Handle module aliases correctly to not generate unbootable initrds with different kernel versions when modules were renamed or replaced. Signed-off-by: Fabian Vogt <fvogt@xxxxxxxx> --- This is the case for mpt3sas -> mpt2sas migration in kernel 4.4, which caused issues like https://bugzilla.opensuse.org/show_bug.cgi?id=962694 dracut.sh | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/dracut.sh b/dracut.sh index 98dbe0b..ae8772b 100755 --- a/dracut.sh +++ b/dracut.sh @@ -1195,6 +1195,27 @@ if [[ $hostonly ]]; then while read m rest || [ -n "$m" ]; do host_modules["$m"]=1 done </proc/modules + + # Explanation of the following section: + # Since kernel 4.4, mpt3sas is a complete replacement for mpt2sas. + # mpt3sas has an alias to mpt2sas now, but since mpt3sas isn't loaded + # when generating the initrd from kernel < 4.4, it's not included. + # The other direction has the same issue: + # When generating the initrd from kernel >= 4.4, mpt2sas isn't loaded, + # so it's not included. + # Both ways result in an unbootable initrd. + + # also add aliases of loaded modules + for mod in "${!host_modules[@]}"; do + aliases=$(modinfo -F alias "$mod" 2>&1) + for alias in $aliases; do + host_modules["$alias"]=1 + done + # mod might be an alias in the target kernel, find the real module + mod_filename=$(modinfo -k "$kernel" "$mod" -F filename) + [ $? -ne 0 ] && continue + host_modules["$(basename -s .ko "$mod_filename")"]=1 + done fi unset m -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
