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when I try to write with k3b
/usr/bin/mkisofs: No such file or directory. Cannot open '/dev/fd/3'. Cannot open SCSI driver.
/usr/bin/mkisofs: No such file or directory. Unable to open previous session image '/dev/fd/3'.
:-( write failed: Input/output error

when I look /dev/fd/3 :
MegaTuX nono # ls -la /dev/fd/
total 4
dr-x------ 2 root root  0 d�c 17 22:28 .
dr-xr-xr-x 4 root root  0 d�c 17 22:28 ..
lrwx------ 1 root root 64 d�c 17 22:28 0 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 1 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 2 -> /dev/pts/0
lr-x------ 1 root root 64 d�c 17 22:28 3 -> /proc/9291/fd
MegaTuX nono # ls -la /dev/fd/
total 4
dr-x------ 2 root root  0 d�c 17 22:28 .
dr-xr-xr-x 4 root root  0 d�c 17 22:28 ..
lrwx------ 1 root root 64 d�c 17 22:28 0 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 1 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 2 -> /dev/pts/0
lr-x------ 1 root root 64 d�c 17 22:28 3 -> /proc/9292/fd
MegaTuX nono # ls -la /dev/fd/
total 4
dr-x------ 2 root root  0 d�c 17 22:28 .
dr-xr-xr-x 4 root root  0 d�c 17 22:28 ..
lrwx------ 1 root root 64 d�c 17 22:28 0 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 1 -> /dev/pts/0
lrwx------ 1 root root 64 d�c 17 22:28 2 -> /dev/pts/0
lr-x------ 1 root root 64 d�c 17 22:28 3 -> /proc/9293/fd
MegaTuX nono # ls -la /dev/fd/3
ls: ne peut acc�der /dev/fd/3: Aucun fichier ou r�pertoire de ce type