Issue while building dkms

[Juliangg1]

Hey, First of all thank you so much for at least keeping my dongle alive. But so far I tried to follow your installation guide, but it always fails at building+installing the dkms. I am using Kali Linux on 5.4.0 and an tpLink T4U as dongle. Hope you can help me get started again.

[bjlockie]

Post the error.

[cidrmill]

I'm receiving the same error:

`# sudo dkms add -m rtl88x2bu -v ${VER}

Creating symlink /var/lib/dkms/rtl88x2bu/5.6.1/source -> /usr/src/rtl88x2bu-5.6.1

DKMS: add completed. root@c0st3ll0:/home/majic/Downloads/rtl88x2bu# sudo dkms build -m rtl88x2bu -v ${VER}

Kernel preparation unnecessary for this kernel. Skipping...

Building module: cleaning build area... make -j4 KERNELRELEASE=5.4.0-kali4-amd64 KVER=5.4.0-kali4-amd64 src=/usr/src/rtl88x2bu-5.6.1....(bad exit status: 2) Error! Bad return status for module build on kernel: 5.4.0-kali4-amd64 (x86_64) Consult /var/lib/dkms/rtl88x2bu/5.6.1/build/make.log for more information.

DKMS make.log for rtl88x2bu-5.6.1 for kernel 5.4.0-kali4-amd64 (x86_64) Tue 03 Mar 2020 08:54:41 PM CST /bin/sh: 1: bc: not found make ARCH=x86_64 CROSS_COMPILE= -C /lib/modules/5.4.0-kali4-amd64/build M=/var/lib/dkms/rtl88x2bu/5.6.1/build modules make[1]: Entering directory '/usr/src/linux-headers-5.4.0-kali4-amd64' /bin/sh: 1: bc: not found CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_cmd.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_security.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_debug.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_io.o /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c: In function ‘dump_drv_version’: /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:62: error: macro "DATE" might prevent reproducible builds [-Werror=date-time] 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^ In file included from /usr/src/rtl88x2bu-5.6.1/include/drv_types.h:60, from /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:17: /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:44: error: macro "TIME" might prevent reproducible builds [-Werror=date-time] 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^~~~ /usr/src/rtl88x2bu-5.6.1/include/rtw_debug.h:114:34: note: in definition of macro ‘RTW_PRINT’ 114 | _dbgdump(DRIVER_PREFIX fmt, ##arg);\ | ^~~ /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:2: note: in expansion of macro ‘RTW_PRINT_SEL’ 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^~~~~ /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:54: error: macro "DATE" might prevent reproducible builds [-Werror=date-time] 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^~~~ /usr/src/rtl88x2bu-5.6.1/include/rtw_debug.h:114:34: note: in definition of macro ‘RTW_PRINT’ 114 | _dbgdump(DRIVER_PREFIX fmt, ##arg);\ | ^~~ /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:2: note: in expansion of macro ‘RTW_PRINT_SEL’ 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^~~~~ /usr/src/rtl88x2bu-5.6.1/core/rtw_debug.c:45:44: error: macro "TIME" might prevent reproducible builds [-Werror=date-time] 45 | RTW_PRINT_SEL(sel, "build time: %s %s\n", DATE, TIME); | ^~~~ /usr/src/rtl88x2bu-5.6.1/include/rtw_debug.h:224:25: note: in definition of macro ‘RTW_PRINT_SEL’ 224 | _seqdump(sel, fmt, ##arg) /rtw_warn_on(1)/; \ | ^~~ CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_ioctl_query.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_ioctl_set.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_ieee80211.o CC [M] /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_mlme.o cc1: some warnings being treated as errors make[3]: [/usr/src/linux-headers-5.4.0-kali4-common/scripts/Makefile.build:271: /var/lib/dkms/rtl88x2bu/5.6.1/build/core/rtw_debug.o] Error 1 make[3]: Waiting for unfinished jobs.... make[2]: [/usr/src/linux-headers-5.4.0-kali4-common/Makefile:1665: /var/lib/dkms/rtl88x2bu/5.6.1/build] Error 2 make[1]: [/usr/src/linux-headers-5.4.0-kali4-common/Makefile:179: sub-make] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-5.4.0-kali4-amd64' make: *** [Makefile:2270: modules] Error 2`

[cidrmill]

I was able to fix this by apt update and reinstalling the required packages in apt.

[kinsbrunner]

I solved this by doing sudo apt-get install bc

[nizzal]

@kinsbrunner thanks it did help me. Thanks a lot! ^_^