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Added zero write detection to system disk configuration

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Writing zeroes to the free space on a virtual disk (to later shrink the image) causes the disk image file to expand to its maximum size. Adding "detect-zeroes=on" converts these to sparse writes for unallocated parts of the disk.
This commit is contained in:
Chase Covello 2022-03-11 11:09:18 -08:00
parent 6cea15885b
commit 60d2c41e49
1 changed files with 3 additions and 3 deletions
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@ -968,16 +968,16 @@ function vm_boot() {
# shellcheck disable=SC2054,SC2206
args+=(-device ${MAC_DISK_DEV},drive=SystemDisk
-drive id=SystemDisk,if=none,format=qcow2,file="${disk_img}" ${STATUS_QUO})
-drive id=SystemDisk,if=none,format=qcow2,detect-zeroes=on,file="${disk_img}" ${STATUS_QUO})
elif [ "${guest_os}" == "kolibrios" ]; then
# shellcheck disable=SC2054,SC2206
args+=(-device ahci,id=ahci
-device ide-hd,bus=ahci.0,drive=SystemDisk
-drive id=SystemDisk,if=none,format=qcow2,file="${disk_img}" ${STATUS_QUO})
-drive id=SystemDisk,if=none,format=qcow2,detect-zeroes=on,file="${disk_img}" ${STATUS_QUO})
else
# shellcheck disable=SC2054,SC2206
args+=(-device virtio-blk-pci,drive=SystemDisk
-drive id=SystemDisk,if=none,format=qcow2,file="${disk_img}" ${STATUS_QUO})
-drive id=SystemDisk,if=none,format=qcow2,detect-zeroes=on,file="${disk_img}" ${STATUS_QUO})
fi
# https://wiki.qemu.org/Documentation/9psetup