cdrom mp3's files executable why

Boow · 06-10-2004, 12:27 PM

im running slackware current my mp3 cdrom mounts all mp3's executable like this

-r-xr-xr-x 1 root root 3441528 1998-04-03 12:23 fadetoblack.mp3*
-r-xr-xr-x 1 root root 4240323 1999-10-30 11:49 falling_away_from_me.mp3*
-r-xr-xr-x 1 root root 5356765 2000-09-27 23:16 limp\ bizkit\ -\ my\ generation.mp3*

my fstab

/dev/hda7 swap swap defaults 0 0
/dev/hda6 / ext3 defaults 1 1
/dev/cdrom /mnt/cdrom iso9660 noauto,user,ro 0 0
/dev/cdrom1 /mnt/cdrom1 iso9660 noauto,user,ro 0 0
/dev/fd0 /mnt/floppy auto noauto,owner 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
proc /proc proc defaults 0 0
/dev/hda1 /mnt/hda1 ntfs ro,noauto,user,uid=1000,gid=100,umask=0227 0 0
/dev/hdb1 /mnt/hdb1 ntfs ro,noauto,user,uid=1000,gid=100,umask=0227 0 0
/dev/hdb1 /mnt/hdb5 ntfs ro,noauto,user,uid=1000,gid=100,umask=0227 0 0

do i need the noexec option? I want to be able to run progs from cdrom if need be

ProtoformX · 06-10-2004, 12:53 PM

Then leave the permission rights alone... even though it says you can exicute an mp3.. the mp3 contains no header or any actul exicutible data.. so it's perfectly safe... on the other hand try copying 1 mp3 to your home folder and see if it has the same permissions if it doesn't then something is wrong with your install.. I would suggust a reinstall because who knows what else is also exicutible.

Boow · 06-10-2004, 02:49 PM

thanks I see that its the same on fedora.

keefaz · 06-10-2004, 04:29 PM

Quote:

I would suggust a reinstall because who knows what else is also exicutible.

Don't be expeditive, it is normal behaviour in some case, for example file permission for photos from my numeric canon are all 755, and 755 too for files from macintosh data cds, I won't reinstall slackware for that !

Cerbere · 06-10-2004, 05:21 PM

Depending on how you burned the CD (specifically how you created the ISO), that's perfectly normal. Check out the following from the mkisofs man page:

Code:

       -r     This is like the -R option, but file ownership  and
              modes  are  set to more useful values.  The uid and
              gid are set to zero, because they are usually  only
              useful  on  the  author's system, and not useful to
              the client.  All the file read bits are  set  true,
              so that files and directories are globally readable
              on the client.  If any execute bit  is  set  for  a
              file, set all of the execute bits, so that executa-
              bles are globally executable on the client.  If any
              search  bit  is set for a directory, set all of the
              search  bits,  so  that  directories  are  globally
              searchable  on  the  client.   All  write  bits are
              cleared, because the CD-Rom will be  mounted  read-
              only  in any case.  If any of the special mode bits
              are set, clear them, because  file  locks  are  not
              useful  on a read-only file system, and set-id bits
              are not desirable for uid 0 or gid 0.  When used on
              Win32, the execute bit is set on all files. This is
              a result of the lack of file permissions  on  Win32
              and  the  Cygwin  POSIX  emulation layer.  See also
              -uid -gid, -dir-mode, -file-mode and -new-dir-mode.

The relevant part here is the text which I emphasized.

Since CDs are usually intended to be platform independent, they have to be kept simple enough for windows systems to understand them.

Enjoy!
--- Cerbere

Boow · 06-11-2004, 10:24 AM

I was wodering because i have rox-filer installed in fluxbox but i found the option that ignore's the executable bit for known file types. Im a noob lol.

keefaz · 06-11-2004, 12:52 PM

You can always do TAB + ! to open little field in the bottom of the window and play with command instead of clickin', but for preview thundbail...it is out