Hi, RehabMan,
You have been helpful in the past and hopefully you can be helpful again.
You haven't heard of me for some time as I had (past tense) a good working system, which was ruined (I don't know why) when trying to update to Yosemite. To remind you, I have an IB 4540s with a standard screen. It was a GPT formatted disk, dual boot Windows 8.1. I am loathe to reinstall Windows, so please if there is a way around that, let me know!
The background was that the update to Yosemite failed due to a claimed corrupt OSX partition (see below). So I tried to reinstall using Clover as a bootloader and got to the partitioning (erasing/formatting) of the journaled HFS+ stage, which then just sat there. The reason is as you point out in this thread but your solution is not so transparent to the average (or even experienced) Hackintosher. Moreover, I want to retain as best as possible my Windows and the supporting partitions (in other words, I don't want to solve one problem and create more).
The disk structure is/was as below. Perhaps the corrupt OSX partition (checked only on that partition with the Disk Manager) was related to this structure or perhaps there was an error specific only to that (the common sense view, given the limitation of error checking/fixing to that partition). But certainly, the small EFI and MSR (which limits by the small size and proximity the flexibility for change) do not seem to bide well for a reinstall of OSX. (I should add, that as per your multiboot guide, Windows was added post OSX previously, but now the situation has to be in reverse, as Windows remains sound and bootable).
/disk0 GUID_partition scheme 750.2 GB
/disk0s1 EFI 209.7 MB
/disk0s2 Microsoft Reserved 134.2 MB
/disk0s3 WINDOWS 669.1 GB
/disk0s4 a GUID (identical to that for disk0s5) 367.0 MB
/disk0s5 a GUID (same as above, amazingly!) 367.0 MB
I have checked that MS knows about the two GUID partitions, which are related to the recovery environment for Windows. Previously there was a /disk0s6 (OSX) and a /disk0s7 (the OSX Recovery Partition) but I deleted these using the MS partitioning tool.
I hope you can help with an intelligible to mortals strategy.
Regards,
Stuart