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my ubuntu is working fine until I power off directly when ubuntu does not boot, after selecting ubuntu option to go to ubuntu, it simply displaying small cursor at the top left hand side and got stuck, so I start of restarting after long time when I am not able to restart with restart button on my cpu I power off directly and when I start cpu again when I try to enter in to ubuntu again it prompts initramfs, I face these type of problems before also but solved with few commands given in some links when I am try to follow the same procedure I am not able to mount my Ubuntu partition it self it does nothing for few minutes say around 30-40mins and then it prompts with the below message

DBus error org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

can any one please suggest with this

Thanks Arjun

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I think that for the variety of problems your hardware is faulty or your installation is seriously damaged. Run memcheck (I believe you have that option in the grub) if you find no errors do a backup of all your personal information and reinstall the system. –  Braiam Sep 19 '13 at 1:58
Or did you encrypt the concerning partition ? - then there is no access possible with live-CDs - no matter which. –  dschinn1001 Sep 19 '13 at 15:04

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