Server 2.3.6/Client 2.3.3

Major changes with server 2.3.x beta

  • Use reflinks on file systems that do not have snapshot/subvolume support (XFS and ReFS v3)
  • Run backup storage checks asynchronously from status screen
  • Allow client renames in some cases
  • Preparations for special Hyper-V client with disk images instead of volume images
  • Allow client to restore its own image backups (image restore with normal client)

Changes with server 2.3.6

  • Disabled assertions
  • Retry updating client settings infinitely on failure while the client is online
  • Make client update download more robust
  • Set e flag in popen on Linux to open the pipe with O_CLOEXEC

Changes with server 2.3.5 beta

  • Linux build changes: Option to build with non-embedded sqlite3, lua and lmdb
  • Fix a missed crypto++ byte occurrence
  • Updated crypto++, lua, sqlite3 to newest version
  • Changed embedded crypto++ build to use unofficial configure recursively
  • Update filesystem configuration after backupfolder is changed
  • Fix C++ ODR build issue
  • Restore selected directory instead of only directory contents when starting restore via command line
  • Exponentially backed off reauthentication if channel has error
  • Option to send alerts regularly
  • Do not use O_NOATIME/FILE_FLAG_BACKUP_SEMANTICS on server to open files
  • Add tclap to about page and license files
  • Release session when doing access dir checks
  • Fix cleanup of hyper-v images
  • Set uid to 0 for zfs operations so maybe ZFS works with non-root users on Linux now

Changes with server 2.3.4 beta

  • Reflink support with ReFS v3 (Windows Server 2016 and 2019)
  • Raw image support on Windows (if reflinks are available, see above)

Changes with server 2.3.3 beta

  • Fix incremental chain handling when deleting images

Changes with server 2.3.2 beta

  • Load all lua modules per default
  • Do not strip debug information (line numbers) when compiling lua script
  • Comment to disable lua code compilation

Changes with server 2.3.1 beta

  • Functionality to log file changes in incremental image backups
  • Seek to correct position in source file before sending when resuming image restore
  • Return error correctly when server runs out of space during file backup in a corner case
  • Only use CURLOPT_EXPECT_100_TIMEOUT_MS if curl version is high enough
  • Fix Crypto++ 6.0 byte compile issue
  • Prevent cleanup from deleting incremental image chains that cause number of incremental images to fall below min_incr_image (in testing)

Changes with server 2.3.0 beta

  • Improve space accounting if reflinking is replaced by copying
  • Alert/status fixes
  • Set json content type when returning json in web interface
  • Stop parallel hash download thread in all cases
  • Parallel file hashing fixes
  • Add Pulseway alert script (mainly as an example)
  • Improve out of space error handling
  • Log login attempts where username does not exist as failed login attempts
  • Fix settings threading issue
  • Log failed client authentications into auth log (Linux)

Changes with client 2.3.3

  • Build without assertions
  • Fix version check during update and disable it for now (client update might not work from pervious 2.3.x client versions)
  • Set e flag on Linux in popen to open the pipe with O_CLOEXEC

Changes with client 2.3.2 beta

  • Set FSCTL_ALLOW_EXTENDED_DASD_IO on volume handle to be able to read last sector
  • Clarify keep option in command line client
  • Embed version into update file and check if it is actually larger on update
  • Don’t use RequestUserAttention on Linux because it segfaults

Changes with client 2.3.1 beta

  • Fix permission translation for Linux and macOS

Changes with client 2.3.0 beta

  • Retry llistxattr with a multiple of the required memory if it fails
  • Cooperate CBT with multiple running clients
  • Don’t show restore components option if components never have been backed up
  • Fix change indicator of open files such that the symbolic link detection works for them
  • Read USNs of symbolic links and directories on Windows instead of last modified time to detect directory metadata changes
  • Fix file permission translation on Linux/MacOS
  • Fix Crypto++ 6.0 byte compile issue
  • Handle reparse tag IO_REPARSE_TAG_APPEXECLINK on Windows
  • Backup VeraCrypt boot loader
  • Improve log message if indexing is interrupted

Changes with Restore CD 2.2.2 beta

  • Fix GPT restore with restore disk being (slightly) smaller

Changes with Restore CD 2.2.1 beta

  • Restore whole disks (created with Hyper-V client)
  • Continuously track image download progress for resume
  • Restore VeraCrypt boot loader

Changes with Restore CD 2.2.0 beta

  • Bugfix: In some cases the restore did not continue at the most recent position when it had to reconnect to the server
  • Build with default Debian stretch live-build and not the accumulation of patches, fixes and manual changes I had beforehand

Upgrade process

As always: Replace the executables (via the installers) and the database of the server/client will be updated on first running it.

Place the files from the update directory into C:\Program Files\UrBackupServer\urbackup or /var/urbackup to auto-update clients. Disable Download client from update server in the server settings to prevent the server from downloading the current version.

On Linux e.g. with this update script:

Downgrade process (server)

Stop the UrBackup server, restore C:\Program Files\UrBackupServer\urbackup or /var/urbackup from a backup before upgrade and then install the previous version over the beta release.



What is this ?

  • Run backup storage checks asynchronously from status screen

i thought it was an asyncronous remove unknown

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