Posts tagged "virtualization"
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VM Snapshots in qcontroller: Go Back to When Everything Worked
qcontroller can now snapshot a running VM and restore it later - RAM, devices, disk, everything. Here's why I wanted it, and the one change to disk attachment that made the implementation almost trivial.
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-hda vs virtio-blk: Match the Disk Bus to the Guest Image
qcontroller booted Ubuntu cloud images without problems, then broke on 26.04. The reason: the image switched to initrdless boot, and my -hda (SATA) disk no longer had a driver. Here's how I tracked it down.