General :: One Of My LVM Partitions Is Not Mounted/does Not Shows Up
May 26, 2011
Created partitions, some of them LVM, in a server, say A. Did the same for another server, B, but created one more LVM partition.
Installed RHEL in A, and some other applications. Made dump files for each partition of A and restored all of them them in B. No error in that process, except B wouldn't boot. Did chroot /mnt/sysimage and grub-install /dev/sda--still no good. B came to a halt with GRUB> dispalyed. <tried many things many times.. searching Googles..but w/o luck) Gave up, and restored the bootloader part using OS CD -- I say restored because now B boots ok and I can see application that I had installed in A. So far so good.
Problem: that extra LVM partition is missing! I did not knowingly overwrite it, so where did it go? Somebody is keeping it from being displayed!
Is it the grub.conf that tells the OS what to mount and what not to? If yes, problem is , grub.conf is missing in B. In A, it is in /boot/grub/. df -kh shows other partions (some of them LVM) just fine.. what is going on?
I tracked a file called menu.lst in a strange place, in /usr/share/doc/grub-0.97.. but I didn't see any entry that loads partitions.
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Dec 20, 2010
I am looking for such a tool, very much like the one that is on Windows 7, where you can basically with one glance see how much of a volume is occupied (graphical bar) and that for all mounted volumes. I have been looking for this, but so far I have not found it.Also, important: that it is auto updated. So that it is not like a report that was generated and then does not change anymore, but a live thing
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Apr 29, 2009
I know I do fdisk -l /dev/sda and see all the partitions on that disk, and I know I can do mount and see all the mounted partitions. Is there a way to do both at the same time? Ideally what I'd like to see is the output of fdisk -l but with an additional column that shows if a partition is mounted or not.
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Nov 17, 2010
I setup my client to mount some nfs mounts at boot but although they seem to be mounted, they are not! Before I give the details, I'll start by saying this is not a wifi problem. I'm using a good old wired connection. The server runs NFS3 with the following line in '/etc/exports':
[Code]...
I have tried the following nfs options in the fstab as you might have noted above: _netdev,auto,bg,retry=10. None of them seem to fix the problem. I realise a quick hack at boot time would fix this in an instant but I'd like to figure out why this is failing.
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May 11, 2011
I'm just wondering because I'm going to to test out just how many partitions I can make and mount on GPT. Is there a theoretical limit on the amount of partitions or mounts allowed? I was thinking there would be depending on if you were running i386 or x86_64 because both can only handle up to a certain interger.
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Jun 1, 2011
i reinstalled opensuse yesterday.when i turn on my system every time i need to enter my root password to mount my partitons.please see the following image.i want to automount all partitions on startup without giving root password(before reinstalling opensuse it didn't ask root password to mount my partitions)
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Sep 27, 2010
How can I hide NTFS partitions so that can't be mounted?I noticed when I'm working on Ubuntu that I can delete files on my Windows NTFS partition, I think that's a risk
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Jan 14, 2011
My Laptop has Ubuntu 9.04 and I am using it for the past one year. I have four partitions. Gparted Screen Shot attached.
/dev/sda5 was mounted as "Laptop 2"
/dev/sda6 was mounted as "Laptop 3"
But from today morning I was not able to access any of the files from my hard disk. When I press the "Computer" Menu Item from the "Places" menu I could access all the files on my hard disk. It shows an error message attached with this thread. The system boots perfectly and work perfectly. "Laptop 2" and "Laptop 3" disappeared.
I searched the net and found ways to mount the Partitions with these following commands.
sudo nano /etc/fstab
# /etc/fstab: static file system information.
# Use 'vol_id --uuid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5) .....
Is there any way I could use "Laptop 2" and "Laptop 3" as my mount points as it was earlier.
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Mar 19, 2011
Does anybody know how to have partitions (not removable media) auto-mounted at boot?It would be great so I do not have to click them for first use.By the way, may it be pre-configured in ubuntu to do that for everyone?
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Jan 20, 2011
I am using direct mounts because I like being able to cd to the directory and use tab completion..versus indirect mounts where you can not do that since the directories are virtual.But, why does the /proc/mounts show these directories mounted(I have not cd to them)? Are they technically mounted? The reason why I use automount is because if I ever have power failures at least not all filesystems that are not being used will be unmounted and not corrupted.
Code:
localhost init.d # cat /proc/mounts
rootfs / rootfs rw 0 0
[code]...
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Apr 18, 2010
I have two partitions in LVM. They are added in /etc/fstab to mount automatically. But, they are not working. The process to mount partitions seems to be happening before the service /etc/init.d/lvm2 is started. I can get it mounted using "mount -a" command, but not during the boot time. What should I do get it automatically mounted on every boot?
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Jan 24, 2010
How do I...
* Prevent the sdb1 + sdb2 ext4 partitions from being shown in Nautilus/Thunar Places sidebar.
* Prevent the Western Digital SmartWare VirtualCD, sdr1, from being shown in Nautilus/Thunar Places sidebar. It is just a VCD that is part of the firmware of the external (sdb) hard drive. *GAG!*
I don't care if they are mounted or not, though I prefer if they aren't. As long as they don't show up on the Places sidebar AT ALL, I'll be happy. I never use them, but keep mounting them by accident.
Here's my fstab, can you tell me why it's not doing the above?
Code:
# /etc/fstab: static file system information.
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
[Code]....
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Jul 25, 2011
the permission remains the same after changing it without any errors
# cat /etc/fstab
Quote:
/dev/sda3 swap swap defaults 0 0
/dev/sda4 / ext4 defaults 1 1
/dev/sda1 /win/C ntfs-3g fmask=111,dmask=000 1 0
[code]....
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Dec 5, 2010
I am using Gnome and Squeeze. I am wondering if I have a problem of understanding, or a problem that I found with Gnome.
My configuration is with a 3 hard disk system.
disk1 (Debian)
disk2 (XP and Fedora)
Disk3 (W7 and a Data partition)
When I boot and log in, all partitions for disk2 and disk3 are mounted read-write. Only by going to command line am I able to unmount the drives with the following sequence
cd /media
umount *
umount *
I should be able to mount and umount a drive by providing or responding to a root password. But I am not given the option to present a password. My request is blocked.
I also do not want to see the drives remounted after a boot. I tried to find out how this was managed, but I was unable to discover the module and it's parameter list that controls or does this task.
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May 2, 2010
I have three sata drives installed in my machine. 1 is my boot drive, contains a windows install, and a linux install. All is well here. Drives 2 and 3 are simple fat32 volumes, I store my data on drive 2, and periodically sync it to drive 3. I do this simply for backup reasons. It was only recently that I setup this scheme. Previously I had all 3 drives in a fakeraid setup. Raid 5. I broke the array to set things up as I've described. All is well in windows, all 3 drives work as expected. However, in linux (fedora 12), drive 2 shows no partitions! If I do an fdisk -l, it shows sdb1, but if I attempt to mount it, I'm told that /dev/sdb1 does not exist, and in fact, /dev/sdb1 does NOT exist. sdc1 however, does exist, and is mountable.
A few things I've noticed with seem relevant.
Gnome reports a raid5 drive, which if I try to interact with it, fails.
Gparted shows sdb as a standard drive.
Dmesg shows the following, I've grepped out sdb and sdc for comparison, as they should be identical.
Code:
[root@azure ~]# dmesg | egrep 'sdb|sdc'
sd 2:0:0:0: [sdb] 1250263728 512-byte logical blocks: (640 GB/596 GiB)
sd 2:0:0:0: [sdb] Write Protect is off
sd 2:0:0:0: [sdb] Mode Sense: 00 3a 00 00
sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA ....
Seems to me that the lines:
Code:
raid5: device sdb operational as raid disk 1
disk 1, o:1, dev:sdb
have something to do with it.
I did play around with mdraid while my array was apart, but I cant seem to find any method of testing sdb to see if something is somehow still configured on that drive. I've re-written the partition table, and even performed a low-level format on the drive, nothing seems to restore its function in linux.
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Jan 4, 2011
Is it possible to forbid a non-root to umount a partition that was mounted via fstab-entry?
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Jan 14, 2016
I'm getting weird behaviour while setting up an mdadm RAID1 array on debian 8.2.
After I set-up the array, lsblk shows:
Code: Select allsimon@debian-server:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
`-sda1 8:1 0 931.5G 0 part
`-md0 9:0 0 931.4G 0 raid1
sdb 8:16 0 931.5G 0 disk
[Code] ....
After a reboot, lsblk shows:
Code: Select allsimon@debian-server:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
`-sda1 8:1 0 931.5G 0 part
`-md0 9:0 0 931.4G 0 raid1
|-md0p1 259:0 0 811.6G 0 md
[Code] ...
I don't know where the md0p1 and md0p2 partitions are coming from. My /etc/fstab and /etc/mdadm/mdadm.conf both have nothing about this in them.
parted shows one partition on md0:
Code: Select allsimon@debian-server:~$ sudo parted /dev/md0 print
Model: Linux Software RAID Array (md)
Disk /dev/md0: 1000GB
Sector size (logical/physical): 512B/4096B
Partition Table: loop
Disk Flags:
Number Start End Size File system Flags
1 0.00B 1000GB 1000GB ntfs
Where the md0p1 and md0p2 partitions are coming from?
I'm setting up the array by doing as follows:
Delete existing device (I've done this a few times):
Code: Select allsudo mdadm --stop /dev/md0
sudo mdadm --remove /dev/md0
Zero drives:
Code: Select allsudo dd if=/dev/zero of=/dev/sda bs=1M count=1024
sudo dd if=/dev/zero of=/dev/sdb bs=1M count=1024
Create partition tables:
Code: Select allsudo parted /dev/sda mklabel gpt
sudo parted /dev/sdb mklabel gpt
Create full-disk partitions:
Code: Select allsudo parted -a optimal /dev/sda mkpart primary '0%' '100%'
sudo parted -a optimal /dev/sdb mkpart primary '0%' '100%'
Set raid flag on partitions:
Code: Select allsudo parted /dev/sda set 1 raid on
sudo parted /dev/sdb set 1 raid on
Create RAID array:
Code: Select allsudo mdadm --create /dev/md0 --level=1 --raid-devices=2 /dev/sd[ab]1
Add filesystem (I'm using NTFS, but the problem also happens with ext4)
Code: Select allsudo mkfs.ntfs -f /dev/md0
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May 26, 2011
When we install a linux OS, we've an option to create partitions. In my laptop I've create partition for /opt, /home, / and /tmp. Are these partitions the same type of partitions as the partitions created by LVM?
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May 2, 2010
My connection manager shows wired connections and shows wireless as being disabled. here is some terminal info getting wireless going?
Here is a bunch of things I have tried and the results.
nixon@nixon-desktop:~$ sudo ifup wlan0
Ignoring unknown interface wlan0=wlan0.
nixon@nixon-desktop:~$ sudo ifdown wlan0
ifdown: interface wlan0 not configured
[Code].....
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Jan 8, 2010
I'm encountering a strange problem. I need to open and forward all UDP and TCP ports related to VoIPtelephony (5000:32000) in the Suse 11.1 server that's acting as router/firewall in our setup. The ports must redirect to a Asterisk server in the local network. (This server has the IP adress 192.168.0.3)I've opened ports in Yast (Firewall>Ports>Advanced) and putted in some masquerading rulesirewall>Masquerading):0/0,192.168.0.3,tcp,5000:31000,5000:310000/0,192.168.0.3,udp,5000:31000,5000:31000when I do a nmap localhost I get:Starting Nmap 4.75 at 2010-01-08 16:52 CETInteresting ports on localhost (127.0.0.1):
Not shown: 991 closed ports
PORT STATE SERVICE
21/tcp open ftp
[code]....
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Mar 22, 2011
I used Ubuntu before, without problems but since the 10.04 version it won't recognize my partitions. I formated my laptop and partitioned it, installed Windows 7 64bit, which I need for my work, and wanted now to install Ubuntu 10.04/10. I then used GParted to check my Harddisk and it is having troubles to recognize my partitions, too while Windows finds them. GParted is giving me an error message saying my partitions are oversized. I am still in the beginning of my Linux experiences and so I don't know what to do. I have two 250GB harddisks (how Windows recognizes them),
[Code]....
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Jan 9, 2010
I have vista and opensuse 11.2 on my computer, the problem is i can't open ext3 partitions from vista but i can the other way. I tried Ext2fsd but the linux partition is always in a read only mood even when i change this option. Also, all folders are empty I downloaded the program as admin and compatable with XP SP2.
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Mar 3, 2010
Xubuntu 9.04 installation CD not detecting any of the current partitions. This all started when I reinstalled windows XP a few days ago.After, the computer wouldn't boot into GRUB and would boot directly into windows.Other threads have dealt with a similar issue, that of overlapping partitions causing libparted/parted/gparted to detect the whole drive as unallocated space. The problem in these threads seemed to be a corrupted partition table, in which the partitions overlapped with each other. So of course I checked the output of fdisk -l for overlapping partitions, but I don't see any obvious overlapping partitions. I've noticed that the partition that used to be linux swap isn't showing up in the partition table at all. I might just be missing something simple here and would like another set of eyes to help me figure this one out. Does the problem have anything to do with the partition table being out of order (ie. not in order of what regions they cover on the drive)? From the liveCD I've run
Code:
sudo fdisk -lu
sudo sfdisk -d
sudo parted /dev/sda print
and have received the following output:
Code:
ubuntu@ubuntu:/mnt$ sudo fdisk -lu
omitting empty partition (5)
Disk /dev/sda: 60.0 GB, 60011642880 bytes
[code]....
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Mar 28, 2010
I've installed Arch Linux onto my Western Digital SATA drive.I love it, best ever, however, I need the fglrx proprietry driver for better 3-d performace, and decided to create a new partition. I decided to install Linux Mint.Sadly, in all my noobishness, I forgot about the 4 primary partition limit (oops!) and as I have /, /home, swap, and /boot partitions (all primary) already installed, I have run into a bit of a problem.I resized my /home partition (almost 500GB) to about 225, and was then told I have over 200GB unusable space. Is it possible for me to change at least 1 of my primary partitions to logical partitions AND keep all the data intact (AND edit the arch configuration so that it'll still work) so I can install a second linux? I sincerely doubt it
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Feb 9, 2011
I am installing Ubuntu on the same hard drive as Windows 7. The partitions of Windows 7 have already occupied the left part of the hard drive. From left to right, the Windows partitions are one partition for Windows booting, one for Windows OS and software installation, and one for data which is planned to mount on Ubuntu. I was wondering how to arrange the order of partitions of root, home and swap, i.e. which is on the left just besides one Windows partition, which is in the middle and which is on the far right?
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Mar 2, 2010
Recently I was trying out a boot disk I had made, and basically, I switched it off several times due to it booting the completely wrong kernel. Now, I'm getting to the stage "Checking File systems" and then comes up [Failed]. I then get a message saying Reboot required, and that it will reboot in 15 seconds, just a few seconds before it reboots I get "/dev/shm not mounted, /dev busy" or something similar.
I've booted up my sysresccd, ran "fsck.ext4 -fcv /dev/sda2" to force a check and scan for any bad blocks, it came up clean, then I rebooted and got the same error, so I copied the kernel and system.map over to /boot to make sure there's no corruption and reinstalled initscripts and util-linux-ng, rebooted, same error.Tried different kernels, I've checked fstab and menu.lst, no problems there, so I still don't get why I still get the same problem.
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Feb 2, 2010
The Fat32 master HDD in my Intrepid Ibex 8.04 Ubuntu PC is mounted and stays so.
I installed a second (slave) ntfs HDD into the Ubuntu PC. Each time I turn it on, the drive needs to be mounted.
What (exact steps) do I need to do so that the slave drive stays mounted after the PC is turned off.
The goal: When the PC is turned on, I'd like the slave HDD already mounted and ready to use.
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Sep 27, 2010
This may be to specific of a scenario, but it is real.- I use an NFS mounted FS as a destination for my backups from multiple clients. - If the FS is mounted with 'noac' which in effect disables write caching, backup performance is horrible 40kb/sec.- If I remove this mount option, backup performance is fine 12mb/sec. However, because of write caching, my cpu io wait time increases (up to 40%) and performancen the entire host suffers unacceptably.My initial impression/solution is to find a way to enabling write caching e.g. do not specify 'noac' and limit OS write cache size
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Jan 13, 2010
I have an NFS server running an older version of AIX that exports two disk partitions. Let's say /1 and /2I also have an NFS client running Fedora 9.I am able to NFS mount /1 and /2 from NFS server under /mnt/1 and /mnt/2 on the client.If I do a df command on the aix server,I see that /1 is 2Gb total and 1.7Gb is usedand /2 is 2Gb total and 1.4Gb is usedI see the same if I do a df command on the NFS client (Linux)Now, the confusing part is here: in the GUI of Fedora, if I go under /mnt and right click on /1 and check folder properties, it tells me that there is ~ 54 000 files (which i assume is the correct number) for a total of 5.3Gb! And for /2, properties indicate 1.2Gb. Where do these extra 3.6 Gb come from on /1...? and even the smaller difference for /2 confuses me (but this might be just the way different systems round off large numbers)?
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Apr 20, 2010
I recently formatted my hard drive and installed Ubuntu and I have the following problem: My laptop has to inbuilt hard drives, one which I use for the operating system and one which I use for storage. Up until 3 days ago, I had Windows XP and Ubuntu 8.04 installed on one of the hard drives, but decided to switch fully to Ubuntu 9 because Windows was giving me far too many issues. So I downloaded the ISO, burned it on CD and then installed. I formatted (as far as I could tell) only one drive but the other one has disappeared from view ever since. I asked a more Linux savvy friend of mine for help and he only got as far as determining that the 2nd HDD is still detected but not mounted. And then he referred me here.
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