Re: USB drive mounted Read-only; what to do ?
On Sun 21 Dec 2014 at 11:31:19 +0200, Andrei POPESCU wrote:
> On Sb, 20 dec 14, 19:50:51, Bob Proulx wrote:
> >
> > Good question. It feels like we have come full circle. That was the
> > way it was before the introduction of devfs and udev. It appears that
> > things now have returned to the way it was before udev. Which won't
> > bother the old-school Unix folks because we already lived through that
> > and already know how to deal with it. But why haven't the next
> > generation started complaining about it? If it works for them, then
> > how? The changelog says they are obsolete. But then what is the
> > replacement for them?
>
> If my understanding is correct, "normal" read/write permissions are
> handled by udisks and should work regardless of whether a user happened
> to be the first one set up (usually by debian-installer) or not.
I'm not too familiar with udisks but that is my understanding too.
> Whether it is a good idea to restrict writing to the raw device only to
> root-equivalent users is a different question.
It is. Is there an explanatory answer? Following upstream rules allows
the Debian patch to be removed, which implies it has some unstated
consequences.
> On one hand I don't think it's such a big burden to use su/do or similar
> for this type of operation, on the other hand it's slightly easier to
> pick the wrong device and destroy your data.
Someone without root access cannot dd, cp or cat a Debian ISO to a USB
stick. I rather liked the Wheezy ability to do this and to use fdisk
without worrying. One moment of inattentiveness or the wrong letter with
root access would ruin one's day.
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