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zdev: add helper to convert from zdev config to dasd_mod.dasd

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Converts zdev configuration into the syntax of the kernel module parameter
dasd_mod.dasd. Only DASD options with non-default values are emitted. The
result string occurs on stdout. It represents one device-specification for
the given DASD device bus-ID.

Example:
/lib/s390-tools/zdev-to-dasd_mod.dasd persistent 0.0.da5d
0.0.da5d(erplog)

User:
https://github.com/storaged-project/blivet/pull/1162
to generate dracut cmdline entries such as rd.dasd=0.0.da5d(erplog)

Github-ID: https://github.com/ibm-s390-linux/s390-tools/pull/158
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Steffen Maier
2023-05-12 13:57:55 +02:00
committed by Jan Höppner
parent 06a30ae529
commit 689b894506
2 changed files with 39 additions and 1 deletions
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3
zdev/src/Makefile
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@@ -106,11 +106,12 @@ libs = $(rootdir)/libap/libap.a \
chzdev: $(chzdev_objects) $(libs)
lszdev: $(lszdev_objects) $(libs)
install: chzdev zdev_id
install: chzdev zdev_id zdev-to-dasd_mod.dasd
$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)
$(INSTALL) -c chzdev $(DESTDIR)$(BINDIR)
$(INSTALL) -c lszdev $(DESTDIR)$(BINDIR)
$(INSTALL) -c zdev_id $(DESTDIR)$(TOOLS_LIBDIR)
$(INSTALL) -c zdev-to-dasd_mod.dasd $(DESTDIR)$(TOOLS_LIBDIR)
ifeq ($(HAVE_DRACUT),1)
$(INSTALL) -m 755 zdev-root-update.dracut \
$(DESTDIR)$(TOOLS_LIBDIR)/zdev-root-update