qemu-nbd freezes access to VDI file
Bug #1877418 reported by
Bump
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
QEMU |
Expired
|
Undecided
|
Unassigned | ||
btrfs-progs (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Mounted Oracle Virtualbox .vdi drive (dynamically allocated), which has GTP+BTRFS:
sudo modprobe nbd max_part=16
sudo qemu-nbd -c /dev/nbd0 /storage/btrfs.vdi
mount /dev/nbd0p1 /mydata/
Then I am operating on the btrfs filesystem and suddenly it freezes.
Changed in qemu: | |
status: | New → Incomplete |
Changed in btrfs-progs (Ubuntu): | |
status: | New → Incomplete |
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I don't recommend you use VDI images in this way; we do not intend to support performant RW access; support for VDI images is there to convert to qcow2 or raw, generally.
That said, some questions that might be interesting to know the answer to:
- Try converting your VDI image to raw or qcow2 and mounting that instead. Does the conversion work successfully? Can you export that image via qemu-nbd and mount it? Does it work?
- Do non-BTRFS filesystems cause any problems?