[Gta04-owner] Antwort: Re: QtMoko reloaded

[Andreas Kemnade]

On Thu, 1 Mar 2018 18:48:30 +0100
"H. Nikolaus Schaller" <hns at goldelico.com> wrote:

> > 
> > Accessing "/dev/sdc<x>" is completely wrong and luckily I had no "/dev/sdc" that could be erased! The same is true for "/media/P<x>"!   
> 
> Well, it is impossible to perfectly prevent erasing the wrong device, because only the user can know what the SD card reader with an SD really is.
> So it is equally risky as calling fdisk directly.
> 
No,
if you call fdisk you see what disk you use.
Here Sven thought, makesd would access /dev/sdg
but did access /dev/sdc!

That is a different thing.
fdisk does not do any writes when it is called without a device name to
work on!
makesd does.

Sven's sudo construction is just equal to calling
makesd *without* DEV set!!!

In that case makesd should not take a predefined device.

Maybe makesd also should display a list what it wants to do
asking for final confirmation

The best thing would be to call makesd from NAND with a graphical
interface.

> There is at least one protection: you can't overwrite /dev/sda.
> 
> What you could do is to just sudo chmod o+rw /dev/your-sd-reader
> but I am not sure what happens with newly created partitions.
> 
No, that would not work, because you want to mount the device and
create device nodes on it, which would require root privileges again.

Regards,
Andreas
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