Opened 11 years ago
Closed 8 years ago
#12161 closed defect (fixed)
EFI boot very slow with Serial Port enabled => fixed in SVN/next maintenance
| Reported by: | AxelFontaine | Owned by: | |
|---|---|---|---|
| Component: | EFI | Version: | VirtualBox 4.2.18 |
| Keywords: | Cc: | ||
| Guest type: | Linux | Host type: | Windows |
Description
When booting a VM using EFI with a serial port mapped to a file, the VM spends more than 10 seconds in EFI before booting the kernel. During this time a lot of output is written to the serial port file.
With the serial port disabled, the same VM boots the kernel after less than 1 second.
Attachments (3)
Change History (6)
by , 11 years ago
| Attachment: | efi-boot-without-serialport-vbox.log added |
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by , 11 years ago
| Attachment: | efi-boot-with-serialport-com1.log added |
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by , 11 years ago
| Attachment: | efi-boot-with-serialport-vbox.log added |
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comment:2 by , 8 years ago
| Summary: | EFI boot very slow with Serial Port enabled → EFI boot very slow with Serial Port enabled => fixed in SVN/next maintenance |
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Sorry for the very late response but I just stumbled over your ticket. The issue is still true with the current VirtualBox release but will be fixed in the next maintenance release. Thanks for the report!
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More testing completed.
This problem is Windows-only. It works fine on Mac & Linux.
It also has gotten worse with recent releases. The boot now takes even longer.