You should download aarch64 one and the same version as the rpm -q libstdc++ tells. The correct rpm should have the dependencies resolved.
It seem the library file is corrupted. To see all the corrupted files you can also run rpm -Va (or just rpm -V package_name) to see if this is only isolated issue or if it's system wide.


st 1. 5. 2019 v 22:20 odesílatel <ng0177@gmail.com> napsal:
I tried this but too many dependencies, see below. Maybe that whole issue is related to using the Pi3 as a DNS resolver at the same time when upgrading although plain updating works very well. Can anyone point me to the right log files to look at. journalctl is inconclusive (to me)? Appreciate.

[pi@raspi]$ sudo rpm -Uvh libstdc++-9.0.1-0.10.fc30.i686.rpm
error: Failed dependencies:
ld-linux.so.2 is needed by libstdc++-9.0.1-0.10.fc30.i686
ld-linux.so.2(GLIBC_2.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6 is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.1) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.1.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.16) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.17) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.18) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.2) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.3.2) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.4) is needed by libstdc++-9.0.1-0.10.fc30.i686
libc.so.6(GLIBC_2.6) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1 is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.3) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_3.4) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GCC_4.2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libgcc_s.so.1(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686
libm.so.6 is needed by libstdc++-9.0.1-0.10.fc30.i686
libm.so.6(GLIBC_2.0) is needed by libstdc++-9.0.1-0.10.fc30.i686


On Wed, May 1, 2019 at 9:04 PM Tom Callaway <tcallawa@redhat.com> wrote:
ImportError: /lib64/libstdc++.so.6: file too short

^^^ This is the core problem. Try downloading the libstdc++ package manually and reinstalling it with rpm.

~tom
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