Newbie Problem- Can You help me? ERROR_NO_SUCH_DEVICE: A device which does not exist was specified.

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Posts: 2
Joined: 26 Jan 2025

Limpopoboy

Hi Guys

Just downloaded and set up the system
From internal HD to external HD > mirror

Problem I get this message
ERROR_NO_SUCH_DEVICE: A device which does not exist was specified.

Things were working for about 30 minutes then this message with an error. I marked ignore then the next and the next. 1000's of errors came up and if ignored all the backup was finished?

Some folders and files were copied but 96% of them were not as it gave a 4% completion.

Hopefully, somebody can point me in the right direction to sort out this issue out

Thanks in advance
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Posts: 4195
Joined: 11 Jun 2019

xCSxXenon

Sounds like one of your drives dropped out/connection. Could be failing, could be the power cable, could be the data cable, could be many things
Posts: 2
Joined: 26 Jan 2025

Limpopoboy

Thanks for the reply. It's a brand-new drive (external) and it worked well for about 30 mins. then this issue. It's had no problem with other programs backing up. Like EaseUS Todo Back up. It backed up with no problem so I find it hard to believe it's the drive dropping out. Could it be something else?
Posts: 1066
Joined: 8 May 2006

therube

It's had no problem with other programs backing up.
Did you (content) verify that other backups backed up correctly.
(At least on a sampling of files.)

ERROR_NO_SUCH_DEVICE
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Posts: 4195
Joined: 11 Jun 2019

xCSxXenon

It could be the internal drive as well. The error is specifically saying the location doesn't exist, so the only option is that something in the chain is failing, usually hardware with such an error