[haiku-bugs] Re: [Haiku] #8990: intel partiton addon allows creating partitions > 2TB (easy)
- From: "phoudoin" <trac@xxxxxxxxxxxx>
- Date: Mon, 26 Jan 2015 11:24:47 -0000
#8990: intel partiton addon allows creating partitions > 2TB (easy)
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Reporter: luroh | Owner: bonefish
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Partitioning Systems/Intel | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 1 | Platform: All
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Comment (by phoudoin):
> If the sector size is 2kB nothing prevents MBR from supporting 8TB
partitions.
But mostly all software from BIOS to other operating systems and Disk
tools will break hard using such MBR. And eventually corrupt data while
doing it.
Better be on the safe side when it comes to user's data.
Even if someone in the future start to play with this partition add-on
BlockSize() value, the more explicit check will stands on the safe side.
The reality is not that MBR unit is sector, the reality is that most soft
using MBR info assumes a 512 bytes sector and could do BAD thing if MBR
was written with another size in mind. That's why 4k disk reports emulated
512 sizes sectors until everybody use GPT and/or operating systems
supporting native 4K sectors.
Again, it's not about code quality, it's about (your) data safety.
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Ticket URL: <https://dev.haiku-os.org/ticket/8990#comment:14>
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