>>
>> BTW, if you want to try a parallel install of rpm-5.4.16 to system rpm, do
>> this
>> 1) add configure ... --with-paths-versioned
>> 2) instead of doing "make install", do "make DESTDIR=/var/tmp/rpm-root"
>> and copy the tree to /
>> The issue is libtool relinking necessitates the versions being
>> added after install -c ... which
>> just clobbered /usr/bin/rpm ...
>>
>> Cloning the data base --with-paths-versioned SHOULD be as simple as doing
>> cp /var/lib/rpm{,-5.4.16}
>> rpm-5.4.16 --rebuilddb
>> but YMMV.
>>
I should be a little bit more careful about context here.
For distros already using RPM5, cloning an rpmdb SHOULD be as simple
as copying /var/lib/rpm/Packages and doing a —rebuild.
If using rpm from rpm.org, then the conversion is slightly more complicated
to perform 2 actions:
1) byte swapping (from native -> network order) the int32_t key into
Packages
2) switching from DB_HASH -> DB_BTREE
The manual procedure isn’t too hard. The snippet (from tests/Makefile.am) that
I use with “make test” should describe the steps needed to write a conversion
script.
The actual conversion is essentially performed with sed, something like
dbXY_dump olddb/Packages \
| sed \
-e 's/^type=hash$$/type=btree/' \
-e '/^h_nelem=/d' \
-e 's/^ \(..\)\(..\)\(..\)\(..\)$$/ \4\3\2\1/' \
| dbXY_load newdb/Packages;
substituting as appropriate “dbXY_dump”, “dbXY_load” (i.e., XY is typically
whatever Berkeley DB version you are using), and “olddb” and “newdb”
are the system /var/lib/rpm and the parallel cloned /var/lb/rpm-5.4.16.
There is also a utility dbconvert that will perform the necessary conversion
(but I have
forgotten the CLI arguments. You can likely find more complete info in the
*Mandriva
mailing lists from 2011).
I can/will provide either a script (or more info on using dbconvert) on request.
I’m just a lazy/busy schmuck … ;-)
hth
73 de Jeff
=================================================================================
check-convert:
@echo "=== $@ ==="
case `rpm --version` in \
*5.4*|*5.3*) echo "Nothing to do." ;; \
*) echo "Converting system database."; \
rm -rf newdb olddb; \
mkdir -p olddb; \
echo "--> copy the system rpmdb"; \
cp /var/lib/rpm/Packages olddb; \
echo "--> rebuild to renumber the header instances"; \
rpm \
--dbpath $(testdir)/olddb \
--rebuilddb; \
mkdir -p newdb/log newdb/tmp olddb; \
echo "--> convert header instances to network order"; \
@__DB_DUMP@ olddb/Packages \
| ${sed} \
-e 's/^type=hash$$/type=btree/' \
-e '/^h_nelem=/d' \
-e 's/^ \(..\)\(..\)\(..\)\(..\)$$/ \4\3\2\1/' \
| @__DB_LOAD@ newdb/Packages; \
echo "--> regenerate the indices"; \
cp ../rpmdb/DB_CONFIG newdb; \
${rpm} \
--dbpath $(testdir)/newdb \
--rebuilddb -vv; \
ls -l newdb; \
echo "--> test the conversion"; \
${rpm} --dbpath $(testdir)/newdb -qa; \
${rpm} --dbpath $(testdir)/newdb -q rpm; \
;; \
esac
