Ubuntu :: Unable To Mount 52 GB LVM2 Physical Volume?
Jul 10, 2011
When I installed Ubuntu, I created an 52 gb encrypted partition which shows up in the disk utility, and in the window that opens when I click on the "home folder" icon. I get my normal windows partition, and under that the 52 GB LVM2 partition. But when I try to access it, I get this error.
Unable to mount 52 GB LVM2 Physical Volume - not a mountable file system
This is what fdisk -l shows
Device Boot Start End Blocks Id System
/dev/sda1 * 1 52 409600 27 Unknown
Partition 1 does not end on cylinder boundary.
/dev/sda2 52 30452 244193280 7 HPFS/NTFS
[Code]....
How can I fix this, and be able to access that 52gb partition? This is only my second day that I work with Ubuntu, so If more information is needed then let me know
I just installed linux fedora 14 on my hp probook 4320s with installation CD with this name: Fedora-14-x86_64-Live-Desktop. Then I installed it on the hard disk. During installation I chose to encrypt hard disk. When I try to access my hard disk it says "unable to mount 250GB LVM2 Physical Volume, Not a mountable file system". What can I do to get access to my hard disk?
I have a 500GB hard disk, /dev/sda. On it, there is /dev/sda1 for /boot, /dev/sda2 for an LVM PV (physical volume), and /dev/sda3 for another /boot (multiple Linux distros, one boot partition for grub legacy, another for grub2). so the LVM2 partition, /dev/sda2, is taking up ~465GiB. I want to add another OS (non-Linux), so I resized the *lvm2 physical volume* to 320GiB, successfully, using pvresize.
However, I now need to resize the partition so the lvm2 physical volume only just fits on it, ie to 320GiB. My plan of action is to use gparted (the partition table is GUID, so fdisk won't work), to first delete the partition from the partition table, then re-add it but this time with a smaller value (~320GiB). The problem is that I need to know exactly how many MiB/cylinders the physical volume is taking up. So, I run:
Code:
root@sysresccd /root % pvdisplay --- Physical volume --- PV Name /dev/sda2 VG Name vg0
[code]....
What one of these values do I need to set the new lvm2 replacement partition to?
I have no idea what I'm doing so here goes: I installed Fedora and clicked the "encrypted" box during the process. What I want to do now is "browse" the volume using "File Browser" but I only get messages like, "Unable to mount location, org.freedesktop.DeviceKit.Disks.Error.Failed: Not a mountable file system". Why cannot I not see the files? I have the password. I would like to be able to move, delete, rename, etc files but that seems impossible because I cannot access the drive.
I have a problem in my ubuntu 10.01 that it can't load a drive/volume in ubuntu. When I tried, it said: "Unable to mount location Error mounting: mount: /dev/sda1: can't read superblock". And when I boot my pc with 'Windows', it said : "UNMOUNTABLE_BOOT_VOLUME" under a blue screen. What can I do to solve this problem?
I am trying to burn some data to CD/DVD, but when i insert a CD/DVD into the drive i get the 2 error messages shown in the screenshot below. The burn medium is not even recognised anymore by the PC.
This problem is new to me,it has suddenly appeared 3 days ago,and i have researched the forum already.
I have tried 5 other CD/DVD in the drive,but the problem is the same(some are brand new).
Iḿ using Brasero/K3b programm to burn with,but alas no joy.
My Windows-system has broken down and I can't reach my files on the hard drive, because i'm unable to boot Windows.
I am running Linux from the cd, but when I try to open the hard drive, it gives me an error: 'Unable to mount the volume 'C:OS''
Details: '$LogFile indicates unclean shutdown (0,0). Failed to mount '/dev/sda1': Operation not supported Mount is denied because NTFS is marked to be in use.
Choose one action:
Choice 1: If you have Windows then disconnect the external devices by clicking on the 'Safely Remove Hardware' icon in the Windows taskbar then shutdown Windows cleanly.
Choice 2: If you don't have Windows then you can use the 'force' option for your own responsibility.
For example type on the command line: mount -t ntfs-3g /dev/sda1 /media/OS -oforce Or add the option to the relevant row in the /etc/fstab file: /dev/sda1/media/OS ntfs-3g defaults,force 0 0
$MFTMirr does not match $MFT (record 0). Failed to mount '/dev/sdb1': Input/output error NTFS is either inconsistent, or there is a hardware fault, or it's a SoftRAID/FakeRAID then first activate it and mount a different device under the /dev/mapper/ directory, (e.g. /dev/mapper/nvidia_eahaabcc1). see the 'dmraid' documentation for more details.
I'm trying to reinstall ubuntu because I messed up a bunch of stuff but I need to back it up on this hard drive which won't mount in any linux distro.
I didn't have Linux until the day Windows crashed on me for the gazillionth time. I was simply playing some music in Windows Media Player as the entire PC froze. No CTRL+ALT+DEL, no alt F4... so I was forced to hard-reset my computer using the ON-button. After that it never launched Windows again simply because it didn't feel like it. Now, we're not here to find out why Windows is a bitch about all this, my real problem lays somewhere else. Seeing as a lot of important files were on my Windows drive I figured I could just install Linux on the other drive and fetch the files from there. The problem is I can't. Every time I attempt to open the disk I get the following error:
Quote:
Cannot mount volume. Unable to mount the volume.
Hibernated non-system partition, refused to mount. Failed to mount '/dev/sda2': Operation not permitted. The NTFS partition is hibernated. resume and shutdown Windows properly, or mount the volume 'read-only' with the ro-option. Or mount the volume 'read-write' with the remove_hiberfile-option.
Code:
mount -t ntfs-3g /dev/sda2 /media/disk -o remove_hiberfile
I've tried both the ro-option and the remove_hiberfile but in both cases I'm given this error in the console:
Quote:
Mount is denied because NTFS is marked to be in use.
Choice 1: If you have Windows.. click on the 'Safely Remove Hardware' icon in Windows task bar to shutdown Windows cleanly..
Choice 2: If you do not have Windows then you can use the 'force' option...
And thus looping me back to the first command, upon entering I will again receive the first error. Things I have tried:
- said commands or slight variants
- re-installing windows (gets stuck during installation)
- used the Ultimate Boot CD in an attempt to access and copy the files from my Windows Drive onto an external hard drive / my Linux drive
- clicking the Drive icon furiously for a period of time in hope of a different result (which obviously did not work) Seeing as I can't screw open my laptop and take the drive out I'm really hoping there is some way for me to connect to the drive from Linux and extract the files.
- most likely my Windows system files have gone corrupt and I will need a format, but I'm not willing to do that unless I'm a 100% sure there is no way for me to extract the files first. I have an Acer ASPIRE 7720G (laptop) running an Intel Core Duo T7500 and have 2 physical hard drives (each as one large partition) of 500GB, further more it has 4GB DDR2 RAM memory and a fancy graphics card.
so i have f12 installed on my hd with lvm using the whole extent of the HD , i want to reduce it so i can dual boot it with a windows system, i managed to reduce the logical volume to free some space, but i cant seem to reduce the physical volume, is this possible and how ?
I am not well versed in using Ubuntu. I was using Win XP Pro SP3 on my old machine. I decided to make the move to Ubuntu. No problem since all files on the primary drive of the old machine were just OS related. I kept all of the important stuff (music, documents, reg codes, etc.) The computer had no problem importing the songs on the external drive to the music library. I am playing songs and loving it. Now the problem... when I am starting with ubuntu I don't find the drive and I can't mount it.
I get a box stating: You are not privileged to mount this volume DBus error org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
The problem I'm having didn't seem to be covered in other posts. Despite following what is supposed to be a straigtforward method, I am still unable to mount /dev/sda1.
Using Ubuntu 10.04 LTS LiveCD - Lucid Lynx
sudo /bin/bash fdisk -lDisk /dev/sda: 250.1 GB Disk identifier: 0xa08ea08e Device Boot Start End Blocks Id System
[Code].....
I find it strange that fdisk sees the drive but mount doesn't.
Error mounting: mount exited with exit code 1: helper failed with:
mount: wrong fs type, bad option, bad superblock on /dev/sdb1, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so
We had to reboot a server in the middle of a production day due to 99% iowait (lots of processes in deep sleep waiting for disk iops). That's never happened to us before. It had been 363 days since the last fsck, so it started automatically on reboot. It hung at 4.8% on a 2TB LVM2 volume for about an hour. I killed the fsck and rebooted the server. The second time, it went past that point and is currently at about 62%. First, what causes e2fsck to hang like that? Second, is there any danger in killing e2fsck, rebooting, and starting it again?
I used parted to create a partition inside the logical volume, and then merrily used that partition, which appeared as /dev/pv-whatever/lv-whateverp1
Of course I created the FS as ext3.
So, after a reboot, I can't access anything in that logical volume with standard tools, as /dev/pv-whatever now only has the lv-whatever special file inside.
I can look inside the LV with parted fine, but parted can't copy ext3 filesystems.
Is there any way to get the data out of a partition created INSIDE a logical volume if that filesystem is ext3?
I believe server section is the best when speaking of RAID stuff...
I have the following situation:We have a DELL T3400 with embedded fake raid on it. I dont know exactly how the system was setup (I wasnt here at that time), but the RAID was enabled in bios and while booting, the two harddrives would be seen as members of intel raid volume0 (RAID 1 mirror). I am not sure if the software raid was actually properly configured in Linux (Fedora 9) and if the OS was reconstructing the whole raid or it was just the bios part that was mirroring the /boot or just some parts of it. Frankly I find these hydrid raids very confusing.Some bad disk manipulation from my part caused the server to crash, but I was able to recover and boot just with one hard drive after using fsck.
I decided to get rid of the raid as it's not the right solution for the application we need it for and decided to go for a traditional single harddrive system and to use Ghost for Linux to clone to a spare disk when backups are needed.So I installed the latest Fedora 12 distribution onto another harddrive and disabled RAID in bios (changed from RAID ON to autodetect, which is the only other option).
Here is what I have now: /dev/sda has the newly installed fedora 12 /dev/sdb is an empty harddrive that I would use as an intermediate /dev/sdc is the old harddrive member of intel raid volume0
sdb was partitioned into sdb1 sdb2 and sdb3 and I created an ext3 filesystem on sdb2. The hard drive belonging to RAID volume0 (sdc) has a lot of work done on it and I would like to be able to recuperate the files to the new disk (sda). I cannot mount that old harddrive while in fedora 12, as it sees some unknown raid member filesystem on it probably assigned by the intel raid chip.
So I decided to do it from the other side: to boot from raid volume 0, and from there mount a third intermediate harddrive (sdb) onto which I would copy the documents and then mount the same harddrive from the newly installed fedora 12 and copy those documents from that intermediate harddrive.I can mount /dev/sdb2 from fedora 12 fine and copy stuff to and from it, but not when I boot from the RAID volume 0 harddrive (sdc) with fedora 9 on it. It keeps saying that the partition in question (/dev/sdb2) is an invalid block device.I am stuck here, as my knowledge in this sort of things is very limited.If somebody can indicate me how to recuperate files from that old raid harddrive onto the new fedora 12 drive, I would appreciate a lot.
I have ubuntu installed on 2 hdd. one of my hdd is having a lvm. I am unable to acess the home partition created in this lvm from my other hdd. in fact it is not shown at all inside the explorer window, the whole lvm block itself. if u run disk utility that also does not show the lvm partitions as mounted. So what are the steps required to be done to access those LVM partition from the other disk.
I was running through a fairly routine Gentoo install on a 160G hard disk. My intention was to have two partitions on the disks: one for boot, and one to be an LVM physical volume. In a stroke of absent-mindedness, however, I forgot to create the boot partition and only created the LVM physical volumend didn't realize ituntil the end of the installation.Anyway, I just want to shrink the physical volume partition and add in another partition with fdisk. However, this doesn't seem to be working the way I intend. I ran
Code: livecd dev # pvresize --setphysicalvolumesize 159G /dev/hda1 WARNING: /dev/hda1: Overriding real size. You could lose data.
So I got a bad physical volume inisde my logical volume. I want to do this safely rather than tinkering around, how can I get the bad physical disk out and look at the data on the other 2 drives to see if I can save anything? Its just the standard fedora setup where it combines all the disks, nothing fancy.
I have the volume group activated as a partial, and now I just want to see the data on the other sections how could I mount that?
Let's assume I have a volume group (VG) with six physical volumens (PV) - sdb1, sdb2, sdb3, sdc1, sdc2, sdc3..I want to remove one of the PVs from the group in order to use its space elsewhere - how can I know if it's safe? How can I do that without losing data and without first "pvmove"ing it elsewhere?Reading a bit more, my guess is using the result of pvscan, but I thought I'd ask before removing keeping it safe as I'm not an LVM expert.
WHat is the physical volume in LVM's? Why do we need to create a physical volume first before creating LVM's? I mean, LVM's are created from physical disks, so why do we need to specify it? Didnt get it. Anybody want to help me with this?
How do I find the OID code for a physical volume.I managed to get it to work with our snmp monitoring software to alert me when disk space was < 10% but the computer which was running the SNMP monitoring died.For the life of me I can't remeber how I got it to work.I have 4 partitions 1 has 88% free /etc/mapper/volgroup002 has 21% free /boot3 nfsd 0 bytes4 sunrpc 0 bytesHere is a copy of the OID I'm using 1.3.6.1.2.1.25.2.3.1.5.1 I change the last number to resemble the drive but i'm testing using 8% and they each return an error drive space low which is what the VB script tells it to do. I know the script works as I use it on Windows Servers no problems.I do an SNMPWALK on the server and it validates the above OID with HOST-RESOURCES-MIB::hrStorageSize so I know thats valid.But thats where I'm stuck. What value should I see if I were to use this OID 1.3.6.1.2.1.25.2.3.1.6.1 which is for free disk space.
I have kind of test partition, but I need lv_root on it. So I have:
Code: Using physical volume(s) on command line PV VG Fmt Attr PSize PFree Start SSize LV Start Type PE Ranges /dev/sda6 VolGroup lvm2 a- 29.73g 440.00m 0 6859 lv_root 0 linear /dev/sda6:0-6858 /dev/sda6 VolGroup lvm2 a- 29.73g 440.00m 6859 128 lv_swap 0 linear /dev/sda6:6859-6986 /dev/sda6 VolGroup lvm2 a- 29.73g 440.00m 6987 512 lv_root 6859 linear /dev/sda6:6987-7498 /dev/sda6 VolGroup lvm2 a- 29.73g 440.00m 7499 2 lv_swap 128 linear /dev/sda6:7499-7500 /dev/sda6 VolGroup lvm2 a- 29.73g 440.00m 7501 110 0 free I want to move "lv_swap" to the end of VG. I want to delete its segment, and rest of VG to use for "lv_root".
I have a 7.9 TB logical volume I've created from 8 1 TB RAID 0 devices. The volume is formatted with XFS so I can resize when ready. However, I think I want to do something that is not possible. I have 2.5 TB free on my logical volume. I'd like to shrink the volume down to be 6 TB by getting rid of 2 of the 1 TB devices in the physical volume. However pvmove seems to require free extents in order to work. Do I need to add 6 TB of storage, pvmove everything onto it, and then decommission the original 8 1 TB physical devices from the volume?
I was trying to remove the physical volume from an old drive. So I opened gparted and told it to rewrite the partition table. The only problem is I targeted the wrong volume, I wiped the partition table on my 4tb raid5 array This 4tb array has everything! All my movies, tv shows, music. The only things I have backup up off site are my smaller files like documents. I was about to lose my whole media collection.
I did some research and found a solution that I will post here in the hopes that someone will google "I deleted the partition table on my lvm" and be find the solution.You should find in your filesystem a /etc/lvm/backup folder. LVM puts a copy of the crucial lvm information there every time you change the the volume group.
In this folder you will find a file for each volume group. In this file you will find the uuid for all of the physical volumes that make up that group.The first step is to recreate each physical volume with their original uuids. In my case I had only 1 physical volume, which was my raid5 array. My recreation command looked like this:
Now I have a physical volume with the same uuid it had before. It is essential that you correctly match up the uuids with the correct physical deviecs.The recreated pv is empty, the volume group needs to be recovered. This is done by using a special tool and the backup file. For me the command looked like this:
vgcfgrestore --file /etc/lvm/backup/raid5 raid5
This tells it to recreate the volume group using the information in the backup file. The backup files looks for the uuid of the PV, which now matches the correct volume. The coordinates in the backup file match up to the data on the array an suddenly everything is back!
When I deleted my LVM partition table I did not damage any of the actual volumes on the volume group, I just wiped out the table of contents. The backup file had the information needed to rewrite this table of contents.
How to create multiple Logical Groups out of a single Physical Volume? Here is the Physical Volume I have created:
Code: # pvdisplay --- Physical volume --- PV Name /dev/sda9 VG Name myVG1 PV Size 54.88 MB / not usable 2.88 MB Allocatable yes PE Size (KByte) 4096 Total PE 13 Free PE 11 Allocated PE 2 PV UUID bon4Ao-vmgC-aP1h-EC9X-w3tN-YXNu-0N2dAw
This is how I am creating a Logical Group out of the above Physical Volume:
Code: # vgcreate myVG1 -s 4m /dev/sda9 Display:
Code: # vgdisplay --- Volume group --- VG Name myVG1 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 5 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 1 Max PV 0 Cur PV 1 Act PV 1 VG Size 52.00 MB PE Size 4.00 MB Total PE 13 Alloc PE / Size 2 / 8.00 MB Free PE / Size 11 / 44.00 MB VG UUID O6ljYC-bflz-EUTd-nf34-8gYe-Fh39-Bh3cOg
But I am unable to create one more Logical Group out of this Physical Volume. Can we accomplish it? Or do we always extend our current Logical Group to utilize the available space of a Physical Volume?
