Comment 7 for bug 1751830

Doing

  apt-get update && apt-get upgrade

Missing 9 of 38 files.

....

Get:36 http://old-releases.ubuntu.com/ubuntu yakkety-updates/main amd64 openssh-sftp-server amd64 1:7.3p1-1ubuntu0.1 [39.7 kB]
Get:37 http://old-releases.ubuntu.com/ubuntu yakkety-updates/main amd64 openssh-server amd64 1:7.3p1-1ubuntu0.1 [341 kB]
Get:38 http://old-releases.ubuntu.com/ubuntu yakkety-updates/main amd64 openssh-client amd64 1:7.3p1-1ubuntu0.1 [594 kB]
Fetched 16.9 MB in 2s (6908 kB/s)
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/bsdutils_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/util-linux_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/mount_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/z/zlib/zlib1g_1.2.8.dfsg-2ubuntu5.1_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/libuuid1_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/libblkid1_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/libmount1_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/libfdisk1_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found
E: Failed to fetch http://old-releases.ubuntu.com/ubuntu/pool/main/u/util-linux/libsmartcols1_2.28.2-1ubuntu1.2_amd64.deb 404 Not Found

I guess some other packages are missing. I can check whole yakkety and report all missing files.
Would that be helpful/needed?