Ubuntu :: Messed Up With Permissions For USB And Other Volumes?

Mar 15, 2010

While doing some experiments with my partitions I must have messed up something and I am unable to mount or unmount USB devices graphically, it simply says I have not the permission...Apart from playing with pysdm settings, the only bad thing I did was to change the permissions....(suggestion from another forum)$ sudo chmod -R 777 /Datasudo chown -R fred:fred /Data

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Ubuntu Security :: Unable To Set File Permissions (NTFS Volumes)

Oct 3, 2010

In Nautilus I select a directory on local NTFS volume. I'm logged in as root, right-click > Properties > Permissions and I set "Others" to "none". But it doesn't work. I want my friends & visitors to use and enjoy Ubuntu but without access to my NTFS volumes.

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Ubuntu :: Change Permissions For File / Add These Lines Without Changing Permissions?

Oct 16, 2010

Finally I managed to install my printer/scanner drivers.The last thing I need to do is to add the following two lines to 40-libsane.rules (which is a read only file):# Brother scanners ATTRS{idVendor}=="04f9", ENV{libsane_matched}="yes".How can I change permissions for this file or add these lines without changing permissions?

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Ubuntu :: Permissions For Rsync And BackinTime - Setup 2nd HD With Correct Permissions?

May 31, 2011

Problem: permissions for rsync and BackinTime. Setup: Ubuntu 11.04, Two internal HD, #1=main, single boot, #2=backup drive. Question: How do I set up my 2nd HD with correct permissions? Background: I had previously a dual boot XP+10.04 with a 2nd HD formatted as NTFS. With this I was able to use my rsync and backintime to my 2nd HD with no issue. My new set up is EXT4 on both HD.

(I even tried to reformat my 2nd HD as NTFS, but that didnt fix the issue) I followed [URL] to mount the 2nd HD and get permissions. But now when I run backintime i get this error: [E] Error: rsync: opendir "/home/myhome/.ssh" failed: Permission denied (13) I did my requisite reading for a newbie, and am stuck. I ran backintime as root, and it backed up ok. How do I run my user version of backintime? (i.e. How do I fix the permission issue?)

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Ubuntu :: Reset Apache 2 Permissions To Default Permissions?

Mar 16, 2010

Is it possible to reset apache 2 permissions to default permissions I'm using Ubuntu 9.10 command line server, would webmin give me this access ?

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General :: RW Permissions On External HDD - Chmod: Changing Permissions Of `whatever': Read-only Filesystem

Mar 15, 2010

I have a problem with my external hdd, I mounted it manually and in the mount table it says ive got rw permissions. But when i try to change permissions it says:

chmod: changing permissions of `whatever': read-only filesystem.

This is my mount table:

[root@localhost ExtHDD]# mount
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
none on /proc type proc (rw)
none on /sys type sysfs (rw)

[code]....

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Ubuntu :: Adjust Volumes On A Per-app Basis?

Aug 16, 2010

I know many apps have their own independent volume controls, but not all do. Is there any way to control this in a similar manner as Windows 7?

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Ubuntu :: Creating Really Big Volumes & Backups?

Oct 24, 2010

First Question: I have a very big volume (20+TB). When I try formatting it as ext4, I get the error message:

mke2fs 1.41.12 (17-May-2010) mkfs.ext4: Size of device /dev/sdc1 too big to be expressed in 32 bits using a blocksize of 4096. I understand that ext4 has a limit of 1EB (about a million terabytes), but a 32-bit limitation in e2fsprogs prevents me from creating a partition > 16TB.

Until e2fsprogs is updated to use 48-bit block addressing, it appears my choices are:Break up the volume into smaller volumes < 16TB, or Use xfs or zfs (I have already created a test xfs partition, and it works fine).

Does anyone have any opinions about which option is preferable? I have never used xfs before. Is it as robust as ext4? Is it as well supported by Ubuntu? What about zfs? Is it worth downloading from the ppa?

Second Question: I now have a huge amount of data to back up. In the old days, I remember making a full backup of a "big" 10 MB hard drive by taking a stack of floppies and inserting them one at a time into my floppy drive while my backup program split the backup into 1.4 MB chunks small enough to fit on a floppy.

I now have the same problem, but at a different scale. I need to back up 20+TB onto a stack of external 2TB drives. Is there any software package that can fragment a backup in this way?

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Ubuntu :: Adding LVM Volumes To GRUB2?

May 4, 2011

So after installing Ubuntu 11.04 with Fedora Beta 15, I decided it would be a good idea to get a *buntu based distro in case of anything. So I reinstalled it in the form of Xubuntu, and I see that Grub found my Windows 7 install, but not my Fedora install! Here is the output of fdisk -l:

Code:
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes

[Code].....

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Ubuntu :: How To Auto-mount Volumes/Partitions

Feb 21, 2010

I have 9.10 and notice that when I look in Places none of my volumes/partitions are mounted - if I click on them I have to enter my user password to authenticate to gain access. My problem is that (with some help) I have set up rsync so it runs when I shut down my PC and backs up my Home folder from a partition on sda to a partition on sdb - this is great but sometimes it works and sometimes it doesn't.

I have done some tests and discovered that if I use my PC and never manually mount my backup sdb partition the rsync does not work (I also have GAdmin-rysnc so I can run manually backup but this also will not run if I do no mount the sdb volume). However, if I do mount the sdb backup partition and close down/restart then the backup works. What I need is my sdb backup partition to be automatically mounted every time I switch on - can this be done? I'm sure I had this working in 9.04 (auto mounting) but 9.10 seems not to like it.

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Ubuntu :: Hide Volumes From Gnome-desktop?

May 5, 2010

Before anything I just want to apologize for my awful english (french people just talk/write french, that's a fact ) So, I have troubles with gnome menu volumes. I just want to hide them from the netbook-laucher but anything I've tried worked. I have two Windows / NTFS partitions wich are readeable/writable in ubuntu Lucid Lynx Netbook Remix. One is the C: partition, the other is the boot partition from Windows 7. This computer is for a public place so I can't let them just visible. To hide them I try few things :

Code:
ls -lR /dev/disk
Code:
/dev/disk/by-label:
total 0
lrwxrwxrwx 1 root root 10 2010-05-05 09:59 Acer -> ../../sda3
lrwxrwxrwx 1 root root 10 2010-05-05 09:59 PQSERVICE -> ../../sda1
lrwxrwxrwx 1 root root 10 2010-05-05 10:05 SYSTEMx20RESERVED -> ../../sda2

[Code]...

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Ubuntu :: Disable Boot Xp Mount Volumes?

Mar 13, 2011

ubuntu on boot mount all my NTFS volume , and i'm a bit worried about this , outside my floppy

by the way this is not the point

i would love to know if there is a gui that help me to edit the startup/boot actions

i mean what should perform ubuntu in the boot startup

i'm looking for a gui (i prefer a gui then the console because i don't know how use it ) that help me to manage it

1) i would like to disable -> mount my ntfs volumes

2) in the future i would like to enable it again , i mean mount my ntfs volumes

now i would like to disable

is there a gui (program) that let me to edit the startup?

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Ubuntu Installation :: Trying To Install - Volumes Won't Mount?

Apr 21, 2011

I got a new computer today, a Compaq Presario CQ56, with Windows 7 preinstalled, and I want to dualboot with Ubuntu, but I'm having some problems. I'll explain what I've done so far, in case I did something wrong.

When I popped in my 10.10 Live CD, I was surprised to see there was not "install alongside existing operating system", which I thought I remembered from the last time I installed Ubuntu, but I chose manual partitioning and continued. I'd never done this before, so I quickly learned I had to first create a (couple) partition(s).

After freeing up a large amount of space and rebooting twice as recommended, I booted off the Live CD and opened GParted, intending to create a Ubuntu system partition, one for swap, and one for my home folder. When I right-clicked on my unallocated space, I got the error message "It is not possible to create more than 4 primary partitions". After a little googling, I found I had to eliminate one of my primary partitions and create a new extended partition, which I could then partition further. Noticing I had a partition that didn't seem important, HP_TOOLS, I googled and found this.

When I inserted my flash drive, it didn't automount. When I tried to mount by right-clicking and clicking "Mount", nothing happened. I also cannot mount the HP_TOOLS partition, nor any other. They don't mount when I click on them in the Places menu, and they don't mount when I right-click and choose Mount.

My main question is "Help! How do I install Ubuntu?", but I think if I can create these partitions, which requires mounting the drives (I think), I can figure the rest out.

A screenshot of my GParted window is attached, if that helps. (I couldn't see how to insert it without a URL)

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Ubuntu :: Refuses To Mount Volumes For No Reason?

May 18, 2011

this is all wrong:

# cd /root
# mkdir ./mnt
# mount /dev/sda7 ./mnt
mount: /dev/sda7 is already mounted or mnt is in use

[Code].....

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Server :: Partition An LVM In Two Volumes?

Oct 4, 2010

Is it possible to partition an LVM in two volumes. So that one can be an ext4 filesystem and another can be swap.

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Ubuntu Security :: Aes-xts - Aes-lrw - Aes-cbc - Set Up Encrypted Volumes With Dm_crypt And LUKS?

Jan 3, 2010

I'm just wondering - what is the best way to set up your encrypted volumes with dm_crypt and LUKS?

My understanding was that aes-lrw ws better than aes-cbc - and then I stumble upon [url] which says that LRW has some problems, and XTS is better? I dont know enough about encryption theory to be able to say anything, so i'm hoping some folks more enlightened will be able to say something here.

I was previously using aes-lrw-benbi to set up a volume. If xts is truly better - should i be using '-c aes-xts-benbi' then?

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Ubuntu :: Configure Volumes Shown On Xubuntu 11.04 Desktop?

May 27, 2011

I have installed Xubuntu 11.04 to dual boot with older LTS version. When booting 11.04 it auto shows LTS root & home volumes on desktop. I wish to hide them (home encrypted anyway.)

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Ubuntu :: Unable To Mount Volumes After Applying Updates

Jun 28, 2011

After applying Ubuntu updates i am now unable to mount volumes it tells me that i am denied.I have checked my user permissions and i am allowed to mount. I have also downgraded MountAll to no avail.

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Ubuntu Installation :: Installing On A Dual-boot With Lots Of DOS Volumes?

Feb 9, 2010

I have a DOS/Linux dual-boot system. After recently replacing the original motherboard (an Elitegroup P6VEM3, of all things!) with a salvaged Dell D300 motherboard, I'm preparing to replace the Red Hat 8 currently installed with a Ubuntu live CD that I've had for some time (but that wouldn't work at all on the old motherboard, for some reason) I have a question about the "partitioner" stage of the installer: I don't know what to do with my 5 DOS volumes. My hard drive is partitioned as follows (from the partitioner's report when I select manual mode; annotations in parentheses):

/dev/sda
/dev/sda1 fat16 57MB 33MB (C:, "DOS")
/dev/sda5 fat16 106MB 33MB (D:, "STUFF")
/dev/sda6 fat16 633MB 121MB (E:, "APPLICATION")

[code]....

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Ubuntu Multimedia :: Sound Volumes Are Ear-shattering Loud Across Reboots?

Apr 27, 2010

I recently installed Ubuntu 9.10 on my desktop and I now remember why I didn't ever use it, and that is because the sound volumes are ear-shattering loud across reboots. I have tried doing:Code:sudo alsactl store 0However it doesn't save the settings. I can set the volumes manually using alsa-mixer but that is a pain.I have read the "comprehensive fix to audio problems"sticky but it did not alleviate my problem. And as far as I know, my alsa is up to date.I'm sorry I don't know the relevant output of code needed to show alsa version, etc., so please inform me and I will post accordingly.

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Ubuntu Installation :: Inotify_add_watch Failed \ Volumes Are Mounted And Appear To Be Usable?

Jun 3, 2010

On boot - I get the message udevd inotify_add_watch failed no such file or directory for my LVM physical volumes... volumes are mounted and appear to be usable

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Ubuntu Security :: Disallow Users Mounting NTFS Volumes?

Nov 13, 2010

I have a system, I want only my sudoer account to show and automount NTFS partitions under 'Places' in Ubuntu. Simply, they shall not have access to mount it. Only my main sudoer user account shall take advantage on this show-and-possibly-automount feature of GNOME, but not anyone else.

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Ubuntu Installation :: Installing 10.10 Server 64bit Asking For ISCSI Volumes?

Feb 1, 2011

I'm trying to make a fresh install of Ubuntu 10.10 Server 64bit but is stuck with the Partitioning Disk part and Ubuntu 10.04 LTS provides the same error. The installation wizard gives me a menu:

!! Partitioning disks
This menu allows you to configure iSCSI volumes
iSCSI configuration actions

[code].....

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Debian :: LVM Setup With 3 Logical Volumes?

Nov 25, 2010

I have done a recent install of Debian squeeze on a laptop. I set up LVM with 3 LV's, one for the root filesystem, one for /home, and another for swap. I then used lvextend to increase the size of the LV's. This additional space is shown if I enter lvdisplay (shortened for clarity):

- Logical volume -
LV Name /dev/auriga/swap
LV Size 4.66 GiB
- Logical volume -
LV Name /dev/auriga/root
LV Size 15.97 GiB
- Logical volume -
LV Name /dev/auriga/home
LV Size 169.01 GiB

However, if I use df, it still shows the previous size.
/dev/mapper/auriga-root 14G 8.0G 5.2G 61% /
/dev/sda1 221M 16M 193M 8% /boot
/dev/mapper/auriga-home 147G 421M 139G 1% /home

I have even tried restarting as well. I do not understand why df would still show that /home is 147GB, when I extended it to 169GB using lvextend. Similarly for the root, which was extended by 2GB from 14GB to 16GB.

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Fedora :: Access To Volumes In RAID?

Aug 7, 2011

I was finally upgrading from F12 to F14, and as you'd expect from someone posting for the first time here, I did something stupid. My system has two drives set up as RAID-1 with LVM for the entirety of them. I added a new drive to use as the boot & OS drive, but during the install process I believe I somehow managed to wipe the LVM information from the RAIDed drives (though I did not install to them or format them).

While I have a working F14 install on the new drive, I would like to get access to the data I have on the RAID. However, the LVM tools show the RAID drives as uninitialized. If I try booting off the RAID, it gets partway through the bootup (the white part of the progress bar gets about halfway) before displaying "No root device found. Boot failed, sleeping forever." This occurs regardless of whether I have the new drive plugged in or not. I've been googling for the past several hours and haven't found anything that allows me to access the the volumes on the RAIDed drives.

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General :: Partitions And Volumes In RHEL5?

Jul 16, 2010

What is the difference between a Partition and a Volume in Redhat Linux 5?

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General :: Maping Novell Volumes In EL-4?

Apr 15, 2010

i want to map my novell server volume in my linux EL-4 system.

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Server :: How To Resize Two Ext4 Volumes

Jul 5, 2011

I have been asked to use space allocated to /dev/sdb2 to grow /dev/sdb1 both filesystems contain data. When I run lvdisplay or vgdisplay I get "no volume groups found". and pvdisplay returns nothing. Do I need to add the fs to a group?

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Red Hat :: Logical Volumes Not Detected During Boot

Jan 28, 2010

I have a system where the logical volumes are not being detected on boot and would like some guidance as to how to cure this. The box is a Proliant DL385 G5p with a pair of 146 GB mirrored disks. The mirroring is done in hardware by an HP Smart Array P400 controller. The mirrored disk (/dev/cciss/c0d0) has 4 partitions: boot, root, swap and an LVM physical volume in one volume group with several logical volumes, including /var, /home and /opt.

The OS is a 64-bit RHEL 5.3 basic install with a kernel upgrade to 2.6.18-164.6.1.el5.x86_64 (to cure a problem with bonded NICs) plus quite a few extras for stuff like Oracle, EMC PowerPath and HP's Proliant Support Pack. The basic install is OK and the box can still be rebooted OK after the kernel upgrade. However, after the other stuff goes on it fails to reboot.

The problem is that the boot fails during file system check of the logical volume file systems but the failure is due to these volumes not being found. Specifically the boot goes through the following steps:

Red Hat nash version 5.1.19.6 starting
setting clock
starting udev
loading default keymap (us)
setting hostname
No devices found <--- suspicious?
Setting up Logical Volume Management:

fsck.ext3 checks then fail with messages: No such file or directory while trying to open /dev/<volume group>/<logical volume> There are also messages about not being able to find the superblock but this is clearly due to the device itself not being found. If I boot from a rescue CD all of the logical volumes are present, with correct sizes; dmsetup shows them all to be active and I can access the files within. Fdisk also shows all the partitions to be OK and of the right type. I am therefore very sure that there is nothing wrong with the disk or logical volumes....

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Ubuntu :: Disable Showing Of Mounted Volumes On Desktop And In Nautilus Sidebar?

May 1, 2010

I have a bit unusual request.
There are three partitions on my hard drive. Two of them were assigned to mount points / and /home during system installation. The third one was left intact.
After installation the first two partitions were automatically integrated into directory tree and there was a shortcut on the Nautilus sidebar for the third one. Then, I registered the third partition in /etc/fstab for automounting at /home/user/Data directory. For now it works fine, the volume is mounted on startup. But I still have the shortcut to this volume in Nautilus sidebar and icon on my Desktop.
I am interested, if it is possible to disable showing of this items on Desktop and in Nautilus to make the third partition look like registered at system setup time.

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