General :: How To Write To A Read-only Filesystem

Feb 19, 2011

I have been given a headless linux system running from a SD card. I get into it by putty, directly to root, not other user and even /home dir. Whatever I copy or write will dissapear because is ro.

my etc/fstab file is:

none /dev/pts devpts gid=5,mode=620 0 0
none /proc proc defaults 0 0
none /dev/shm tmpfs defaults 0 0
/dev/hda1 /boot vfatnoauto,rw 0 0

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General :: Remount Root Filesystem As Read/write After Modify Readonly-root File?

Dec 21, 2010

My linux distro is CentOS 5.3. Today I edited /etc/sysconfig/readonly-root and set "READONLY" to yes, now my /etc/sysconfig/readonly-root file is like this:

# Set to 'yes' to mount the system filesystems read-only.
READONLY=yes
# Set to 'yes' to mount various temporary state as either tmpfs

[code]...

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General :: External Drive Read Only - WARNING! Running E2fsck On A Mounted Filesystem May Cause SEVERE Filesystem Damage

Mar 24, 2010

I've had a look at some similar threads but as I'm very new to linux they're already a bit technical for me. Sorry, this calls for someone with patience. I gather from other threads that disconnecting an external drive without unmounting is a no-no, and this seems to be the likely cause. Now the disk is read only and I'm unable to change any settings through the usual control panel on ubuntu. I'm just not familiar with the terminal instructions. I tried to cut and past a few command lines from other threads but I got some warnings that proceding could damage data. Like this one: WARNING! Running e2fsck on a mounted filesystem may cause SEVERE filesystem damage.

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General :: Windows Access The File From Ubuntu Got Read Only Even Though Have A Full Permission To Read, Write And Execute The File?

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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General :: Script To Check If A Filesystem Is Read-only?

Jul 6, 2010

write a script that will check all filesystems to see if they are read-only.

I have come up with ...

df -h > /tmp/mount.lst
awk '{print $6}' /tmp/mount.lst > /tmp/mounted_systems.lst

This gives me ..

Mounted
/
/boot
/dev/shm
/proc

So now I have ..

How do I automatically get rid of the 'Mounted' header in my /tmp/mounted_systems.lst file ?

Also, I don't want to check the /proc filesystem, so how do I remove that within the script too.

Then I will run ...

while read dir
do
touch $dir/read_only_test
done < /tmp/mounted_systems.lst

If the filesystem is read only, I want that filesystem name to be listed into another file.

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General :: Cant Read Filesystem Type On Windows Partition?

May 27, 2011

I had installed ubuntu 11.04 on my system along with windows vista. After a few days, i decided to remove ubuntu so i just logged into windows and formatted the ubuntu partition using the windows partitioner, then extended my main c: drive to span the whole disk so that i was left with a single partition with only windows vista on it.Later when trying to restart my system couldn't log back into windows.I kept getting a prompt sayinggrub rescue>After googling around a bit i shrinked and created another partition the disk again and installed ubuntu on it again.still. =/GRUB doesn't show any windows entry.I noticed something strange though that when i tried viewing my partitions using parted i didnt see any filesystem type listed besides my windows partition (/dev/sda3). I doubt that is why GRUB does not show any windows entry.Also i manually tried to boot into windows from the grub prompt using commands...root(hd0,3)chainloader +1bootbut it says 'invalid signature'Did i somehow corrupted my windows partition during resizing and installing/un-installing? Plus i also booted with the windows installation dvd and when i typed bootmgr /fixbootit said something like no valid filesystem found.

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General :: Server Filesystem Enters Read Only Mode Automatically?

Nov 28, 2010

I am running a dedicated server with linux cent os 5.5 32 bit with lighttpd, php 5.2.14 and mysql

I am getting problem in my server. The filesystem enters read only mode automatically and then I can't edit any file in my server. This happens by itself. I tried to run fsck command and it gives the following output:

Code:
[root@server]# fsck -A -y
fsck 1.39 (29-May-2006)
e2fsck 1.39 (29-May-2006)
/: recovering journal
Clearing orphaned inode 11108656 (uid=0, gid=0, mode=0140777, size=0)
Clearing orphaned inode 13631499 (uid=27, gid=27, mode=0100600, size=0)

[Code]....

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General :: Read And Write The HW Clock?

Feb 22, 2010

how to read and write i.e setting of hardware clock through c program on linux

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General :: Read Mp3 Filenames From A Dir And Write Id3?

Nov 30, 2010

if i have a dir with several mp3's files:

example:

[root@xxx]ls -l
-rwxr-xr-x 1 web2 client1 6222573 Nov 26 17:34 01 Artist1 - Song1.mp3
-rwxr-xr-x 1 web2 client1 4989384 Nov 26 17:34 02 Artist2 - Song2.mp3
-rwxr-xr-x 1 web2 client1 6987438 Nov 26 17:36 03 Artist3 - Song3.mp3

and i need to update the id3 tag of all files with the command:

/usr/bin/id3v2 -a "Artist1" -t "Song1" Artist1 - Song1.mp3

how i do a loop to read the filename and execute the id3v2 command for each file, as i have filenames with spaces and special chars ex:"".

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General :: Read/Write Xml File Through C++ Code?

Mar 18, 2011

I am trying to write a C++ Code to read write a XML file in C++.I researched a lot and find xerces is used for that but I am not able to write the code for that.Please provide me some links on how to run a code that R/W a xml file in C++.

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General :: Read/write Files In C Language?

Sep 8, 2009

Such as the title

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General :: How To Read - Write On NTFS Partition

Aug 27, 2010

All my important data like ebooks and some programs are in a ntfs partition...when i login to my redhat i am unable to access that partition..

How to access(r/w) that partition in linux(Red Hat)?

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General :: How To Read/write Physical Address

May 17, 2010

One of the tasks I want to do is to read/write from/to any physical address. My question is how do I get a physical address on my Linux desktop. I was thinking of using some utility to dump my BIOS settings, and modify a "not so important" memory address there? Is this possible. Otherwise is there any other physical address I can read/write

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General :: No Read / Write Access To Ipod?

May 17, 2010

I'm using Arch right now and i'm having problems syncing my ipod with Amarok (KDE). Everytime I would want to sync a song, it would give me access denied. it is currently mounted at /tmp/ipodbxQtrU and i have tried using chmod with no luck. I was in root when i used "chmod -R user ipodbxQtrU" and it said operation not permitted.

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General :: Chmod To Allow Read And Write Permissions For Directory?

Mar 31, 2010

I have created directories in root. I am looking for the chmod command to allow all users read and write permissions to a specific directory. I have done chmod 775 for a file but I need this for a directory. This includes permissions on all files and sub directories.

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General :: Set A Group With Default Read & Write Permissions?

Jun 14, 2011

What I want to be able to do, is have create a group, for example called "group1" and set its default permissions to read & write, instead of the usual just read.

So when I add a user into "group1" they automatically have read & write access to all files & directories which is in "group1".

Oh & I use crunchbang 10 (statler) for my desktops & Ubuntu 11.04 for my NFS/print/SSH/etc/etc server

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General :: Group Control - Read & Write Permission ?

Dec 21, 2010

I have a file the owner is root:root ( mode is 644 ), I want to release read & write permission to a non root user ( eg. admin_usr ), I tried to create a specific group ( eg. ADM ) and release it to root user and admin_usr ( by adding this users to ADM in /etc/group ) , but it is not work, if preserve the file mode to 644 , is it ok? how to do it if I want to have read & write permission in my case ?

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General :: Make The Root Device Read/write?

Mar 4, 2011

I need to change a filename but when I boot up I get the message root device is read-only. Is there a way of changing this so that I can change the filename. I have a Mac Pro running Leopard OSX. The graphics card an NVIDIA 7500GT or driver has failed. It was suggested elsewhere that I change the relevant kext files to filename.kext.old, which I did, now when I try to boot start in OSX I get a message in various languages telling me to restart. I have tried booting in safe mode and from original Installation CD. In Safe Mode I get the same multi language splash screen, from CD I still have the graphic card problem, screen freezes and artifacts appear. So I boot up straight into CLI by holding down CMD-S hoping to be able to change filenames back but it says device read-only.

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General :: Disc Able To Read And Write Data For All Users?

Feb 15, 2010

How make, that disc be able to read and write data for all users? I have Ubuntu 9.

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General :: Read / Write Ext4 Partition From Windows 7?

Mar 31, 2010

I installed fedora 12 and windows 7 in pc. i can not access fedora partitions from windows. which software is suitable for this?

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General :: Serial Port Configuration - Write Or Read

Dec 1, 2010

I have a minilinux that I being working on, the problem now is that the serial ports doesn't seem to work (I have 4 serial ports).They don't write or read.

I run the command setserial g /dev/ttySx and it says that his IRQ are 3 or 4 (3 for ttyS0 and ttyS2 , 4 for ttyS1 and ttyS4)�but when I run the command: dmesg | grep ttyS the IRQ�s are 0 for ALL my serial ports� could be this the reason why my serial ports aren�t working right??? And if it is how can I solve the problem??

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General :: File Permissions - Read Or Write Access To Different Users

Jul 8, 2010

I own a particular file on a Linux system. I would like to give 2 groups (accounting, shipping) read access and only read access, and 3 users(Mike, Raj and Wally) write access and only write access. How can I accomplish this?

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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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General :: Allow Specific User Permission To Read / Write Folder?

Feb 4, 2011

allow specific user permission to read/write my folder

I have a folder called /TAR/Sketch

I added a new user, named Snoopy, I want to grant this user the ability to add files & directories to this folder which is under the group Sketches and the owner is me.

How can I accomplish this ?

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General :: Working Of Read & Write Request To Mass Storage

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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General :: Write Operations Being Performed On File With Read-only Access?

Aug 24, 2010

I'm having this problem wherein the ppp program is altering the /etc/resolv.conf file when connecting.This, despite me having set file permissions to read-only. What could be the problem here?

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General :: Find A Test Tool To Write And Read IO On A Volume?

Nov 23, 2009

As part of my testing, I need to find a tool that will write/read IO to a volume. I need it to fill the volume and then read and verify that the write was successful. hroughput stats would be a plus, but right now, IO verification is a must.I need the volume to write, read, verify, then repeat until the volume is full.Can anyone point me to a free tool that can manage this?

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General :: Mount - Disable Read And Write File Cache On Partition?

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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General :: Cannot Read / Write SD Card After Improper Format (sector Size 0) - Fix It?

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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General :: Allowing Read Write To Ext3 Partition To Non-root Users

Mar 18, 2010

I need to allow non-root users to read/write on an ext3 partition.

Below is the relevant output from fdisk -l

Code:

The partition in question is /dev/sda4 and it is mounted as /Data (setup during installation).

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