Seeing through the wiki page of busybox, I see it supports
df command to find disk usage.
You can try the below command.
df -h - Show free space on mounted file systems.
From the man page of busybox, they have provided examples of how to use the
However, as @nwildner pointed out, the df will show storage on a mounted filesystem and not the schemes related to partitions. To find it out, you can check the below file.
As you had mentioned
fdisk -l is not working the above file might contain the partition information.
fdisk -l produced the below output in my system.
Device Boot Start End Blocks Id System
/dev/sda1 * 1 13 104391 83 Linux
/dev/sda2 14 9726 78019672+ 8e Linux LVM
Now, I can get the partition information if I use cat
/proc/partitions. The output is,
major minor #blocks name
8 0 78125000 sda
8 1 104391 sda1
8 2 78019672 sda2
253 0 78019156 dm-0
253 1 72581120 dm-1
253 2 5406720 dm-2
The major number is 8 that indicates it to be a disk device. The minor ones are your partitions on the same device. 0 is the entire disk, 1 is the primary, 2 is extended and 5 is logical partition. The rest is of course block size and name of disk/partition.
Not sure if an intelligent suggestion, but did you try
sudo fdisk -l to see if it is working?
You can also run
$ df -T. This is another command that does not require super user privileges to execute. However, this will report for every mount point.
Another command that can come handy is
# file -sL /dev/sdXY. This has one downside in that it does not work with the full block device. Requires the exact device to be passed. The output is quite neat though:
How to determine the filesystem of an unmounted device?