Kali WSL2 "qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found" when starting the multiboot usb gui app

martin155

Environment

Windows: Windows 10 Version 2004 Build 20262.1010
Your Distribution version: Kali 2020.4
WSL2

Steps to reproduce

sudo apt-get install python3-pyqt5 p7zip-full parted util-linux python3-pyudev mtools python3-dbus python3-six

Then I downloaded the multibootusb from https://codeload.github.com/mbusb/multibootusb/zip/master and I extracted the archive and run:

sudo python3 ./multibootusb

After that I get following error:

Using python version  3.8.6 (default, Sep 25 2020, 09:36:53)
[GCC 10.2.0] on platform Linux-4.19.128-microsoft-standard-x86_64-with-glibc2.29
Running multibootusb version 9.3.0 from source...
Starting multibootusb GUI...
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Aborted

After strace sudo python3 ./multibootusb I got:

execve("/usr/bin/sudo", ["sudo", "python3", "./multibootusb"], 0x7ffd662d4900 /* 19 vars */) = 0
access("/etc/suid-debug", F_OK)         = -1 ENOENT (No such file or directory)
brk(NULL)                               = 0x55c25482d000
fcntl(0, F_GETFD)                       = 0
fcntl(1, F_GETFD)                       = 0
fcntl(2, F_GETFD)                       = 0
access("/etc/suid-debug", F_OK)         = -1 ENOENT (No such file or directory)
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/haswell/x86_64/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/tls/haswell/x86_64", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/haswell/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/tls/haswell", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/x86_64/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/tls/x86_64", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/tls/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/tls", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/haswell/x86_64/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/haswell/x86_64", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/haswell/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/haswell", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/x86_64/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo/x86_64", 0x7ffd1a7d0ea0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/sudo/libaudit.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
stat("/usr/lib/sudo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=112114, ...}) = 0
mmap(NULL, 112114, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f26000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libaudit.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\3205\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=128944, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb189f24000
mmap(NULL, 172200, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189ef9000
mprotect(0x7fb189efc000, 114688, PROT_NONE) = 0
mmap(0x7fb189efc000, 28672, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fb189efc000
mmap(0x7fb189f03000, 81920, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xa000) = 0x7fb189f03000
mmap(0x7fb189f18000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1e000) = 0x7fb189f18000
mmap(0x7fb189f1a000, 37032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb189f1a000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/sudo/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220}\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=167888, ...}) = 0
mmap(NULL, 179368, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189ecd000
mmap(0x7fb189ed4000, 102400, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fb189ed4000
mmap(0x7fb189eed000, 32768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x20000) = 0x7fb189eed000
mmap(0x7fb189ef5000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x27000) = 0x7fb189ef5000
mmap(0x7fb189ef7000, 7336, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb189ef7000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/sudo/libutil.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libutil.so.1", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\22\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=14720, ...}) = 0
mmap(NULL, 16656, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189ec8000
mmap(0x7fb189ec9000, 4096, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fb189ec9000
mmap(0x7fb189eca000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fb189eca000
mmap(0x7fb189ecb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fb189ecb000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/sudo/libsudo_util.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0Y\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=117472, ...}) = 0
mmap(NULL, 121128, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189eaa000
mmap(0x7fb189eaf000, 69632, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7fb189eaf000
mmap(0x7fb189ec0000, 24576, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x7fb189ec0000
mmap(0x7fb189ec6000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b000) = 0x7fb189ec6000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/sudo/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 |\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=149608, ...}) = 0
mmap(NULL, 136304, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189e88000
mmap(0x7fb189e8f000, 65536, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7fb189e8f000
mmap(0x7fb189e9f000, 20480, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7fb189e9f000
mmap(0x7fb189ea4000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1b000) = 0x7fb189ea4000
mmap(0x7fb189ea6000, 13424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb189ea6000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/sudo/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@n\2\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1839792, ...}) = 0
mmap(NULL, 1852680, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189cc3000
mprotect(0x7fb189ce8000, 1662976, PROT_NONE) = 0
mmap(0x7fb189ce8000, 1355776, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7fb189ce8000
mmap(0x7fb189e33000, 303104, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x170000) = 0x7fb189e33000
mmap(0x7fb189e7e000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ba000) = 0x7fb189e7e000
mmap(0x7fb189e84000, 13576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fb189e84000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libcap-ng.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0#\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=26984, ...}) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb189cc1000
mmap(NULL, 29064, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189cb9000
mmap(0x7fb189cbb000, 12288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fb189cbb000
mmap(0x7fb189cbe000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7fb189cbe000
mmap(0x7fb189cbf000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7fb189cbf000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpcre2-8.so.0", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0p\"\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=584360, ...}) = 0
mmap(NULL, 586664, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189c29000
mmap(0x7fb189c2b000, 409600, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7fb189c2b000
mmap(0x7fb189c8f000, 163840, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x66000) = 0x7fb189c8f000
mmap(0x7fb189cb7000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8d000) = 0x7fb189cb7000
close(3)                                = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0000\21\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0644, st_size=18688, ...}) = 0
mmap(NULL, 20752, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fb189c23000
mmap(0x7fb189c24000, 8192, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1000) = 0x7fb189c24000
mmap(0x7fb189c26000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fb189c26000
mmap(0x7fb189c27000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7fb189c27000
close(3)                                = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb189c21000
arch_prctl(ARCH_SET_FS, 0x7fb189c21d00) = 0
mprotect(0x7fb189e7e000, 12288, PROT_READ) = 0
mprotect(0x7fb189c27000, 4096, PROT_READ) = 0
mprotect(0x7fb189ea4000, 4096, PROT_READ) = 0
mprotect(0x7fb189cb7000, 4096, PROT_READ) = 0
mprotect(0x7fb189cbf000, 4096, PROT_READ) = 0
mprotect(0x7fb189ec6000, 4096, PROT_READ) = 0
mprotect(0x7fb189ecb000, 4096, PROT_READ) = 0
mprotect(0x7fb189ef5000, 4096, PROT_READ) = 0
mprotect(0x7fb189f18000, 4096, PROT_READ) = 0
mprotect(0x55c25437b000, 4096, PROT_READ) = 0
mprotect(0x7fb189f6c000, 4096, PROT_READ) = 0
munmap(0x7fb189f26000, 112114)          = 0
set_tid_address(0x7fb189c21fd0)         = 11152
set_robust_list(0x7fb189c21fe0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fb189e8f690, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fb189e9c140}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fb189e8f730, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fb189e9c140}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
statfs("/sys/fs/selinux", 0x7ffd1a7d1c30) = -1 ENOENT (No such file or directory)
statfs("/selinux", 0x7ffd1a7d1c30)      = -1 ENOENT (No such file or directory)
brk(NULL)                               = 0x55c25482d000
brk(0x55c25484e000)                     = 0x55c25484e000
openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tt"..., 1024) = 474
read(3, "", 1024)                       = 0
close(3)                                = 0
access("/etc/selinux/config", F_OK)     = -1 ENOENT (No such file or directory)
prlimit64(0, RLIMIT_AS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_AS, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_CORE, NULL, {rlim_cur=0, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_CPU, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_CPU, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_DATA, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_DATA, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_FSIZE, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_FSIZE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_LOCKS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_MEMLOCK, NULL, {rlim_cur=64*1024, rlim_max=64*1024}) = 0
prlimit64(0, RLIMIT_NOFILE, NULL, {rlim_cur=1024, rlim_max=1024*1024}) = 0
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NOFILE, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
prlimit64(0, RLIMIT_NPROC, NULL, {rlim_cur=23485, rlim_max=23485}) = 0
prlimit64(0, RLIMIT_NPROC, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = -1 EPERM (Operation not permitted)
prlimit64(0, RLIMIT_NPROC, {rlim_cur=23485, rlim_max=23485}, NULL) = 0
prlimit64(0, RLIMIT_RSS, NULL, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_RSS, {rlim_cur=RLIM64_INFINITY, rlim_max=RLIM64_INFINITY}, NULL) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
prlimit64(0, RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}, NULL) = 0
fcntl(0, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
fcntl(1, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
fcntl(2, F_GETFL)                       = 0x8002 (flags O_RDWR|O_LARGEFILE)
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_IDENTIFICATION", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=369, ...}) = 0
mmap(NULL, 369, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f6b000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=27002, ...}) = 0
mmap(NULL, 27002, PROT_READ, MAP_SHARED, 3, 0) = 0x7fb189f3b000
close(3)                                = 0
futex(0x7fb189e8367c, FUTEX_WAKE_PRIVATE, 2147483647) = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_MEASUREMENT", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_MEASUREMENT", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=23, ...}) = 0
mmap(NULL, 23, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f3a000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_TELEPHONE", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_TELEPHONE", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=59, ...}) = 0
mmap(NULL, 59, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f39000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_ADDRESS", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_ADDRESS", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=167, ...}) = 0
mmap(NULL, 167, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f38000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_NAME", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_NAME", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=77, ...}) = 0
mmap(NULL, 77, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f37000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_PAPER", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_PAPER", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=34, ...}) = 0
mmap(NULL, 34, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f36000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_MESSAGES", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_MESSAGES", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_MESSAGES/SYS_LC_MESSAGES", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=57, ...}) = 0
mmap(NULL, 57, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f35000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_MONETARY", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_MONETARY", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=286, ...}) = 0
mmap(NULL, 286, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f34000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_COLLATE", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_COLLATE", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2586930, ...}) = 0
mmap(NULL, 2586930, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb1899a9000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_TIME", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_TIME", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=3284, ...}) = 0
mmap(NULL, 3284, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f33000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_NUMERIC", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_NUMERIC", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=54, ...}) = 0
mmap(NULL, 54, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189f32000
close(3)                                = 0
openat(AT_FDCWD, "/usr/lib/locale/en_US.UTF-8/LC_CTYPE", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/lib/locale/en_US.utf8/LC_CTYPE", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=340640, ...}) = 0
mmap(NULL, 340640, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb189955000
close(3)                                = 0
openat(AT_FDCWD, "/etc/localtime", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2396, ...}) = 0
fstat(3, {st_mode=S_IFREG|0644, st_size=2396, ...}) = 0
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\7\0\0\0\7\0\0\0\0"..., 4096) = 2396
lseek(3, -1518, SEEK_CUR)               = 878
read(3, "TZif2\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\7\0\0\0\7\0\0\0\0"..., 4096) = 1518
close(3)                                = 0
stat("/etc/sudo.conf", {st_mode=S_IFREG|0644, st_size=3973, ...}) = 0
openat(AT_FDCWD, "/etc/sudo.conf", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=3973, ...}) = 0
read(3, "#\n# Default /etc/sudo.conf file\n"..., 4096) = 3973
read(3, "", 4096)                       = 0
close(3)                                = 0
geteuid()                               = 1000
access("/usr/local/sbin/sudo", X_OK)    = -1 ENOENT (No such file or directory)
access("/usr/local/bin/sudo", X_OK)     = -1 ENOENT (No such file or directory)
access("/usr/sbin/sudo", X_OK)          = -1 ENOENT (No such file or directory)
access("/usr/bin/sudo", X_OK)           = 0
stat("/usr/bin/sudo", {st_mode=S_IFREG|S_ISUID|0755, st_size=178504, ...}) = 0
openat(AT_FDCWD, "/usr/share/locale/en_US.UTF-8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US.utf8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.UTF-8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.utf8/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en/LC_MESSAGES/sudo.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
write(2, "sudo", 4sudo)                     = 4
write(2, ": ", 2: )                       = 2
write(2, "effective uid is not 0, is /usr/"..., 133effective uid is not 0, is /usr/bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?) = 133
ioctl(2, TCGETS, {B38400 opost isig icanon echo ...}) = 0
)                       = 1
write(2, "\n", 1
)                       = 1
exit_group(1)                           = ?
+++ exited with 1 +++

Can you please give me some advice how to run the GUI, thank you.

Edit:

export QT_DEBUG_PLUGINS=1
sudo python3 ./multibootusb

I did not get any aditional result with above commands.

jsulm

@martin155 said in Kali WSL2 "qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found" when starting the multiboot usb gui app:

write(2, "effective uid is not 0, is /usr/"..., 133effective uid is not 0, is /usr/bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?) = 133
ioctl(2, TCGETS, {B38400 opost isig icanon echo ...}) = 0

As you can see it complains about sudo used on a file system with nosudo flag set.
Do you really have to start that app with sudo?

martin155

@jsulm
Yeah I think it is necessary. I have tried the app in Debian distro (which is working fine) but it requires the sudo authentication.

Without sudo:

python3 ./ multibootusb

Here is what I get:

Using python version  3.8.6 (default, Sep 25 2020, 09:36:53)
[GCC 10.2.0] on platform Linux-4.19.128-microsoft-standard-x86_64-with-glibc2.29
Traceback (most recent call last):
  File "./multibootusb", line 225, in <module>
    osdriver.initialize()
  File "/home/admin/multibootusb-master/scripts/osdriver.py", line 456, in initialize
    the_handler = logging.handlers.RotatingFileHandler(
  File "/usr/lib/python3.8/logging/handlers.py", line 148, in __init__
    BaseRotatingHandler.__init__(self, filename, mode, encoding, delay)
  File "/usr/lib/python3.8/logging/handlers.py", line 55, in __init__
    logging.FileHandler.__init__(self, filename, mode, encoding, delay)
  File "/usr/lib/python3.8/logging/__init__.py", line 1143, in __init__
    StreamHandler.__init__(self, self._open())
  File "/usr/lib/python3.8/logging/__init__.py", line 1172, in _open
    return open(self.baseFilename, self.mode, encoding=self.encoding)
PermissionError: [Errno 13] Permission denied: '/var/log/multibootusb.log'

JonB

@martin155
Are you saying the only reason you need sudo is to have write/create access to /var/log/multibootusb.log? In which case, just sort out the permissions.

jsulm

@martin155 Fully agree with @JonB : instead of running whole app as root you should give it read/write access to the log file.

martin155

@jsulm
I am not sure about that. Can you please tell me how to to test that. You mean:

sudo  chmod +x /var/log/multibootusb.log

Also I have tried to run app in

/usr/bin

There is multiboot (probably from the source) and multiboot-pkexec (installed from .deb). And I get the following:

sudo multibootusb-pkexec
Error checking for authorization org.debian.pkexec.run-multibootusb: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dfile_2derror_2dquark.Code4: Failed to open file ?/proc/14569/status?: No such file or directory

sudo multibootusb
/usr/bin/multibootusb:194: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  if uninstall is True and config.usb_disk is not '':
/usr/bin/multibootusb:196: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif uninstall is True and config.usb_disk is '':
/usr/bin/multibootusb:200: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif config.image_path is '' and config.usb_disk is '':
/usr/bin/multibootusb:200: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif config.image_path is '' and config.usb_disk is '':
/usr/bin/multibootusb:203: SyntaxWarning: "is not" with a literal. Did you mean "!="?
  elif config.cli_syslinux is True and config.usb_disk is not '':
/usr/bin/multibootusb:205: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif config.image_path is '' or config.usb_disk is '':
/usr/bin/multibootusb:205: SyntaxWarning: "is" with a literal. Did you mean "=="?
  elif config.image_path is '' or config.usb_disk is '':
Using python version  3.8.6 (default, Sep 25 2020, 09:36:53)
[GCC 10.2.0] on platform Linux-4.19.128-microsoft-standard-x86_64-with-glibc2.29
Traceback (most recent call last):
  File "/usr/bin/multibootusb", line 187, in <module>
    if config.debug is True:
NameError: name 'config' is not defined

jsulm

@martin155 said in Kali WSL2 "qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found" when starting the multiboot usb gui app:

sudo multibootusb

Do you have the shebang line at the top of your Python app?
#!/usr/bin/env python

If not you have to call it as you did before.

"I am not sure about that. Can you please tell me how to to test that":

# x means execution bit, you need /readwrite
sudo  chmod o+rw /var/log/multibootusb.log

martin155

@jsulm
I have following shebang:

#!/usr/bin/env python3

I have also tried (without any luck):

#!/usr/bin/python3

And after I changed the rights to multibootusb.log I get the following when I start the app without sudo:

Using python version  3.8.6 (default, Sep 25 2020, 09:36:53)
[GCC 10.2.0] on platform Linux-4.19.128-microsoft-standard-x86_64-with-glibc2.29
Running multibootusb version 9.3.0 from source...
Starting multibootusb GUI...


Admin privilege is required to run multibootusb.
 If you are running from source try 'sudo python3 ./multibootusb'
 or you can try 'multibootusb-pkexec' (post install)


qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, xcb.

Aborted

jsulm

@martin155 said in Kali WSL2 "qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found" when starting the multiboot usb gui app:

Admin privilege is required to run multibootusb.

OK, then this app requires root.
Then you need to find a solution for
write(2, "effective uid is not 0, is /usr/"..., 133effective uid is not 0, is /usr/bin/sudo on a file system with the 'nosuid' option set or an NFS file system without root privileges?) = 133
ioctl(2, TCGETS, {B38400 opost isig icanon echo ...}) = 0

For example remove nosuid from mount derective (in /etc/fstab).

martin155

@jsulm

I don't have any configuration in /etc/fstab.

Problem is probably caused by the disks mounting and recognizing the disks in WSL2. When I open the app in standard Linux distro (I have tried the Debian) or in Windows everything works alright. The app likely doesn't see any disk (even though it is mounted) because of the use of WSL2.
I have tried to compile the code directly from Sublime Text and the GUI started but I was not able to select any disk. Then I tried to insert the flash drive and mount the disk manually but it still didn't show any disk available.
Furthermore with 'lsblk' I see only the ssd the distro is installed on (even though I have mounted other disk / flash drive).
So this would probably mean it is problem of WSL2 and/or maybe some change in app code is needed, right?