[ubuntu-uk] mbr

Liam Proven lproven at gmail.com
Sat Jan 28 21:22:28 UTC 2012

On 28 January 2012 20:29, Andy Smith <andy at bitfolk.com> wrote:
> Hi Nick,
> On Sat, Jan 28, 2012 at 08:00:10PM +0000, thegeeksquadron at ymail.com wrote:
>> Just curious to know this, as I don't format disks too often, but does formatting a HD rid it of any bad sectors? I assume not, but I'm a tad perplexed!
> Not as such. Also it depends what you mean by "format". By "format",
> most people mean just creating a partition table. This doesn't write
> to the whole disk, so can't actually do anything to (most of) the
> disk.

Hmm. I've not knowingly met that usage, but I will remember that as a warning!

> If you try to write a bad sector on a modern disk then it will
> usually remap that sector to one from its pool of spare sectors.
> That has the appearance of "fixing" the sector. It's normal for this
> to happen very rarely over the whole life of the drive.
> When there is serious damage to the mechanism of the drive, the
> errors can come in a flood and deplete all the spare sectors
> quickly, which is why it's important to replace a drive when the
> remapped sectors count keeps going up.

Yep, WHS.

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