cat log
Starting recovery on Fri Jul  8 15:54:57 2011
framebuffer: fd 4 (480 x 800)
ClockworkMod Recovery v3.0.2.5
recovery filesystem table
=========================
  0 /tmp ramdisk (null) (null)
  1 /boot bml boot (null)
  2 /cache rfs /dev/block/stl11 (null)
  3 /data rfs /dev/block/stl10 (null)
  4 /recovery bml recovery (null)
  5 /sdcard vfat /dev/block/mmcblk0p1 (null)
  6 /system rfs /dev/block/stl9 (null)

W:Unable to get recovery.fstab info for /sd-ext during fstab generation!
I:Completed outputting fstab.
I:Processing arguments.
I:Checking arguments.
I:device_recovery_start()
Command: "/sbin/recovery"

ro.secure=0
ro.allow.mock.location=0
ro.debuggable=1
persist.service.adb.enable=1
ro.factorytest=0
ro.serialno=
ro.bootmode=unknown
ro.baseband=unknown
ro.carrier=unknown
ro.bootloader=unknown
ro.hardware=SPH-D700
ro.revision=12
dpm.allowcamera=1
ro.debugable=1
init.svc.recovery=running
init.svc.adbd=running

I:Checking for extendedcommand...
I:Running extendedcommand...
Waiting for SD Card to mount (20s)
SD Card mounted...
I:Running script:
I:
install_zip("/cache/recovery/BattTweak-RC1.zip");

parse returned 0; 0 errors encountered

-- Installing: /cache/recovery/BattTweak-RC1.zip
Finding update package...
I:Update location: /cache/recovery/BattTweak-RC1.zip
Opening update package...
E:Can't open /cache/recovery/BattTweak-RC1.zip
(Too many symbolic links encountered)
Installation aborted.
result is []