Tag Archives: upgrade

Migrating from Synology DS415+ to DS916+

Today I migrated from a Synology DS415+ (upgraded to 8 GB myself) to a brand-new, unused Synology DS916+ (8 GB factory equipped.)

I followed the instructions given by Synology, but as my actual experience was considerably different (actually easier!) from what supposedly should have happened, I’m documenting them here for reference.

I started by upgrading the old unit to the latest DSM version, and then shutting it down. I moved all four hard drives to the new unit, making sure the same order of the drives in the drive bays was maintained.

I then switched on the new unit and launched the web UI in a browser. This is what I got:

synology-migration-01 Continue reading Migrating from Synology DS415+ to DS916+

Debian 6.0 to 7.0 upgrade issues…

I upgraded from Debian 6.0 (Squeeze) to Debian 7.0 (Wheezy) today. In general the upgrade was relatively painless, but as always some things went worse than they could… :-(

My local Subversion repository is using a Berkeley DB, and the underlying BDB version went up from 4.8 to 5.1. In consequence I got an error when I wanted to check in a changed config file:

svn: DB_VERSION_MISMATCH: Database environment version mismatch
svn: bdb: Program version 5.1 doesn't match environment version 4.8

I remember that this has already been an issue with the last major Debian upgrade… Did I miss something in the release notes or package doc, or did the Debian folks miss this one?!

Anyway, here’s how to repair the above (based on instructions found here). Install packages db4.8-util and db5.1-util and execute the following commands:

# cd /path/to/repo
# db4.8_checkpoint -1
# db4.8_recover
# db4.8_archive
log.0000000024
# svnlook youngest ..
746
# db5.1_archive -d

Afterwards you can remove the two packages again.

Next thing I noticed Continue reading Debian 6.0 to 7.0 upgrade issues…