Hi minhui, Try to `$ export PACKER_LOG=1`, and then run it again to see more details.
I had a similar issue recently and was about qemu permissions. I was able to fix it by `sudo`, or by changing permission to /dev/kvm ` sudo chown <Replace with username> /dev/kvm` Kind regards, Chrysanthos Pepi From: minhui via gem5-users<mailto:[email protected]> Sent: Saturday, November 12, 2022 13:15 To: [email protected]<mailto:[email protected]> Cc: [email protected]<mailto:[email protected]> Subject: [gem5-users] "qemu: Error launching VM: Qenu failed to start" when using Packer to create a disk image and running Gem5 FS Sim Dear mentors(Jason, Ayaz, and others): I am new to Gem5, and currently studying the Tutorial “Tutorial: Run Full System Linux Boot Tests“ -I follow the instruction to place the files in both folder “shared“ and folder “boot-exit“ -run script “./packer validate boot-exit/boot-exit.json“, it was successful -but running script “./packer build boot-exit/boot-exit.json“ and failed -error message is “qemu: Error launching VM: Qemu failed to start. Please run with PACKER_LOG=1..“ failure snapshot below [cid:[email protected]] May I know what went wrong? how to fix it.? Note: I was using the original .json in the tutorial without change. thanks User: minhui
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