Getting error "mkfs.ext2: No such device or address" when using mkfs command

[Paul Mancillas]

I just created a /dev/sda9 partition on my Red Hat 7.2 system. Then I tried using "mkfs" to create the file system and I saw this:

# mkfs -t ext2 /dev/sda9
mke2fs 1.23, 15-Aug-2001 for EXT2 FS 0.5b, 95/08/09
mkfs.ext2: No such device or address while trying to determine filesystem size

Can anyone tell me how to fix this?

Thanks,

Paul Mancillas

[I_M · Accepted solution]

Hi

I would like to tell you what did you do after "fdisk" command.

Because fdisk re-write the disk's MBR when you quit with "w" (write & quit).
But if you try to mkfs just after that, you will be fail like this time.
Because your sda (system disk) is mounted by OS, so that system could not reset the HD to enable new partition information.

So what you need to do after create new partition on system disk is, reboot.
If it is your data disk and all partitions are not mounted, fdisk try to restart the disk. So you don't need to reboot the system.

Good luck