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core: qemu-nbd 卸载镜像后需要等待一段时间

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bin456789 2024-02-03 10:41:45 +08:00
parent cfb7985deb
commit 133054e9d1
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1 changed files with 14 additions and 12 deletions
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26
trans.sh
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@ -270,11 +270,6 @@ extract_env_from_cmdline() {
done done
} }
qemu_nbd() {
command qemu-nbd "$@"
sleep 5
}
mod_motd() { mod_motd() {
# 安装后 alpine 后要恢复默认 # 安装后 alpine 后要恢复默认
# 自动安装失败后，可能手动安装 alpine，因此无需判断 $distro # 自动安装失败后，可能手动安装 alpine，因此无需判断 $distro
@ -306,7 +301,7 @@ umount_all() {
# 可能脚本不是首次运行，先清理之前的残留 # 可能脚本不是首次运行，先清理之前的残留
clear_previous() { clear_previous() {
qemu_nbd -d /dev/nbd0 2>/dev/null || true qemu-nbd -d /dev/nbd0 2>/dev/null || true
swapoff -a swapoff -a
umount_all umount_all
@ -1536,7 +1531,7 @@ install_qcow_el() {
} }
modprobe nbd nbds_max=1 modprobe nbd nbds_max=1
qemu_nbd -c /dev/nbd0 $qcow_file qemu-nbd -c /dev/nbd0 $qcow_file
# TODO: 改成循环mount找出os+fstab查找剩余分区？ # TODO: 改成循环mount找出os+fstab查找剩余分区？
os_part=$(lsblk /dev/nbd0p*[0-9] --sort SIZE -no NAME,FSTYPE | grep xfs | tail -1 | cut -d' ' -f1) os_part=$(lsblk /dev/nbd0p*[0-9] --sort SIZE -no NAME,FSTYPE | grep xfs | tail -1 | cut -d' ' -f1)
@ -1587,7 +1582,7 @@ install_qcow_el() {
# 取消挂载 nbd # 取消挂载 nbd
umount /nbd/ /nbd-boot/ /nbd-efi/ || true umount /nbd/ /nbd-boot/ /nbd-efi/ || true
qemu_nbd -d /dev/nbd0 qemu-nbd -d /dev/nbd0
# 如果镜像有efi分区，复制其uuid # 如果镜像有efi分区，复制其uuid
# 如果有相同uuid的fat分区，则无法挂载 # 如果有相同uuid的fat分区，则无法挂载
@ -1712,7 +1707,7 @@ EOF
dd_qcow() { dd_qcow() {
if true; then if true; then
modprobe nbd nbds_max=1 modprobe nbd nbds_max=1
qemu_nbd -c /dev/nbd0 $qcow_file qemu-nbd -c /dev/nbd0 $qcow_file
# 检查最后一个分区是否是 btrfs # 检查最后一个分区是否是 btrfs
# 即使awk结果为空，返回值也是0，加上 grep . 检查是否结果为空 # 即使awk结果为空，返回值也是0，加上 grep . 检查是否结果为空
@ -1742,11 +1737,11 @@ dd_qcow() {
printf "yes" | parted /dev/nbd0 resizepart $part_num ${part_end}B ---pretend-input-tty printf "yes" | parted /dev/nbd0 resizepart $part_num ${part_end}B ---pretend-input-tty
# 缩小 qcow2 # 缩小 qcow2
qemu_nbd -d /dev/nbd0 qemu-nbd -d /dev/nbd0
qemu-img resize --shrink $qcow_file $part_end qemu-img resize --shrink $qcow_file $part_end
# 重新连接 # 重新连接
qemu_nbd -c /dev/nbd0 $qcow_file qemu-nbd -c /dev/nbd0 $qcow_file
else else
umount /mnt/btrfs umount /mnt/btrfs
fi fi
@ -1778,13 +1773,20 @@ dd_qcow() {
;; ;;
esac esac
qemu_nbd -d /dev/nbd0 qemu-nbd -d /dev/nbd0
else else
# 将前1M dd到内存，将1M之后 dd到硬盘 # 将前1M dd到内存，将1M之后 dd到硬盘
qemu-img dd if=$qcow_file of=/first-1M bs=1M count=1 qemu-img dd if=$qcow_file of=/first-1M bs=1M count=1
qemu-img dd if=$qcow_file of=/dev/disk/by-label/os bs=1M skip=1 qemu-img dd if=$qcow_file of=/dev/disk/by-label/os bs=1M skip=1
fi fi
# 需要等待一下，不然会出现
# umount: /installer/: target is busy.
while fuser -sm /installer/; do
echo "Waiting for /installer/ to be unmounted..."
sleep 5
done
# 将前1M从内存 dd 到硬盘 # 将前1M从内存 dd 到硬盘
umount /installer/ umount /installer/
dd if=/first-1M of=/dev/$xda dd if=/first-1M of=/dev/$xda