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Dell Wyse ThinLinux 1.0.3 Administrator’s Guide

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Merlin Imaging from file server without WDM

To create and use merlin.rsp and merlin.img files to perform merlin imaging on device from FileServer, complete the following tasks:
  1. Extract and copy Merlin image rsp and contents on any FileServer location, for example, 1.0.3_5060_merlin.rsp and bios.img, commandsXml.xml, part1Image1.img, part1Image2.img
  2. Rename the RSP file which is available in Merlin Image folder, for example, from 1.0.3_5060_merlin.rsp to merlin.rsp.
  3. Create tar file with merlin image contents, bios.img, commandsXml.xml, part1Image1.img, part1Image2.img, for example, merlin.tar.
  4. Gzip the above tar file, for example, merlin.tar.gz
  5. Rename the zip file to merlin.img.
  6. Copy both merlin.rsp and merlin.img files in FTP path under $PLATFORM sub-directory. Merlin imaging is platform dependent so put the image under the correct <PLATFORM> subfolder.
  7. Provide this path as value for MerlinUpdate.URL parameter in INI file, and if needed provide credentials for FTP server using MerlinUpdate.Username and MerlinUpdate.Password parameters and restart TC, for example, if device model is Wyse 5060 thin client then copy the image and rsp file under ftp://<IP>/<directory>/5060/ folder but mention URL as ftp://<IP>/<directory>/. The Macro $PLATFORM is automatically appended.
    • NOTE: Merlin imaging through FileServer works only when you provide URL using INI parameters; if you provide the same values in Update Settings page, the imaging does not work.
    After restart, Merlin image is downloaded through Delayed Update. A notification is displayed after Merlin image ready. The Merlin imaging takes place after restart. Merlin image is not downloaded, if Delayed Update is disabled.
Notes and Limitations :
  • If the image version on TC and Merlin image version on FTP server are the same, then imaging does not take place.
  • Downgrading is always allowed for Merlin image. There is no force imaging for Merlin.
  • Changes are not preserved after Merlin imaging.
  • If both raw and Merlin images are available at specified URL, Merlin image upgrading has higher priority.

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