Ubuntu :: Cannot Change The Permission Into 'Create And Delete' While Its Saying "Read Only Filesystem"
Apr 5, 2010
I have a near 200 GB partition. Fat 32.I was copying some files into that and suddenly my computer shut down due to overheating .. am having this problem for some days ..Anyway .. After I restarted it I found I am not being able to any thing except copying for the drive .. Otherwise I dont have permission.I cannot even change the permission into 'Create and Delete' while its saying "Read only filesystem" ..When I restart the comp, everything seems okay .. but after a few seconds the problem arise .. it become inaccessible .. I simply cannot even creat a folder ..
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Jul 13, 2010
I'm a new Ubuntu user, I just installed Ubuntu today and I'm loving it. But this issue has been driving me nuts all day, I've searched for hours for something like this and all posts were about external hard drives. I installed Ubuntu 10.04 on my MBP 13" then dual booted into Ubuntu. I can mount and access my MBP hard drive, but when it comes to the Mac home user files, I don't have permission to even READ.
How can I change that? I tried doing so by dual booting into Mac and changing the folder permissions and also making them shared folders but nothing worked.
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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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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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Apr 18, 2010
Instead of moving to trash, how can i make the delete button delete? Delete is already enabled on the right click menu.
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Nov 25, 2010
I am trying to change the owner permission of file as "read only" when the file is rcp remote copy ) from server to another for security reason. Any way to change to permission as readonly access for owner and group ( 550 )when transfer the file using the rcp command ? I tested but still retain the original permission as source file.
Version : RHEL 5.2
Command : #rcp(local file)(/destinationserver/
/folder/file)
[code]....
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Mar 16, 2011
I logged in via ssh to a computer and I can delete stuff that I should not be able to delete. I figured if the owner is different and the group is not mine and iit is 744 I should not be able to delete it...so I tested with "file1"..and I dont see my mistake:
users are "itv-storage" and "admin" on pc.
HTML Code:
itv-storage@pc:/RAID5/storage/test$ ls -la
total 12
drwxrwxrwx 3 admin admin 4096 2011-03-16 19:28 .
drwxrwxrwx 9 admin admin 4096 2011-03-16 18:37 ..
-rwxr--r-- 1 admin admin 0 2011-03-16 19:28 file1
drwxrwxrwx 3 itv-storage itv-storage 4096 2011-03-16 18:46 folder1
itv-storage@pc:/RAID5/storage/test$ rm file1
rm: remove write-protected regular empty file `file1'? y
itv-storage@pc:/RAID5/storage/test$ ls -la
total 12
drwxrwxrwx 3 admin admin 4096 2011-03-16 19:32 .
drwxrwxrwx 9 admin admin 4096 2011-03-16 18:37 ..
drwxrwxrwx 3 itv-storage itv-storage 4096 2011-03-16 18:46 folder1
itv-storage@pc:/RAID5/storage/test$
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Jun 1, 2011
Is there no good way to assign permissions so that users can create files, modify files but cannot delete them? I know there's the sticky bit, but all that does is say that only the owner (who is a single user) is able to delete them. Ideally, what I want is to be able to use the sticky bit, but apply it to the file's group, rather than the file's owner.
Here's the example: I have a folder that is shared publicly. I want people not belonging to the folder's group to be able to create files, modify files, but not delete them. I want the folder's group to have full control. This would be possible if the sticky could apply to the folder's group, instead of the owner. I've looked into ACLs, but from what I gather, it's still just assigning permissions "none" "read" and "write," none of which would stop someone deleting a file, while still letting them create or modify (unless they were the owner, which is not helpful).
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Jan 29, 2011
While trying to boot into the normal user the system aborts the login and tells me that /home does not have write permission.
The login manager gives:
Code:
If I log in as root and do a
Code:
Or to open some files, it works and no problem seems to exist.
All this happened for the first time after running luckybackup to fusion the old files of one home directory under EXT4 with the new files from my notebook (ext3, Opensuse 11.1 KDE3) in order to come to a unified home. But then the system did not boot any more. I tried to change the owner but some files did not have write access (not even as root, "the file does not exist"). So I thought I might have a a file system problem.
So I thought: unmount the /dev/sdb1 and then do a fschk on it. Runs and was perfect. So I did run it with forcing to control inode per inode.
No error.
So I thought: you screwed up the system. I then decided to reinstall OpensSuse11.3 from the scratch and create the same user for home. I formatted the rest (/swap /boot /root) and left only /home. Installation runs brilliantly, all ok, it comes to the login..................
Code:
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Jun 14, 2011
This is very bad even in 11.04! I have an usb disk 40 Gb. And I was loading it with data real fast (svn). At once I could no more write, Read-only file system was reported. I reckon that problem from years ago on redhat, so I try to fix it. But It became worse. It was severe damaged. I created a new filesystem while the disk was out the usb-box and directly connected to de IDE. Started all over, and the error also. Tried to repair with no luck. It looks like the journal get overrun but I'm not sure. However I do think its reproducible. I did it 3 times now and now I am very sick of it. This is happening on a updated 10:10 to 11:04 system, a few weeks ago.
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Mar 31, 2010
How can i read out the superblock of a filesystem?
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Mar 17, 2010
Whenever i copy ELF or BIN files from the filesystem of linux i must get permission denied. For this case i have gone through the linux security module but didn't get much help regarding the permission denied only in case of copy of ELF and BIN files from filesystem. how can i proceed in this. WORK DONE:
1. Downloaded linux-2.6.25.14
WORK NEEDS TO BE DONE:
1. compile the kernel with some modifications in linux security module to get the desired results but this time i am unaware of that.
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Mar 11, 2011
I am installing Ubuntu 9.04 Desktop on my system. using entire disk. my disk is new one. first time i installed ubuntu on it successfully, used it and installed new kernel and some upgrades. all were successful.but on installing some drivers, its files system corrupted. so I had the need to re-install the OS again. NOW , when i am installing the OS, it gives error "(Errno 30] Read only filesystem" explaining that either CD/DVD is corrupt or HDD is corrupt. temperature of the environment may be high. I changed the system , ehanged the environment, moved to some cool place, changed CD drive and CD (after making new one from ISO), changed the HDD but all useless, error is there,
while installation is in progress my sda1 is mount on /target. when i see fstab, here in the line of /dev/sda1 ,error=remount-ro is observed. sometime installation gives error no 5 sometimes it gives error no 30 but both the errors convey almost same message explaining that either HDD is corrupt or CD. As i have explained that I changed every thing including HDD and CD but the error is same.
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Aug 18, 2011
I want to install 11.04 next to my working 10.04 system. First I need to make room for the new system so I have booted from a live cd and started GParted. In GParted the partition with the 10.04 system on it, /dev/sda1, has a red circle with an exclamation mark in it and I cannot resize it. When I doubleclick on /dev/sda1 there is the following warning
Quote:
Failed to change to directory '.'(Stale NFS file handle)
Failed to change to directory '.'(Stale NFS file handle)
Unable to read the contents of this file system!
Because of this some operations may be unavailable.
The following list of software packages is required for ext4 file system support: e2fsprogs v1.41+.
The 10.04 system is working and has worked like a dream for a couple of years and the machine has never had any other system on it. Why would the live CD not be able to read ext4 fs?
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Aug 1, 2010
openSuse v9.3 (Yes, it's old)linux 2.6.11.4-21.17-smp i686At some time after July 28 the entire filesystem has become read-only. It was functional on July 28, the last time I logged into the machine and edited a file. Even as the superuser when I attempt to change, say, the permissions of a file, I get:
Code:
> # chmod 777 /opt
chmod: changing permissions of `/opt': Read-only file system
[code].....
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Jul 17, 2009
I have 64bit install with CentOS release 5.3 (Final)It's been stable for about six months. What happened a while ago is really weird, I haven't messed with anything lately but the entire /home filesystem became read-only. Can't write, can't delete to anything on /home. The other filesystems are fine. I am root, and the permissions look normal. My directories and files are writable and readable.
root@atlanta [/home]# touch foo.txt
touch: cannot touch `foo.txt': Read-only file system
root@atlanta [/home]# ls -l
[code]....
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Jul 20, 2010
I can't perform any of those.Except from the Terminal.I didn't edit any permission... nor installed anything.Don't know what to do.Also, "Move to Trash" appears grayed out, in the right-click menu (for all the files/folders).
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Oct 11, 2010
I have an external hdd which is formatted with fat for use by both on linux and windows. The issue is that I can't delete some of the files I have which show up with size 0. Also, the modification timestamp (as detected by Krusader, the file manager I am using) is 1935. How can I delete these kind of files without affecting the running fs?
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Jul 3, 2010
I accidentally changed etc., folder ownership, and now my computer doesn't even start up. I tried starting up in failsafe mode and changing the ownership from the root console, but somehow I wasn't allowed to do that. Then I loaded kubuntu from a live disk and I changed etc ownership to root. I thought that would clear up the mess, but apparently live disk's root is not equivalent to system's: when I try to start up the computer I get a message saying the filesystem is readonly. I'm not too concerned, because I have a complete backup, but I'd rather avoid the time of re-installing all my software again.
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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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Jun 8, 2011
I'm attempting to build a load balancing cluster for shared web hosting clients and the only thing left is security. Given the track record with some of these sites, I don't trust them being centralized. We've had rootkits on some of the other servers that replaced system binaries, mostly ssh to capture passwords. I figured the only real way to lock it down tight enough to keep this from happening is to use a live cd for the filesystem or read-only toggle USB stick. But I also need to mount a rw drive to store the clients data and config files that are bound to change.
Is this really the way to go about this? If so do I simply make a live cd iso and edit the files within to handle mounting a rw hard drive and linking data and configuration files to that drive? I've considered just leaving all the data on the physical hard disk and mounting it as ro on boot for binaries and such but can't that just be changed with the right permissions?
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Oct 28, 2010
I've recently installed Ubuntu 10.10--it had Windows 7 on the machine before but wiped that off so it is not dual boot.
The upgrade manager prompted me to install about 170MB or so of upgrades. I chose to install everything and then rebooted. Upon rebooting I received an error (sorry but didn't record it).
I rebooted by ctrl-alt-delete and then got the error: error: unknown filesystem grub rescue.
How do I get back my installation?
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Apr 23, 2009
I have a system in which I do not have root access to. On that system, I have my own directory which I share with other users. I am trying to clean it up when I noticed that there was a subdirectory created by another users in my group that I cannot delete. It has all the permissions set besides global write. How can I delete this folder without root permission? I can't even chmod or chown it.
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Aug 5, 2010
Some moments ago, I plugged my drive into a computer with some strange data protection software. It turned my drive's filesystem into read only and now it can neither be formatted nor mounted with write option. I've tried
Code:
$ sudo dd if=/dev/zero of=/dev/sdb
but it doesn't work.
The problem is, the computer and the software that have caused this problem has lost forever.
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Jul 12, 2010
[URL]
This problem has arrived again.......I tried the same solution but didn't work out...the problem is described below.
I use Ubuntu 9.10 .
I did this in Ubuntu 9.10 live CD.
quote from terminal :-
ubuntu@ubuntu:~$ sudo mkdir /win
ubuntu@ubuntu:~$ sudo mount /dev/sda5 /win
ubuntu@ubuntu:~$ sudo mkdir /vdisk
ubuntu@ubuntu:~$ sudo mount -o loop /win/ubuntu/disks/root.disk /vdisk
[Code]....
The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
ubuntu@ubuntu:~$ "
> ^C
ubuntu@ubuntu:~$
^^ quote ends.
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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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Aug 23, 2011
Yesterday I post this note, because I've an urgent issue with the filesystem in opensuse 11.4, used like VMWare guest OS, over VMware Server 2 for w2k3 64bit like a host) opensuse 11.4 Filesystem goes read-only in VMware
But, Novell have a fix published for SLES 10, with the 2.6.16.46-0.12 kernel version .
I'm using a Opensuse 11.4 with the 2.6.37.6-0.5-desktop kernel version. May be related with the LSI virtual scsi hardware?
Because exists a fix for SLES 9, 10, RedHat EL 4,5 and Ubuntu 7.10, but doesn't work in opensuse 11.4
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May 25, 2010
I have double boot (windows7 and Opensuse) on my laptop.
My problem is when try to login Opensuse says Read only file system.(While booting a lot of things FAILS(written red) because of Read only file system). So i can't login.
Cause of this problem is want to reach my Opensuse filesystem from windows7.I installed Ext2fsd software to windows7.After installed software can see my opensuse filesystem.But it looks empty from windows7.So uninstalled the software.
After that day try to login my Opensuse.While booting alot of thing fails to load it says "FAILED".and when entered my password after entering my username cant login it says ..... Read Only File System.
How can i make the filesystem Read/write permissions to my opensuse operating system.
I can't use any command beceause can't login. (I will try to boot with Opensuse Dvd)
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Aug 22, 2011
I'm a issue with a opensuse 11.4 guest VM. The root partition goes read-only while the VM was running normally.
I note this /var/log/messages:
Code:
Aug 22 10:57:02 guest1 kernel: [508161.475307] mptscsih: ioc0: attempting task abort! (sc=dc29c5c0)
Aug 22 10:57:02 guest1 kernel: [508161.475380] sd 2:0:0:0: [sda] CDB: Write(10):
Aug 22 10:57:02 guest1 kernel: [508161.475582] mptscsih: ioc0: task abort: SUCCESS
[Code]....
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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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