发信人: ebiss()
整理人: zhcharles(2003-04-05 23:52:07), 站内信件
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FreeBSD 和 Linux下:
md 等同 ramdisk
mfs 等同 tmpfs
# man 4 md
To specify the default maximum size of malloc(9) backed disks:
options MD_NSECT=20000 # 10M
The default maximum size of a md disk backed by malloc(9) is
20,000 sectors of 512 bytes each.
This can be changed with the kernel option MD_NSECT.
EXAMPLES
To mount a malloc(9) backed md device on /tmp:
if [ -e /dev/md0 -a -e /dev/md0c ]; then
disklabel -r -w md0 auto &&
newfs /dev/md0c &&
mount /dev/md0c /tmp &&
chmod 1777 /tmp
fi
SEE ALSO
disklabel(5), disklabel(8), fdisk(8), loader(8), newfs(8), vmstat(8)
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