On 2010-09-19 10:26 +0200, Rodolfo Medina wrote:

> When I try to copy more than 40MB onto an empty new 2GB usb pendrive, I get an
> inexplicable `No space left on device' error message:
>
>
> `11022008699.jpg' -> `/mnt/pendrive-carolina2/11022008699.jpg'
> `11022008700.jpg' -> `/mnt/pendrive-carolina2/11022008700.jpg'
> cp: cannot create regular file `/mnt/pendrive-carolina2/11022008700.jpg': No 
> space left on device
> `11022008701.jpg' -> `/mnt/pendrive-carolina2/11022008701.jpg'
> cp: cannot create regular file `/mnt/pendrive-carolina2/11022008701.jpg': No 
> space left on device
>
>
> The command df seems to show that everything is all right:
>
> $ df -lh
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/hda6              11G  9.2G  912M  92% /
> tmpfs                 110M     0  110M   0% /lib/init/rw
> udev                   10M   80K   10M   1% /dev
> tmpfs                 110M     0  110M   0% /dev/shm
> /dev/hda1             7.8G  7.3G  541M  94% /mnt/hda1
> /dev/hda7             4.9G  1.9G  2.7G  42% /mnt/hda7
> /dev/hda8             4.9G  3.4G  1.3G  74% /mnt/hda8
> /dev/hda9             7.9G  2.7G  4.9G  36% /mnt/hda9
> /dev/sda1             1.9G   40M  1.9G   3% /mnt/pendrive-carolina2
>
>
> and so parted:
>
> # parted /dev/sda1
> GNU Parted 1.7.1
> Using /dev/sda1
> Welcome to GNU Parted! Type 'help' to view a list of commands.
> (parted) p
>
> Disk /dev/sda1: 2004MB
> Sector size (logical/physical): 512B/512B
> Partition Table: loop
>
> Number  Start   End     Size    File system  Flags
>  1      0.00kB  2004MB  2004MB  fat16
>
>
> Please help understand what the problem may be.  Should I format the device?

Not necessarily (unless you want a better filesystem), but you should
create some subdirectories and move files there.  FAT16 has a rather low
limit of directory entries for the root directory¹, and you're hitting
that.

Switching to FAT32 will avoid that and also waste less disk space, since
the cluster size gets reduced to 4 KiB from 32 KiB with FAT16.

Sven


¹ http://en.wikipedia.org/wiki/Fat16#Final_FAT16


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