I want to partition a USB but have problems using discs or gparted.

For example I can only make a first partition 20GB of a 2 Terabyte stick if I try to make it larger the second partition formatted appears OK at first then turns black saying unknown format.I

Then if it is a 1 Terabyte stick the largest first partition is only 16GB.

Any ideas why this happens?

I have partitioned easily up to 128GB sticks and no problem.

If I partition a 128gb stick it will partition half and half like I expect it too.

Is it because I am using over 128GB sticks.

try changing the partition table to gpt on it first.

I just created 4 partitions on a 32GB stick w/ msdos partition table, using gparted without error, so I do not know what you're doing to make it not do that.

A 2-Terabyte 'stick'? I take it you mean a flash drive, yes?

Sounds to me like you may have fallen victim to some of these ultra-high capacity 'counterfeits' that are floating around out there. They're advertised as 1 or 2 TB, but in reality there may only be a few GB-worth of flash memory in there at best.....the controller chip has been 'tampered with' to make it report much more than is really there.

This could explain your inability to format said drive.....


Mike.

They do appear to work otherwise even the memory cards 64GB to 1 Terabyte do the same.

I have sold many of these and have had no complaint on the capacity. I have spent ages to fill them up and they work. And a surface scan of the sticks does show correctly and with no errors.

Kingston does make a 1 and 2TB flash drive but they are a bit expensive ~$587 US and ~$1270 US (from Newegg) respectively. I had read somewhere that SanDisk is also working on a large capacity drive too but do not think they are for sale yet.

I would expect them to be recognized just like any other USB drive but as suggested it could be a fake.

https://www.newegg.com/Product/Produ...9SIAEYE77Z1500

I suppose there are others around...

I am backing up my Terabyte drive on the 2 Terabyte USB it is going well but will take ages. It is a USB3.0 but forgot to put it into the USB 3.0 port.

But is it a flash drive as pictured above or just an external USB drive.

Yes it is a usb 3.O drive

I cannot see a picture above can I send a picture of it?

You should be able to upload a picture.

Sounds to me that you may be using the wrong designation for your partitions, 20GB is the maximum size for a dos formatted drive, if I remember.

Make your partitions for use with Linux EXT file systems, or perhaps NTFS, & you will likely be able to create larger partitions.

How

I have done all that it makes no difference. Tried NTFS Ext 4

n/m

If you had previously used the drive to create a bootable image from an ISO file then its apparent size will be that of the image file. By deleting and recreating the partition table you should see its actual size.

Cannot see that as everything I do it says 2.1 Terabyte. I am loading many iso's to the 2nd partition and it has been going on for two hours now. I reckon it will take me a day to fill it up with many copies of the iso