[arch-general] How to align partitions?
Paul Gideon Dann
pdgiddie at gmail.com
Mon Sep 3 05:40:29 EDT 2012
On Friday 31 Aug 2012 01:45:40 Stayvoid wrote:
> > Recent versions of fdiks, parted, gdisk do it for you.
> I use parted.
> AFAICT it can tell that partitions aren't aligned, but there is no
> option to do it automatically.
> Could you help me to do the math? All these bytes give me a headache.
This is what I do:
In parted, enter "unit b" to switch to bytes, because then you know what
you're working with.
I like to start my first partition at 1048576, which is 1Mb into the disk, and
end it at 104857599, which makes it 99Mb long. After that, I use a single
partition spanning the rest of the disk, starting at 104857600 (100Mb), and
ending at a multiple of (1024*1024=1048576). I use LMV or RAID+LVM on top of
Don't forget that the end point for each partition will be one byte before a
Mb marker, so my first partition, ending at 104857599, is 1b before the 99Mb
mark. The size of the partition includes this end byte, so the partition is a
full 99Mb's worth of bytes.
I hope this helps,
More information about the arch-general