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tkzv
Tux's lil' helper
Joined: 22 Aug 2014
Posts: 83
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 Posted: Tue Feb 13, 2024 10:04 am Post subject: nut-scanner cannot find libusb |
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When I try to run nut-scanner (as root):
| Code: | # /usr/bin/nut-scanner
Cannot load USB library (/usr/lib64/libusb-1.0.so) : file not found. USB search disabled.
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/usr/lib64/libusb-1.0.so does exist, but it is a dummy text file:
| Code: |
$ cat /usr/lib64/libusb-1.0.so
/* GNU ld script
Since Gentoo has critical dynamic libraries in /lib, and the static versions
in /usr/lib, we need to have a "fake" dynamic lib in /usr/lib, otherwise we
run into linking problems. This "fake" dynamic lib is a linker script that
redirects the linker to the real lib. And yes, this works in the cross-
compiling scenario as the sysroot-ed linker will prepend the real path.
See bug https://bugs.gentoo.org/4411 for more info.
*/
OUTPUT_FORMAT ( elf64-x86-64 )
GROUP ( /lib64/libusb-1.0.so.0 )
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/usr/lib/libusb-1.0.so.0.3.0 is real, though. But how do I use it?
LD_LIBRARY_PATH did not help:
| Code: | # LD_LIBRARY_PATH='/usr/lib' nut-scanner
Cannot load USB library (/usr/lib64/libusb-1.0.so) : file not found. USB search disabled.
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dev-libs/libusb-1.0.26, sys-power/nut-2.8.0-r3.
ANSWER: https://bugs.gentoo.org/486640, https://bugs.gentoo.org/836776
https://github.com/networkupstools/nut/blob/master/tools/nut-scanner/nutscan-init.c
https://github.com/networkupstools/nut/blob/master/common/common.c
nut-scanner seems to use its own algorithm to look for libusb-1.0.so. As of 2.8.0 it ignores LD_LIBRARY_PATH and uses the first file it finds. And it starts with /ust/lib64/
The only solution so far is replacing /usr/lib64/libusb-1.0.so with a link to /lib64/libusb-1.0.so.0.3.0 and then back. |
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metapsyborg
n00b
Joined: 28 Sep 2011
Posts: 20
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| Posted: Thu Feb 22, 2024 3:17 am Post subject: |
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| Thanks for posting this info. I just had the same problem |
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