Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #206273

Re: User rw Permissions on New Hard Drive

Show all headers | View raw

Le 11/03/2019 à 19:46, David Wright a écrit :
> On Sat 09 Mar 2019 at 20:31:36 (+0100), Pascal Hambourg wrote:
>>
>> I did not mean using UDF on opticals discs but on regular drives, just
>> as any other general purpose filesystem. I once considered using it
>> for file sharing between Windows and Linux instead of the usual FAT
>> and NTFS. Indeed UDF is natively supported as a read-write filesystem
>> by both Linux and Windows, natively supports POSIX permissions and
>> does not suffer from FAT file size limitations. And I was surprised to
>> discover that the label set by Windows was not the label read by Linux
>> and vice versa.
> 
> Without reading a review of how it performs, I'd worry about using it
> as a general purpose filesystem. It sounds as if it's designed mainly
> for handling specific issues raised by particular devices.

No, the "U" stands for "Universal" and its is designed for a broad range 
of media, including hard disks. It just has special features for optical 
media, but is not restricted to them.

The format.exe utility in Windows has an option to format a drive or 
partition with UDF, so this is really not an oddity.

> I might be
> happier if it were integrated into the kernel rather than just a
> user application.

What do you mean ? The UDF driver is integrated in the kernel (unlike 
NTFS which requires a FUSE driver to enable full-featured writes). Not 
to be confused with CD/DVD authoring software which have a different 
purpose.

>> You wrote that the filesystem label was independent of any OS.
> 
> No, I wrote "A filesystem that has a label, has that label regardless
> of any OS." In other words, if you hold a filesystem (on a device) in
> your hands, the label is still present, as a property of the
> filesystem, written there as a sequence of characters.
> 
> This is in contrast to the string /dev/disk/by-label/LABEL which is
> effectively an artefact of the operating system, dependant on the
> device being connected to a particular type of OS, and not written
> anywhere on the device itself.

I understand what you mean, but my point is that it does not make any 
difference in practice. Whatever intrinsic metadata is stored on the 
device is irrelevant ; what actually matters is what metadata the 
operating system uses as a label. If different operating systems use 
different metadata as the label, then you cannot consider that the label 
is independent of any operating systems.

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

User rw Permissions on New Hard Drive "Stephen P. Molnar" <s.molnar@sbcglobal.net> - 2019-02-28 21:50 +0100
  Re: User rw Permissions on New Hard Drive Dekks Herton <dekkzz78@gmail.com> - 2019-03-01 02:00 +0100
  Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-01 03:30 +0100
    Re: User rw Permissions on New Hard Drive Felix Miata <mrmazda@earthlink.net> - 2019-03-01 04:50 +0100
      Re: User rw Permissions on New Hard Drive Cindy-Sue Causey <butterflybytes@gmail.com> - 2019-03-01 07:40 +0100
        Re: string "defaults" in fstab options columns (was: User rw  Permissions on New Hard Drive) Felix Miata <mrmazda@earthlink.net> - 2019-03-01 09:00 +0100
          Re: string "defaults" in fstab options columns (was: User rw  Permissions on New Hard Drive) David Wright <deblis@lionunicorn.co.uk> - 2019-03-01 18:00 +0100
            Re: string "defaults" in fstab options columns Felix Miata <mrmazda@earthlink.net> - 2019-03-01 19:30 +0100
        Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-01 18:00 +0100
          Re: User rw Permissions on New Hard Drive Greg Wooledge <wooledg@eeg.ccf.org> - 2019-03-01 18:10 +0100
            Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-01 18:40 +0100
    Re: User rw Permissions on New Hard Drive Dekks Herton <dekkzz78@gmail.com> - 2019-03-01 08:40 +0100
      Re: User rw Permissions on New Hard Drive Michael Stone <mstone@debian.org> - 2019-03-01 15:40 +0100
        Re: User rw Permissions on New Hard Drive Stefan Monnier <monnier@iro.umontreal.ca> - 2019-03-01 18:50 +0100
          Re: User rw Permissions on New Hard Drive Reco <recoverym4n@enotuniq.net> - 2019-03-01 19:10 +0100
      Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-01 18:20 +0100
    Re: User rw Permissions on New Hard Drive "Stephen P. Molnar" <s.molnar@sbcglobal.net> - 2019-03-05 15:20 +0100
      Re: User rw Permissions on New Hard Drive Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-03-05 20:20 +0100
      Re: User rw Permissions on New Hard Drive "Stephen P. Molnar" <s.molnar@sbcglobal.net> - 2019-03-06 23:50 +0100
  Re: User rw Permissions on New Hard Drive Cousin Stanley <cousinstanley@gmail.com> - 2019-03-07 15:40 +0100
    Re: User rw Permissions on New Hard Drive Michael Stone <mstone@debian.org> - 2019-03-07 16:10 +0100
      Re: User rw Permissions on New Hard Drive Cousin Stanley <cousinstanley@gmail.com> - 2019-03-07 18:20 +0100
        Re: User rw Permissions on New Hard Drive Michael Stone <mstone@debian.org> - 2019-03-07 19:10 +0100
        Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-07 20:30 +0100
          Re: User rw Permissions on New Hard Drive Cousin Stanley <cousinstanley@gmail.com> - 2019-03-07 22:10 +0100
            Re: User rw Permissions on New Hard Drive Michael Stone <mstone@debian.org> - 2019-03-07 22:30 +0100
              Re: User rw Permissions on New Hard Drive Cousin Stanley <cousinstanley@gmail.com> - 2019-03-08 01:30 +0100
            Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-08 03:20 +0100
              Re: User rw Permissions on New Hard Drive Cousin Stanley <cousinstanley@gmail.com> - 2019-03-08 07:10 +0100
          Re: User rw Permissions on New Hard Drive Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-03-07 23:20 +0100
            Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-08 04:20 +0100
              Re: User rw Permissions on New Hard Drive Greg Wooledge <wooledg@eeg.ccf.org> - 2019-03-08 14:30 +0100
                Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-09 05:30 +0100
              Re: User rw Permissions on New Hard Drive Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-03-09 20:40 +0100
                Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-11 19:50 +0100
                Re: User rw Permissions on New Hard Drive Pascal Hambourg <pascal@plouf.fr.eu.org> - 2019-03-16 10:50 +0100
                Re: User rw Permissions on New Hard Drive David Wright <deblis@lionunicorn.co.uk> - 2019-03-17 16:30 +0100
    Re: User rw Permissions on New Hard Drive Felix Miata <mrmazda@earthlink.net> - 2019-03-07 18:20 +0100

csiph-web