How much left on usb stick?

gymnart · 09-05-2009, 08:31 AM

I can't remember where to find the command(s) to give me the following info:
The capacity of the usb thumb drive and how much space is left on it. Can the info be "human readable"? (in GB or MB rather than just bytes).
When I look at the properties in Konquerer, it just gives me the amount used, not its capacity and how much is left on it.

repo · 09-05-2009, 08:32 AM

in a terminal type

Code:

df -h

colucix · 09-05-2009, 08:32 AM

From the command line, you can try

Code:

df -h

and you will see information about all the available mounted partitions, your thumb drive included.

A KDE application which shows the same info is KDiskFree. On my OpenSuse 11.1 it resides in the K menu under Applications --> System --> File System --> Disk Usage. From the command line, just type kdf and press enter.

onebuck · 09-05-2009, 08:47 AM

Hi,

Just a few links to aid you in the future;

Linux Documentation Project
Rute Tutorial & Exposition
Linux Command Guide
Linux Newbie Admin Guide
LinuxSelfHelp
Getting Started with Linux

These links and others can be found at 'Slackware-Links' . More than just Slackware® links!

gymnart · 09-05-2009, 08:52 AM

Thanks for your replies.
@colucix: Your suggestion about using KDiskFree helped a lot. While it didn't give me any info about the usb stick, I did find another tool that did the job: KDirStat. (I'm using an older SuSE).
@repo: I did the command and it just gave me the hard drive info, and it did not include the usb stick. So, I tried it this way: df -h /dev/sda and it gave me the info. I needed

Thanks guys!

gymnart · 09-08-2009, 11:56 AM

Back to the df command:
One thing I noticed, after getting the info and when my 2 gig usb is taken out and the 8 gig is put in its place and the command is repeated, the info is the same -- as if it hasn't read what is on the stick. It should give me different information. Also, if I do the command as: df -h /media/usbdisk it tells me that it has 0 items on it. I've also just noticed that the info I was being given this whole time was for tmpfs and not the usb stick.

When I use df -h it just gives me this:

Code:

Filesystem            Size  Used Avail Use% Mounted on
/dev/hda2              74G   70G  3.8G  95% /
tmpfs                1013M     0 1013M   0% /dev/shm

As you can see, there is no mention of the usb disk.

j_jerry · 09-08-2009, 12:04 PM

Try this command 'fdisk -l'

The result you posted is, I think is just about your hard drive. Post what you've got when the 2g flashdisk was inserted

gymnart · 09-08-2009, 12:26 PM

This was with both of the usbsticks plugged in:

Code:

fdisk -l

Disk /dev/hda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1         128     1028128+  82  Linux swap / Solaris
/dev/hda2   *         129        9729    77120032+  83  Linux

Disk /dev/sdb: 2017 MB, 2017525248 bytes
64 heads, 63 sectors/track, 977 cylinders
Units = cylinders of 4032 * 512 = 2064384 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1               1         969     1953439+   6  FAT16

Disk /dev/sda: 8036 MB, 8036285952 bytes
255 heads, 63 sectors/track, 977 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1         976     7839698    b  W95 FAT32

I can't tell where it says how much is used up.

j_jerry · 09-08-2009, 12:45 PM

Did you try df -k ?

fdisk won't give memory usage details, just to make sure everything is working properly.

colucix · 09-08-2009, 03:00 PM

It looks like the two USB sticks are not mounted automatically. Maybe, being it an old Suse release it have not plug-and-play capability. To verify, please post the output of the command

Code:

mount

(without options) when the two sticks are inserted and the fdisk -l command gives the output shown above. What if you try to mount them manually?

ravedog · 09-08-2009, 03:27 PM

Quote:

Originally Posted by onebuck

Hi,

Just a few links to aid you in the future;

Linux Documentation Project
Rute Tutorial & Exposition
Linux Command Guide
Linux Newbie Admin Guide
LinuxSelfHelp
Getting Started with Linux

These links and others can be found at 'Slackware-Links' . More than just Slackware® links!

Good tips there bro, cheers!

gymnart · 09-09-2009, 02:07 PM

Here's the info on the "mount" command:

Code:

mount
/dev/hda2 on / type reiserfs (rw,acl,user_xattr)
proc on /proc type proc (rw)
sysfs on /sys type sysfs (rw)
tmpfs on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,mode=0620,gid=5)
usbfs on /proc/bus/usb type usbfs (rw)
none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)
/dev/fd0 on /media/floppy type subfs (rw,nosuid,nodev,noatime,fs=floppyfss,procuid)
/dev/sdb1 on /media/usbdisk type subfs (rw,nosuid,nodev,sync,fs=floppyfss,procuid,utf8=true)
/dev/sda1 on /media/usbdisk_1 type subfs (rw,nosuid,nodev,sync,fs=floppyfss,procuid,utf8=true)

and df -k gives the same readout as df -h.

When the usb's are plugged in, they show up right away in Konqueror as /media/usbdisk and /media/usbdisk_1.

colucix · 09-09-2009, 03:12 PM

Here is the mistery unraveled!

Code:

/dev/fd0 on /media/floppy type subfs (rw,nosuid,nodev,noatime,fs=floppyfss,procuid)
/dev/sdb1 on /media/usbdisk type subfs (rw,nosuid,nodev,sync,fs=floppyfss,procuid,utf8=true)
/dev/sda1 on /media/usbdisk_1 type subfs (rw,nosuid,nodev,sync,fs=floppyfss,procuid,utf8=true)

These three filesystems are mounted by Submount, a kernel module whose "purpose is to automatically mount and unmount cd, floppy, and other removable media drives while remaining entirely invisible to the user" (quoted by Submount project at Sourceforge). I've never seen submount in action, hence I can't tell you anything more about how it works and how you can configure its behaviour. However, you can check your /etc/fstab and if there are entries for /dev/sda1 and /dev/sdb1 you can change the type from subfs to vfat. Hope this helps.

Edit: just out of curiosity I downloaded the source code from Sourceforge and the README file inside the installation directory explains how to setup the subfs filesystem type. Indeed, it uses fstab entries.

gymnart · 09-09-2009, 03:32 PM

When I looked, I didn't see any entries for /dev/sda1 or sdb1. This is my fstab:

Code:

cat /etc/fstab
/dev/hda2            /                    reiserfs   acl,user_xattr        1 1
/dev/hda1            swap                 swap       defaults              0 0
proc                 /proc                proc       defaults              0 0
sysfs                /sys                 sysfs      noauto                0 0
usbfs                /proc/bus/usb        usbfs      noauto                0 0
devpts               /dev/pts             devpts     mode=0620,gid=5       0 0
/dev/cdrecorder      /media/cdrecorder    subfs      noauto,fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
/dev/cdrecorder2     /media/cdrecorder2   subfs      noauto,fs=cdfss,ro,procuid,nosuid,nodev,exec,iocharset=utf8 0 0
/dev/fd0             /media/floppy        subfs      noauto,fs=floppyfss,procuid,nodev,nosuid,sync 0 0
none                 /subdomain       subdomainfs noauto         0 0

When I looked at the project page on sourceforge, I found a forum entry that asked if it works with things like USB flash drives (from back in 2005) and the answer from the project admin said: "if you use an automated system to detect the drive when it's plugged in, it will have to be scripted to use subfs."

I also saw that back in 2007, Gentoo dropped submount "because they have to patch it at each Kernel release."

colucix · 09-09-2009, 03:59 PM

Quote:

Originally Posted by gymnart

When I looked, I didn't see any entries for /dev/sda1 or sdb1.

Indeed. There are subfs entries for /dev/floppy and the CD drives, whereas the automount of USB sticks is usually managed by udev.

Quote:

When I looked at the project page on sourceforge, I found a forum entry that asked if it works with things like USB flash drives (from back in 2005) and the answer from the project admin said: "if you use an automated system to detect the drive when it's plugged in, it will have to be scripted to use subfs."

I also saw that back in 2007, Gentoo dropped submount "because they have to patch it at each Kernel release."

Yes. You have to find out which udev rule takes control of the USB mounts and which part is responsible of the Submount system. Here is a thread I followed some time ago, with some (hopefully) useful information about the udev system and its rules.