I discovered something interesting. Both of these run as a user
without privileges on a RH7.3 + updates box:
dd if=/dev/zero of=oink
yes 'abcdabcd' > oink
Other than the contents of the file being pushed to disk, these are
the same essential thing, right?: fill the local disk partition up.
Wrong. Thank you for playing.
The first one *does* fill the disk.
The second one hits a filesize limit.
| magnitude spare:0:267} dd if=/dev/zero of=oink
| dd: writing to `oink': No space left on device
| 19052521+0 records in
| 19052520+0 records out
| magnitude spare:1:268} df .
| Filesystem 1k-blocks Used Available Use% Mounted on
| /dev/hda11 10080488 9568420 0 100% /mnt/spare
| magnitude spare:0:269} ls
| lost+found/ oink
| magnitude spare:0:270} rm oink
| magnitude spare:0:271} ls /dev/one
| ls: /dev/one: No such file or directory
| magnitude spare:1:272} yes 'abcdabcd' > oink
| Filesize limit exceeded
| magnitude spare:153:273} df .
| Filesystem 1k-blocks Used Available Use% Mounted on
| /dev/hda11 10080488 2132044 7436376 23% /mnt/spare
After a bit more thought during typing the email, we have another dd
running in the background and wala!:
| magnitude spare:0:280} ls -l
| total 7450844
| drwx------ 2 root root 16384 Mar 17 2002 lost+found/
| -rw-r--r-- 1 sinck sinck 2147483647 Jan 9 06:12 oink
| -rw-r--r-- 1 sinck sinck 5474697728 Jan 9 06:28 oink2
So... a 2G file limit. What?
:-)
Good morning.
David
(text/plain)