diff options
Diffstat (limited to 'FAQ')
| -rw-r--r-- | FAQ | 48 |
1 files changed, 30 insertions, 18 deletions
diff --git a/FAQ b/FAQ index 105184dc62..f1ba410366 100644 --- a/FAQ +++ b/FAQ @@ -65,24 +65,25 @@ please let me know. 2.11. I have set up /etc/nis.conf, and the Linux libc 5 with NYS works great. But the glibc NIS+ doesn't seem to work. 2.12. I have killed ypbind to stop using NIS, but glibc - continues using NIS. + continues using NIS. 2.13. Under Linux/Alpha, I always get "do_ypcall: clnt_call: - RPC: Unable to receive; errno = Connection refused" when using NIS. + RPC: Unable to receive; errno = Connection refused" when using NIS. 2.14. After installing glibc name resolving doesn't work properly. -2.15. I have /usr/include/net and /usr/include/scsi as symlinks +2.15. How do I create the databases for NSS? +2.16. I have /usr/include/net and /usr/include/scsi as symlinks into my Linux source tree. Is that wrong? -2.16. Programs like `logname', `top', `uptime' `users', `w' and +2.17. Programs like `logname', `top', `uptime' `users', `w' and `who', show incorrect information about the (number of) users on my system. Why? -2.17. After upgrading to glibc 2.1 with symbol versioning I get +2.18. After upgrading to glibc 2.1 with symbol versioning I get errors about undefined symbols. What went wrong? -2.18. When I start the program XXX after upgrading the library +2.19. When I start the program XXX after upgrading the library I get XXX: Symbol `_sys_errlist' has different size in shared object, consider re-linking Why? What should I do? -2.19. What do I need for C++ development? -2.20. Even statically linked programs need some shared libraries +2.20. What do I need for C++ development? +2.21. Even statically linked programs need some shared libraries which is not acceptable for me. What can I do? 3. Source and binary incompatibilities, and what to do about them @@ -674,7 +675,7 @@ package; available at 2.12. I have killed ypbind to stop using NIS, but glibc - continues using NIS. + continues using NIS. {TK} For faster NIS lookups, glibc uses the /var/yp/binding/ files from ypbind. ypbind 3.3 and older versions don't always remove these files, so @@ -685,7 +686,7 @@ Until ypbind 3.4 is released, you can find a patch at 2.13. Under Linux/Alpha, I always get "do_ypcall: clnt_call: - RPC: Unable to receive; errno = Connection refused" when using NIS. + RPC: Unable to receive; errno = Connection refused" when using NIS. {TK} You need a ypbind version which is 64bit clean. Some versions are not 64bit clean. A 64bit clean implementation is ypbind-mt. For ypbind 3.3, @@ -700,7 +701,18 @@ know about other versions. file is usually the culprit. -2.15. I have /usr/include/net and /usr/include/scsi as symlinks +2.15. How do I create the databases for NSS? + +{AJ} If you have an entry "db" in /etc/nsswitch.conf you should also create +the database files. The glibc sources contain a Makefile which does the +neccessary conversion and calls to create those files. The file is +`db-Makefile' in the subdirectory `nss' and you can call it with `make -f +db-Makefile'. Please note that not all services are capable of using a +database. Currently passwd, group, ethers, protocol, rpc, services shadow +and netgroup are implemented. + + +2.16. I have /usr/include/net and /usr/include/scsi as symlinks into my Linux source tree. Is that wrong? {PB} This was necessary for libc5, but is not correct when using glibc. @@ -711,14 +723,14 @@ in place before you install glibc. However, /usr/include/asm and /usr/include/linux should remain as they were. -2.16. Programs like `logname', `top', `uptime' `users', `w' and +2.17. Programs like `logname', `top', `uptime' `users', `w' and `who', show incorrect information about the (number of) users on my system. Why? {MK} See question 3.2. -2.17. After upgrading to glibc 2.1 with symbol versioning I get +2.18. After upgrading to glibc 2.1 with symbol versioning I get errors about undefined symbols. What went wrong? {AJ} The problem is caused either by wrong program code or tools. In the @@ -732,7 +744,7 @@ price you might have to pay once for quite a number of advantages with symbol versioning. -2.18. When I start the program XXX after upgrading the library +2.19. When I start the program XXX after upgrading the library I get XXX: Symbol `_sys_errlist' has different size in shared object, consider re-linking @@ -754,7 +766,7 @@ be possible that a symbol changed size when that should not have happened. So in case of doubt report such a warning message as a problem. -2.19. What do I need for C++ development? +2.20. What do I need for C++ development? {HJ,AJ} You need either egcs 1.0.2 or gcc-2.8.1 with libstdc++ 2.8.1 (or more recent versions). libg++ 2.7.2 (and the Linux Versions 2.7.2.x) doesn't @@ -764,7 +776,7 @@ library compiled for 2.0 is not compatible due to the new Large File Support (LFS) in version 2.1. -2.20. Even statically linked programs need some shared libraries +2.21. Even statically linked programs need some shared libraries which is not acceptable for me. What can I do? {AJ} NSS (for details just type `info libc "Name Service Switch"') won't @@ -983,8 +995,8 @@ siginterrupt(). functions. Why? {AJ} glibc 2.1 has special string functions that are faster than the normal -library functions. Some of the functions are implemented as inline functions -and others as macros. +library functions. Some of the functions are additionally implemented as +inline functions and others as macros. The optimized string functions are only used when compiling with optimizations (-O1 or higher). The behavior can be changed with two feature |