[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: Fwd: /dev/null > /dev/sdb1 !



Am 2008-04-25 01:21:39, schrieb Rafael Fontenelle:
> Strange. I set a virtual machine with an extra harddisk and I just ran 'cat
> /dev/null > /dev/hdd' as root with /dev/hdd3 umounted in the first attempt
> and then mounted in the second, but nothing happened with my partition or
> the whole virtual disk. See the output below:
> 
> rffdebian01:/# cat /dev/null > /dev/hdd
> rffdebian01:/# cd /mnt/hdd3/
> rffdebian01:/mnt/hdd3# ls
> file
> rffdebian01:/mnt/hdd3#
> 
> It seems that /dev/null really returned _nothing_. Very different from 'cat
> /dev/zero > /dev/hdd'. This one really formated the virtual harddisk,
> cleaning incl. the partition table (I had to remake the partitions with
> cfdisk). Also displayed a message after completing the harddisk with zeros.
> 
> rffdebian01:/# umount /dev/hdd3 && cat /dev/zero > /dev/hdd
> cat: write error: No space left on device
> rffdebian01:/#

    dd if=/dev/zero of=/dev/hdd bs=1M

Thanks, Greetings and nice Day
    Michelle Konzack
    Systemadministrator
    24V Electronic Engineer
    Tamay Dogan Network
    Debian GNU/Linux Consultant


-- 
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack   Apt. 917                  ICQ #328449886
+49/177/9351947    50, rue de Soultz         MSN LinuxMichi
+33/6/61925193     67100 Strasbourg/France   IRC #Debian (irc.icq.com)

Attachment: signature.pgp
Description: Digital signature


Reply to: