[Sony Cross-Device General] paulle:
here the same (supersu installed and working) 4.2.2 Xperia z1c

here is the output during install:

==============================================

= =

= 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 ]

[ 4. Exit ]

Please choose install action. [1,2,3,4]?1

* daemon not running. starting it now on port 5037 *

* daemon started successfully *

=============================================

Waiting for Device, connect USB cable now...

=============================================

Device found

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Step2 : Sending the recovery files.

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10 KB/s (29 bytes in 0.002s)

4950 KB/s (15759 bytes in 0.003s)

215 KB/s (501 bytes in 0.002s)

2189 KB/s (11798 bytes in 0.005s)

3267 KB/s (56662 bytes in 0.016s)

751 KB/s (3082 bytes in 0.004s)

40 KB/s (385 bytes in 0.009s)

4729 KB/s (657704 bytes in 0.135s)

4023 KB/s (2602457 bytes in 0.631s)

4910 KB/s (2464762 bytes in 0.490s)

4047 KB/s (1845018 bytes in 0.445s)

1563 KB/s (8658 bytes in 0.005s)

=============================================

Step3 : Setup of dual recovery.

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Look at your device and grant supersu access

Press any key to continue AFTER granting root access.

-rwxr-xr-x 1 shell shell 657704 Apr 29 23:40 /data/local/tmp/recover

y/busybox

Drücken Sie eine beliebige Taste . . .

##########################################################

#

# Installing XZDR version 2.7.123 BETA

#

#####

Temporarily disabling the RIC service, remount rootfs and /system writable to al

low installation.

Copy recovery files to system.

Copy mr wrapper script to system.

Copy chargemon script to system.

Copy dualrecovery.sh to system.

Copy rickiller.sh to system.

Installing NDRUtils to system.

Copy disableric to system.

Copy busybox to system.

cp: can't create '/system/xbin/busybox': Text file busy

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.

Bus error

find: ./proc/8065/task/8065/ns/net: No such file or directory

find: ./proc/8065/ns/net: No such file or directory

Found and will be monitoring /dev/input/event7!

Speeding up backups.

Make sure firstboot goes to recovery.

=============================================

DEVICE WILL NOW TRY A DATA SAFE REBOOT!

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WARNING: linker: app_process has text relocations. This is wasting memory and is

a security risk. Please fix.

WARNING: linker: app_process has text relocations. This is wasting memory and is

a security risk. Please fix.

=============================================

Your installation has already cleaned up after itself if you see the install.bat

/install.sh exit.

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Installation finished. Enjoy the recoveries

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Drücken Sie eine beliebige Taste . . .