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I just recover my /etc/fstab file using THIS

But after reboot it says:

Mount failed press S to skip and M to mount manually. on S it skip all services and just start with mount only default drive

on this system /etc/fstab looks like this. which i generated now.

UUID=e8008245-01d3-4df3-b409-8036ad7cd0d0 / ext4  default    0     2
UUID=ff122186-e22b-4ba6-a8fc-36ef76150bea / ext4  default    0     2
UUID=81aa6aad-9d95-4f48-aa68-cf2b4a23f4aa / ext4  default    0     2
UUID=7f83f0bf-31b0-4977-97ed-a40d6c8c0c9a / ext4  default    0     2
UUID=4e8e58d8-ef0b-4ebd-8403-8fc81d3121f1 swap 

what mistake i am doing in above file? What other option do we have to use rather than "Default" or mount except '/'. I have tried doing.

/boot, /, /sda2, /sda1. it give erros like:

  • unrecognized mount option "default" or missing value
  • mountall: mount /dev/sda5 [725] terminated with status 32
  • mountall: filesystem counld not be mounted: /dev/sda5

Running command: lsblk -o NAME,FSTYPE,UUID

NAME   FSTYPE UUID
sda
ââsda1 ext4   e8008245-01d3-4df3-b409-8036ad7cd0d0
ââsda2 ext4   ff122186-e22b-4ba6-a8fc-36ef76150bea
ââsda3
ââsda5 swap   4e8e58d8-ef0b-4ebd-8403-8fc81d3121f1
ââsda6 ext4   81aa6aad-9d95-4f48-aa68-cf2b4a23f4aa
ââsda7 ext4   7f83f0bf-31b0-4977-97ed-a40d6c8c0c9a
sr0
  • 2
    The obvious one: You have four different partitions being mounted to the same mount point (and to /, at that). I'd guess that at least one of those partitions doesn't exist. – muru Nov 6 '14 at 7:53
  • on sudo blkid it shows five UUID drives it means it have four partitions and one swap memory. Do i have to change mount point like /dev/sda1,/dev/sda2,/dev/sda3,/dev/sda4 ? – Sarz Nov 6 '14 at 7:56
  • 2
    You may have five partitions, but nobody has five partitions mounted on root. Perhaps one of those is an LVM member. What's the output of sudo lsblk -o NAME,FSTYPE,UUID? – muru Nov 6 '14 at 7:58
  • This is the output: NAME FSTYPE UUID sda ââsda1 ââsda2 ââsda3 ââsda5 ââsda6 ââsda7 sr0 – Sarz Nov 6 '14 at 7:59
  • Now with sudo, Edited – Sarz Nov 6 '14 at 8:21
3

Since 7f83f0bf-31b0-4977-97ed-a40d6c8c0c9a is the root partition, mount only it on /, so your fstab will look like this:

UUID=7f83f0bf-31b0-4977-97ed-a40d6c8c0c9a / ext4  errors=remount-ro    0     1
UUID=4e8e58d8-ef0b-4ebd-8403-8fc81d3121f1 swap

Ubuntu uses errors=remount-ro for / by default, and it is helpful in keeping the system running, but preventing future damage, if there disk errors.

And according to man fstab:

   The sixth field (fs_passno).
          This field is used by the fsck(8) program to determine the order
          in  which  filesystem  checks are done at reboot time.  The root
          filesystem should be specified with a fs_passno of 1, and  other
          filesystems  should have a fs_passno of 2.

So the last number should be 1 for /.

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