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Low level format u Linuxu

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Munja666

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icon Low level format u Linuxu18.05.2009. u 18:57 - pre 180 meseci
Nalazio sam programcice na sajtovima proizvodjaca diskova za low level formatiranje ali samo u dos/win varijanti. Zanima da li postoji tako nesto za Ubuntu ili bar neka priblizna komanda iz konzole koja bi odradila low level format diska? Inace hard disk je Hitachi...
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icon Re: Low level format u Linuxu18.05.2009. u 21:54 - pre 180 meseci
Preporučujem da pročitaš malo šta kažu ovde: Disk formatting, u cilju demistifikovanja "lowlevel" terminologije.


Citat:
Disk Reinitialization

While it's impossible to perform an LLF on most modern hard drives (since the mid-1990s) outside the factory, the term "low-level format" is still being used (erroneously) for what should be called the reinitialization of a hard drive to its factory configuration (and even these terms may be misunderstood). Reinitialization should include identifying (and sparing out if possible) any sectors which cannot be written to and read back from the drive, correctly. The term has, however, been used by some to refer to only a portion of that process, in which every sector of the drive is written to; usually by writing a zero byte to every addressable location on the disk; sometimes called zero-filling.

The present ambiguity in the term "low-level format" seems to be due to both inconsistent documentation on web sites and the belief by many users that any process below a "high-level (file system) format" must be called a low-level format. Instead of correcting this mistaken idea (by clearly stating such a process cannot be performed on specific drives), various drive manufacturers have actually described reinitialization software as LLF utilities on their web sites. Since users generally have no way to determine the difference between a true LLF and reinitialization (they simply observe running the software results in a hard disk that must be partitioned and "high-level formatted"), both the misinformed user and mixed signals from various drive manufacturers have perpetuated this error. Note: Whatever possible misuse of such terms may exist (search hard drive manufacturers' web sites for all these terms), many sites do make such reinitialization utilities available (possibly as bootable floppy diskette or CD image files), to both overwrite every byte and check for damaged sectors on the hard disk.

One popular method for performing only the "zero-fill" operation on a hard disk is by writing zero-bytes to the drive using the Unix dd utility (available under Linux as well) with the "/dev/zero" stream as the input file (if=) and the drive itself (either the whole disk, or a specific partition) as the output file (of=).

 
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