Ubuntu :: Hard Drive Set As Read Only?

Jan 19, 2010

I set up a server using ubuntu 9.10, with two hard drives in a hardware Raid 1 setup and with two more drives for recurring backups. The problem is that the two drives for backup are set to read only and won't allow me to change the permissions even when logged in as root. I have tried putting "rw" into the "fstab" file with no luck, I have also tried running "gksudo nautilus" and "fsck -r /dev/sdc" but still have the same message that I don't have the necessary permissions to complete the task.

**I just tried erasing the data on the disk and creating a new partition, the disk utility allowed me to erase the data and create FAT32 partitions with the same permission problems but would not allow an EXT partition or NTFS partition (it would give and error message stating:"Error creating file system: helper exited with exit code 1: helper failed with:mke2fs 1.41.9 (22-Aug-2009)")**

***I fixed the problem by fixing a formating problem in fstab and reformatting the drives to ext4.(the fstab had a problem with the way that I broke up the lines when I input the info for the new drives, and I didn't realize it until I maximized the window in gedit.)***

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Ubuntu :: External Hard Disk /Hard Drive Mounts As Read Only (Suddenly)?

Jan 17, 2011

I recently bought 320 GB Trancend external hard disk and working fine days back.Earlier i could copy from and to the hard disk with out any issue. I dont know what happened after that now i am not able to write any files in to the external hard disk. This is not NTFS formatted device. here is some of the out put from terminal.

Code:
sundar@sundar-sundar:~$ fdisk -l
Disk /dev/sda: 120.0 GB, 120034123776 bytes

[code]...

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Ubuntu :: Can't Read WD Hard Drive / Make It Possible?

Dec 26, 2010

I have a simple WD external USB hard drive, but when I plug it into my computer nothing happens. Not only is there nothing popping up, but I cannot access it through the file browser. The light on the hard drive turns on as usual.

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Ubuntu :: Hard Drive Read Only After Backup Crashed

Mar 13, 2010

I was busy making backups to my external hard drive just now, but Ubuntu crashed 10 mins into the backups. After rebooting the affected folders are now Read only, and I cannot add or remove anything. This is extremely annoying, I already threw away two USB flash disks because the same thing happened to me in the past. I don't want to throw away the external because it's far more expensive and packed with backups.

Symptoms: I can write or delete a file to the hard drive, in any folder, accept the folders that was being accessed when the computer crashed. I have tried to change permissions, but I get an error. I tried opening a terminal and sudo rm -r that folder, but I get a input/output error. I'm running Karmic. Backups were made by Back-in-time.

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Ubuntu :: Cannot Format FC Hard Drive - Unable To Read

Sep 8, 2010

Below is results from attempt at formatting my hard drive. As you can see a driver is installed, but not working. Perhaps something is missing? Seems a bit odd that a "unable to read" comes back when disk data is reported. The drive just went through a low level format. BTW this is a fiber channel drive. Also on board are 5 scsi drives. Adaptec raid card. Not sure if that would have any relevance, but there you are.

barry@vm1:~$ sudo lshw -C disk
*-disk
description: SCSI Disk
product: ST173404 CLAR72
vendor: SEAGATE
physical id: 0.0.0
bus info: scsi@1:0.0.0
logical name: /dev/sdb
version: 3A98
serial: 3CE0SRYL00007142FHAW
capacity: 67GiB (72GB)
capabilities: 10000rpm
configuration: ansiversion=3
barry@vm1:~$ sudo fdisk /dev/sdb
Unable to read /dev/sdb .....

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Ubuntu :: External USB Hard Drive Keeps Getting Read-only Permission

Feb 17, 2011

I have a computer with Ubuntu 10.04, with few disk space. For downloading some torrents, I've connected a USB hardrive, ext4 formated. But this idea wasn't a solution, because the drive keeps getting read-only permission... Is there any way of prevent this to happen?

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Debian :: USB Hard Drive Mounts As Read Only

Jan 4, 2016

Trying to go through some old hard drives I'd saved from a Mac we tossed years ago. Using a Sabrent USB adapter (USB-DSC9) I connected it to the Debian box and it mounts as /media. Here's the weird thing: although I can read all the random stuff, the directory with all my actual documents shows up as "you do not have the permissions necessary to view the contents". When I try to fix this with chmod, it tells me that the drive is read-only. Grr.

How do I mount the drive so that it's not read-only?

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OpenSUSE Hardware :: Cannot Read My USB Hard Drive

May 7, 2011

I can not see my usb hard drive here is some information
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00021330 .....

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General :: External USB Hard Drive Became Read Only

Aug 21, 2010

I was in the process of backing up data from my hard drive to an external usb drive when the drive suddenly became read only. Does anyone know how I can make it read/write again? I am using Debian Lenny and the drive is ntfs formatted. I have another ntfs formatted usb drive that is not effected in this way.

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Ubuntu :: Xfce4. External USB Hard Drive Is Read Only Despite Efforts?

Jun 26, 2010

I am using Thunar and XFCE4. I started with the minimal install CD, so this is not exactly Xubuntu as I do not have Xubuntu-desktop package installed. I installed psydm to be able to easily edit and control mounting, fstab etc... Anyways, I can't figure out how to write to this disk. I have amended the Thunar icon to read "gksudo Thunar" as its command. It opens Thunar with whatever elevated rights that would come along with the command. I still can't write to the disk. If I change the permissions for the disk under the properties tab to be "read&write" for the user group, It asks me about something to be done retroactively to files. No matter whether I choose yes or no here, it still does not change the disk to a writable disk.

No love and no ideas. Can you help me write to this disk ? I run as a user called "user" so maybe I should not have made Thunar open as "gksudo" ?

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Ubuntu :: External Hard Drive Now Stuck In Read-only Mode?

Jan 22, 2011

so here's my issue and what I think is causing it right now. I have a 1TB external usb hard drive that has worked perfectly, but recently I set it up a mount point for it in fstab so that I could create a SMB share on the drive so I could stream videos and pictures to my TV through my Wii using WiiMC. This now works perfectly, but now the hard drive has been set into read-only mode. When I use sudo to try to chmod the drive or the folders on it, it does nothing. When I right-click on the drive and check the permissions tab, it says the owner is root and all the options are greyed out.

I've read through several posts on similar topics to this, but none of them have been very helpful as they suggest using command line tools that I don't know how to use, so I'm hoping someone here can give me concise, step by step instructions of what to type in, or what settings to change in fstab to solve my little problem so I can start copying stuff back onto my drive. I'm running Ubuntu 10.10 and the filesystem on the external drive is FAT32. Here's some more info you might need:

sudo fdisk -l:

Code:
Disk /dev/sda: 120.0 GB, 120034123776 bytes
255 heads, 63 sectors/track, 14593 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

[Code]...

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General :: External Hard Drive Mounted As Read-only

Mar 16, 2011

I administer a remote server via SSH that runs CentOS 5.5. I have been unsuccessful in all my attempts to write to two different external USB hard drives with a single ext3 partition when logged in as root.

When attempting to create a "test" directory I get one of two messages:

Quote:

Both drives *appear* to have filesystem issues. When I run an fsck on either drive, I get:

Quote:

Keep in mind this is a newly-formatted, empty drive.

Not putting stock in the odds that I've had two hard drives (different sizes and brands) with the exact same hardware problem, I'm going to assume this is a software issue, although maybe it isn't. Hence, my post in "Linux - General". I've heard talk elsewhere of controller (chipset) issues coming into play. Is this valid?

Okay, here's the information you'll need to make a diagnosis....

Here's the output of a "df -h" command:

Quote:

Here's the contents of my /etc/fstab:


Quote:

Here's the output of "cat /etc/mtab":

Quote:

Here's the output of a mount command:

Quote:

Here's the output of fdisk on the device in question:

Quote:

The number of cylinders for this disk is set to 48641.

There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with:

1) software that runs at boot time (e.g., old versions of LILO)

2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK)

Command (m for help):

I've got someone with access to the box if necessary. But it might take days to implement solutions since this isn't his full-time job. Remote solutions are, therefore, preferable.

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General :: Won't Let Mount An External Hard Drive As Read/write

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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Dec 16, 2010

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May 14, 2010

I recently got a computer donated to me for free from my Computer Science class, as the teacher couldn't figure out what the problem was that was preventing him from booting to the startup screen (all I could figure out was that the slot the memory card was in was bad, so I switched slots and got it working). The hard drive on the computer was wiped with a disk nuker called DBAN. Now I would like to install a Linux OS on the computer, but whatever disc or distro I try gives me similar "unable to read" errors. I would like to know if there's anything software-wise I need to do before attempting to replace any hardware. An example of the error I'm getting is as follows (using a mandriva livecd):

/etc/rc.d/rc.sysinit: line 1281: /var/log/dmesy: Read-only file system
SQUASHFS error: sb_bread failed reading block 0xa6e58
SQUASHFS error: unable to read cache block [29b963ea:782]
SQUASHFS error: unable to read directory block [29b963ea:782]

Anyone know what I need to do to get this fixed so that I can install a Linux distro?

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Jan 19, 2011

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Jan 25, 2010

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Mar 16, 2010

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Jan 14, 2009

I have 2 ubuntu's: 1 on my ineternal hard drive, 1 on my external

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I'd like to be able to startup without external hard drive and make the ubuntu on my internal drve the standard.

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Feb 26, 2010

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