can write a file, then read that file back as long as its the same session.
Just now I tried 'smbclient' with no special arguments. Just the server and path url. It asked for my password. Once I was in, I had no trouble getting files. I had a thread about this a while back and there were several links and all sorts of command line options to try, which I did, with no different outcome. I think its got to be something much simpler and more obvious. smbclient and nautilus seem to have no trouble. Anybody know what they're doing differently?
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Sep 2, 2010
I have a Windows 2003 server with fiber attached volumes (NTFS) that I would like to mount readonly on a linux system to back it up to tape. The fiber device will allow me to present the volume R/W to one host and R/O to another, however, the R/O system doesn't see any of the changes made by the R/W server. In other words, how can I make a readonly volume refresh, scan for changes, or update without un/re-mounting it?
Is the "mount -o --bind" option what I want? From the MAN is doesn't seem right... the option "sync" seems slightly more promising but I think I'm just grasping at straws here. The best I have come up with is a cron job to unmount then mount the volume periodically.
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Mar 19, 2010
Recently updated the kernel in Ubuntu 9.10 and for some reason now, a folder which was not read-only now is. I can't delete anything from it. Have tried using the GUI for changing permissions, however, it has a mind of it's own and won't unlock the folder.
Anyone had this happen where a folder locked when you didn't want it to be?
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Jul 4, 2011
I'm pretty new to Linux. Though I've used it for a little bit, I barely know any shell commands. I recently migrated from Mint to Fedora. Installation went fine and I thought I was doing great until I tried to copy something onto one of my ntfs partitions (I got them automounted through changing fstab). Now I can't change the permissions with sudo chmod... it says I can, but nothing changes. And, while the folders are listed as allowing rw for the user group I set up, I can't actually change anything. I'm guessing I've done something wrong with my fstab file.
My fstab file is:
Code:
I should probably note that I'm using NVIDIA fake RAID 0, which is why my device locations are all /dev/mapper/nvidia_fcficeibp#
The command I have tried to change permissions is:
Code:
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Feb 28, 2010
I get the follwing error, since I added a new S-ATA HDD to my server, if trying to open the Yast2 Partitioner:
Fehler
Das Speichersubsystem wird durch eine unbekannte Anwendung gesperrt.
Sie m�ssen diese Anwendung beenden, bevor Sie fortfahren k�nnen.
In Englist this means: Error The storagesubsystem is locked by an unknown application. You have to exit this application before you proceed. Here is the output of /var/log/Yast2/y2log:
2010-02-28 16:01:19 <1> hostname(12907) [Interpreter] clients/disk_worker.ycp:50 Calling YaST client disk_worker
2010-02-28 16:01:19 <2> hostname(12907) [Interpreter] Encoding.ycp:30 Scripting agent sweeping
[code]....
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May 27, 2010
I'm looking forward to using OpenSuse shortly, and hopefully the install is still being performed. I downloaded the GNOME iso and burnt to disc. It was partitioning my win7 drive and creating new partitions. I went to move the YAST screen and that led me to shaking the window (not knowing the screen would disappear).
Now I'm afraid something bad happened. Please tell me I didn't fry my hard drive! At the moment it appears I am running off the cd. I tried to run the Live installer again and got:
The storage subsystem is locked by the application "y2base" (3620).
You must quit that application before you can continue. I cannot tell if the partitioning/installation is still happening.
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Feb 4, 2010
What are the possible problem when Windows access the file from Ubuntu got Read Only even though have a full permission to read, write and execute the file? Ubuntu to Ubuntu accessing the file there is no problem only Windows got a problem.
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