I had to use the alternative Ubuntu installer to enable ata raid, then
everything worked smoothly using just 2 partitions (ext4 and swap)
created by MiniTool Partition Wizard from Windows (although I had to
reformat my swap partition using the Ubuntu installer). It seems like
this is not an option
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https://bugs.launchpad.net/bugs/1030223
Title:
grub fails to installon dev/mapper
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Public bug reported:
Hello,
I'm trying to install Ubuntu 12.04 64bit on Sony Vaio Z131A2JL alongside
Windows 7.
I've created a partition of free space for Ubuntu on Windows first then created
4 partitions (/boot, /, /home, and swap)
using the Ubuntu installer on /dev/mapper (I saw that tutorial
