WorkingTipsOnUsingimgFileInDocker
Jan 26, 2024
Technology
准备Img文件:
$ wget https://mirrors.ustc.edu.cn/raspberry-pi-os-images/raspios_lite_arm64/images/raspios_lite_arm64-2023-12-11/2023-12-11-raspios-bookworm-arm64-lite.img.xz
$ unxz 2023-12-11-raspios-bookworm-arm64-lite.img.xz
$ ls
2023-12-11-raspios-bookworm-arm64-lite.img
以准备好的img文件设置loop挂载点, 而后检查挂载点:
$ sudo losetup -fP --show 2023-12-11-raspios-bookworm-arm64-lite.img
/dev/loop17
$ sudo fdisk -l /dev/loop17
Disk /dev/loop17: 2.55 GiB, 2738880512 bytes, 5349376 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x4e639091
Device Boot Start End Sectors Size Id Type
/dev/loop17p1 8192 1056767 1048576 512M c W95 FAT32 (LBA)
/dev/loop17p2 1056768 5349375 4292608 2G 83 Linux
将/dev/loop17p2分区挂载到/mnt9后，而后透传给容器:
$ sudo mount /dev/loop17p2 /mnt9/
$ sudo docker run -it -v /mnt9:/raspbian rockylinux:9 bash
在容器中检查/raspbian挂载点所在的位置，分区大小为2G:
[root@34e78094dace /]# df -h
Filesystem Size Used Avail Use% Mounted on
overlay 1.8T 1.5T 259G 86% /
tmpfs 64M 0 64M 0% /dev
shm 64M 0 64M 0% /dev/shm
/dev/loop17p2 2.0G 1.6G 330M 83% /raspbian
/dev/nvme0n1p2 1.8T 1.5T 259G 86% /etc/hosts
tmpfs 63G 0 63G 0% /proc/asound
tmpfs 63G 0 63G 0% /proc/acpi
tmpfs 63G 0 63G 0% /proc/scsi
tmpfs 63G 0 63G 0% /sys/firmware