On the Arch image, the first MB is unused. What is the reason for this?
It is the same with the Debian image.
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alexchamberlain
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First MB
Developer of piimg, a utility for working with RPi images.
Re: First MB
You want to align your partitions to the SD card erase blocks (which are typically 1, 2, 4 megabytes). The wheezy images align partitions to 4MiB.
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alexchamberlain
- Posts: 121
- Joined: Thu Jun 14, 2012 11:20 am
- Location: Leamington Spa, UK
Re: First MB
I see, and you can't use the first MiB because of this? (0 is a multiple of 1, 2 and 4, right?)asb wrote:You want to align your partitions to the SD card erase blocks (which are typically 1, 2, 4 megabytes). The wheezy images align partitions to 4MiB.
What are erase blocks?
Developer of piimg, a utility for working with RPi images.
Re: First MB
Take a read of: http://lwn.net/Articles/428584/
You can't stick the first partition starting at 0 bytes because you need the partition table.
You can't stick the first partition starting at 0 bytes because you need the partition table.
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alexchamberlain
- Posts: 121
- Joined: Thu Jun 14, 2012 11:20 am
- Location: Leamington Spa, UK
Re: First MB
I'd completely forgotten about the partition table! Thanks!asb wrote:Take a read of: http://lwn.net/Articles/428584/
You can't stick the first partition starting at 0 bytes because you need the partition table.
Developer of piimg, a utility for working with RPi images.