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I tried both Ubuntu 11.04,11.10 & 12.04. It frequently freezes at the purple screen (the screen before the 5-dot ubuntu screen) I wait for 10-15 mins and when I force re-boot, it ends up showing the Ubuntu BusyBox black screen with initramfs prompt. I checked many forums and many of them said to try this out----> 1.Boot using Ubuntu LiveUSB
2.In terminal,

sudo fdisk -l

I see sda7 as my linux partition ( I hv windows 7 also installed)

sudo fsck /dev/sda7

It shows many things.One of them I remeber is "Recovering journal"

and press ENTER for whatever questions asked during the process.Now when I go back ,remove liveUSB and boot Ubuntu normally,it works fine.But the same problem (freezing at the purple screen->force reboot->ends in BusyBox) comes up after 2 or 3 re-boots.

No problems when I install ubuntu 10.04 or 10.10. Then I thought it might be a problem with the kernal I m using.So I installed the kernal which ubuntu 10.10 uses, but it was of no use.The problem still remains.

Someone please help. Thanks in advance

Ajith
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    You may have a hardware problem that does not manifest itself with the earlier releases. I would start by doing a memtest to ensure that my RAM is intact. Also I would check at least the SMART of my hard disk for reallocated/pending reallocation sectors. – Nicolay Doytchev May 06 '12 at 17:16
  • The memtest didnt show any problems. – Ajith May 06 '12 at 18:30
  • Now check the hard disk. – Nicolay Doytchev May 09 '12 at 18:17
  • This question should instead be filed as a bug report, and [as such](http://askubuntu.com/questions/1317/what-to-do-with-questions-that-describe-known-bugs/) is off-topic, thanks! [Instructions on filing a bug report are here](http://askubuntu.com/questions/5121/how-do-i-report-a-bug). – Jorge Castro May 15 '12 at 01:38

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