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One annoyance when entering GPG passphrases in terminal applications on many systems is that a seperate GUI window pops up. To enable passphrase entry in the comfort of your own terminal, set the following line in .gnupg/gpg-agent.conf
pinentry-program /usr/bin/pinentry-curses
After upgrading to openSUSE 13.1, the Samba configuration - which I use mainly to share a directory on my workstation-cum-fileserver to a media player on the local network - mysteriously failed to work as expected. The client could mount, but not see, any directories or files. The only vaguely relevant clue appeared to be this entry in /var/log/samba/log.smbd:
Invalid key 0 given to dptr_close
After much head-scratching, it turns out AppArmor is enabled by default on openSUSE 13.1 and was the source of the error. Resolving the issue with AppArmor brought Samba back to life.
I made the mistake of installing VirtualBox from the openSUSE repository, and after much pain trying to troubleshoot the error "This usually means that the vboxdrv module is not loaded. Try again after loading the module" (which pops up every time a virtual machine is launched), I remember the least painful way to install VirtualBox on openSUSE is to follow these instructions, adjusting the version numbers (both for openSUSE and for VirtualBox) accordingly.
As of the time of writing, download.virtualbox.org doesn't provide packages for openSUSE 13.1, however the packages for 12.3 installed just fine and seems to work so far using some pre-existing images, including different Windows versions.
Note: this issue appears to have gone away in OpenSUSE 13.2.
While installing Debian 6 on VirtualBox, I noticed it evidently detected it was running in VirtualBox and automatically added three virtualbox-ose-guest-* packages to the install, which is nice. However they are somewhat dated - version 3.2.x whereas the GuestAdditions virtual CD mounted by VirtualBox provides 4.1.x.
Remove the existing packages with:
apt-get remove virtualbox-ose-guest-dkms virtualbox-ose-guest-utils virtualbox-ose-guest-x11
(otherwise the GuestAdditions installer will complain) and reboot to remove installed kernel modules.
The virtual CD does not appear to be startable from a double click - the error "Cannot find the autorun program" pops up - instead run the script directly with:
bash VBoxLinuxAdditions-x86.run
A further reboot will activate the GuestAdditions.
I got the following error when building PHP with cURL (on openSuSE 12.1):
/usr/lib64/gcc/x86_64-suse-linux/4.6/../../../../x86_64-suse-linux/bin/ld: ext/curl/.libs/interface.o: undefined reference to symbol 'CRYPTO_set_id_callback'
/usr/lib64/gcc/x86_64-suse-linux/4.6/../../../../x86_64-suse-linux/bin/ld: note: 'CRYPTO_set_id_callback' is defined in DSO /lib64/libcrypto.so.1.0.0 so try adding it to the linker command line
/lib64/libcrypto.so.1.0.0: could not read symbols: Invalid operation
collect2: ld returned 1 exit status
make: *** [sapi/cli/php] Error 1
Not sure why it's happening, but a look in Makefile showed that EXTRA_LIBS contained "-lcrypt" twice:
EXTRA_LIBS = -lcrypt -lz -lresolv -lcrypt -lpq -lrt -lpq -lpng -lz -ljpeg -lcurl -lrt -lm -ldl -lnsl -lxml2 -lzlcurl -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt
Changing the last "-lcrypt" to "-lcrypto" resolved the problem:
EXTRA_LIBS = -lcrypt -lz -lresolv -lcrypt -lpq -lrt -lpq -lpng -lz -ljpeg -lcurl -lrt -lm -ldl -lnsl -lxml2 -lzlcurl -lxml2 -lz -lm -lxml2 -lz -lm -lcrypt -lxml2 -lz -lm -lxml2 -lz -lm -lxml2 -lz -lm -lcrypto