12:11:13 <food4lyfe> Hey I need help with initializing a remote node on raspberry pi. I posted this on the #monero channel as well but I think this channel is more appropriate
12:12:02 <food4lyfe> I tried running monerod using the Armv7 but it doesn't seem to work. It keeps crashing saying "Bus error". Anyone knows why?
12:14:10 <m-relay> <k​4r4b3y:karapara.net> Armv7 is currently unofficially not supported.
12:14:29 <m-relay> <k​4r4b3y:karapara.net> I remember trying monerod on my armv7 CPU smartphone and single board computer
12:14:47 <m-relay> <k​4r4b3y:karapara.net> on both platforms, monerod has crashed, with the same error as your, "Bus error."
12:15:22 <m-relay> <k​4r4b3y:karapara.net> I opened some github issues last year on this topic. We worked on the issue comments with luigi and hyc, but the result lead us nowhere.
12:19:45 <food4lyfe> Ahh ic ic, all good then. I'll try to find another way around it. My raspi actually has ARMv8 but idk why it couldn't run it. Everytime I run it, it keeps saying "No files such file or directory" which then lead me to ARMv7. Anyways thanks m-relay!
12:20:52 <m-relay> <k​4r4b3y:karapara.net> what is the model of your raspi? 3B?
12:21:11 <food4lyfe> Nope raspberry pi 4 model b
12:21:25 <m-relay> <k​4r4b3y:karapara.net> why don't you try the armv8?
12:22:07 <food4lyfe> I did, couldn't run it. It keeps on saying "No such files or directory"
12:23:12 <selsta> food4lyfe: what's the output of "file monerod"
12:24:05 <food4lyfe> monerod: ELF 64-bit LSB pie executable, ARM aarch64, version 1 (GNU/Linux), dynamically linked, interpreter /lib/ld-linux-aarch64.so.1, for GNU/Linux 3.7.0, BuildID[sha1]=b29c5e0b2e68458d0b5ba3504c65c8bee4270d2d, with debug_info, not stripped
12:26:01 <selsta> do you have at /lib/ld-linux-aarch64.so.1 ?
12:26:07 <selsta> a file at
12:27:00 <food4lyfe> No
12:27:30 <moneromooo> Bus error means unaligned access or access to unmapped virtual memory. Probably the latter, as it tends to happen to LMDB in the face of corrupted database.
12:27:50 <selsta> you need it to run the program
12:27:57 <m-relay> <t​obtoht:monero.social> food4lyfe: install the 64-bit version of the OS
12:28:50 <selsta> https://forums.raspberrypi.com/viewtopic.php?p=2145142&sid=af2e2cf1d49e90215e4c1acae16c42e6#p2145142
12:28:56 <selsta> I think that's your problem
12:30:42 <food4lyfe> m-relay: I think I installed the 64-bit version. when using uname -a, it printed out aarch64
12:32:50 <selsta> seems you have a 64bit kernel but 32bit OS according to that link, you need a 64bit OS
12:33:13 <m-relay> <t​obtoht:monero.social> https://www.raspberrypi.com/software/operating-systems/ scroll down to 64-bit
12:34:14 <food4lyfe> selsta: Yeah it seems like thats the problem. I'll reinstall the OS, I'll follow up after if there's anymore issues. Thanks selsta!
12:35:52 <food4lyfe> m-relay: Yup, thanks for the link. I'll try that one. I'll let you know after I reinstalled it. Thanks for helping out m-relay
12:39:51 <m-relay> <0​xfffc:matrix.org> if you have objdump in that machine, "arm-none-linux-gnueabi-objdump -x monerod | grep NEEDED"
12:40:25 <m-relay> <0​xfffc:matrix.org> then investigate .so files with readelf --headers *.so
12:41:21 <m-relay> <0​xfffc:matrix.org> SIGBUS is really a different/deeper version of SIGSEGV.
12:51:29 <food4lyfe> m-relay: I'm not familiar with objdump. I do have objdump but not the one you are referring to. Do you know which package has that binary?
12:53:40 <xFFFC0000> yeah, samething. "objdump -x monerod | grep NEEDED"
12:55:25 <food4lyfe> objdump gives out "objdump: monerod: file format not recognized"
12:57:05 <xFFFC0000> now do readelf --headers monerod
12:57:33 <xFFFC0000> as selsta mentioned, I expect something seriously wrong with that installation.
13:00:17 <xFFFC0000> appears that you don't have a correct monerod file. elf headers are messed up. objdump should've worked. Anyway, readelf will tell more about the issue. 
13:00:52 <selsta> it's not the file
13:02:20 <selsta> oh I misread, ignore me
13:02:41 <food4lyfe> Yeah, readelf shows that in the program headers section it requires /lib/ld-linux-aarch64.so.1. Currently reinstalling it to the 64-bit OS version
13:03:28 <xFFFC0000> anyway, the root is the one selsta mentioned, 64bit 32bit mismatch 
13:03:39 <xFFFC0000> s/root/root issue/
13:47:36 <food4lyfe> I have to go. But thanks xFFFC0000, m-relay, selsta for the help
13:48:39 <food4lyfe> If there are more issues with it, I'll ask it here :D
14:06:10 <hyc> unmapped memory gets a SIGSEGV. SIGBUS almost always means unaligned access.
14:55:43 <moneromooo> Pretty sure LMDB hits SIGBUS when reading data from "the LMDB database" but off the file extents, which happens on corrupt data.