Ubuntu 18.04でsbtが動かない問題(というか結果的にRocket-Chipが動かない問題)を何とかする

Ubuntuが18.04 LTSになって、さっそくバージョンアップしてRISC-Vの環境を構築しようとしたのだけれども問題にぶち当たった。

RISCV-Toolsは以下のエントリでインストールの試行はしていたし、うまく行くことは確認していたのだけれども、Rocket-Chipの試行はしていなかったので実行してみた。

msyksphinz.hatenablog.com

Ubuntu 18.04 LTSをインストールしたままで実行すると、以下のようなエラーでsbtがダウンロード出来ない。

$ make CONFIG=DefaultConfig
make -C /home/msyksphinz/work/rocket-chip-msyksphinz/firrtl SBT="java -Xmx2G -Xss8M -XX:MaxPermSize=256M -jar /home/msyksphinz/work/rocket-chip-msyksphinz/sbt-launch.jar" root_dir=/home/msyksphinz/work/rocket-chip-msyksphinz/firrtl build-scala
make[1]: Entering directory '/home/msyksphinz/work/rocket-chip-msyksphinz/firrtl'
java -Xmx2G -Xss8M -XX:MaxPermSize=256M -jar /home/msyksphinz/work/rocket-chip-msyksphinz/sbt-launch.jar "assembly"
OpenJDK 64-Bit Server VM warning: Ignoring option MaxPermSize; support was removed in 8.0
Getting org.scala-sbt sbt 1.1.1  (this may take some time)...

:: problems summary ::
:::: WARNINGS
                module not found: org.scala-sbt#sbt;1.1.1

        ==== local: tried

          /home/msyksphinz/.ivy2/local/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

          -- artifact org.scala-sbt#sbt;1.1.1!sbt.jar:

          /home/msyksphinz/.ivy2/local/org.scala-sbt/sbt/1.1.1/jars/sbt.jar

        ==== local-preloaded-ivy: tried

          file:////home/msyksphinz/.sbt/preloaded/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

        ==== local-preloaded: tried

          file:////home/msyksphinz/.sbt/preloaded/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

          -- artifact org.scala-sbt#sbt;1.1.1!sbt.jar:

          file:////home/msyksphinz/.sbt/preloaded/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        ==== Maven Central: tried

          https://repo1.maven.org/maven2/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

          -- artifact org.scala-sbt#sbt;1.1.1!sbt.jar:

          https://repo1.maven.org/maven2/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        ==== sbt-maven-releases: tried

          https://repo.scala-sbt.org/scalasbt/maven-releases/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

          -- artifact org.scala-sbt#sbt;1.1.1!sbt.jar:

          https://repo.scala-sbt.org/scalasbt/maven-releases/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        ==== sbt-maven-snapshots: tried

          https://repo.scala-sbt.org/scalasbt/maven-snapshots/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

          -- artifact org.scala-sbt#sbt;1.1.1!sbt.jar:

          https://repo.scala-sbt.org/scalasbt/maven-snapshots/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        ==== typesafe-ivy-releases: tried

          https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

        ==== sbt-ivy-snapshots: tried

          https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

                ::::::::::::::::::::::::::::::::::::::::::::::

                ::          UNRESOLVED DEPENDENCIES         ::

                ::::::::::::::::::::::::::::::::::::::::::::::

                :: org.scala-sbt#sbt;1.1.1: not found

                ::::::::::::::::::::::::::::::::::::::::::::::


:::: ERRORS
        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo1.maven.org/maven2/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo1.maven.org/maven2/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.scala-sbt.org/scalasbt/maven-releases/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.scala-sbt.org/scalasbt/maven-releases/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.scala-sbt.org/scalasbt/maven-snapshots/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.pom

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.scala-sbt.org/scalasbt/maven-snapshots/org/scala-sbt/sbt/1.1.1/sbt-1.1.1.jar

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

        Server access Error: java.lang.RuntimeException: Unexpected error: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty url=https://repo.scala-sbt.org/scalasbt/ivy-snapshots/org.scala-sbt/sbt/1.1.1/ivys/ivy.xml

GitHubのIssueでも聞いてみた。その結果sbtの問題であることが分かり、リンク先をたどっていた結果以下のページに到達。

git.mikael.io

つまり、SuperUserで以下の2行を実行する。

/usr/bin/printf '\xfe\xed\xfe\xed\x00\x00\x00\x02\x00\x00\x00\x00\xe2\x68\x6e\x45\xfb\x43\xdf\xa4\xd9\x92\xdd\x41\xce\xb6\xb2\x1c\x63\x30\xd7\x92' > /etc/ssl/certs/java/cacerts
/var/lib/dpkg/info/ca-certificates-java.postinst configure

これで再びRocket-Chipのビルドを実行する。これでうまく行くことが確認できた。