brantje

Downgrade from DSM 6.0

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DISCLAIMER!

I’ll take no responsibility for any loss of data or any other problem caused by following this tutorial.

 

Reinstall DSM (eg 5.2-5644) without losing the data on Volume:

 

01. Enable SSH if it`s not & connect to SYNOLOGY

02. Open & edit the file \etc.defaults\VERSION

03. Exchange the data with one of previous ver.:

majorversion="5"
minorversion="2"
buildphase="0"
buildnumber="5592"
builddate="2012/12/05"

04. Save & Exit

05. Restart Synology

06. Launch Synology Assistant

07. Click 'Search'

08. If you've done everything correctly you'll see a new 'DiskStation' has been found.

09. Disconnect the USB flash drive from the computer for this next step

10. Right-click the new 'DiskStation' and choose 'Install'

11. Browse and select the same version (5.2-5644.pat) which U already running

12. Choose a Name for the DiskStation, a new default admin password and IP configuration

13. After installation is complete the DiskStation will reboot automatically.

14. Power it OFF manually now

15. Isert the same USB Flash drive (5.2-5644.img) back into PC

16. Power on PC & DSM will boot normally

17. In Synology Assistant click 'Search' again

18. Depending on the name and network config you chose during installation you will see now a DiskStation has been found with the NAME you chose.

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How do I get ssh access if it won't allow me to use my username and password, also admin and blank pass is not working?

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Thanks brantje for the info. Unfortunately for me I didn't have SSH originally enabled. I'm luckily back now(sort of), the only thing I seem to have lost are all my custom settings.

 

Here's what I did:

 

DSM6 chose fresh install - let this complete.

Once installed setup server with same name and user

Enabled SSH

Followed your steps for changing version file - the steps past this unfortunately did not work for me so I did the following:

 

Within DSM update and Restore I then chose the original pat file and installed this - worked fine

after above completed installed update 5 pat file

 

All good from now, all files intact, just need to make my customized changed now :sad:

 

Thanks again for pointing us in the right direction :smile: I feel relieved that the files are all still in place.

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I'm a noob at this and mine upgraded. So following your instructions and when i try to save the edits i get "VERSION" E212: Can't open file for writing

 

Any help would be great :smile:

 

EDIT: Sorted it. Forgot sudo -s

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E212 means:

For some reason the file you are writing to cannot be created or overwritten.

The reason could be that you do not have permission to write in the directory

or the file name is not valid.

 

 

 

Posted via Xpenology.us

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There was another way to Downgrade without lose your data & file. Only the missing is the package installer with other settings.

please take note must remember your default username and password with the host name.

 

If you complete upgrade the Ver 6.0 DSM. and your would like downgrade back Ver 5.2 due to HDD was not mounted into newest DSM 6.0

You may follow the step.

 

1. You will found your storage not mounted into system. [ DO NOT FORMAT THE STORAGE ]

2. Restart DSM Ver 6.0

3. Select the XPEnology DSM 5.2-5644.5 Install / Upgrade

4. After Launch the Synology Web Assist page for the Migration

5. Select Keep the data file for migrate

6. Manual Select the DSM 5.2-5644.PAT file. Which if you can remember installation of DSM Version you are using previously (my previous install under DSM 5.2-5644).

7.After complete install.

8.Enter the previous host name / username / password.

9.You will found the storage is appearing mount and the data file still there.

10. You may start backup before migrate to the new version. :grin::grin:

Edited by Guest

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Would it be possible to wait for a fix instead of downgrade ? I'm afraid for loosing all my data if I do anything wrong ?

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Maybe I have misunderstood something but do I loose my data if I downgrade after trying to update to 6.0 if I had all my disks mounted to my nas ?

 

 

Sent from my iPhone using Tapatalk

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Same problem here please some help!

Accidentally updated via configuration to DSM 6 (was 5.2.5644 update 5)

 

When I connect a monitor and keyboard to my xpenology machine now says diskstation login (used to be different DNS)

can not connect with own credentials or any password?

 

what to do? don't want to lose al my files

thanks in advance

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i-m not sure that i understand your guide

im pretty new to this and to use ssh is not my best job :grin:

when i have my us keyabors, network cable and the via to my screen i just get an black screen with some different choices, i can't see any dam installation ?

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Would it be possible to wait for a fix instead of downgrade ? I'm afraid for loosing all my data if I do anything wrong ?

 

The fix may not so fast release. Due to DSM 6.0 just newly launch.

DSM 6.0 cannot read the data of DSM 5.2 at the moment.

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Maybe I have misunderstood something but do I loose my data if I downgrade after trying to update to 6.0 if I had all my disks mounted to my nas ?

 

 

Sent from my iPhone using Tapatalk

 

At the moment do you saw your HDD in DSM6.0 ?

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Same problem here please some help!

Accidentally updated via configuration to DSM 6 (was 5.2.5644 update 5)

 

When I connect a monitor and keyboard to my xpenology machine now says diskstation login (used to be different DNS)

can not connect with own credentials or any password?

 

what to do? don't want to lose al my files

thanks in advance

 

If you not format the HDD. You will not lose your data file.

Only the package application or third party application will missing.

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i-m not sure that i understand your guide

im pretty new to this and to use ssh is not my best job :grin:

when i have my us keyabors, network cable and the via to my screen i just get an black screen with some different choices, i can't see any dam installation ?

 

 

What is the original version you use ?

 

After upgrade DSM 6.0 i still able chose the install and upgrade under ver DSM 5.2....... :grin:

IMG_20160326_081559.jpg

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Hey i had the 5644.5 before i update to 6.0

my dsm is in danish so to be sure i choose the right option in migration menu :grin:

do i have to choose option 1 or 2 ?

Edited by Guest

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Hey i had the 5644.5 before i update to 6.0

my dam is in danish so to be sure i choose the right option in migration menu :grin:

do i have to choose option 1 or 2 ?

 

The first one for me not able migrate due to version is low.

But the second one for me is good. After that reboot back to normal operation DSM 5.2 5644 and the data still there. :idea:

only the package application or third party application require reinstall....

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i have tried both option 1 and 2 with option 1 it just initialising and then come with an error 13 the file is broken (i use the file from xepenology.me)

with option 2 i start to formate, but after 10 % it stops and come with the same error

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i have tried both option 1 and 2 with option 1 it just initialising and then come with an error 13 the file is broken (i use the file from xepenology.me)

with option 2 i start to formate, but after 10 % it stops and come with the same error

 

 

What is the version PAT file you load ?

are your loaded with DSM 5.2 5644.5 ? it will cause error...

I'm loading the version.

 

IMG_20160328_004505.jpg

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Ok now i found y server and was logged in to DSM :grin:

But yet another problems is showing :grin:

DSM is telling me that there is a new update the update is update 5, last time this came i just installed it directly from dsm without problems, but now dsm tells me the file is broken what to do ?

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Not working for me...

 

1. Boot on Install/Upgrade mod

2. Connect via Telnet as user root and password from here

3. Modified the etc.default/VERSION file as in the first post.

4. Synology Assist is still detecting version 6!

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Ok now i found y server and was logged in to DSM :grin:

But yet another problems is showing :grin:

DSM is telling me that there is a new update the update is update 5, last time this came i just installed it directly from dsm without problems, but now dsm tells me the file is broken what to do ?

 

Are you able retrieve your data file ?

If the DSM tell you the file is broken. Did you mean the application package is broken ?

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Not working for me...

 

1. Boot on Install/Upgrade mod

2. Connect via Telnet as user root and password from here

3. Modified the etc.default/VERSION file as in the first post.

4. Synology Assist is still detecting version 6!

 

 

If you are using DSM 5.2-5644.5 to update the DSM 6.0. Make sure backup your file to external HDD.

Reason the after install DSM 6.0-7321 you HDD will become not mounted to DSM 6.0-7321.

 

Disadvantage Area Of DSM 6.0-7321

--------------------------------------------------

1. HDD will become not mounted into newest system (if you formatted the HDD cannot downgrade back to DSM 5.2-5644)

2. Quick Connect can't use will prompt the system failed to perform the requested operation, there is an unknown error. (Register)

3. Cannot format the HDD or SCSI or Hot Spare

 

:oops::!: For more information downgrade DSM 6.0-7321 to DSM 5.2-5644

Edited by Guest

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