ok,i tried editing fstab below is fstab file details
# /etc/fstab: static file system information.
#
# file system mount point type options dump pass
proc/proc procdefaults0 0
# /dev/sda7
UUID=268bde23-9222-4680-86d4-ccad2705eec6 /
** Changed in: ubuntu
Status: New = Invalid
** bug changed to question:
https://answers.launchpad.net/ubuntu/+question/37228
--
Hardy nags
https://bugs.launchpad.net/bugs/227187
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