Every time I mount one partition manually as read write it works fine for a couple of minutes before reverting to read only. It still appears as read-write when I list the mounted directories but won't let me write to it. I have tried unmounting and remounting it, but after a few minutes it always ends up as read-only again.
$ mount
/dev/sda3 on /scratch type ext3 (rw)
$ mkdir /scratch/file
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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:
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Both drives *appear* to have filesystem issues. When I run an fsck on either drive, I get:
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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:
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Here's the contents of my /etc/fstab:
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Here's the output of "cat /etc/mtab":
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Here's the output of a mount command:
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Here's the output of fdisk on the device in question:
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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.
I am using ubuntu 10.04.My samsung e2120 has external micro sd card of 2GB.When i connect mobile to computer via cable in windows , it works normal as USB mass storage as configured by me in mobile settings.But in case of ubuntu 10.04
Code:
$cp /data/to send/khatarnak shayri.txt /media/E0FD-1813/
cp: cannot create regular file `/media/E0FD-1813/khatarnak shayri.txt': Read-only file system
[code].....
I am using Gentoo Linux and for a while now, the root file system is mounted read-only on booting. For obvious reasons, this is quite annoying as most services do not start up correctly (I do not use a separate file system for /var). After the system is up, I have to log in, remount the root file system read-write, fix /etc/mtab, mount all other file systems in from /etc/fstab and then start up all the missing daemons. I know that there are ways to make a system run properly with a read-only file system, but I would rather restore the old behaviour of a writable root file system.
The strange thing is that after running mount / -o remount,rw, the file system is mounted in writable mode without any errors. I suspected some problem with fsck, but now I have disabled automatic file system checks on the partition (tune2fs -c0 -i0).When I run dmesg, only these lines mention the partition at all, although I am not sure if not something gets lost because /var/log is not writable:
EXT3-fs (sda5): mounted filesystem with writeback data mode</code>
EXT3-fs (sda5): using internal journal
The line in /etc/fstab looks like this:
[code]....
I have a 3ware controller that has a RAID 1 of two SATA disks.After an outage, the linux box (which is running ubuntu), restarted and the partition is now mounted read only. I only have the "/" mount point (this is a test server).Now, if I go to the 3ware controller by pressing ALT-3 while booting, I don't see any indication that there is something wrong with the disks.If I let the computer boot, I'm asked by fdisk if I want to fix/ignore/etc the inconsistencies found.
View 1 Replies View RelatedI've been using Ubuntu 10.10 for just under a week. Recently, a partition called 'Data' has disappeared, and all my music and documents along with it. The folder is not to be seen in Places or on my desktop. My only way of finding it is to go to terminal. But when I try to open it there I get an error saying I don't have permission to read it. In Puppy Linux and SliTaz I can easily find the partition and read it. What should I do to bring it back in Ubuntu?
View 3 Replies View RelatedI'm using LVM-based partitioning. I can not mount one partition. Here is some information I can provide.
Untitled-1.png
snapshot7.png
snapshot8.png
This incident happened after I try to encrypt this partition and then an error message appears. If not mistaken, it contains an error number (I forget) and a warning which reads that can not remove the LABEL on the devices.
I have two ext3 lv's of 4GB and 10GB in my hda8 partition, and they are automounted by /dev/mapper/ in my /etc/mtab files in each of the four distros (Suse9.3, OpenSuse10.2, kubuntu7.04 and Debian Lenny 5.0.3). Since ext3 is a journalled fs I feel I ought to fsck their integrity every 3 months or so, however I don't know
a) whether they must be unmounted before running fsck,
b) whether I should use a live CD such as knoppix to run the fsck command, and
c) whether I can and/or should run fsck /dev/hda8, or whether I should somehow fsck each lv seperately?
I managed to setup an encrypted partition that's mounted on boot using dm-crypt/LUKS.
The relevant entry from my /etc/fstab:
/dev/mapper/st_crypt /media/st ext4 defaults 0 2
The partition is mounted at boot, and I can write to it as root just fine, but I have no idea how to make it writable by a normal user (i.e the users group).
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.
View 5 Replies View Relatedusing suse 11.3 and kde 4.4.4 on the mounted fat32 partition I cannot change icons partition is mounted in fstab in this way:/dev/sda8/ /dati vfat user, users, gid=users, umask=0002, utf8=true, 0, 0.I can create files folders modify, move and save them on the partition but if I try to change the icon (in dolphin right click>properties>click on icon) of the /eros folder (or any other folder or link) system gives me
this error:impossibile salvare le proprieta' , non hai accesso sufficiente per scrivere su /dati/eros/.directory tha in english is something like this: impossoble save properties, you havent enough permission access to write on /dati/eros/.directory this happen also as superuser I remember that with suse 11.0 or 10.3 I was able to change icons on fat32 partitions, now with 11.3 I cannot, there ought to be a way to do what I did with the previous version with this 11.3 brand new ad more advanced version shouldn't it?
Is there a program that will reread the partition table and update the kernel even if one of the unmodified partitions is mounted? I installed my system on one partition, then I added another with free space. Now I want to format the second partition, but the kernel doesn't know about it yet. I tried sfdisk -R /dev/sda, but it refuses while the root partition is mounted. Is there anyway I can avoid rebooting?
View 2 Replies View RelatedI have Ubuntu server 8.04. I have 4 hard drives of 149Go each. Size of a mounted partition is smaller thant the partition itself :
- first drive is the system
- I mounted the 2nd drive (ext3) on a folder, but the Size is 941.89 MB instead of 149Go
- same for drive 3 monted on another folder, but the Size is 941.89 MB instead of 149Go
I have an HP laptop with a recently installed copy of Mint 8 KDE Community Edition. I created the initial admin user account ("joseph") when I installed.
I had an existing home directory under a different name from another installation, so I added a user with that name ("joe") and imported a copy of the original home directory. The user "joe" didn't have the same admin privileges as the initial "joseph" account, so I added "joe" to the sudoers file and the same groups as the initial admin user.
Everything works perfectly under this arrangement, for the most part. Now here's the problem:
I have a T-Mobile G1 phone that uses Android. I've rooted and ROM-modded the G1, and have the microSD card in the phone set up with two partitions. The vfat partition stores all the photos, music and other stuff the phone needs. The ROM mod allows me to store apps on the SD card, so that second partition uses ext3 for its file system.
When I'm logged in as the admin "joseph" account and I insert the SD card in the laptop's card slot (or plug the phone into the USB port), the SD card can be mounted, and I have full access to both card partitions. I can see all folders. I do this to backup the contents of the card to an external drive (especially the apps in the ext3 partition, since that's been trashed on me once before on the phone).
However, when I log in as "joe", I cannot view the contents of the ext3 partition at all. I can see the vfat drive fine, and the ext3 partition mounts, but with user/group "joseph/joseph." When I open Dolphin to view the mounted ext3 partition, I get the error "could not enter folder /media/disk-1" at the bottom of the view window in Dolphin.
Here are the relative entries returned when I run "mount" to view the mounted drives:
/dev/mmcblk0p1 on /media/disk type vfat (rw,nosuid,nodev,uhelper=hal,uid=1001,utf8,shortname=mixed,flush)
/dev/mmcblk0p2 on /media/disk-1 type ext3 (rw,nosuid,nodev,uhelper=hal)
Note that the uid listed on the vfat mount is 1001, which is the gid for the "joe" account.
I know there must be a configuration setting somewhere that will allow the ext3 partition to automount under the "joe" user account. I suppose that using the admin account to change the permissions would be the easy way to do this, but there must be something that would do it automagically. I've ripped through all the config files I can find, but can't seem to find anything that would help.
All I'm looking for here is enough access to be able to copy the directories on that mount to my external drive.
I have a low maybe medium experience with linux and no experience with unix and migrating from freenas to Ubuntu.I'm trying to transfer 12 TB of data from UFS file system to ext3 file system under Ubuntu 10.04. The server has two 16TB virtual disks (raid10) and one 4TB virtual disk (raid10 too).I mount the UFS virtual disk in Ubuntu with this command:
Code:
mount -r -t ufs -o ufstype=ufs2 /dev/sda1 /home/ufsdisk
I am able to read only 6TB of data instead of 12TB. The missing folders can be seen in
[code]...
I have an external Western Digital Hard drive with two HFS partitions with journaling disabled.When I connect it to a computer running Linux (Debian or Ubuntu), frequently both partitions are mounted read-only. In the past, mounting them on my Macbook and executing the command to disable the journaling often worked (even though it would tell me that journaling was already disabled) but I would love to have a solution which works every time.
View 1 Replies View RelatedI have a linux formatted partition. I'm trying to open that partition inside windows 7. And shrink it so that I can have more space. But all the options except delete and help are grayed out. What do I do?
Tried ext2explore but it seems it can only perform a copy of the whole partition.
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Currently when I insert a removable device, it is auto-mounted as readonly. To use it I have to do this every time.
Code:
sudo umount /dev/xxx
pmount xxx
This applys to every removable device I have, and did not exist on my previous distro. Debian amd 64 Squeeze [URL]
I am trying to smbmount a Samba share to be used on my Ubuntu 10.04 desktop.I created a mount point
Code:
sudo mkdir /mnt/smb-sambaserv-myshare
and added the following to my fstab:
[code]...
I need a program that allows windows xp to read EXT4 partition. ext2explore.exe is not good, it doesn't give other windows applications direct access to ext4.
View 5 Replies View RelatedAll 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)?
On my OpenSuse 11.3, I mounted a new disk (/dev/sdb wich is on /dev/sdb5) as /mnt/ssd folder
I changed permission of /mnt/ssd to be owned by root, and group users and mod to 777. drwxrwxrwx 4 root users 4096 2011-05-08 10:08 ssd
I can enter this folder as any user.
Within it, I created folder oradata:
total 20
drwx------ 2 root users 16384 2011-05-07 17:46 lost+found
drw-rw-r-- 2 oracle oinstall 4096 2011-05-08 10:08 oradata
[Code]....
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.
View 5 Replies View RelatedI'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:
I installed fedora 12 and windows 7 in pc. i can not access fedora partitions from windows. which software is suitable for this?
View 8 Replies View RelatedHow 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.
I have dual boot: Ubuntu 10.04 and Opensuse 11.2.Howto mount Read Only ext4 partition from Opensuse in /etc/fstab under Ubuntu?
View 3 Replies View RelatedI 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).
I want to change my sda2 partition to ntfs type. i have installed GParted but it is returning a strange type of error. Here is the error dump file...
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WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot. WARNING: the kernel failed to re-read the partition table on /dev/sda (Device or resource busy). As a result, it may not reflect all of your changes until after reboot.
When I powered-up my computer today I received the message that the home partition listed in /etc/fstab cannot be mounted and to press ESC to go to the recovery shell.
My computer is dual-boot, with Windows on the first hard disk (sda) and Ubuntu 9.10 on the second hard disk (sdb); I am using Grub version 1.97 beta4. The home partition is thus on sdb2 and the file system is ext4.
The /etc/fstab file contains all the partitions and has not changed since last October. Also, when issuing the command fdisk l, all partitions are correctly displayed, including the home that cannot be mounted.
Finally, the command fsck /dev/sdb2 quickly returns the result that /dev/sdb2 is clean!