I wanted to securely delete all files from my usb device, so I did:
# srm -d -r -v /media/usbdisk/.* /media/usbdisk/*
I discovered that it also deleted everything in /media
I know stupid of me to be root. However, my problem was to get my cdrom working again. So after a while, I "fixed" it. Then I discovered that Gnome no longer is able to view my cdrom. After experimenting, I discovered that the user valerij (myself) is unable to view it however:
$ groups
valerij dialout cdrom floppy audio video plugdev netdev powerdev
$ mount
/dev/hda on /media/cdrom0 type iso9660 (ro,noexec,nosuid,nodev,user=valerij)
$ umount /media/cdrom0
$ mount /media/cdrom0
mount mount: block device /dev/hda is write-protected, mounting read-only
$ mount
/dev/hda on /media/cdrom0 type iso9660 (ro,noexec,nosuid,nodev,user=valerij)
$ cd /cdrom
bash: cd: /cdrom: Permission denied
$ cd /media/cdrom
bash: cd: /media/cdrom: Permission denied
$ cd /media/cdrom0
bash: cd: /media/cdrom0: Permission denied
# cd /media/cdrom
# ls
??? Alexi Laiho - Special Guitar Lecture.avi Ozzy Osbourne
???? ?????????? - ??????.avi Queen - The Show Must Go On.mpg
?????? LOTR Scorpions
??????? Metallica Shitparad___gruppa_Kuvalda.avi
???????? ?????? M+M_Video.wmv Sting - Shape of my heart.mpg
???????? ????????? ?????? ?????? - ??????? ?????.mpg Within Temptation
????????? 13.avi ?????? ''??????''.mpg
???? (?????????-?????? 5-0).avi Nightwish
# ls /media/ -h -l -a
total 18K
drwx------ 5 root root 4.0K 2007-12-24 23:40 .
drwxr-xr-x 22 root root 4.0K 2007-12-24 23:40 ..
lrwxrwxrwx 1 root root 7 2007-12-24 23:40 cdrom -> cdrom0/
dr-xr-xr-x 1 root root 2.0K 2007-05-29 22:42 cdrom0
drwxr-xr-x 2 root root 4.0K 2007-12-24 23:33 Debian 4.0 r0 i386 Bin-1
---xr-s--T 1 root root 0 2007-12-24 22:00 .hal-mtab-lock
drwxr-xr-x 2 root root 4.0K 2007-12-24 00:55 usbdisk
# ls / -h -l -a
total 104K
drwxr-xr-x 22 root root 4.0K 2007-12-24 23:40 .
drwxr-xr-x 22 root root 4.0K 2007-12-24 23:40 ..
drwxr-xr-x 2 root root 4.0K 2007-12-20 01:47 bin
drwxr-xr-x 3 root root 4.0K 2007-12-20 01:49 boot
lrwxrwxrwx 1 root root 12 2007-12-24 23:40 cdrom -> /media/cdrom
drwxr-xr-x 15 root root 4.3K 2007-12-24 23:44 dev
drwxr-xr-x 125 root root 12K 2007-12-24 23:57 etc
drwxr-xr-x 3 root root 4.0K 2007-12-20 01:35 home
drwxr-xr-x 2 root root 4.0K 2007-12-20 01:23 initrd
lrwxrwxrwx 1 root root 28 2007-12-20 01:49 initrd.img -> boot/initrd.img-2.6.18-5-686
lrwxrwxrwx 1 root root 28 2007-12-20 01:24 initrd.img.old -> boot/initrd.img- 2.6.18-4-686
drwxr-xr-x 15 root root 12K 2007-12-20 01:47 lib
drwx------ 2 root root 16K 2007-12-20 01:21 lost+found
drwx------ 5 root root 4.0K 2007-12-24 23:40 media
drwxr-xr-x 2 root root 4.0K 2006-10-28 17:06 mnt
drwxr-xr-x 3 root root 4.0K 2007-12-20 22:12 opt
dr-xr-xr-x 128 root root 0 2007-12-24 23:44 proc
drwxr-xr-x 13 root root 4.0K 2007-12-24 23:50 root
drwxr-xr-x 2 root root 4.0K 2007-12-20 01:47 sbin
drwxr-xr-x 2 root root 4.0K 2007-03-08 00:56 selinux
drwxr-xr-x 2 root root 4.0K 2007-12-20 01:23 srv
drwxr-xr-x 11 root root 0 2007-12-24 23:44 sys
drwxrwxrwt 12 root root 4.0K 2007-12-24 23:53 tmp
drwxr-xr-x 12 root root 4.0K 2007-12-22 01:09 usr
drwxr-xr-x 15 root root 4.0K 2007-12-24 01:57 var
lrwxrwxrwx 1 root root 25 2007-12-20 01:49 vmlinuz -> boot/vmlinuz-2.6.18-5-686
lrwxrwxrwx 1 root root 25 2007-12-20 01:24 vmlinuz.old -> boot/vmlinuz-2.6.18-4-686
# cat /etc/fstab
# /etc/fstab: static file system information.
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc defaults 0 0
/dev/sda3 / ext3 defaults,errors=remount-ro 0 1
/dev/sda4 none swap sw 0 0
/dev/hda /media/cdrom0 udf,iso9660 user,noauto 0 0
Linear Mode
