Ubuntu :: I / O Errors And Crashes - Cannot Write But Read
Apr 8, 2011
Recently my Ubuntu system decided to crash. Sometimes the mouse freezes, sometimes I just can't open anything, and other times I can access the terminal but can't write. I can open files as read only both in my /home partition and in /var/log, but I can't write at all. Sometimes I get Bash: input/output error. I *can* "ls /proc", if that makes any difference.
I find that if I reboot, the problem goes away for a few minutes and then reoccurs. I can read/write to my other (windows) drive, although when I did a chkdsk in win7, I get a "An index entry from index $0 of file 25 is incorrect" message. Is the disk failing? Just a few bad sectors? Maybe the filesystem is corrupt? Why can I read but not write?
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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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Mar 10, 2010
I want to backup my Ubuntu box and I found a couple very helpful articles that describe how to use tar for backup and restore. So far so good. I've dabbled in Lin/Unix in the past, mainly on work systems, but Linux on my personal PC is new to me.
When I ran the tar command as root (su -) I noticed several errors scrolling by in the window. It's scrolling too fast to note the exact errors, but I did notice "permission denied" a few times.
Is there some way that I can capture the output of the tar command to a file so I can review it for errors and/or permission denied statements?
Can I just add some arguments to tar?
tar cvpzf backup.tgz --exclude=/proc --exclude=/lost+found --exclude=/backup.tgz --exclude=/mnt --exclude=/sys /
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Jul 7, 2010
OO write crashes today and now refuses to start. strace gives:
Code:
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb772e000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb772e8d0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xdef000, 8192, PROT_READ) = 0
[Code]...
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Jul 10, 2011
I see tons of these in my dmesg, and it's causing my virtualbox vms to crash with disk IO errors. It's only affecting the Linux guests. What would cause this?
Code:
INFO: task tar:1865 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[code]....
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Jan 13, 2011
on a fresh install of slackware -current x64, the first thing that i did was download and install opera. now, whenever i start kde, and run opera, X crashes with lots of crazy errors, usually in the format of:
/usr/bin/akonadi*whatever* cannot connect to x server :0
/usr/bin/akonadi*whatever* has crashed too many times and will not be restarted.
and then i get spat back out at the CLI. opera works fine in the other Desktop Environments, and i'm posting from xfce right now, so i know its an issue with akonadi. i would like to use KDE as my default desktop, but i dont want to use it without all of its features
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Jul 18, 2011
I did install QLandkartGT and the plugin to use Garmin with it and it looks like it work, but when I do press "Live Log" I get the error message; "Device Link Error. Failed to request real time position. Realtime thread failed. Failed to configure USB: could not set config 1: Operating not permitted".
I also get a similar error when trying to download tracks; "Failed to download tracks. Failed to configure USB: could not set config 1: Operation not premitted".
My guess is that Ubuntu do not allow programs to use the USB port, so my question is how I do allow this program (or all) to use the USB ports.
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Jan 3, 2010
The install 9.10 CD has a bug and I can't continue with the install after booting up and selecting the language. My screen ends up having vertical green bars. Also get a bunch of sr0 read errors. I used the same CD to install on my laptop, which went well. I am currently using 9.04 and it work flawless
The mobo I am using
ECS GeForce7050M-M V2.0 motherboard features the NVIDIA Geforce7050PV/nForce 630a integrated chipset
On AMD dual x64
CHIPSET
=======
NVIDIA Geforce7050PV/nForce 630a
NVIDIA MCP68PVNT Single Chipset
GRAPHICS
========
On Chip (NVIDIAGeforce7050-based with 2D/3D graphic engine)
Integrated DirectX 9 graphics processor
Share Memory: Maximum up to 256MB
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May 29, 2010
I just installed Ubuntu 10.04 on my system, and I put in a really old game CD for my really old computer. I cannot run the setup program , however because "it is not executable". I can't change this , because it is read-onlybut I can't chane this either. As I'm new to this, I was wondering .
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Feb 15, 2011
I have a netbook with Ubuntu 10.10 installed in it,and a Pc with also ubuntu 10.10 in it , but x86_64.
I want to copy some iso files and data from my user home directory on the netbook , to the user home directory of the other pc , using a 8 GB usb formated in ext3 with gparted in my pc.
One iso is a windows 7 one to burn then with K3b , as i need to have windows installed in that box. Also of another iso that i have to burn too (windows 7 recovery disk) , and 3 anti-virus trials for windows.
As the usb is owned by the root (or more properly the mounting point,no?), and i can't use my user to copy data to it i usually do :
Usually , what i use is "sudo nautilus" then go to the place where is the data , copy it , and paste it then in the usb. Then in the other pc i do a chgrp and chown to the iso or file.
But , perhaps this is not the better approach. I have investigated a bit , and i think that i have found a better way , but i have some dudes.
The method is change the owner,group and permissions of the mounting point:
Code:
cd /media
ls
umount /dev/sdb1
sudo mkdir usb
[Code].....
If i do this steps in both computers, with each user,in the netbook i can copy the iso to the usb (as fox can write to the mount point of the usb ), but can the other user in the pc 'mulder' read the iso , so be copied to /home/mulder, and then be able to burn it in k3b with success ?
I suppose that having 766 , it should be able to read it , but would have the own of the file ?
How important is not to only be able to read it , but also own it ?
I suppose if the user ID is the same , wouldn't be any problem ,as each ubuntu would supose that the file is owned by their user.
Perhaps the user name change,but if the ID is the same , the user is the same for ubuntu , not any different, no ?
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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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May 31, 2011
Recently i acquired an electroencephalograph (EEG) and started to experiment with it, and i need some way to write or send a couple of Hex numbers to the EEG so it will start working, and then to save the data on text file, or at the very least see the output on the terminal using C or C++, i found some programs around the forums but none seem to work properly and more often than not, The EEG is recognized as /dev/ttyUSB0 has a baud rate of 921600.
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Mar 28, 2011
I have a server that has a Fibre Channel mount that is having issues. When I can in this morning I found that it had switched to read only. Now looking through /var/log/messages I see that there are errors reported on the disk. I know that i will need to run fsck on it, but I do see lines about the device mapper failing for mpath0 first, which is the device which is mounted. I am wondering if someone can take a look and see if this is just a drive issue, or an issue with the fibre channel connection.
uname -a
Linux server 2.6.27.25-78.2.56.fc9.x86_64 #1 SMP Thu Jun 18 12:24:37 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
Mar 28 00:12:36 server kernel: sd 4:0:0:0: [sdb] Result: hostbyte=DID_BUS_BUSY driverbyte=DRIVER_OK,SUGGEST_OK
Mar 28 00:12:36 server kernel: end_request: I/O error, dev sdb, sector 314570452
Mar 28 00:12:36 server kernel: device-mapper: multipath: Failing path 8:16.
Mar 28 00:12:36 server multipathd: 8:16: mark as failed
[Code].....
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May 19, 2011
I've got a Lucid system (normal Ubuntu, not any of the derivative distros) which has been throwing up the following error message this morning when trying to boot:
Code:
error: couldn't read file.
error: you need to load the kernel first.
[code]....
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Jan 12, 2010
i know that chmod +x makes a certain file executable but how do i make a file read and write.
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Feb 25, 2010
I would like to be able to read and write on hd formatted as Hfs+ not journaled...I know it is possible, but still I can't since ubuntu mount them with a different user: 99.If I add my user to the group 99 will be fine? or exist another way to write on such file system?if use hfs+ not journaled it will be less safe for the files?
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Sep 7, 2010
I have a file system that I can't seem to read and write to. I've tried everything I can think of.
Code:
root@xubuntu:/mnt/t1# ls -la
ls: cannot access .Trash-1000: Input/output error
[code]....
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Nov 27, 2010
If I have an external hard drive NTFS it is as safe to read/write on it from either Win XP and Ubuntu?
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Mar 13, 2011
I was wondering if anyone knows how to read write a ntfs partition on thats on a separate linux machine ?
Is that even possible from one linux machine to another ?
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May 16, 2011
Is there an easy way to read/write to a mac partition inside ubuntu 11?
Any graphical ways to mount / umount?
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Jul 14, 2011
When i boot from live USB, i can't write anything to it, because the 'Filesystem is read-only'. How can the boot USB be mounted as read-write? Maybe some boot options are needed?
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Jul 15, 2011
I want to make a new partition that I can read and write to from Ubuntu 11.04 and Windows 7. I haven't used Ubuntu much since 8.10 and it seems that I remember it being much easier to do then. I'm using this partition to store my music, pictures and videos on if that is of any relevance. I also need this to be something that can't mess up my windows side of my computer as I need that for work.
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Mar 3, 2010
I have a VIA EPIA motherboard with a VT1612A integrated soundcard. With Linux Kernel 2.4.22 I have no problem reading from the soundcard using a custom application. With Linux Kernel 2.6.30 I am getting read errors that present themselves as corrupt samples.First, a small, pseudocode version of the application ...
Code:
int dsp = open("/dev/dsp", O_RDONLY);
ioctl(dsp, SNDCTL_DSP_CHANNELS, &(int){ 2 });
[code]....
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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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May 15, 2010
I recently installed Ubuntu 10.04 using Wubi on an ACER Aspire 5000 XP laptop. Everything runs ok and I can access my Windows folders from Ubuntu through the host directory but only as Read Only. I have checked to make sure that the Windows folder I want to access (My Documents) is not designated as Read Only in Windows.
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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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Nov 28, 2010
I have shared two external harddrives via samba on ubuntu, but only I can access it. The reason being is because I have logged into linux, and become the owner of the external hdd's. On the permission properties, I can see that the group I have created every other user under has "No Folder Access", and if I change this it reverts back instantly. So frustrating, I've tried to chmod it which hasn't done a thing. The owner of the external hdd's seems to be the only person who can access it over samba.Is there anyway I can get normal users to just read and write to external hdd's?
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Jan 12, 2011
Just wondering if there is a way to show the stats of the hard drive(s) in the computer mainly the current read and write transfer rates. Similar to the network graphs that show the Download and Upload speeds, but concerning the hard drive(s) in the computer. I know you can monitor the hard drive temperature, but I haven't seen anybody monitor the stats for the hard drive.
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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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Mar 22, 2011
I am not the best with Linux but at the same time like to think I am not the worst, Anyways like stated above my dvd drive is saying its read only and i would like to make it read/write here is some info:
*-disk
description: ATA Disk
product: ST3500418AS
vendor: Seagate
physical id: 0.0.0
bus info: scsi@0:0.0.0
logical name: /dev/sda
version: CC46
serial: 9VMRTLT1
size: 465GiB (500GB)
Capabilities: partitioned partitioned:dos
Configuration: ansiversion=5 signature=0005ce96
*-cdrom
description: DVD reader
product: DVD-ROM SD-M1612
vendor: TOSHIBA
physical id: 0.0.0
bus info: scsi@5:0.0.0
logical name: /dev/cdrom
logical name: /dev/dvd
logical name: /dev/scd0
logical name: /dev/sr0
version: 1806
capabilities: removable audio dvd
configuration: ansiversion=5 status=nodisc .....
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