[Xperia Z1 Q&A, Help & Troubleshooting] spiritonline:
You're quick!

Here's the output:

==============================================
= =
= PhilZ Touch, CWM and TWRP Dual Recovery =
= Maintained by [NUT] =
= =
= For Many Sony Xperia Devices! =
= =
==============================================

1. Installation on ROM rooted with SuperSU
2. Installation on ROM rooted with SuperUser
3. Installation on unrooted ROM using the TowelRoot method
4. Install ADB drivers to windows
5. Exit

Please choose install action.
[1,2,3,4,5]?1
* daemon not running. starting it now on port 5037 *
* daemon started successfully *

=============================================
Waiting for Device, connect USB cable now...
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Device found!

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Getting ro.build.product
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Device model is C6903
Firmware is 14.4.A.0.133

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Step2 : Sending the recovery files.
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mkdir failed for /data/local/tmp/recovery, File exists
13 KB/s (29 bytes in 0.002s)
3710 KB/s (15757 bytes in 0.004s)
297 KB/s (501 bytes in 0.001s)
3952 KB/s (11842 bytes in 0.002s)
5157 KB/s (56834 bytes in 0.010s)
1914 KB/s (3082 bytes in 0.001s)
187 KB/s (385 bytes in 0.002s)
5708 KB/s (657704 bytes in 0.112s)
5432 KB/s (2965179 bytes in 0.533s)
5374 KB/s (2598631 bytes in 0.472s)
5795 KB/s (1875928 bytes in 0.316s)
3093 KB/s (8759 bytes in 0.002s)

=============================================
Step3 : Setup of dual recovery.
=============================================
Look at your device and grant supersu access!
Press any key to continue AFTER granting root access.
-rwxr-xr-x 1 shell shell 657704 Jul 31 17:09 /data/local/tmp/recover
y/busybox
Press any key to continue . . .

##########################################################
#
# Installing XZDR version 2.7.154 BETA
#
#####

Temporarily disabling the RIC service, remount rootfs and /system writable to al
low installation.
mount: permission denied (are you root?)
mount: permission denied (are you root?)
Copy recovery files to system.
cp: can't create '/system/bin/recovery.twrp.cpio.lzma': File exists
cp: can't create '/system/bin/recovery.cwm.cpio.lzma': File exists
cp: can't create '/system/bin/recovery.philz.cpio.lzma': File exists
chmod: /system/bin/recovery.twrp.cpio.lzma: Read-only file system
chmod: /system/bin/recovery.cwm.cpio.lzma: Read-only file system
chmod: /system/bin/recovery.philz.cpio.lzma: Read-only file system
Copy chargemon script to system.
cp: can't create '/system/bin/chargemon': File exists
chmod: /system/bin/chargemon: Read-only file system
Copy dualrecovery.sh to system.
cp: can't create '/system/bin/dualrecovery.sh': File exists
chmod: /system/bin/dualrecovery.sh: Read-only file system
Copy rickiller.sh to system.
cp: can't create '/system/bin/rickiller.sh': File exists
chmod: /system/bin/rickiller.sh: Read-only file system
Installing NDRUtils to system.
cp: can't create '/system/app/NDRUtils.apk': File exists
chmod: /system/app/NDRUtils.apk: Read-only file system
Copy disableric to system.
cp: can't create '/system/xbin/disableric': File exists
chmod: /system/xbin/disableric: Read-only file system
Copy busybox to system.
cp: can't create '/system/xbin/busybox': Read-only file system
cp: can't create '/system/.XZDualRecovery/busybox': File exists
chmod: /system/xbin/busybox: No such file or directory
Trying to find and update the gpio-keys event node.
Found and will be using /dev/input/event4!
Trying to find and update the power key event node.
Found and will be monitoring /dev/input/event3!
Speeding up backups.
Make sure firstboot goes to recovery.

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DEVICE WILL NOW TRY A DATA SAFE REBOOT!
=============================================

=============================================
Your installation has already cleaned up after
itself if you see the install.bat/install.sh exit.
=============================================

/system/bin/sh: /system/xbin/busybox: not found

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Installation finished. Enjoy the recoveries!
=============================================

Press any key to continue . . .