Hardware :: Cannot Access LVM Partition
Mar 4, 2011
I just made some partition changes to my laptop (wiped ntfs partition clean) and afterward my / file system will not mount. My partition layout is still the same but somehow my Logical Volume doesn't realize it's a logical volume anymore. What's stranger, though, is that my /boot partition in the same LVG is unaffected and I can boot just fine. I just get a failure when it comes time to mount the / partition.
Of course I recently deleted my / backup and all I have is a /home backup now. This means I don't know how the heck I'm supposed to find the partition metadata or UUID. I would gladly pay for software to get this fixed now because I need the information on that drive. I have to use this laptop for my Java and C++ classes and I'm already 2 days late on a C++ project.
Code:
[root@localhost ~]# dd if=/dev/sda6 of=/tmp/LVM2.dd bs=512 count=48 | strings
48+0 records in
48+0 records out
24576 bytes (25 kB) copied, 0.314681 s, 78.1 kB/s
[Code]....
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Feb 19, 2010
I installed XandROS on my vista machine. I can access the Windows partition from Linux but in Vista I cant see the Linux partition...is there anything I can do about that?
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May 21, 2011
I've recently just installed ubuntu 11.04 but seem to have made a big mistake. During the install process I was asked to specify a location to be used for swap. Not really understanding what this meant I chose another partition on my drive with some free space but also a lot of my data. Needless to say I now cant see that partition. Is there anyway for me to access it? or to at least recover the information I need from there? its about a 200gig partition, and it used to be ntfs.
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Sep 24, 2010
After several times install & reinstall,i got a stable dual boot vista / ubuntu 10.10.,but i can't access or even see my windows partition from ubuntu,i installed my dual boot with wubu this time,in previous installation when i didn't use wubi , i didn't have such a problem & windows partition with all my files in it (windows files,media ,etc,) was easily accessible from "places" on ubuntu . I already disabled windows firewall & other security options but nothing changed
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Aug 6, 2011
I have ALL of my holiday pictures saved there and that is the ONLY place where they are. The Ubuntu partition is corrupt and unaccesible. I NEED to get these pictures back.
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Feb 9, 2011
I have several disks in one large raid5 array, which is /dev/md127.This one raid device is using lvm2, and is a physical volume in a volume group called lvm-raid.I then have many logical volumes within this volume group for various things, including virtualization.I have a VM (using kvm for full virtualization, set up using the graphical virt-manager) which uses one of these logical volumes as its disk. From the host, this logical volume is /dev/mapper/lvm--raid-lv_webserver, with a major number of 253 and a minor number of 6.
ical volume.
I am thinking I need to use mknod to create /dev/mapper/lvm--raid-lv_webserver1, but I cannot figure out the appropriate major and minor numbers to use. When I test is with a mount command, it always tells me "mount: /dev/mapper/lvm--raid-lv_webserver1 is not a valid block device". how do I access partitions within a logical volume?
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May 14, 2011
I'm hoping to do something similar to the way you can install Windows on a Mac's 'Boot Camp' partition, but then you can also open that partition as a Virtual Machine using Parallels or VMware from within OS X.That way for the quick stuff, you just fire up the VM, but for the more 'intense' things, you can boot into Windows natively.The difference here being I want to use Ubuntu instead of Windows. (Don't care if I use Apple's 'boot camp' mechanism or a third-party boot manager either.)
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Jan 29, 2010
The first time I access to the WXP partition from Ubuntu an authentication is required. Is it possible to make Ubuntu access the partition automatically when I start my session?
Of course I have administrator profile.
Automatically log in Windows partition at startup or something like that.
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Jun 7, 2010
Is there any point of installing Samba when dual booting between ubuntu and Windows XP? I'm able to access my XP partition from Ubuntu with no problems and share files with no problem. Unfortunately it doesn't work the other way. When I'm in my XP partition I'm not able to access my Ubuntu partition. Is there another problem I have or something else I need to do?
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Oct 18, 2010
I have a desktop, a cellphone. I do NOT HAVE a disk drive, a USB stick or anything of the sort.
The desktop has two operating systems on a single hard drive: Ubuntu 10.04 and Windows 7. I need to get internet access in Windows 7.
The cellphone is a Galaxy S Vibrant, and is tethered so that I can connect to the internet through it. In Ubuntu, the tether is automatically supported. I just shove a USB cable between the cellphone and the phone and I've got internet in Linux. But in Windows, the tether needs drivers. I can't connect to my phone in Windows without them.
So, I pretty much have to put the installer in Windows from Linux, so I can run it, have internet in Windows and not get fired tomorrow.
I have $0, so picking up (or borrowing) something I can use to talk between the two computers is not an option.
But in Ubuntu, I do not see my Windows partition. It's not in media and it's not in mnt.
What can I do to get a damn file over to Windows?
Note in bold and italic to show that it's important: NTFS-Config only shows my Ubuntu drive, it seems.
EDIT: Oh boy, I screwed up.
[URL]
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Dec 24, 2010
I can mount the windows partition within ubuntu from Nautilus with Read/Write access,but not able to do so for Fedora partition. Fedora partition is getting mounted from Nautilus,but when i try to access the home folder of any Fedora user,it gives the permission denied error.
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Dec 28, 2010
Two days ago I want to expand the free room for my C: partition on my laptop, i thought that just shrink the D: partition and expand the C: and the problem solved, but it's not solved, the C: remains and can't be expanded. so i merge the D: again,but the D: status become an extended partition
After all, next morning I boot into Ubuntu and my D: are not available in "Places" menu in Ubuntu just the C: partition, so I boot from Win7 and run CHKDSK /f to my D: partition, but it's gave me no effects
Code:
sudo fdisk -l
in terminal and my D: listed as "Extended" in System type.
In my Win7, everything is alright
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Aug 2, 2011
I have a partition on my hard drive sda3, that I use to make backup of files, I have to loggin as root evverytime I want to copy a file on that partition. What can I do to make that media accesible?
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Mar 12, 2010
I have linux9 & windows xp dual boot.I want to access ntfs partition in linux9 please give me suggestion for same.
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Feb 10, 2010
I use both Windows and Fedora(using dual boot).So is it possible to access my windows ntfs partions in Fedora ?
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Jan 1, 2010
I have dual-boot XP/Karmic.I have an external HDD for backup. One partition is NTFS for the XP stuff. The second partition is ext4.I was practicing with the SystemRestoreCD, which provides a Linux root console.I can create and delete directories on the ext4 partition, but not on the NTFS partition. The error message says "read-only file system".I tried to use chmod and chown to change permissions and owner.I assumed that as root, I could do anything.How can I access the NTFS partition, and do anything that I need to do?All my current XP stuff on the HDD was backed up from within XP, using standard software (Cobian Backup), and normal user privileges. But I want to practice for when my XP OS is damaged.
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Jan 7, 2010
I formatted my hard disk but when I try to copy anything on one of the partitions, there is a notice that access has been denied, so what do I do.
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Jan 27, 2010
how to access fat and ntfs partition in redhat linux 5
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Sep 12, 2010
it all started with my eagerness to have a triple boot system with XP/Win7/Ubuntu 10.04. I had xp on a PC with an Asus M/B with a single 320GB SATA HDD.Then I installed Win 7 (probably into a logical drive). It went well.Then after searching for some help I installed Ubuntu 10.04 on to another partition. Fine up to here, but when I saw I was able to access other partition files from Linux but not the other way.Then thru some help from some forums I tried to free some space from the Linux Partition and make it as a shared drive between Win and Linux.
In this process I used GParted live CD to rearrange partitions and tried to format the unallocated space it is showing "you cannot create a new volume in this unallocated space because the disk is already containing the maximum number of partitions."
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May 21, 2010
I recently formated my harddrive and instead of theld fat32 partition for windows partition I used ntfs. I am mounting this partition in /media/windows in debian linux. But it shows a cross (x) symbol above the folder and says I don't have the permission to access it. the permission on the folder is (drwx_ _ _ _ _ _ ) and it is owned by root. So I changed it to my user name -- sid by doing the followingsudo chown -R sid:sid /media/windowsHere are my questions1) Now it allows me to access the folders but all the files like pdf or photos have a cross on right top corner and it says access denied. Is this because of ntfs since with fat32 I didn't have this problem.
2) Also I have a /data (ext4) partiton which is a common partition for datafiles between Ubuntu and Debian. It has the permission -- drwxr_xr_x . I am trying to write to this partition and save files but it doesnot allow me to do it. do I have to make chmod 777 to do that?3) How do I make sure that both windows and /data partition are writable right from the beginning at the boot time.
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Jan 20, 2011
I have recently installed Debian 6.0 Testing with KDE4.4.5. I have two fixed ext3 partitions on the hard drive but when I click on the second partition in Dolphin the following error message appears: "org.freedesktop.hal.device.volume.permission denied, refusing to mount /dev/hda5 for uid=1000". I have searched the kde forum and other sites and have found reference to it on other distributions. It appears to be a hal configuration problem. KMint kde 4.4 seems to have resolved the problem as my other partition is running the same kde version and I can access the debian partitions. Perhaps I should just manually mount the partitions when needed!
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Feb 28, 2010
I would like to try to install the nvidia drivers on my F12 box.fter two failed attempts, one of which required me to completely wipe F12 and reinstall (i.e. right royal pain), I would like to be more careful for the next attempt.The problem is that if I try to upgrade to nvidia drivers, and they don't work, I need a way of backing the installation. But, if the driver upgrade fails, then the OS won't boot. I tried going in with a Knoppix live DVD, but it could only access Fedora's /boot partition, not the main OS mounted on /. Therefore, I couldn't change undo the selection of the nvidia driver and back out.The output of mount is:
Code:
# mount
/dev/mapper/vg_machine-lv_root on / type ext4 (rw)
[code]...
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May 18, 2010
i am new to open suse i just installed it now on one of the partition on ma hard disk but not able to access other partitions.
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Jul 29, 2011
I just installed it. On the dual boot screen my windows7 partitions show up but nowhere on openSUSEI haven't checked if my windows7 partition boots though,
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Oct 3, 2010
I installed Ubuntu 10.10 to dual-boot with XP Home on my Asus 1005HA netbook. The main hard drive is an OCZ Vertex 2 SSD. I've tried all the common tools for accessing the Ubuntu partition from inside XP, but none of them appears to work. Ext2IFS didn't let me assign drive letters - in fact, it doesn't seem to detect the Ubuntu partition at all. The Ext2IFS config tool in Control Panel looks like this (the SSD is 120 GB, and the Linux partition is 10GB as I recall):
explore2fs doesn't even start. Linux Reader can't open any drive, including flash drives and external HDDs.
I can't think of anything irregular about my system except the SSD. Could that be it?
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Aug 29, 2011
How can I access a Linux partition from Windows? How to read EXT2 from Windows 7 64-bit? Does a ext4 reader for Windows exist?
I am currently in Windows and was wondering if there is any way I could mount my Linux partition, so I can access and transfer files? The file system is ext4
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Jan 4, 2010
I had my hard disk partitioned as below:-
Size Label Mount point File system
52 GB Multimedia /MM ntfs
52 GB Backup /ABackup ntfs
52 GB Extras /Extras ext4
27 GB root / ext4
60 GB home /home ext4
The problem is that I cannot access the /MM and contents. I tried Properties > Permissions and changed applied the changes to subfolders and contents too. Now I can access /MM but not the contents. All are marked with a lock logo.There are numerous folders/files.Changing the permissions individually is a hectic work.possible to do it in a command line/script?
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Jan 18, 2010
I have installed an Ubuntu server and it running OK. Before making it a production server, I want to make sure one day if the OS corrupts accidentally, I can still access the users' files on the hard disk.
I burned a Ubuntu desktop live CD, and booted it with this machine. There are 2 hard disks on the server, both could be mounted automatically. However, I can only access some folders like lost+found.
The questions are:
1. how can I access the other folders, given I have the root password of the server.
2. is there a way to access all folders without knowing the users + passwords?
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Apr 30, 2010
I have a partition on my hard drive that i use for documents. In 9.10 i would just click on places, and then on the partition name. It would ask for my password and i would be able to access the files. I just upgraded to 10.04 and first off i do not see the partition at all. I navigated to filesystem>media and found my partition but i has a gray X on it. I did gksu nautilus and when i access the folder, there is nothing inside.
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May 4, 2010
I have installed 10.04 on my MacBook Pro 6,2, and am trying to access some files stored in my User directory on the OS X partition of the laptop. I get a permission-denied error, but I figured this was a similar issue to the one mentioned in the stickied "How to Install Ubuntu 9.04 on Intel-Based Macs" thread.However, the suggest fix,Code:sudo usermod -u 501 -g 20 richarddoesn't exactly work for me. I tried this, but found myself suddenly logged out of my main account. On the log-in screen, only my second account showed up. Luckily, I was able to log into that, and re-usermod my main account back to it's original userid number.I am guessing that my strange error had to do with the abnormal (for ubuntu, at least) userid?
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