Ubuntu – mounting problem

fstabmountstartup

Hey I got this problem on my fresh xubuntu 13.10 install

I have a Data device /dev/sda5 which I like to auto-mount it on startup, I added it to the /etc/fstab file

UUID=261ff894-502a-4b5b-8bc7-b53a8ab8e325 /home/linuxer/DATA/   ext4    rw      0       0

The problem is that when the I login and access the folder it's empty!
Although when I echo the command

mount

it says that /dev/sda5 is mounted at /home/linuxer/DATA/ !

So I have to unmount it, and it displays:

umount: /home/linuxer/DATA: not mounted

but on remount, it displays well!

I've got another line in my /etc/fstab

UUID=208A8DE78A8DBA34   /media/win7onsada3      ntfs    rw      0       0

and this one works just fine.. It auto-mounts on startup

I have my system set -up with LVM support activated.
Any help would be appreciated!

output of blkid

/dev/sda1: LABEL="Recovery" UUID="CC0E4D840E4D6892" TYPE="ntfs" 
/dev/sda2: LABEL="System Reserved" UUID="F43C763F3C75FD44" TYPE="ntfs" 
/dev/sda3: UUID="208A8DE78A8DBA34" TYPE="ntfs" 
/dev/sda5: LABEL="Data" UUID="261ff894-502a-4b5b-8bc7-b53a8ab8e325" TYPE="ext4" 
/dev/sda6: UUID="42de199a-60ae-48f4-93e0-1d9cb79b93a1" TYPE="ext2" 
/dev/sda7: UUID="gfZ1YH-J0nl-b3l2-uXsA-7Gib-HXWf-6LLX2w" TYPE="LVM2_member" 
/dev/mapper/Distros-ROOTDIR: UUID="ddce62f6-1acb-4878-a079-cc50bb7bc18d" TYPE="ext4" 
/dev/mapper/Distros-HOME: UUID="96bda727-1db2-4513-be08-a79e09fe350e" TYPE="ext4" 
/dev/mapper/cryptswap1: UUID="f6f1556b-d3d2-480e-b3a1-07a79335fa4e" TYPE="swap"

output of cat /etc/fstab

# /etc/fstab: static file system information.
#
# Use 'blkid' 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).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/mapper/Distros-ROOTDIR /               ext4    errors=remount-ro 0       1
# /boot was on /dev/sda6 during installation
UUID=42de199a-60ae-48f4-93e0-1d9cb79b93a1 /boot           ext2    defaults        0       2
/dev/mapper/Distros-HOME /home           ext4    defaults        0       2
/dev/mapper/Distros-SWAP none            swap    sw              0       0
/dev/mapper/cryptswap1 none swap sw 0 0

#/home/linuxer/Data
UUID=261ff894-502a-4b5b-8bc7-b53a8ab8e325 /home/linuxer/Data/   ext4    defaults,user   0   2
# windows
UUID=208A8DE78A8DBA34   /media/win7onsada3  ntfs    rw  0   0

output of lsblk

NAME                       MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda                          8:0    0 698.7G  0 disk  
├─sda1                       8:1    0  14.1G  0 part  
├─sda2                       8:2    0   100M  0 part  
├─sda3                       8:3    0   200G  0 part  /media/win7onsada3
├─sda4                       8:4    0     1K  0 part  
├─sda5                       8:5    0   300G  0 part  
├─sda6                       8:6    0   250M  0 part  /boot
└─sda7                       8:7    0 184.2G  0 part  
  ├─Distros-SWAP (dm-0)    252:0    0     5G  0 lvm   
  │ └─cryptswap1 (dm-3)    252:3    0     5G  0 crypt [SWAP]
  ├─Distros-ROOTDIR (dm-1) 252:1    0    10G  0 lvm   /
  └─Distros-HOME (dm-2)    252:2    0    95G  0 lvm   /home
sr0                         11:0    1  1024M  0 rom

Best Answer

So the last command shows that your /dev/sda5 partition is not mounted

I don't know what steps did you follow. Let us try to mount it again. So please follow these steps.

First unmount all the partitions by:
```
sudo umount -a
```
Then make a directory Data under /home/linuxer. If already such directory then first remove it,then create:
```
sudo mkdir /home/linuxer/Data
```
Give the permission 777 to the directory Data. You can change the permission according to your need:
```
sudo chmod -R 777 /home/linuxer/Data
```

Now edit the file /etc/fstab. So open in any text editor with root permission and do the changes.

sudo nano /etc/fstab

Then remove the line:

UUID=261ff894-502a-4b5b-8bc7-b53a8ab8e325 /home/linuxer/DATA/   ext4    rw  0   0

and add this:

UUID=261ff894-502a-4b5b-8bc7-b53a8ab8e325 /home/linuxer/Data    ext4 errors=remount-ro 0       1

Press Ctrl+X to close, when prompt to save press Y.

Now mount all the partitions using this command:
```
sudo mount -a
```

Reply if something goes wrong. Your partition should mount automatically when you reboot your system.

Related Solutions

Ubuntu – swapon: /dev/sdb1: swapon failed: Invalid argument

Try

sudo mkswap /dev/sdb1

and then swapon.

Ubuntu – Storing data on second HDD, mounting

Best not to use /mnt, but create a new /mnt/data or just /data. You may want other mounts in /mnt and those would remove the data partitions (I have done that in testing a /mnt of something).

After you copy all your data folders like Music to the partition on your other drive. Unmount your temporary mount if it is just temporary.

NOTE: The mount point can be anywhere. If it's in your /home or /media folders it will show up under "Places". If it's directly off "/" or /mnt it will not. I prefer /mnt so I do not see it other than thru the links.

sudo mkdir /mnt/data
sudo chown $USER:$USER /mnt/data
sudo chmod -R a+rwX /mnt/data

Note: The big "X" will also not make files executable unless they were executable to begin with. find your UUID, entry below shows example with UUID, must be yours

sudo blkid

Edit fstab with your UUID, use ext4 or depending on format:

sudo -H gedit /etc/fstab

UUID=a55e6335-616f-4b10-9923-e963559f2b05 /mnt/data ext4 relatime 0 2

Verify entry is ok, if no errors it is, if manually mounted as above unmount first:

sudo mount -a

from home (cd ~ if not at home) so default location of link is in /home/$USER cannot have duplicate entries, so move current to temporary location, repeat for each folder you want to move.

mv Music oldMusic

Music is then also the folder in the partition mounted as /mnt/data

ln -s /mnt/data/Music

Or link all folders with one command:

for i in echo /mnt/data/*;do ln -s $i; done

You can delete oldMusic after you confirm everything is ok.

it then should be this with l as first char for link.

fred@Z170N:~$ ll
lrwxrwxrwx  1 fred fred     15 Jun 10  2017 Music -> /mnt/data/Music/

Best Answer

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Ubuntu – swapon: /dev/sdb1: swapon failed: Invalid argument

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