If I add minio Version 20210805220119.0.0 to a private package repository, then aptitude succeeds on the first run. Press 'u' to update the Packages file. On the second run aptitude dies with SIGSEGV. After removing the cached Packages file listing minio & mcli aptitude works again. The SIGSEGV happens only for the cached Packages file, AFAICT. apt doesn't have this problem. The minio and mcli debian packages can be found on https://dl.min.io/server/minio/release/linux-amd64/minio_20210805220119.0.0_amd64.deb https://dl.min.io/client/mc/release/linux-amd64/mcli_20210727064619.0.0_amd64.deb Minio is on github: https://github.com/minio/minio Regards Harri