Boot from REFS volumes

Are there any plans to allow boot from REFS-formatted volumes in Windows Server Tech Preview or Windows 10 Tech Preview? Or maybe we can start by Recovery Environment boot from REFS at least?
Windows Server 10 cannot boot from ReFS. Eventually we'll see ReFS bootable, dedup enabled with ReFS and so on. But still not in Windows Server 10 :(
StarWind Virtual SAN clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

Similar Messages

Mac doesn't boot from start volume - blinking folder with question mark

Hi,
my iMac with Snow Leopard 10.6.6 issn't booting anymore from the Hard Drive. It shows a blinking folder with a question mark. After starting, before the folder appears, I hear a two or three times "clack" sound with a following silent speed down of a fan.
So I started from the installation DVD. On the "Choose Startup Disk" Menu there appears only the DVD and network. In Terminal by using "df" i only see my external Hard Disk, the DVD, and some /private/var folders. By listing the "/Volumes" directory only the external disk and the DVD appear.
I tried to restore a Time Machine backup from the external disk. After choosing the backup in the dialog "Select for Destination" it says "Searching for disks" but it doesn't find any after waiting some minutes. It also shows "This disk does not have enough space to restore your system" but there issn't any disk selected.
For me it looks like the Hard Drive with my system is dead. Does anybody has another idea what I can try?

unfortunately I can't start the single user mode. It is always booting from the installation DVD. I tried mouse clicked at boot to eject it, but it doesn't work. Also I can't come to the Startup Volume menu by holding the option key. I always come to the installation menu. There I can't eject the disk from Disk Utility, because it is working on it. I also can't eject it using the eject key on the keyboard in the Startup Disk menu. From the Terminal I can't access my Hard Disk from /Volumes and therefore also can't access my user's home directory.

"Mac OS X cannot boot from this volume"

Got a new 120 GB IDE hard drive for my girlfriend's eMac, but the installer is insisting that the operating system can't be installed onto it. Like, this stop sign on the icon of the HD with an exclamation point in it. I really don't want to crack the thing open again just to try it, but maybe the jumper block is in the wrong place? Any help is GREATLY appreciated as I am nearing lividness. Thank you!

Only other thing that comes to mind is - what eMac does GF have? Perhaps the earlier models can't handle 120GB? (Stretching here)
Looks like you may be delving back inside the shell... Has GF got long skinny fingers? I know I needed my fiancée's for that power button cable!
Message was edited by: cosmichobo

Cannot boot from external HD

I have an external HD which my iMac backups my system daily. I use CCC for that and it has run fine so far. I never had any problem booting from that HD either by using Option/Alt during booting or thru using System Preferences.
Not now anymore. The iMac (late 2013, 27", FusionDrive) refuses to boot from it.
In System Preferences I can see the external HD as a bootable device. However the iMac still uses the internal drive.
When using Option/Alt I only see the internal drive and the restore partition.
I have made a (new) full backup to the external HD and CCC says it "blessed" the HD. But not possible to boot from. Further I did things like resetting Pram, resetting SMC. But does not help.
So next I installed the iMac from scratch (meaning starting the Internet restore and then do a full erase). But still the iMac will not boot from external.
I have connected the external HD to another Mac (Mini) and there it boots flawlessly. So to me there must be a problem with the iMac. But what can I do, this is a serious problem since I now have a backup but this can not fully be used?

- The issue is only if you want to boot from a USB3 external device.
- There are other ports on your machine that you can boot from, refer: Startup Manager: How to select a startup volume
- The ASC is not where Apple make announcements, Refer to their main website.
- Your question / query / feedback should be referred to : https://ssl.apple.com/support/feedback/
- If you find from Apple a resolution, post back. We would like to hear !
Cheers

Problems in booting from Firewire disk

I had an iMac 400 G3 until recently, just got a mini Core Duo 1.66.
My Firewire 120 GB disk was always the main disk, but now I cannot install the Tiger disk that came with the Mac mini on it (it says my Mac cannot boot from this volume), even though it recognizes the disk just fine when I boot from the Mini's HD.
Maybe it's the system in it, since it has the 10.4.8. with PPC updates? Should I erase the system from my disk and try to install OS X on it?
Thanks a lot.

The simplest way to do this is to connect your external drive to the mini and copy all your data from it to the mini's internal drive. Don't copy applications or MacOS, just the documents and files, video, music etc. Then use Disk Utilities (in Applications/utilities) to reformat the external.
Download and install a copy of CarbonCopyCloner (from www.versiontracker.com) and use it to copy the internal drive to the external.
Then open System Preferences/Startup Disk and set the external as the startup volume. Reboot and the system should then boot to the external which has a fully compatible copy of MacOS, complete with your documents, files, music etc.
The startup Disk preference pane can then be used to switch back to the internal if you should need to do so.

Not booting from 10.4.8 volumes after upgrade from 10.4.7

I'm sorry to report that my aged G4 450 MHz AGP with 4 internal Hard disk drives no longer boots from any of the 2 volumes upgraded to Mac OS X 10.4.8 as soon as it was started from another volume!
All was working fine as long as 10.4.7 was installed on the 2 232 GB disks connected to the SIIG ATA133 controller. I could boot from any OS on any of the 4 disks, 5 partitions:
internal ATA66 bus:
18 GB disk, 2 partitions: 'IBM_18GB' with OS 9.2.2 and TechTool Pro's 'eDrive' with 10.4.7
71 GB disk, 1 partition 'IBM_71GB' with OS 9.2.2
PCI SIIG ATA133 controller:
232 GB disk, one partition 'I1232GB' with 10.4.7, now upgraded to 10.4.8 and no longer bootable
232 GB disk, one partition 'I2232GB' with 10.4.7, now upgraded to 10.4.8 and no longer bootable
Now I can only boot from the Mac OS 9.2.2 or the eDrive 10.4.7 partitions.
What I did so far: 'I2232GB' was my main OS X startup volume, 'I1232GB' contains a clone of it, plus additional folders like software base and backups.
After upgrading 'I2232GB' to Mac OS X 10.4.8 through Software Update and repairing permissions all was OK as long as the Mac was just shut down or re-started: it always booted up in Mac OS X 10.4.8 from 'I2232GB' without any problems.
The next day I booted from 'I1232GB' to do the same there.
Afterwards I could no longer boot in Mac OS X 10.4.8 from 'I2232GB' nor in in Mac OS X 10.4.8 from 'I1232GB': it just gets to the grey screen with the Apple logo, but the round circle underneath indicating some progress never appears. I left it there for hours: it just hangs.
With the Option key held at startup I could boot from the other partitions with Mac OS 9.2.2 or the eDrive with 10.4.7. None of their Startup Control Panels was able to get me back to 10.2.8!
So I booted from the TechTool Pro 4.5.1 DVD to Optimize both volumes, 'I1232GB' & 'I2232GB', always Files only.
Then I booted from the DiskWorrior 3.0.3 CD to rebuild the directories of both volumes, 'I1232GB' & 'I2232GB'.
Still I can not boot from either 'I1232GB' or 'I2232GB' in Mac OS X 10.2.8!
Downloaded the Mac OS X 10.2.8 Compo Update (for PPC) and installed it onto both 'I1232GB' & 'I2232GB' while booted from the eDrive which I keep on Mac OS X 10.4.7 - no luck either, still I can not boot from either 'I1232GB' or 'I2232GB' in Mac OS X 10.2.8!
Then I backed up the users folder from 'I2232GB' onto 'I1232GB', booted from Mac OS 9.2.2 and used Intech's Hard Disk Speedtools 3.6 to format 'I2232GB', afterwards initialized it with Alsoft's Plus Maximizer Extension for a Block Size of 512 Bytes.
Installed Mac OS X 10.4 from DVD, as well as iLive '06 and upgraded everything to the latest releases with Software Update. All was working fine with all the required reboots until another startup volume was chosen: afterwards again I can no longer boot back into Mac OS X 10.2.8 on the fresch installed 'I2232GB'!
Any help would be appreciated.
Here is some information found by System Profiler from Mac OS X 10.4.7, eDrive, let me know if you need more:
Hardware Overview:
Machine Name: Power Mac G4 (AGP graphics)
Machine Model: PowerMac3,1
CPU Type: PowerPC G4 (2.8)
Number Of CPUs: 1
CPU Speed: 450 MHz
L2 Cache (per CPU): 1 MB
Memory: 2 GB
Bus Speed: 100 MHz
Boot ROM Version: 4.2.8f1
Serial Number: XA00715VHSF
Sales Order Number: M7628LL/A
ATA Bus:
IBM-DPTA-372050:
Capacity: 19.12 GB
Model: IBM-DPTA-372050
Volumes:
IBM_18GB:
Capacity: 13.12 GB
Available: 6.96 GB
eDrive:
Capacity: 6 GB
Available: 3.03 GB
IBM-DTLA-307075:
Capacity: 71.59 GB
Model: IBM-DTLA-307075
Volumes:
IBM_71GB:
Capacity: 71.59 GB
Available: 39.65 GB
ATA Bus:
PIONEER DVD-RW DVR-107D:
Model: PIONEER DVD-RW DVR-107D
Firmware Revision: 1.21
Interconnect: ATAPI
Burn Support: Yes (Apple Shipped/Supported)
Cache: 2000 KB
IOMEGA ZIP 100 ATAPI:
Model: IOMEGA ZIP 100 ATAPI
ACARD,6880M:
Name: ACARD,6880M
Type: scsi
Bus: PCI
Slot: SLOT-C
Vendor ID: 0x1191
Device ID: 0x0009
Subsystem Vendor ID: 0x1191
Subsystem ID: 0x0009
Revision ID: 0x0003
SCSI Parallel Domain 65536:
Initiator Identifier: 7
ATA HDT722525DLAT80:
Capacity: 232.89 GB
Manufacturer: ATA
Model: HDT722525DLAT80
Revision:
Removable Media: Yes
BSD Name: disk2
OS9 Drivers: Yes
SCSI Target Identifier: 0
SCSI Logical Unit Identifier: 0
S.M.A.R.T. status: Not Supported
Volumes:
I1232GB:
Capacity: 232.89 GB
Available: 14.1 GB
Writable: Yes
File System: HFS+
BSD Name: disk2s3
Mount Point: /Volumes/I1232GB
ATA HDT722525DLAT80:
Capacity: 232.89 GB
Manufacturer: ATA
Model: HDT722525DLAT80
Revision:
Removable Media: Yes
BSD Name: disk3
OS9 Drivers: Yes
SCSI Target Identifier: 2
SCSI Logical Unit Identifier: 0
S.M.A.R.T. status: Not Supported
Volumes:
I2232GB:
Capacity: 232.89 GB
Available: 180.11 GB
Writable: Yes
File System: Journaled HFS+
BSD Name: disk3s3
Mount Point: /Volumes/I2232GB
The RAM consists of 4 identical modules and is about 1 year old:
DIMM0/J21 to DIMM3/J24:
Size: 512 MB
Type: SDRAM
Speed: PC133-333
Status: OK
Many thanks for your help!
Josef
Apple G4 AGP Mac OS X (10.4.8) 4 internal hard disks, dual layer DVD-RW, 2GB RAM

What I did so far: 'I2232GB' was my main OS X
startup volume, 'I1232GB' contains a clone of it,
plus additional folders like software base and
backups.
After upgrading 'I2232GB' to Mac OS X 10.4.8
through Software Update and repairing permissions all
was OK as long as the Mac was just shut down or
re-started: it always booted up in Mac OS X 10.4.8
from 'I2232GB' without any problems.
The next day I booted from 'I1232GB' to do the same
there.
Afterwards I could no longer boot in Mac OS X 10.4.8
from 'I2232GB' nor in in Mac OS X 10.4.8 from
'I1232GB': it just gets to the grey screen with the
Apple logo, but the round circle underneath
indicating some progress never appears. I left it
there for hours: it just hangs.
With the Option key held at startup I could boot from
the other partitions with Mac OS 9.2.2 or the eDrive
with 10.4.7. None of their Startup Control Panels was
able to get me back to 10.4.8!
So I booted from the TechTool Pro 4.5.1 DVD to
Optimize both volumes, 'I1232GB' & 'I2232GB',
always Files only.
Then I booted from the DiskWorrior 3.0.3 CD to
rebuild the directories of both volumes, 'I1232GB'
& 'I2232GB'.
Still I can not boot from either 'I1232GB' or
'I2232GB' in Mac OS X 10.4.8!
Downloaded the Mac OS X 10.4.8 Compo Update (for PPC)
and installed it onto both 'I1232GB' & 'I2232GB'
while booted from the eDrive which I keep on Mac OS X
10.4.7 - no luck either, still I can not boot from
either 'I1232GB' or 'I2232GB' in Mac OS X
10.4.8!
Then I backed up the users folder from 'I2232GB'
onto 'I1232GB', booted from Mac OS 9.2.2 and used
Intech's Hard Disk Speedtools 3.6 to format
'I2232GB', afterwards initialized it with Alsoft's
Plus Maximizer Extension for a Block Size of 512
Bytes.
Installed Mac OS X 10.4 from DVD, as well as iLive
'06 and upgraded everything to the latest releases
with Software Update. All was working fine with all
the required reboots until another startup volume was
chosen: afterwards again I can no longer boot back
into Mac OS X 10.4.8 on the fresch installed
'I2232GB'!
I found several typos in above post, wherever it was 10.2.8 it should have read 10.4.8 - I'm very sorry for confusing you, this would not have made sense, but I found no way to edit the existing text therefore I modified the quote of it here.
I do not need Mac OS X 10.2.8 back, but it would be nice to boot back in Mac OS X 10.4.8 from another volume as the current one - which was working fine before with Mac OS X 10.4.7.
Many thanks,
Josef

Unable to boot from install disc to repair volume

Hi
Recently ran Onyx which told me the volume needs to be repaired (my Macbook has otherwise pretty much been running fine, perhaps a little slow on startup but no major issues). Not very clued up on using Macs sadly so did a little googling about how to go about this.
Am I right in thinking that I definitely need to repair this even though things appear to be running alright? If so, do I do this by booting from the install disc?
I attempted to boot my Macbook from the install disc to run a repair but I just can't seem to get this working! I put the disc in, restart the machine and hold C, but the mac seems to just boot up as normal. Am I doing this incorrectly?
Any help is appreciated, like I say I'm pretty hopeless!

dellywoo wrote:
Hi
Hi, and welcome to the forums.
Am I right in thinking that I definitely need to repair this even though things appear to be running alright?
Yes.
If so, do I do this by booting from the install disc?
Yes.
I attempted to boot my Macbook from the install disc to run a repair but I just can't seem to get this working! I put the disc in, restart the machine and hold C, but the mac seems to just boot up as normal. Am I doing this incorrectly?
Perhaps. See #6 in [Formatting, Partitioning, Verifying, and Repairing Disks|http://web.me.com/pondini/AppleTips/DU.html] (or use the link in *User Tips* at the top of the +Using Snow Leopard+ forum), especially the yellow box there.

1 HFS volume needs repair -- can't boot from OS X Tiger "kernel panic"

I just searched the support discussions and did find an answer so hopefully someone can help me. Today I ran Disk Utility on both my G4 powerbook and G5 desktop. Both have Tiger 10.4.8 on them and have been running good. To my surprise both came back with a message saying:
1 HFS volume checked
Volume needs repair.
So I booted off my Tiger start up disk on the laptop first and went to utility and repair disk and all was good. The message came back that the volume was repaired.
When I tried to do the same thing on my G5 desktop my computer went to a gray screen and gave an error of “kernel panic” with a page long message. I shut the computer down and rebooted normally and all was fine. I then went back to disk utility and clicked on Verify Disk again to see what it said and here is what I got:
Verifying volume “MacOS250”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Illegal name_
Illegal name_
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume MacOS250 needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
So i noticed that under:
Checking Catalog file.
Illegal name_
Illegal name_
came back twice. I have no idea what this means. At this point I tried to boot from DiskWarrior and the computer just sat in a state of limbo for an hour or so. I know DW can take some time but 1 hour was pushing my patients so I shut it down and rebooted normally and all was fine again except I still get the message above. I then methodically backed up all my docs, movies, photos etc to my second hard drive. I tried to boot again from Tiger and got the same “kernel panic” message. Can anyone help me?
Thanks,
Tim
G5 Mac OS X (10.4.8)
G5 Mac OS X (10.4.8)

Maverick922 Before you erase, you might want to try and run fsck first even though it says you are using HFS+
http://docs.info.apple.com/article.html?artnum=106214
Another reason is your version of disk utility on the Tiger disk might may not match the newer version of 10.4.8 My Tiger start-up disk utility is 10.5 while the OS X version on my HD is 10.5.6.
The Finder along with other applications do not like you naming a file with a period in front of it. This turns it into a Unix dotfile and it then becomes hidden.Hence, illegal name.This may have been done by accident or with purpose.
And a little more to read up on, http://docs.info.apple.com/article.html?artnum=302672
If these don't help, sherry johnson's suggestion is probably the next step.

I have a mid-2010 27" Quad Core i5 iMac running 10.8.3. Startup disk recognizes the primary hard drive as a startup volume but will not boot from it. Have tried zapping PRAM, ran disk utility. No errors reported Any thoughts?

I have a mid-2010 27" Quad Core i5 iMac running 10.8.3. Startup disk recognizes the primary hard drive as a startup volume but will not boot from it. Have tried zapping PRAM, ran disk utility. No errors reported Any thoughts?

My bad Eric. The startup preference recognizes the primary as a 10.8.3 startup volume but when u select it the system does not boot. I can only boot from my external backup drive

Has anyone heard whether Win 10 will allow booting from a ReFS partition?

I've been running a few ReFS volumes for a year now under Windows 8.1. It's been flawless.
So...
Will we see Windows 10 enable ReFS for the boot volume?
Maybe this could also give us the easy ability to have a larger than 2 TB boot volume on a BIOS computer?
It would be nice...
-Noel
Detailed how-to in my eBooks:
Configure The Windows 7 "To Work" Options
Configure The Windows 8 "To Work" Options

Ordinarily there should not need to be a key needed.
I am running the pro version on an old netbook and enterprise in a virtual machine
neither asked for a serial to install and updates have been smooth lately, but I have had to make clean installs of both since the original preview was released
glad I could be of help, feel free to come back to the forum in case you need more help
Place your rig specifics into your signature like I have, makes it 100x easier!
Hardcore Games Legendary is the Only Way to Play!
Vegan Advocate How can you be an environmentalist and still eat meat?

Cannot repair disk errors for OSX boot volume using Disk Utility while booted from different disk

I have tried three times to repair my boot volume (OSX 10.6.8 Snow Leopard) permissions using Disk Utility while booted up on a different volume (running Snow Leopard 10.6.4). After hours of Disk Utility reporting that it HAD fixed the problems, an immediate click of "Verify permissions" immediately results in the apparently same continuous stream of permission errors.

Then better luck next time around. Here are some ideas for then:
How to Install Lion Successfully - You must have Snow Leopard 10.6.7 or 10.6.8 Installed
A. Repair the Hard Drive and Permissions:
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. Then select Disk Utility from the Utilities. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.3.) if DW cannot fix the drive, then you will need to reformat the drive and reinstall Snow Leopard.
B. Make a Bootable Backup Using Restore Option of Disk Utility:
Open Disk Utility from the Utilities folder.
Select the destination volume from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the destination volume from the left side list and drag it to the Destination entry field.
Select the source volume from the left side list and drag it to the Source entry field.
Double-check you got it right, then click on the Restore button.
Destination means the backup volume. Source means the internal startup volume.
C. Important: Please read before installing:
If you have a FireWire hard drive connected, disconnect it before installing the update unless you will boot from this drive and install the update on it. Reconnect it and turn it back on after installation is complete and you've restarted.
You may experience unexpected results if you have installed third-party system software modifications, or if you have modified the operating system through other means. (This does not apply to normal application software installation.)
The installation process should not be interrupted. If a power outage or other interruption occurs during installation, use the standalone installer (see below) from Apple Downloads to update. While the installation is in progress do not use the computer.
D. To upgrade to Lion:
Purchase the Lion Installer from the Mac App Store. The download will start quickly. Lion is nearly 4 GBs so a fast internet connection is essential. Download time could run upwards of 4 hours depending upon network conditions and server demands at the time.
Boot From The Lion Installer which is located in your Applications folder.
Follow instructions for installation.

Booting from a USB drive when the System Volume has FileVault2 turned on

Hi, I need to perform some maintenance on my primary volume. (10.9.1 on a mac Mini 2011).
During installation, I enabled FileVault2 to protect my files.
Now when I attempt to run DriveGenius or similar, the tools will demand to boot from a different volume to access the drive.
However, when I boot the system, no other boot choice shows up, neither my Mavericks install USB stick nor my backup clone (created with SmartBackup 3.5.3, used to work on older versions before 10.9)
When selecting "Start Volume" under systems preferences, no other volume will show as a choice, even when the volumes mentioned are attached.
Please advise
TIA

Okay just clarifying my INTERNAL hard drive is most likely dead, I am looking to install and boot from my external hard drive. According to this AHT article
Before you begin
Important: If your Mac was released after June 2013, you will use Apple Diagnostics rather than Apple Hardware Test (AHT). See Using Apple Diagnostics for instructions.
Consider doing some preliminary troubleshooting to determine if your issue is related to hardware. You can try to determine if the cause of your issue is related to hardware or software by following Isolating issues in Mac OS X. AHT can help determine which hardware component may be causing the issue.
Before starting AHT, be sure to disconnect all external devices except the keyboard, mouse, display, and Ethernet adapter. Also disconnect any external optical drives.
My goal is to find a way to boot from my external drive.
"Won't matter, as long as you have the Disc.
To make it botable, you will need to set the Partition Map Scheme (GUID Partition Table) and Format it (Mac OS Extended Journaled) before installing OS X."
The disc or the drive? I assume you mean the drive but according to the document that should be removed.

My iMac (late 2006) no longer boots from FireWire drives, although they contain all the system files.

My iMac (late 2006) no longer starts (boots) from Firewire drives, although they all contain a current system (Mac OS X 10.6.7). If the drives are connected with USB 2, they boot normally. The FireWire drives appear in the Start Volume program, but they do not boot. If I press and hold the Alt key while booting, only the internal drives and the USB drives appear as options. What can I do in order to boot from FireWire drives as I always could in the past?

I'd first recommend doing a SMC reset and if that doesn't work refer to:
http://reviews.cnet.com/8301-13727_7-10333969-263.html
and
http://www.thexlab.com/faqs/firewiretroubleshooting.html
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
Roger

Can't boot from Ubuntu partition after upgrading to Yosemite

When i go to Disk Utility the Ubuntu partition appears as it always have, i had installed since Mavericks refind to boot from any partition. Now refind doesn't work and the alt/option key doesn't work either. Does anyone know a way to fix this?

A extensive report already written is in the Ubuntu stacks as
Dual boot Linux and Yosemite
Basically you need to follow http://www.rodsbooks.com/refind/yosemite.html
wherein it explains that Yosemite is using a new LVM bootup from within the Recovery Partitions 10.10.
This messes up REFIT/REFIND tools which have previously installed Partition 1.S
See my current Table below , wherein << are my comments
Current GPT partition table:
#      Start LBA      End LBA Type
1             40       409639 EFI System (FAT)    << old preferred site for REFIT/REFIND tools
2         409640    154061023 Mac OS X HFS+ << main Mac partition
3      154061024    155330559 Mac OS X Boot << Recovery 10.10 , installed by Yosemite update, used to start MAC boot. BUT is not shown by Disk Utility, to prevent its naive deletion which would kill the MAC boot.
4      155330560    156598271 Mac OS X HFS+ << old Recovery 10.9, simply retained
5      157869786    228772129 Unknown << My Ubuntu partition
6      228772130    236765969 Linux Swap << which was shortened by 200 MB to make room for 7)
7      236765970    236974814 Mac OS X HFS+ << installation site of REFIND. Though 4) could have been used, there is a possibility that Apple might have future plans for this small 4) partition.
With 7) created (see detail below), my REFIND install command under MAC, within Downloads/refind-bin-0.8.3/ was:
sudo ./install.sh --alldrivers --ownhfs /dev/disk0s7
There was still required the edit if refind.conf.sample specified in Yosemite.html, which I named refind.conf.edit1
This was copied with:
sudo cp refind.conf.edit1 /Volumes/macefi/System/Library/CoreServices/refind.conf
macefi is my name for the MAC /dev/disk0s7 mount point, equivalent to /dev/sda7 under Linux
CAREFULLY do read Yosemite.html, as the instructions here are too terse by themselves!!!!
There are 2 routes to boot Ubuntu, and then creat 7) with GPARTED
a) If you can access the GRUB shell under an old REFIT/REFIND installation, partitions will be shown by:
grub> ls
Presence of a Linux file system can be confirmed by a command like:
grub> ls (hd0,gpt5)/
Output of
grub > ls (hd0,gpt5)/boot/grub/
should include a grub.cfg file. Then you can boot as usual with
grub > configfile (hd0,gpt5)/boot/grub/grub.cfg
After boot up, start GPARTED
b) Alternatively boot with the Ubuntu install disk, and choose the Demo option
Open a text console, and get admin proviledge with:
$ sudo su
# gparted
Using GPARTED, unmount if necessary any terminal SWAP partition, such as my 6) above
Then shrink the SWAP partition end by a trivial 200 MB,
Create a HFS+ partition in like my 7) for a coming REFIND installation
Note, that a file /etc/fstab contains a SWAP partition specification, which should be edited for automated SWAP start.
# sudo blkid /dev/sda7
will report the SWAP space specs LONG uuid code. This can be copied into memory by dragging the mouse over the uuid
Then SHIFT-CONTROL-C will copy it into memory.   Start an edit with:
$ sudo nano /etc/fstab
delete the old swap uuid, and paste in the replacement with
SHIFT-CONTROl-V
and swap should mount upon reboot, or with:
$ sudo swapon -a
Check with:
$ free
which should report none-zero swap space.

Windows partition wont' boot from internal secondary HDD? No bootable device error

Here is my scenario: I previously had a 500GB bootcamped HDD in my 2012 macbook pro. The boot camp partition was running windows 7 and the mac partition was running 10.9. I replaced my original HDD with a 250GB SSD, took out my optical drive, and replaced that (op drive) with my original HDD. When i boot from the main drive, the SSD, it successfully recognizes the HDD with the 2 different partitions on it. But when I try to boot into my windows partition(on the HDD) by holding option at startup and selecting the windows partition, I keep getting a black screen "No bootable device. Insert boot disk and hit any key". I tried installing rEFIt, but still no luck. Here is the output from partition inspector:
* Report for internal hard disk *
Current GPT partition table: # Start LBA End LBA Type 1 40 409639 EFI System (FAT) 2 409640 487127591 Mac OS X HFS+ 3 487127592 488397127 Mac OS X Boot
Current MBR partition table: # A Start LBA End LBA Type 1 1 488397167 ee EFI Protective
MBR contents: Boot Code: None
Partition at LBA 40: Boot Code: None (Non-system disk message) File System: FAT32 Listed in GPT as partition 1, type EFI System (FAT)
Partition at LBA 409640: Boot Code: None File System: HFS Extended (HFS+) Listed in GPT as partition 2, type Mac OS X HFS+
Partition at LBA 487127592: Boot Code: None File System: HFS Extended (HFS+) Listed in GPT as partition 3, type Mac OS X Boot
Ive seen similar post, but none specific to my scenario. Any input would be greatly appreciated. I am trying to preserve the contents of my original HDD as it contains important school files I will be needing.

Please download Gdisk from http://sourceforge.net/projects/gptfdisk/ . You do not have a valid MBR on disk1 so Windows will not boot, even though you can see the volume in OS X Finder on the HDD.
Use Gdisk to recreate a Hybrid MBR which includes GPT#4.
Here is an example. Please notice the spaces between 2,3 and 4.
sudo gdisk /dev/disk0
GPT fdisk (gdisk) version 0.8.10
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Partition table scan:
MBR: hybrid
BSD: not present
APM: not present
GPT: present
Found valid GPT with hybrid MBR; using GPT.
Command (? for help): p
Disk /dev/disk0: 490234752 sectors, 233.8 GiB
Logical sector size: 512 bytes
Disk identifier (GUID): 59BDFEEB-1EB4-4529-94FE-3CBC2C3CD513
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 490234718
Partitions will be aligned on 8-sector boundaries
Total free space is 2604 sectors (1.3 MiB)
Number Start (sector)    End (sector) Size       Code Name
   1              40          409639   200.0 MiB   EF00 EF
   2          409640       401060383   191.0 GiB   AF05 Macintosh HD
   3       401060384       402329919   619.9 MiB   AB00 Re
   4       402331648       490233848   41.9 GiB    0700 Microsoft basic data
Command (? for help): r
Recovery/transformation command (? for help): h
WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,
just hit the Enter key at the below prompt and your MBR partition table will
be untouched.
Type from one to three GPT partition numbers, separated by spaces, to be
added to the hybrid MBR, in sequence: 2 3 4
Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): y
Creating entry for GPT partition #2 (MBR partition #2)
Enter an MBR hex code (default AF): AF
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #3 (MBR partition #3)
Enter an MBR hex code (default AB): AB
Set the bootable flag? (Y/N): n
Creating entry for GPT partition #4 (MBR partition #4)
Enter an MBR hex code (default 07): 07
Set the bootable flag? (Y/N): y
Recovery/transformation command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
PARTITIONS!!
Do you want to proceed? (Y/N): y
OK; writing new GUID partition table (GPT) to /dev/disk0.
Warning: Devices opened with shared lock will not have their
partition table automatically reloaded!
Warning: The kernel may continue to use old or deleted partitions.
You should reboot or remove the drive.
The operation has completed successfully.
Now Reboot and verify the output of fdisk again.

Boot from REFS volumes

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