[SOLVED] Fail to start VM

[satimis]

Hi all,

Host Ubuntu 20.04 desktop
VM Ubuntu 20.04 desktop

This VM has not be running for sometimes. Just started it with following warning popup;

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Failed to open a session for the virtual machine multisite00.

Could not open the medium '/home/satimis/VirtualBox VM/multisite00/multisite00/multisite00/multisite00-disk1.vdi'.

VD: error VERR_FILE_NOT_FOUND opening image file '/home/satimis/VirtualBox VM/multisite00/multisite00/multisite00/multisite00-disk1.vdi' (VERR_FILE_NOT_FOUND).

Result Code: NS_ERROR_FAILURE (0x80004005)
Component: MediumWrap
Interface: IMedium {ad47ad09-787b-44ab-b343-a082a3f2dfb1}

File manager shows multisite00-disk1.vdi is there. Right-click VM shows "Discard Saved State ..." already greyout.

Please help. Thanks

Regards

[mpack]

What's with the multiple nested "multisite00" folders?

Also, instead of an unsupported assertion, it would be nice to see a screenshot of the folder (with a visible path), showing that the file is there.

[satimis]

Hi,

$ ls /home/satimis/VirtualBox\ VM/multisite00

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multisite00

$ ls /home/satimis/VirtualBox\ VM/multisite00/multisite00/

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Logs  multisite00-disk1.vdi  multisite00.vbox  multisite00.vbox-prev

I wonder why there are 2 multisite00 folders. I suppose it is the cause of the problem ?

Can I move the files running drag-n-drop moving them to the 1st folder and then delete the double folder?

Thanks

Regards

[mpack]

I wonder why there are 2 multisite00 folders.

I count three in the error message. I would be looking for some kind of infinite loop scenario, e.g. a link that links to itself. I don't know Linux well enough to know if that's possible.

[satimis]

Performed following test;

On terminal ran
$ sudo mv /home/satimis/VirtualBox\ VM/multisite00/multisite00/* /home/satimis/VirtualBox\ VM/multisite00/

$ ls /home/satimis/VirtualBox\ VM/multisite00/

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Logs         multisite00-disk1.vdi  multisite00.vbox-prev
multisite00  multisite00.vbox

Unable to work. Please see attached screenshot

[fth0]

count three in the error message. I would be looking for some kind of infinite loop scenario, e.g. a link that links to itself. I don't know Linux well enough to know if that's possible.

Of course it's possible, and it's easy, too:

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mkdir test1
cd test1
ln -s . test2
cd test2/test2/test2
cd ../../..
rm test2
cd ..
rmdir test1

creates a folder named test1, and inside that folder a symbolic link to itself named test2. Afterwards, you can descend into it indefinitely.

I wonder why there are 2 multisite00 folders. I suppose it is the cause of the problem ?

Please provide the output of ls -lR /home/satimis/VirtualBox\ VM/multisite00.

[satimis]

I wonder why there are 2 multisite00 folders. I suppose it is the cause of the problem ?

Please provide the output of ls -lR /home/satimis/VirtualBox\ VM/multisite00.

$ ls -lR /home/satimis/VirtualBox\ VM/multisite00/

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'/home/satimis/VirtualBox VM/multisite00/':
total 14034152
drwx------ 2 satimis satimis        4096 Nov 21 19:29 Logs
drwx------ 2 satimis satimis        4096 Nov 21 23:03 multisite00
-rw------- 1 satimis satimis 14372831232 Sep 27 06:21 multisite00-disk1.vdi
-rw------- 1 satimis satimis        4286 Nov 21 19:29 multisite00.vbox
-rw------- 1 satimis satimis        4286 Nov 21 18:13 multisite00.vbox-prev

'/home/satimis/VirtualBox VM/multisite00/Logs':
total 16
-rw------- 1 satimis satimis 1979 Nov 21 19:29 VBox.log
-rw------- 1 satimis satimis 1980 Nov 21 18:13 VBox.log.1
-rw------- 1 satimis satimis 1980 Nov 21 18:06 VBox.log.2
-rw------- 1 satimis satimis 1979 Nov 21 14:49 VBox.log.3

'/home/satimis/VirtualBox VM/multisite00/multisite00':
total 0

Regards

[fth0]

Ok, then you have no symbolic links, and you can simply remove the superfluous folder with rmdir /home/satimis/VirtualBox\ VM/multisite00/multisite00.

[satimis]

Ok, then you have no symbolic links, and you can simply remove the superfluous folder with rmdir /home/satimis/VirtualBox\ VM/multisite00/multisite00.

$ sudo rmdir /home/satimis/VirtualBox\ VM/multisite00/multisite00

$ ls -al /home/satimis/VirtualBox\ VM/multisite00/

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total 14034156
drwx------  3 satimis satimis        4096 Nov 22 06:52 .
drwxrwxr-x 19 satimis satimis        4096 Sep 28 05:53 ..
drwx------  2 satimis satimis        4096 Nov 21 19:29 Logs
-rw-------  1 satimis satimis 14372831232 Sep 27 06:21 multisite00-disk1.vdi
-rw-------  1 satimis satimis        4286 Nov 21 19:29 multisite00.vbox
-rw-------  1 satimis satimis        4286 Nov 21 18:13 multisite00.vbox-prev

But on File Manager the inaccessible warning still popup as shown on the photo attached to my previous posting.

Regards

[scottgus1]

The error means that the file being errored on is not where Virtualbox is programmed to look for it.

This is where Virtualbox is looking:
'/home/satimis/VirtualBox VM/multisite00/multisite00/multisite00/multisite00-disk1.vdi'

This is where the file is:
/home/satimis/VirtualBox\ VM/multisite00/multisite00-disk1.vdi

Note the two extra multisite00's in the Virtualbox path.

You have to release and remove this disk file from your guest in the main Virtualbox window's Virtual Media Manager (but Keep it not Delete it), then add a disk, and browse to the guest folder where the disk file is now. Then your guest should work.

[satimis]

If I understand your advice correctly, take following steps on the main window of Oracle VM VirtualBox Manager;
1) Right-click "multisite00 VM" -> Remove
(this will remove "multisite00 VM" but not delete all files in its folder)
2) Then click -> "New" to add this VM "multisite00-disk1.vdi" from /home/satimis/VirtualBox\ VM/multisite00/ folder.

Please advise. Thanks

Regards

[scottgus1]

1) Right-click "multisite00 VM" -> Remove

No, I don't think you can remove whole VMs from the Virtual Media Manager, just disk files. See the main Virtualbox window's File menu, Virtual Media Manager. You want to remove the disk file, not the whole VM.

Then click -> "New"

This will probably start a new guest.
Rather, right-click the drive controller the disk was attached to before you released/removed it, click Hard Disk, in the popup click Add, then br9wse to the disk file.

[satimis]

1) Right-click "multisite00 VM" -> Remove

No, I don't think you can remove whole VMs from the Virtual Media Manager, just disk files. See the main Virtualbox window's File menu, Virtual Media Manager. You want to remove the disk file, not the whole VM.

Then click -> "New"

This will probably start a new guest.
Rather, right-click the drive controller the disk was attached to before you released/removed it, click Hard Disk, in the popup click Add, then br9wse to the disk file.

Before I ran following commands on Terminal to move the files and to delete the double folder multisite00

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$ sudo mv /home/satimis/VirtualBox\ VM/multisite00/multisite00/* /home/satimis/VirtualBox\ VM/multisite00/

$ sudo rmdir /home/satimis/VirtualBox\ VM/multisite00/multisite00

Where can I find "Hard Disk"

On Oracle VM VirtualBox Manager
High-lighting multisite00 VM only showing the warning. Please see attached photo

Regards

[fth0]

Perhaps we should look at the contents of two important files first:

Please reboot the host and post the global settings file (/home/satimis/.config/VirtualBox/VirtualBox.xml) and the VM configuration file (/home/satimis/VirtualBox\ VM/multisite00/multisite00.vbox).

[satimis]

Perhaps we should look at the contents of two important files first:

Please reboot the host and post the global settings file (/home/satimis/.config/VirtualBox/VirtualBox.xml) and the VM configuration file (/home/satimis/VirtualBox\ VM/multisite00/multisite00.vbox).

Rebooted PC

On Terminal Ran;

1)
$ ls -al /home/satimis/.config/VirtualBox/VirtualBox.xml

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-rw------- 1 satimis satimis 15379 Nov 22 13:01 /home/satimis/.config/VirtualBox/VirtualBox.xml

2)
ls -al /home/satimis/VirtualBox\ VM/multisite00/multisite00.vbox

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-rw------- 1 satimis satimis 4286 Nov 21 19:29 '/home/satimis/VirtualBox VM/multisite00/multisite00.vbox'