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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for January 5th, 2016

Handy new tool: GitHub Contributions Archive based on the GitHub Archive providing your github history

Posted by jpluimers on 2016/01/05

The GitHub Contributions Archive is based on the GitHub Archive (see below) and provides insight in anyones contributions. I discovered through a recent post by Ilya Grigorik:

Handy new tool (built on top of dataset!) that aggregates all of your GitHub activity: I’ve contributed to… – Ilya Grigorik – Google+

The GitHub Archive is amazing as it provides way more history than Github does by itself:

GitHub Archive is a project to record the public GitHub timeline, archive it, and make it easily accessible for further analysis.

Researching that data can provide tons of information, for instance about behaviour. It is also available through Google BigQuery so you can write your own queries for it.

The GitHub Contributions Archive – built by Liam Bowen – provides one (very usable) kind of insight: contributions, but there is much much more as quite some research, visualizations and talks have shown.

Interesting stuff!


Posted in Development, DVCS - Distributed Version Control, git, GitHub, Power User, Software Development, Source Code Management | Leave a Comment »

finding and deleting Windows EFI partitions with wmic and diskpart

Posted by jpluimers on 2016/01/05

DiskMgmt.msc does not allow you to delete EFI partitions.

I tried with WMI first.

wmic has a nice assoc mode that allows you to find associated classes like the logical drive association to physical partitions.

But lets start simple: physical partitions and logical drives.

C:\temp>wmic partition get DeviceID, DiskIndex, Index, Type
DeviceID               DiskIndex  Index  Type
Disk #1, Partition #0  1          0      GPT: System
Disk #0, Partition #0  0          0      Installable File System

C:\temp>wmic logicaldisk get Caption, DriveType, FileSystem, ProviderName, VolumeName
Caption  DriveType  FileSystem  ProviderName  VolumeName
C:       3          NTFS
D:       5

These Associations:

They can be hard to use.

LogicalDisks are bound to a Partition, but a Partition does not need to have a Logical Disk.

I wanted the other way around: finding partitions not having a LogicalDisk association. But that does not seem to be possible with WMI at all.

Heck, detecting EFI partitions with WMI seems to be impossible.


Even though there needs to be a 15 second delay between DiskPart invocations:

you must allow at least 15 seconds between each script for a complete shutdown of the previous execution before running the DiskPart command again in successive scripts

it seems to be the only way to go.

But it is hard, as there seems to be no way to convert from volume (which lists the EFI partition as ESP), to disk+partition.

So a way to automate what How to delete a protected EFI disk partition with Windows 7 or 8 | WinAbility Software describes seems impossible.

Any thoughts on that?

This is what I have done so far

  1. diskpart
  2. list volume
    1. now note the volume that has ESP
  3. list disk
  4. for each disk
    1. select disk #
    2. list disk
      1. to confirm you selected the correct disk
    3. list partition
    4. select partiton #
    5. list partition
      1. to confirm you selected the correct partition
    6. list volume
      1. to confirm the partition indeeds corresponds to the EFI volume
    7. delete partition override
    8. list volume
    9. list partition
    10. for each partition coming after the EFI partition
      1. select partition #
      2. list partition
        1. to confirm
      3. delete partition
      4. list partition
        1. to confirm

Now you can create a new partition on the disk.



Posted in Batch-Files, Development, Power User, Scripting, Software Development, Windows | Leave a Comment »

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