[BUG] v2.1.63 crashes on Alpine Linux (musl): posix_getdents symbol not found

Yes this is a very big issue for every ExitBox user, we use Alpine to isolate and sandbox Claude and this update completely breaks Claude.

Small workaround for Alpine:

1. Install gcompat package with apk add gcompat
2. Create posix_getdents_fix.c

```
#define _GNU_SOURCE
#include <dirent.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>

ssize_t posix_getdents(int fd, void *buf, size_t count) {
return syscall(SYS_getdents64, fd, buf, count);
}
```

1. Compile

``
gcc -shared -fPIC -O2 -o posix_getdents_fix.so posix_getdents_fix.c
``

1. Start Claude

```
$ LD_PRELOAD="/lib/libgcompat.so.0:/home/username/posix_getdents_fix.so" /home/username/.local/bin/claude

▐▛███▜▌ Claude Code v2.1.63
▝▜█████▛▘ Sonnet 4.6 · Claude Pro
▘▘ ▝▝
```

Thanks @CarstenGrohmann , fix worked for me

For anyone on Alpine who applied the posix_getdents shim workaround, you can make it permanent by wrapping the claude launcher so you don’t have to set LD_PRELOAD every time.

I kept the installer managed binary and just added a small wrapper in ~/.local/bin.

cp ~/.local/bin/claude ~/.local/bin/claude.orig

cat > ~/.local/bin/claude << 'EOF'
#!/bin/sh
export LD_PRELOAD="/lib/libgcompat.so.0:$HOME/posix_getdents_fix.so${LD_PRELOAD:+:$LD_PRELOAD}"
exec "$HOME/.local/bin/claude.orig" "$@"
EOF

chmod +x ~/.local/bin/claude

This keeps Claude auto updates working because the wrapper still calls the installer managed launcher. Now claude --version works normally without manually setting LD_PRELOAD.

Small workaround for Alpine: 1. Install gcompat package with apk add gcompat 2. Create posix_getdents_fix.c `` #define _GNU_SOURCE #include <dirent.h> #include <sys/syscall.h> #include <unistd.h> #include <errno.h> #include <sys/types.h> ssize_t posix_getdents(int fd, void *buf, size_t count) { return syscall(SYS_getdents64, fd, buf, count); } ` 3. Compile ` gcc -shared -fPIC -O2 -o posix_getdents_fix.so posix_getdents_fix.c ` 4. Start Claude ` $ LD_PRELOAD="/lib/libgcompat.so.0:/home/username/posix_getdents_fix.so" /home/username/.local/bin/claude ▐▛███▜▌ Claude Code v2.1.63 ▝▜█████▛▘ Sonnet 4.6 · Claude Pro ▘▘ ▝▝ ``

Change last step to

LD_PRELOAD="/lib/libgcompat.so.0:$PWD/posix_getdents_fix.so" claude install 2.1.62

Also running into same issue reported

Same issue

same issue

same issue

We have a fix for this in the pipe + additional steps to prevent this going forward. This should be fixed early next week.

For the time being, please use a version prior to 2.1.63

+1

It seems solved already

This crash should no longer occur with 2.1.97 - we've added additional testing to prevent this going forward.

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.