df returning wrong disk size

delta7 · 08-18-2004, 07:10 PM

My old Toshiba Satellite only has a 4.3 gig hard drive, with a 329mb swap partition and a 3.9 gig root partition

Everything works great, but I have one problem.

when I run df -h it reports that /dev/hda1 is only 2.5 gigs in size: with 1.8 used and 450megs available

cfdisk reports the correct disk size of 3997 for / and 329 for swap.

The / is ext3 btw

Any help is greatly appreciated

slyman · 08-18-2004, 09:51 PM

what does:

Code:

# fdisk -l

return?

delta7 · 08-18-2004, 11:44 PM

Device Boot Start End Blocks Id System
/dev/hda1 * 1 486 3903763+ 83 Linux
/dev/hda2 487 526 321300 82 Linux swap

slyman · 08-19-2004, 12:18 AM

Sorry, I missed the cfdisk bit in your first post.

I imagine the "missing" space is the journal.

Unfortunately I don't know much about Ext3 (I use ReiserFS), so can't help more than that. The man page/documentation for tune2fs may help you out.

jschiwal · 08-20-2004, 04:10 PM

The ext2 and ext3 file systems reserve some of the space for the root user.
This way, if a drive if full, the root user is able to still work and fix the problem. Also, bad blocks are reserved, and as stated already the journal takes up space.
The tune2fs program can be used to change the amount of reserved block space. dumpe2fs will display information about the filesystem.