Linux Data Recovery – Option Into The Error – No Such Device

Although Linux remains less used compared to Windows, it’s famous for its innovative and enhanced capabilities. Virtually daily, you can observe a modification to boost your Linux variant. With greater variety of amenities, safe use and improved programming Linux is gaining popularity. But, with specific minor incompatibility problems with other important applications of prior versions, leading into information loss, can force you to think about something such as linux data recovery.


You’ve got an HP 6930p notebook with karmic 9.0 installed on a 250 GB Western Digital hard disk drive. Your system indicates an error and doesn’t boot farther after recent upgrade of this ‘update supervisor ‘. The situation contributes to information inaccessibility and requirement of a Linux retrieval program arises. The error message that flashed on your display may read as under:

No such device: ba123456-7980-abcd-efghijklmnop

Failed to boot default entrances

Press any key to continue


There’s not any stated reason for the aforementioned error up to now. But, there is certain issue using the UUID characteristic of this GRUB and this is among those reflections. In a sense, we could say that, there’s some layout related problems and the mistake comes from the form or another, thereby.


To Be Able to solve the above error, follow the steps precisely the way it’s:

1) Attempt to boot the machine from karmic 9.10 CD

2) Press the primary ‘C’ ‘ to input the control line style

3) Attempt to place ‘sda1’ as the ‘origin’ and boot up out of it by composing in the command line as-

Set root (hd0,1)

linux /vmlinuz root=/dev/sda1 ro

initrd /initrd.img

After, able to boot to the machine, open /etc/default/grub by-

Then, disable the UUID function –

Last, upgrade Grub2 by wringing –

sudo update-grub

Above all, the above steps will fix the problems, but if neglected, then you need to restore your data in the upgraded backup. Additional if backup isn’t available, then to recoup the inaccessible information, you want to spend the support of any Linux retrieval program.

Main Components Of An Electrical Panel

An Electrical Panel plays a significant part in dispersing power across the business. It’s also regarded as the heartbeat of an electrical system since it is helpful to transfer electricity in all around the business. With no doubt, electricity come into your business through cables and cables get this electricity from this system since its primary purpose is to safely move electricity into sub panels or circuits.

A number of its forms are available on the current market, which are famous for their different purpose. The role of a circuit breaker is dependent upon its structure and use in a market. All these are usually consisting of some fundamental elements that you ought to be aware of before making any decision related to its purchase. So, take a look to understand about its elements.

Main Breaker: One of the main elements of a federal pacific electrical panel is the principal breaker that helps to restrict the amount of electricity to guard the circuits. It gives protection to the cables or other pollutants from coming into contact with moisture or some other dust particle.

Circuit breakers: Another significant part of an electrical panel would be circuit breakers, which assists to on/off the primary supply. It’s actually valuable in the event of emergency to close down the major power to prevent any large accident on your website.

Neutral bus: It normally links to the main circuit’s unbiased cable that helps to reunite electrical energy back into the breaker panel after flowing electricity to a machine

Grounding bus pub: It is usually designed to earth wires from several circuits and joins them to itself. This is the final but not the least element which an electrical panel has to need to complete its purpose.

In brief, its smooth functioning is dependent upon its above-mentioned elements, making it to finish its function correctly without causing any trouble. Various kinds of panels demanded different codes; therefore, you need to always think about the requirement of the business before buying it. If you would like to decrease the odds of damaging the electrical panel then put in it in a location that’s far away from any dust and dampness.