http://bugzilla.suse.com/show_bug.cgi?id=1165047 http://bugzilla.suse.com/show_bug.cgi?id=1165047#c5 --- Comment #5 from Ruediger Oertel <ro@suse.com> --- actually the "no such file" seems to come from the fact that the "cdrom" module is not autoloaded any more. if you do a "modprobe cdrom", then you can write the value, at least on SLE-15-SP1 (4.12.14-197.34-default) and a halfway current TW install (5.4.7-1-default) cirrus1-opensuse:~ # modprobe cdrom cirrus1-opensuse:~ # cat /proc/sys/dev/cdrom/autoclose 0 cirrus1-opensuse:~ # echo 1 > /proc/sys/dev/cdrom/autoclose cirrus1-opensuse:~ # cat /proc/sys/dev/cdrom/autoclose 1 cirrus1-opensuse:~ # echo 0 > /proc/sys/dev/cdrom/autoclose cirrus1-opensuse:~ # cat /proc/sys/dev/cdrom/autoclose 0 now the question is: is the value != 0 on the reporter's machine and if so .. then why ? -- You are receiving this mail because: You are on the CC list for the bug.