General :: Don't Have Permission To Read DATA Partition; Partition No Longer Visible
Oct 30, 2010
I'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?
I am a total noob when it comes to opensuse. I just read the reviews and comments from forums taht's why I wanna try this alternative. I have 1 physical drive that has two partitions. 1 is dedicated for my windows OS (20 GB) and the other for my data (approx. 100GB).
How can I install opensuse 11.3 to just 1 partition (20GB) and leave my data partition (approx. 100GB) as it is? Can I still view/access/read the files from my data partition after I have successfully install opensuse 11.3 to my Os partition?
I have an old external 20GB HD formatted with NTFS. It used to be able to mount in Ubuntu just fine. One day I copied a huge file into it, then suddenly it failed to mount. nitially the message was something like the following:
Code: Error mounting: mount exited with exit code 13: ntfs_attr_pread_i: ntfs_pread failed: Input/output error
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...
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.
I usually repartition a disk by backing up, deleting the partitions, formatting them and repartition. I just did a 200 gig backup (so i am safe) and i want to join 2 (ext3) partition together, sdb1 (data4) and sdb5 (data5) into one big partition. Is there a way to do it without scraping the data in sdb5 (data5). It would save me from rewriting the data back to that new partition (200 gig is time consuming).
I have a separate ext4 partition which contains all my data (music, movies, etc). When I delete files from this partition it is very slow because it copies files from my data partition to the Trash folder in my home partition. How can I avoid this? Can't the trash be configured so that it uses a trash folder in each partition instead of copying files to another partition (which is slow).
I'm sure I've done this before and never ran into trouble so it's not like I wasn't thinking, just something went wrong this time and I'm screwed. I'll post a fdisk -l to show ya what I mean.
[root@localhost ~]# fdisk -l /dev/sda Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite) Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Disk identifier: 0x624aa2e0
Well I tried to install Pclinuxos 2010 to the same partitions as Mint 7 and basically just over write it (this I have done before) but this time Pclinuxos says there is a bad block and it can't copy files to / (sda7) I didn't think much of it at the time and thought I would try to install it (Pclinuxos) on a separate 100 gb usb drive and it was a sucessful install.
After booting Pclinuxos I try to access my 1TB sda hard drive and I can ony access sda1 .....when I look at /dev/sda in gparted is shows the whole disk as unallocated.I have done nothing at this point in time other than what I just said because I am very afraid of loosing all my pictures and everything else on that disk....and for those that will say always back up ....if ya think I'm not kicking myself right now your dead wrong......
I have 250 GB HDD, 150 GB has CentOS installed,I have formatted the rest 100 GB in vfat, mounted on /data/ folder, now the issue is only root have the write permission on that folder, i have tried all the commands, however i have reformatted it with ext3 and now issue is resolved, i just want to know that why it is not possible to set the permissin to everyone +w on vfat partition.
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.
I 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.
I am trying to replace an existing ubuntu installation with the current debian testing release. But when it comes to select partitions to install on none of the existing partitions is visible. I only see my SATA hard drive empty. The existing installation of Windows is still bootable and fdisk as well as cfdisk correctly recognize the partition table while parted (which I assume is used by the installation process; all tools run from a live cd) is not:
[root@localhost liveuser]# parted /dev/sda unit s print Error: Can't have overlapping partitions.
I am not sure what parted's error message means. I can hardly imagine that it complains about the logical partitions with in the extended one. The reasons for the trouble might come frome the fact that sda4 is marked as primary partition (see cfdisk output). If this is the case, how can I repair this?
I've decided to install openSUSE on my Dell PowerEdge SC1420. It's got an onboard Adaptec CERC SATA 2S RAID controller that I've used to set up a RAID 0 using 2x 250GB SATA drives. The SATA RAID is enabled in BIOS (which I've updated to v. A04) and the logical device is set to bootable.
openSUSE sees the logical device and sets up 4 partitions (3x Ext4 and 1x SWAP) and install seems to go okay. I get through to the GNOME desktop and everything seems to be working okay until I reboot. Then I get an error saying that no partition is detected from the CERC 2S device.
Can anyone tell me what I'm doing wrong? I've spent the entire weekend trying different configurations of raid and partion file systems! I'm on the verge of buying windows 7 and I guess I'll have to if this just isn't going to work.
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
Well i have an 20GB HDD (/dev/sdb) formated with ext4 and has very important files on it .All of sudden something went wrong and the 20GB partition has been lost . Now how do i have to recover that partition and primarily recover those files . Gparted shows no partition on it but unpartitioned space .
I have a 10gb partition I use for data. The /home is there, and I mount any other data partitions (like /music stuff) onto /data. These other mounted partitions add up to something like 60gb of diskspace, but since they're just mounted on /data, I believe they only take up 4096 bytes per mount point.
Some time ago, I found that the /data parition was full. There was only 330mb of data in /home, so I was perplexed. I found a cache dir under .opera that reported itself as having 132TB (yes, that is terrabytes) of files. I thought deleting the offending directory was the answer, so I deleted that cache dir and every file or subdirectory in it, but the /data partition is still like 99% full. I am a wee bit confused.
This very full /data partition is my only jfs partition. The other mounted filesystems are either ext3 or ntfs. Is it possible that the journal of this filesystem is corrupted? Or is hidden somewhere on the /data parition, taking up a bunch of space? (I obviously don't know enough about filesystem to know whether or not this is a likely scenario.) Is it possible to zero out (or delete and re-create) the journal, if so? The only other thing I can think of is to move all the /home data off, delete the partition, then re-create it and move /home back. I will do that if need be, but I'd rather learn something from the experience, weird as it is.
I am going back to Windows for good. All I need to know is what are the partitions settings so that it will be reconized able in windows. I planning on saving some of my songs and other media that I have collected but I dont want loss all of on some wasted space that isnt readable. So simply put what setting are needed to make a partition visible in windows 7 using gparted.
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.
I'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:
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:
I want to install Ubuntu side by side with Windows. I have a big NTFS partition that has a folder with the same name as my username (let's say "joe"). Inside "joe" I have my personal files. Outside "joe" but still in the partition, there is random stuff that doesn't really belong anywhere, or now useless programs that I had to install there because the main Windows partition ran out of space. If during the Ubuntu installer I choose to use that partition as /home and make a user called "joe", will everything work fine?
While attempting to install FC12, Anaconda took it upon itself to overwrite the partition on my backup disk. Now I need to figure out if there's a way to get at least some of my data back. If there's a better place for this question, please let me know and I will happily move it. Using Linux since 1993, other Unixoid systems since 1986. I bought this machine back in 2004 or so. It was a pretty decent machine back then, but it's showing its age now: 370Mb of RAM, 2 hard disks with 80Gb and 120Gb (I don't think the other specs are relevant, but just let me know if I'm wrong). In a fit of insanity, I decided to install Gentoo on it. Don't get me wrong: I love certain things about Gentoo. But the constant fiddling that's required, while it can be fun at first, gets old kinda quick.
So various and sundry things have been going wrong with it here and there (CD-ROM, sound card, etc ad infinitum), and, finally, it wouldn't even load X any more (almost certainly some final Gentoo update which broke something) and I said "screw it, I'll just put Fedora on it." This is what I use at work, and plus I have a good friend who has far more patience with admin stuff than I do and Fedora is what he knows. So, last night, I pick up an FC12 CD that I have lying around and decide to finally just reinstall the whole thing. I went so far as to buy myself a Passport USB drive, 319Gb, and have been backing up up all my stuff very regularly to that drive. I go through one final cycle of backing up and verifying before I start the reinstall.
So my drive is solid, and contains everything I could possibly need (and probably quite a bit of stuff I don't). After booting into FC12, I used Palimpsest to explore the partitions on the existing hard disks. Not sure which was which, I mounted the Passport, where I have cleverly saved a copy of my fstab. Using this, I can see which of my partitions were /boot, /, /home, etc. Most of my personal data has been put into separate partitions so that I could reinstall without blowing away the data. I hope that I can do that there, but, if I can't, no matter: I have a backup. I find some bits of empty space and delete a few of the partitions and recreate them, consolidating the empty space. Still confident in my backup, of course.
So I run Anaconda. Nothing happens. Eventually, I figure out that it won't run the graphical interface because I don't have enough memory. I can use the text version, no biggie. It gets to the part about the disks. I tell it which hard disk to install itself onto. For some reason I think it's going to pop up and ask me about the existing partitions and whether I want to keep them or rewrite them (maybe that's a previous version of Anaconda? or a different installer altogether, who can remember). It does not. It babbles something at me about LVM (which I've personally never really used before), and then promptly locks up. Obviously standard Fedora on a low-RAM machine like this is doomed to failure.
I poke around on the Internet, and I eventually stumble on the Fedora "spins" and select FC13/LXDE. Hopefully this will have better luck. Reboot with the new CD, take a look at my hard disks. It has completely overwritten the old partitions, replacing them with LVM partitions. But not a big deal: I have a backup. Take a look at the Passport. Its ext2 filesys has also been replaced with an LVM partition. Proceed to beat head against wall. So, obviously what happened is, since I (foolishly) had the backup drive mounted at the time I ran Anaconda, it assumed I wanted it to take over that drive as well, and just formatted everything it could lay hands on as LVM. It certainly never asked me my opinion on the matter.
But, fine, I shouldn't have had it mounted. The question is, what do I do now? My first, panicked instinct, was to just set the partition type back to 83 (I believe LVM is 8E), which I did (using cfdisk). That might have made it worse; I dunno. But I'm pretty sure I haven't written anything else to the disk since then. I've tried testdisk (nothing useful; although it can seemingly find the underlying deleted partition, it won't actually do anything with it), and a bevvy of Windows Linux recovery programs (Stellar Phoenix, DiskInternals, Raise, and R-Linux), all of which were completely useless except for R-Linux, which scanned the disk for eight hours and was still going when I had to interrupt it (I may come back to that one, but so far it doesn't look too promising).
My primary problem is that I can't make an image of the disk because this little Passport is the biggest hard drive in the house. I would certainly feel better if I could image everything off it and then play with the image. But, of course, it doesn't matter that very little of that 319Gb was actually being used: I still need 319Gb worth of space to make an image. I ordered another (larger) Passport, which should be here Wed. Once I have that I believe I can do something like so: Code: dd ifs=/dev/sdX ofs=/mnt/bigpassport/smallpassport.img bs=512 Right? Then I can muck about with that image in some amount of safety.
Of course, I also have the original hard drives, which are not so large. testdisk can identify the original partitions on those too, but, again, won't actually do anything with them. If I could find something that would image just the partitions I care about, I could probably save those as well, but I don't have any other external hard drives with 120Gb of space free. Can I somehow take the info that testdisk is giving me about those original partitions and use dd to get only that part of the image? Are there other recovery tools I haven't considered? I have a Windows (Win7) laptop, a Linux laptop (FC10, I think), although its power cord is flaky so it's not too reliable, a smaller Mac, a really old Windows box (XP on it, I think), and this formerly-Linux box, which I can only boot off CD's at this point. There's nothing on this disk worth the 500 bux that professional data recovery would charge me, but it's worth a day or two of my life to try to get at least some of it back.
A HP Netserver LP2000r, with original SCSI controller and HP NetRaid-2M controller, 3x 36GB Ultra3 HDD in RAID5, Debian (sarge/etch), has crashed after 992 days without reboot. From all that I can see, a hardware failure, most likely with the memory. The HP Diagnostic tools cannot find any problem, but everytime I boot into Knoppix, I get between 2minutes and 2 hours of runtime, and then either a kernel oops or just a complete and sudden halt.
Well, the box has earned its money. However, there is some data on the drives that I need to recover (yes, I have beaten myself up properly about not backing up that data, don't even go there !). There are three partitions: sda1 is /, sda2 is swap and sda3 is a LVM volume with 3 logical volumes on it. As far as I can tell, the hardware defect must have been creeping in and has made a total mess of the inodes in all these partitions.
After booting into Knoppix, I can restore the volumes using pvscan, vgscan, lvscan, vgcfgrestore and vgchange. If I try and mount them: mayhem. So I try and check them, using fsck.ext3. All sorts of interesting nonsense, such as a completely empty inode 11 (the first inode) and then obviously from there on all else is pointless. I tried using debugfs, but the information on what to do with it is somewhat spurious.
P.S.: Tomorrow I will go and get myself a 16GB Flash Drive and then hopefully I will be able to dump the partitions one by one onto that drive and transfer the images onto a different computer for analysis and data recovery.
On my laptop (Dell Studio 1745) w/500GB HD, I have a common data partition shared by openSUSE. Fedora, FreeBSD, and windoze 7 currently. I would like to encrypt this partition (/Common) and have it accessible from all distros either with a passphrase key in /root or on a flash key. I've been researching on the web and there seem to be several possibilities using eCryptfs, Luks, cryptosetup, or any of several methods.
My question is, what have people here used and how well did it work? Also, what was required for setup (I'll probably have to explain/teach it to my wife who is technology challenged-but I still love her anyway) and my daughter who's just getting into linux. I would like to be able to keep the entire directory on the hard drive but also have the ability to copy it to external USB device for transport.
I wanted to migrate from ubuntu karmic to the latest ubuntu 10.10, but i already have a lots of data on my hard disk in home directory. i was thinking if it is possible to transfer all the data to one directory and make a separate partition of it , so tht when i install a fresh copy of ubuntu 10.10 on my system i need not format this new partition ,which contains al my data.is it possible tht this new partition will automatically get mounted on the new system without the need to execute commands from terminal every time i start my system. if there is any other alternative way for solving this problem i would follow tht too.the reason for my migration is that karmic is really troubling me a lot and so many applications including my sound device have failed to work and i am not able to rectify them..