Hello. What can I do next to use R4 partition sdb Thanks Glenn - What I have done so far: # md /media/disk # ls -la /media/disk total 0 drwxr-xr-x 2 root users 48 Aug 18 16:05 . drwxr-xr-x 4 root root 96 Aug 19 18:21 .. mount command used. # strace mount /dev/sdb /media/disk # strace shows {last few lines} stat("/sbin/mount.reiser4", 0x7fff82b08700) = -1 ENOENT (No such file or directory) stat("/sbin/fs.d/mount.reiser4", 0x7fff82b08700) = -1 ENOENT (No such file or directory) stat("/sbin/fs/mount.reiser4", 0x7fff82b08700) = -1 ENOENT (No such file or directory) mount("/dev/sdb", "/media/disk", "reiser4", MS_MGC_VAL, NULL) = -1 ENOENT (No such file or directory) lstat("/media/disk", {st_mode=S_IFDIR|0755, st_size=48, ...}) = 0 stat("/media/disk", {st_mode=S_IFDIR|0755, st_size=48, ...}) = 0 stat("/dev/sdb", {st_mode=S_IFBLK|0660, st_rdev=makedev(8, 16), ...}) = 0 write(2, "mount: ", 7mount: ) = 7 write(2, "mount(2) failed", 15mount(2) failed) = 15 write(2, ": ", 2: ) = 2 write(2, "No such file or directory\n", 26No such file or directory ) = 26 close(1) = 0 close(2) = 0 exit_group(32) = ? +++ exited with 32 +++ # cat /proc/filesystems nodev sysfs nodev rootfs nodev ramfs nodev bdev nodev proc nodev cgroup nodev cpuset nodev tmpfs nodev devtmpfs nodev debugfs nodev securityfs nodev sockfs nodev pipefs nodev devpts ext3 ext2 ext4 nodev hugetlbfs nodev autofs nodev pstore nodev mqueue btrfs reiserfs reiser4 #dmesg shows atrer I plug in disk and run command #mount /dev/sdb /media/disk 13927.148926] usb 1-1: new high-speed USB device number 3 using ehci-pci [13927.285272] usb 1-1: New USB device found, idVendor=04fc, idProduct=0c25 [13927.285284] usb 1-1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [13927.285291] usb 1-1: Product: USB to Serial-ATA bridge [13927.285297] usb 1-1: Manufacturer: Sunplus Technology Inc. [13927.285302] usb 1-1: SerialNumber: ST32000542 5XW1ZMG4 [13927.306242] usb-storage 1-1:1.0: USB Mass Storage device detected [13927.306757] scsi4 : usb-storage 1-1:1.0 [13927.307043] usbcore: registered new interface driver usb-storage [13928.310186] scsi 4:0:0:0: Direct-Access ST320005 42AS PQ: 0 ANSI: 2 [13928.310793] sd 4:0:0:0: Attached scsi generic sg2 type 0 [13928.313184] sd 4:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [13928.317396] sd 4:0:0:0: [sdb] Write Protect is off [13928.317410] sd 4:0:0:0: [sdb] Mode Sense: 38 00 00 00 [13928.320044] sd 4:0:0:0: [sdb] No Caching mode page found [13928.320056] sd 4:0:0:0: [sdb] Assuming drive cache: write through [13928.386115] sdb: unknown partition table [13928.405823] sd 4:0:0:0: [sdb] Attached SCSI disk [14041.917702] Loading Reiser4. See www.namesys.com for a description of Reiser4. [14041.921930] reiser4: sdb: found disk format 4.0.0. [14152.798878] reiser4[mount(7623)]: traverse_tree (/home/abuild/rpmbuild/BUILD/kernel-reiser4-3.15.0/linux-3.15/fs/reiser4/search.c:725)[nikita-373]: WARNING: not found on internal node: level: 6, lock_level: 1, stop_level: 1 lock_mode: read, bias: exact [14152.798896] reiser4[mount(7623)]: key_warning (/home/abuild/rpmbuild/BUILD/kernel-reiser4-3.15.0/linux-3.15/fs/reiser4/plugin/file_plugin_common.c:512)[nikita-717]: WARNING: Error for inode 42 (-2) # uname -a Linux test.site 3.15.8-1-vanilla #1 SMP Tue Aug 5 04:15:41 UTC 2014 (258e3b0) x86_64 x86_64 x86_64 GNU/Linux -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html