[root@hvrhub ~]# mkfs.ext3 /dev/sda3 mke2fs 1.39 (29-May⑵006) Could not stat /dev/sda3 --- No such file or directory The device apparently does not exist; did you specify it correctly?

[root@hvrhub ~]# partprobe Warning: Unable to open /dev/sr0 read-write (Read-only file system). /dev/sr0 has been opened read-only. [root@hvrhub ~]# mkfs.ext3 /dev/sda3 mke2fs 1.39 (29-May⑵006) Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 5373952 inodes, 10733428 blocks 536671 blocks (5.00%) reserved for the super user First data block=0 Maximum filesystem blocks=4294967296 328 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624 Writing inode tables: done Creating journal (32768 blocks): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 27 mounts or 180 days, whichever comes first. Use tune2fs -c or -i to override.