Previously, I've sent out two versions of the targets hook framework. after discussion we decided to finish "removing root=X" first using the approach of v1, thus I drafted this patch series. We can continue the targets hook framework if we really need it in the future. This patch series focuses on removing "root=X" for kdump, and always add the dump target(even for root target) via dracut's "--mount ..." explicitly. There are two cases we don't remove "root=X": 1) "default dump_to_rootfs" is specified. 2) fadump, AFAIK fadump can directly switch to root after vmcore dumping, I am not sure, would be apprieciated if someone has a clear answer. PATCH1 is a bug fix I found during my nfs diskless tests. PATCH2 is a bug fix needed by PATCH3. PATCH3 is the actual implemenation. PATCH4 is a revert patch due to having PATCH3. Xunlei Pang (4): module-setup: install network for diskless environment kdumpctl: fix a bug in remove_cmdline_param() kdumpctl: remove "root=X" for kdump boot Revert "kdumpctl: filter 'root' kernel parameter when running in live images" dracut-module-setup.sh | 8 +++++--- kdumpctl | 42 +++++++++++++++++++++++++++++++----------- live-image-kdump-howto.txt | 2 ++ mkdumprd | 29 +++++++++-------------------- 4 files changed, 47 insertions(+), 34 deletions(-) -- 1.8.3.1