Repartitioning after installing Yosemite on a second part ion

[Dorv]

So, I installed the DP1 on a second partition of my rMBP's 256G SSD. Upgraded to DP2 when it was available.

I'm headed out to SDCC in a couple of weeks, and was planning on repartitioning the drive so I would have enough room to do the iMovie work required of the video I'll take while there.

I went into Disk Utility under my Mavericks install, but the ability to change the partition scheme or delete any of the partition is greyed out. Same with the Disk Utility available in the recovery partition.

Anyone see what I'm missing something obvious??

 

[tywebb13]

The yosemite installer probably made logical volume groups.

If the yosemite installer creates logical volume groups, you can run this in terminal to get your partitions back to normal. This will also make a recovery partition visible when you boot up when holding the option key down.

diskutil cs list

and then

diskutil coreStorage revert lvUUID

where lvUUID is the last lvUUID reported by the previous Terminal command.


You may have to restart for everything to get back to normal after you have run these commands in Terminal.

 

[Sparky2012]

Stupid question I know (waiting until the public beta of Yosemite anyway) but would you type this terminal command into Mavericks (or current OS) or Yosemite?

 

[tywebb13]

It doesn't matter.

I did it twice, once on an mba which only has yosemite on it, and on another computer (a mbp) which is dual booting mountain lion and yosemite and ran the commands whilst booted up in mountain lion.

In both cases it fixed it.

It should also work on a computer dual booting mavericks and yosemite and again it won't matter which you are booted up in.

Anyway, one would hope it is fixed by the time the public beta is made available and so by then it shouldn't be an issue.

 

[Dorv]

It doesn't matter.

I did it twice, once on an mba which only has yosemite on it, and on another computer (a mbp) which is dual booting mountain lion and yosemite and ran the commands whilst booted up in mountain lion.

In both cases it fixed it.

It should also work on a computer dual booting mavericks and yosemite and again it won't matter which you are booted up in.

Anyway, one would hope it is fixed by the time the public beta is made available and so by then it shouldn't be an issue.

This did it. Thanks so much!!