# error while loading shared librariers: libqt-mt.so.3 **URL:** \ **Category:** SLED Applications\ **Created:** [August 5, 2014, 12:27am UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934 "2014-08-05T00:27:16Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![aabdelkhalek](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@aabdelkhalek](https://forums.suse.com/u/aabdelkhalek)\ **Post date:** [August 5, 2014, 12:27am UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/1 "2014-08-05T00:27:16Z")
I got a new USB modem from my operator and it contained driver for linux so I installed it and now when I try to run it I get the below error error while loading shared libraries: libqt-mt.so.3: cannot open shared object file: No such file or directory I searched for that lib and found it in /usr/lib64 and /usr/lib/qt3/lib64 Do I need to install the 32 bit version? how to be sure about that? Thanks, Ahmed ---
**Author:** ![mikewillis](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@mikewillis](https://forums.suse.com/u/mikewillis)\ **Post date:** [August 5, 2014, 1:22am UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/2 "2014-08-05T01:22:20Z")
[QUOTE=aabdelkhalek;22937]I got a new USB modem from my operator and it contained driver for linux so I installed it and now when I try to run it I get the below error error while loading shared libraries: libqt-mt.so.3: cannot open shared object file: No such file or directory I searched for that lib and found it in /usr/lib64 and /usr/lib/qt3/lib64 Do I need to install the 32 bit version? how to be sure about that? [/QUOTE] Can you post output of `$ file cmd $ ldd cmd` Replace cmd with whatever it is you’re running. Wrap output in CODE tags for readability, look for the # button in the formatting options. If whatever it is you’re running is a 32bit binary then it’ll need 32bit libraries. ---
**Author:** ![aabdelkhalek](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@aabdelkhalek](https://forums.suse.com/u/aabdelkhalek)\ **Post date:** [August 13, 2014, 6:09pm UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/3 "2014-08-13T18:09:55Z")
[QUOTE=mikewillis;22938]Can you post output of `$ file cmd $ ldd cmd` Replace cmd with whatever it is you’re running. Wrap output in CODE tags for readability, look for the # button in the formatting options. If whatever it is you’re running is a 32bit binary then it’ll need 32bit libraries.[/QUOTE] sorry for my belated reply. Here you’re the outputs you requested ```auto aabdelkhalek@linux-moati:/opt/Etisalat_USB_Modem> file Etisalat_USB_Modem Etisalat_USB_Modem: setuid ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.4.1, dynamically linked (uses shared libs), not stripped ``` ```auto aabdelkhalek@linux-moati:/opt/Etisalat_USB_Modem> ldd Etisalat_USB_Modem linux-gate.so.1 => (0xffffe000) libusb-0.1.so.4 => /usr/lib/libusb-0.1.so.4 (0xf76f2000) libasound.so.2 => /usr/lib/libasound.so.2 (0xf761f000) libqt-mt.so.3 => not found libXext.so.6 => /usr/lib/libXext.so.6 (0xf760e000) libX11.so.6 => /usr/lib/libX11.so.6 (0xf74da000) libpthread.so.0 => /lib/libpthread.so.0 (0xf74bf000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xf73d1000) libm.so.6 => /lib/libm.so.6 (0xf73a9000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xf739a000) libc.so.6 => /lib/libc.so.6 (0xf722c000) libdl.so.2 => /lib/libdl.so.2 (0xf7226000) librt.so.1 => /lib/librt.so.1 (0xf721c000) libXau.so.6 => /usr/lib/libXau.so.6 (0xf7218000) libxcb-xlib.so.0 => /usr/lib/libxcb-xlib.so.0 (0xf7215000) libxcb.so.1 => /usr/lib/libxcb.so.1 (0xf71f7000) /lib/ld-linux.so.2 (0xf7735000) ``` I tried searching for that lib using zypper se libqt and got the below output but I’m not sure which package should I install! ☹ ```auto zypper se libqt Refreshing service 'nu_novell_com'. Loading repository data... Reading installed packages... S | Name | Summary | Type --+-----------------------------+--------------------------------------------------------+----------- i | libQtWebKit-devel | C++ Program Library, Core Components | package i | libQtWebKit4 | C++ Program Library, Core Components | package i | libQtWebKit4-32bit | C++ Program Library, Core Components | package | libqt4 | C++ Program Library, Core Components | srcpackage i | libqt4 | C++ Program Library, Core Components | package i | libqt4-32bit | C++ Program Library, Core Components | package i | libqt4-devel | Qt Development Kit | package | libqt4-devel-doc | Qt documentation | package | libqt4-devel-doc | Qt documentation | srcpackage | libqt4-devel-doc-data | Qt documentation (architecture independent files) | package | libqt4-devel-doc-data | Qt documentation (architecture independent files) | srcpackage i | libqt4-qt3support | C++ Program Library, Core Components | package i | libqt4-qt3support-32bit | C++ Program Library, Core Components | package i | libqt4-sql | Qt 4 SQL related libraries | package i | libqt4-sql-32bit | Qt 4 SQL related libraries | package i | libqt4-sql-mysql | Qt 4 MySQL support | package i | libqt4-sql-mysql-32bit | Qt 4 MySQL support | package | libqt4-sql-plugins | Qt 4 SQL related libraries | srcpackage | libqt4-sql-postgresql | Qt 4 PostgreSQL plugin | package | libqt4-sql-postgresql-32bit | Qt 4 PostgreSQL plugin | package i | libqt4-sql-sqlite | Qt 4 sqlite plugin | package i | libqt4-sql-sqlite-32bit | Qt 4 sqlite plugin | package | libqt4-sql-unixODBC | Qt 4 unixODBC plugin | package | libqt4-sql-unixODBC-32bit | Qt 4 unixODBC plugin | package i | libqt4-x11 | Qt 4 GUI related libraries | package i | libqt4-x11-32bit | Qt 4 GUI related libraries | package | libqtpod | A Qt based library to access the data on an Apple iPod | srcpackage | libqtpod-devel | A Qt based library to access the data on an Apple iPod | package | libqtpod0 | A Qt based library to access the data on an Apple iPod | package | sdksp3-libQtWebKit-devel | Security update for libQt | patch i | sledsp1-libQtWebKit-devel | Recommended update for libqt4 | patch i | sledsp2-libQtWebKit-devel | Security update for libqt4 | patch | sledsp3-libQtWebKit-devel | Security update for libQt | patch ``` ---
**Author:** ![mikewillis](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@mikewillis](https://forums.suse.com/u/mikewillis)\ **Post date:** [August 13, 2014, 6:45pm UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/4 "2014-08-13T18:45:46Z")
[QUOTE=aabdelkhalek;23098]saabdelkhalek@linux-moati:/opt/Etisalat\_USB\_Modem\> file Etisalat\_USB\_Modem Etisalat\_USB\_Modem: setuid ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.4.1, dynamically linked (uses shared libs), not stripped [/CODE] [/QUOTE] OK, so it’s a 32bit binary, so yes, you need the 32bit version of libqt-mt.so.3 which because you’re running 64bit will be will be in a package that has -32bit in the name. `mine:~ # zypper wp libqt-mt.so.3 | grep 32bit | qt3-32bit | package | 3.3.8b-88.21 | x86_64 | SLED11SP3-Pool mine:~ # ` Install qt3-32bit and see if that fixes the problem. ---
**Author:** ![aabdelkhalek](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@aabdelkhalek](https://forums.suse.com/u/aabdelkhalek)\ **Post date:** [August 23, 2014, 2:02pm UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/5 "2014-08-23T14:02:13Z")
[QUOTE=mikewillis;23100]OK, so it’s a 32bit binary, so yes, you need the 32bit version of libqt-mt.so.3 which because you’re running 64bit will be will be in a package that has -32bit in the name. `mine:~ # zypper wp libqt-mt.so.3 | grep 32bit | qt3-32bit | package | 3.3.8b-88.21 | x86_64 | SLED11SP3-Pool mine:~ # ` Install qt3-32bit and see if that fixes the problem.[/QUOTE] Installing qt3-32bit solved the problem and I was able to launch the SW and connect to the internet. However the strange thing is that I was able to do that as root only! In fact, I had to be root just to install the SW! Thanks a lot for your cooperation Ahmed ---
**Author:** ![ab1](https://avatars.discourse-cdn.com/v4/letter/a/d2c977/32.png) [@ab1](https://forums.suse.com/u/ab1)\ **Post date:** [August 23, 2014, 2:17pm UTC](https://forums.suse.com/t/error-while-loading-shared-librariers-libqt-mt-so-3/25934/6 "2014-08-23T14:17:37Z")
On 08/23/2014 05:04 AM, aabdelkhalek wrote:[color=blue] > Installing qt3-32bit solved the problem and I was able to launch the SW > and connect to the internet. However the strange thing is that I was > able to do that as root only! In fact, I had to be root just to install > the SW![/color] That is not strange, that is normal. The only way to install system files is as a user that controls the system, and that user is ‘root’. Rights to do that kind of thing can be delegated using things like ‘sudo’, but at the end of the day the default ownership of both the locations for the installed files from the package, as well as the package system and package metadata, is owned exclusively by ‘root’, so you must escalate privileges (to ‘root’) to do those things. This is the normal privilege model of a secure OS. Running the program is a bit less certain, since many programs can be run as other users. This one, though, likely deals with hardware and system configuration, which means playing with system files again and thus another need to run temporarily as ‘root’ while setting things up. Often things that need to work with networking hardware, such as the Network Manager tool that lets an end user configure networking from the GUI, will run as ‘root’ but provide an interface for a non-root user so that users are not running as ‘root’ full time, even if some of their apps magically have power to do system-wide things (like changing modem/NIC/VPN settings). – Good luck. If you find this post helpful and are logged into the web interface, show your appreciation and click on the star below…