in response to a posting in my local linux user group, how
does one build in-memory ramdisks (a redundancy, i'm sure) on
the fly?

  once upon a time, i'm sure i pulled this off with:

# dd if=/dev/zero of=/dev/ram0 bs=1k count=16384  (for example)
# mke2fs /dev/ram0
# mount /dev/ram0 /mnt

  i now have a 16M filesystem in memory, which i can see with "mount",
"df" and so on, and i can build more on /dev/ram1 and so on.

  the current issues:

1) under seawolf, i can't seem to make them >4M.  is there a reason
  for this?  i'm sure i used to make them larger.

2) is there a way to list the currently allocated ramdisks in memory
  with a single command?

3) is there a way to free this memory when the filesystem is no
  longer needed?

rday

-- 
Robert P. J. Day
Eno River Technologies, Durham NC
Unix, Linux and Open Source training


Microsoft:  Committed to putting the "backward" into "backward compatibility."



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