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Thread: Ubuntu not enough space on AWS EC2

  1. #1
    Join Date
    Dec 2011
    Beans
    6

    Ubuntu not enough space on AWS EC2

    I have 25GB volume on EC2. OS is Ubuntu 12.04 LTS. I can connect to it, but cannot even write 1KB. I tried to delete some files and write again - the same result - not enough space.


    I tried to check free space and got this error.


    df -h
    df: cannot read table of mounted file systems: No such file or directory


    Then I tried to get directory sizes. It seems that only 13GB from 25GB is full:


    du -h --max-depth=1
    18M ./boot
    16K ./lost+found
    4.0K ./tmp
    83M ./lib
    192K ./home
    8.7M ./bin
    4.0K ./selinux
    4.0K ./opt
    100K ./root
    8.0K ./dev
    du: cannot access `./proc/1312/task/1312/fd/4': No such file or directory
    du: cannot access `./proc/1312/task/1312/fdinfo/4': No such file or directory
    du: cannot access `./proc/1312/fd/4': No such file or directory
    du: cannot access `./proc/1312/fdinfo/4': No such file or directory
    0 ./proc
    7.9M ./sbin
    434M ./usr
    172K ./run
    13G ./var
    0 ./sys
    4.0K ./srv
    4.0K ./mnt
    4.0K ./lib64
    4.0K ./media
    5.8M ./etc
    13G .


    Mounts


    mount
    sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
    proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
    udev on /dev type devtmpfs (rw,relatime,size=1912272k,nr_inodes=478068,mode=7 55)
    devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode =000)
    tmpfs on /run type tmpfs (rw,nosuid,relatime,size=768100k,mode=755)
    /dev/disk/by-label/cloudimg-rootfs on / type ext4 (rw,relatime,user_xattr,acl,barrier=1,data=ordered )
    none on /sys/fs/fuse/connections type fusectl (rw,relatime)
    none on /sys/kernel/debug type debugfs (rw,relatime)
    none on /sys/kernel/security type securityfs (rw,relatime)
    none on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
    none on /run/shm type tmpfs (rw,nosuid,nodev,relatime)


    How can I solve this problem?
    Last edited by cariboo; September 1st, 2013 at 04:30 PM. Reason: normalize font to comply with forum C of C

  2. #2
    Join Date
    Jun 2006
    Location
    Houston, TX
    Beans
    1,298
    Distro
    Ubuntu 6.06

    Re: Ubuntu not enough space on AWS EC2

    I think you are missing a key part...
    lee@dev01:~$ mount
    /dev/sdb1 on / type ext4 (rw,errors=remount-ro)
    proc on /proc type proc (rw,noexec,nosuid,nodev)
    sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
    none on /sys/fs/fuse/connections type fusectl (rw)
    none on /sys/kernel/debug type debugfs (rw)
    none on /sys/kernel/security type securityfs (rw)
    udev on /dev type devtmpfs (rw,mode=0755)
    devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
    tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
    none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
    none on /run/shm type tmpfs (rw,nosuid,nodev)
    Note how in yours / is not mounted... Do you have a full system, or the Amazon static Ubuntu you can't really modify?

  3. #3
    Join Date
    Nov 2008
    Location
    S.H.I.E.L.D. 6-1-6
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Ubuntu not enough space on AWS EC2

    Quote Originally Posted by bojloc View Post
    I have 25GB volume on EC2. OS is Ubuntu 12.04 LTS. I can connect to it, but cannot even write 1KB. I tried to delete some files and write again - the same result - not enough space.


    I tried to check free space and got this error.


    df -h
    df: cannot read table of mounted file systems: No such file or directory


    Then I tried to get directory sizes. It seems that only 13GB from 25GB is full:


    du -h --max-depth=1
    18M ./boot
    16K ./lost+found
    4.0K ./tmp
    83M ./lib
    192K ./home
    8.7M ./bin
    4.0K ./selinux
    4.0K ./opt
    100K ./root
    8.0K ./dev
    du: cannot access `./proc/1312/task/1312/fd/4': No such file or directory
    du: cannot access `./proc/1312/task/1312/fdinfo/4': No such file or directory
    du: cannot access `./proc/1312/fd/4': No such file or directory
    du: cannot access `./proc/1312/fdinfo/4': No such file or directory
    0 ./proc
    7.9M ./sbin
    434M ./usr
    172K ./run
    13G ./var
    0 ./sys
    4.0K ./srv
    4.0K ./mnt
    4.0K ./lib64
    4.0K ./media
    5.8M ./etc
    13G .


    Mounts


    mount
    sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
    proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
    udev on /dev type devtmpfs (rw,relatime,size=1912272k,nr_inodes=478068,mode=7 55)
    devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode =000)
    tmpfs on /run type tmpfs (rw,nosuid,relatime,size=768100k,mode=755)
    /dev/disk/by-label/cloudimg-rootfs on / type ext4 (rw,relatime,user_xattr,acl,barrier=1,data=ordered )
    none on /sys/fs/fuse/connections type fusectl (rw,relatime)
    none on /sys/kernel/debug type debugfs (rw,relatime)
    none on /sys/kernel/security type securityfs (rw,relatime)
    none on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
    none on /run/shm type tmpfs (rw,nosuid,nodev,relatime)


    How can I solve this problem?


    When setting up the instance you should have a screen like below - make sure youve selected the volumes properly
    snapshot1.png

    df -h should look like
    snapshot2.jpg
    Last edited by sandyd; August 31st, 2013 at 12:22 AM.
    Don't waste your energy trying to change opinions ... Do your thing, and don't care if they like it.

  4. #4
    Join Date
    Dec 2011
    Beans
    6

    Re: Ubuntu not enough space on AWS EC2

    Here is 2 screenshots from EC2 control panel

    http://clip2net.com/s/5FcLVi
    http://clip2net.com/s/5FcNmA

  5. #5
    Join Date
    Dec 2011
    Beans
    6

    Re: Ubuntu not enough space on AWS EC2

    cat /etc/mtab cat: /etc/mtab: No such file or directory

    cat /etc/fstab
    LABEL=cloudimg-rootfs / ext4 defaults 0 0
    Last edited by bojloc; August 31st, 2013 at 10:04 AM.

  6. #6
    Join Date
    Dec 2011
    Beans
    6

    Re: Ubuntu not enough space on AWS EC2

    Quote Originally Posted by houstonbofh View Post
    I think you are missing a key part...


    Note how in yours / is not mounted... Do you have a full system, or the Amazon static Ubuntu you can't really modify?

    How can I mount it? I can modify this instance.

  7. #7
    Join Date
    Jun 2006
    Location
    Houston, TX
    Beans
    1,298
    Distro
    Ubuntu 6.06

    Re: Ubuntu not enough space on AWS EC2

    The key part missing is your root directory, but in the system and in the fstab. This is a major issue... I would start with a reboot and see if the root is found again.

  8. #8
    Join Date
    Dec 2011
    Beans
    6

    Re: Ubuntu not enough space on AWS EC2

    I tried to reboot - nothing happens

  9. #9
    Join Date
    Feb 2008
    Location
    Pelican Bay Correctional
    Beans
    Hidden!

    Re: Ubuntu not enough space on AWS EC2

    Do you realize how hard it is for me to explain to people that I know you?

  10. #10
    Join Date
    Dec 2011
    Beans
    6

    Re: Ubuntu not enough space on AWS EC2

    There are enough space on root - 25GB. And only 13GB are used. But I cannot write anything.

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