世界珍稀动物排名:lvmcreate_initrd出错

俺使用的是RH9，2.4内核，为了让系统启动时能使用LVM，所以运行lvmcreate_initrd来更改
/boot/initrd-2.4.20-8.img文件，但是命令运行过程中出现以下错误。
cpio: /tmp/mnt.2920/dev/./snd/pcmC2D7c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D0c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D1c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D2c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D3c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D4c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D5c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D6c: No such file or directory
cpio: cannot make directory `/tmp/mnt.2920/dev/./snd': No space left on device
cpio: /tmp/mnt.2920/dev/./snd/pcmC3D7c: No such file or directory
cpio: /tmp/mnt.2920/dev/./aloadC0: No space left on device
cpio: /tmp/mnt.2920/dev/./aloadC1: No space left on device
cpio: /tmp/mnt.2920/dev/./aloadC2: No space left on device
cpio: /tmp/mnt.2920/dev/./aloadC3: No space left on device
cpio: /tmp/mnt.2920/dev/./aloadSEQ: No space left on device
cpio: /tmp/mnt.2920/dev/./lvm: No space left on device
lvmcreate_initrd -- ERROR cpio to ram disk
我检查了df -k输出，剩余空间也没有问题，

17008 .
[root@Airsh tmp]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/hda2 16152764 2665908 12666340 18% /
/dev/hda1 101089 9324 86546 10% /boot
none 127664 0 127664 0% /dev/shm

请各位高手指教。