Hello, I have a server with an 17tb scsi-storage. In past, the storage has a "jfs"-filesystem. Now i want to create a "ext4"-filesystem. I have update the e2fsprogs from 1.41 to 1.42 (16tb limit >1.41). Now I have an 17tb-storage as /dev/sda1 with ext4. I can mount this device as /home/ (/etc/fstab "/dev/sda1 /home/ ext4 defaults 1 2". Now I start a e2fschk /dev/sda1 (umounted). No error-messages are in the screen. If I now reboot the server, the server does not started: <---// Checking filesystems /dev/md2: clean, ..... /dev/md0: clean, ..... /dev/sda1 is in use. e2fsck: Cannot continue, aborting. *** An error occurred during the file system check. *** Dropping you to a shell; the system will reboot *** when you leave the shell. Give root password for maintenance (or type Control-D to continue): //---> I think thats can be a problem with the e2fsprogs 1.42, now i reinstall the server with the default e2fsprogs 1.41 from CentOS 6.4 and create only a 16tb /dev/sda1 partition with ext4. But if i start a "e2fschk /dev/sda1" and reboot the server, i have the same message in the boot-screen and the server does not boot. Why the system thinks that the device still be in use? How can i change this? Thanks Sebastian