https://github.com/ABHIRAMSHIBU/rpimultiboot/
I have this code, currently I didn’t polish it at all because its under development. But I am having an issue with compiling this. I have a sdcard with raspbean. If I put the sdcard into raspberry pi 3 and compile this, it works but if I put the sdcard and compile in raspberry pi 4, it puts out this error with linking
[CODE=bash]/usr/bin/ld: test: in function partitionOK': :(.text+0xf0): multiple definition of partitionOK’; /tmp/ccMcfdbw.o:test.c:(.text+0x0): first defined here
/usr/bin/ld: test: in function _fini': :(.fini+0x0): multiple definition of _fini’; /usr/lib/gcc/arm-linux-gnueabihf/8/…/…/…/arm-linux-gnueabihf/crti.o:(.fini+0x0): first defined here
/usr/bin/ld: test: in function __data_start': :(.data+0x0): multiple definition of __data_start’; /usr/lib/gcc/arm-linux-gnueabihf/8/…/…/…/arm-linux-gnueabihf/crt1.o:(.data+0x0): first defined here
/usr/bin/ld: test: in function __data_start': :(.data+0x4): multiple definition of __dso_handle’; /usr/lib/gcc/arm-linux-gnueabihf/8/crtbegin.o:(.data+0x0): first defined here
/usr/bin/ld: test:(.rodata+0x0): multiple definition of _IO_stdin_used'; /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crt1.o:(.rodata.cst4+0x0): first defined here /usr/bin/ld: test: in function _start’:
:(.text+0x0): multiple definition of _start'; /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crt1.o:(.text+0x0): first defined here /usr/bin/ld: test: in function main’:
:(.text+0x1ac): multiple definition of main'; /tmp/ccMcfdbw.o:test.c:(.text+0xbc): first defined here /usr/bin/ld: test: in function printhelp’:
:(.text+0x178): multiple definition of printhelp'; /tmp/ccMcfdbw.o:test.c:(.text+0x88): first defined here /usr/bin/ld: test: in function _init’:
:(.init+0x0): multiple definition of _init'; /usr/lib/gcc/arm-linux-gnueabihf/8/../../../arm-linux-gnueabihf/crti.o:(.init+0x0): first defined here /usr/bin/ld: /usr/lib/gcc/arm-linux-gnueabihf/8/crtend.o:(.tm_clone_table+0x0): multiple definition of TMC_END’; test::(.data+0x8): first defined here
collect2: error: ld returned 1 exit status[/CODE]
Hope you will help me, thanks in advance.
To compile…
git clone https://github.com/ABHIRAMSHIBU/rpimultiboot/
cd rpimultiboot
gcc test.c -o test
If properly compiled
sudo ./test -p [partitionNumberOfAlterativeBootPartition]for example if you have mmcblk0p3 then use -p 3 Now the pi should technically boot into that partition. 