----- Original Message ----- > I've been using crash 6.x for some time on Centos6, a binary RPM installed from a yum repo. > Yesterday I realized I didn't have the crash extensions installed. And a yum > search found no listing for crash-extensions in my current repos. > > So I downloaded a 7.0.8 source RPM from crash-utility.com, built and:: > installed it: > > $ rpmbuild -vv --rebuild crash-7.0.8-0.src.rpm > $ cd ~/rpmbuild/RPMS/x86 > $ sudo yum localinstall --nogpgcheck crash-7.0.8-0.rpm > > But when I tested it on a previously working set of vmlinux/vmcore files, > I got the following error: > > crash: compressed kdump: uncompress failed: no lzo compression support > > I eventually ended up extracting the source rpm and doing: > > $ cd ~/dev/src/crash-7.0.8 > $ make lzo > > and this copy of crash works. Right -- that's all correct. > However, I really wanted to make a new RPM out of this, but everything I tried > always ended up reverting to no LZO. Looking at the configure.c source, I see > that 'make release' has a different method for building the Makefile which does > not seem to allow for LZO. Is it possible to build an lzo-enabled rpm using > crash configure and make? Or with rpmbuild? If so, how? You can modify the crash.spec file by adding < BuildRequires: ncurses-devel zlib-devel bison > BuildRequires: ncurses-devel zlib-devel lzo-devel bison snappy-devel < make RPMPKG="%{version}" > make RPMPKG="%{version}" lzo snappy And then create a new src.rpm with rpmbuild. Alternatively, you could add this patch to the crash.spec file, which is taken from the Fedora and RHEL7 distros: --- crash-7.0.2/diskdump.c.orig +++ crash-7.0.2/diskdump.c @@ -23,6 +23,8 @@ * GNU General Public License for more details. */ +#define LZO +#define SNAPPY #include "defs.h" #include "diskdump.h" --- crash-7.0.2/Makefile.orig +++ crash-7.0.2/Makefile @@ -223,7 +223,7 @@ all: make_configure gdb_merge: force @if [ ! -f ${GDB}/README ]; then \ make --no-print-directory gdb_unzip; fi - @echo "${LDFLAGS} -lz -ldl -rdynamic" > ${GDB}/gdb/mergelibs + @echo "${LDFLAGS} -lz -llzo2 -lsnappy -ldl -rdynamic" > ${GDB}/gdb/mergelibs @echo "../../${PROGRAM} ../../${PROGRAM}lib.a" > ${GDB}/gdb/mergeobj @rm -f ${PROGRAM} @if [ ! -f ${GDB}/config.status ]; then \ Dave -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility