atmark@atde9:~/work/xxx$ mount sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) udev on /dev type devtmpfs (rw,nosuid,relatime,size=1978916k,nr_inodes=494729,mode=755) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=401360k,mode=755) /dev/mapper/atde9--vg-root on / type ext4 (rw,relatime,errors=remount-ro) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k) cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot) pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=29,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=11557) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M) mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime) debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime) tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime) configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime) fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime) /dev/sda1 on /boot type ext2 (rw,relatime) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime) tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=401356k,nr_inodes=100339,mode=700,uid=1000,gid=1000) portal on /run/user/1000/doc type fuse.portal (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000) atmark@atde9:~/work/xxx$ sudo umount /dev/sdd1 umount: /dev/sdd1: not mounted. atmark@atde9:~/work/xxx$ sudo umount /dev/sdd umount: /dev/sdd: not mounted. atmark@atde9:~/work/xxx$ sudo fdisk /dev/sdd Welcome to fdisk (util-linux 2.36.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sdd: 14.87 GiB, 15962472448 bytes, 31176704 sectors Disk model: SD/MMC 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: gpt Disk identifier: 105C8654-ABED-4FD2-9B01-D11ACEF49DE0 Device Start End Sectors Size Type /dev/sdd1 2048 31174655 31172608 14.9G Microsoft basic data Command (m for help): d Selected partition 1 Partition 1 has been deleted. Command (m for help): p Disk /dev/sdd: 14.87 GiB, 15962472448 bytes, 31176704 sectors Disk model: SD/MMC 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: gpt Disk identifier: 105C8654-ABED-4FD2-9B01-D11ACEF49DE0 Command (m for help): n Partition number (1-128, default 1): First sector (34-31176670, default 2048): Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-31176670, default 31176670): Created a new partition 1 of type 'Linux filesystem' and of size 14.9 GiB. Command (m for help): p Disk /dev/sdd: 14.87 GiB, 15962472448 bytes, 31176704 sectors Disk model: SD/MMC 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: gpt Disk identifier: 105C8654-ABED-4FD2-9B01-D11ACEF49DE0 Device Start End Sectors Size Type /dev/sdd1 2048 31176670 31174623 14.9G Linux filesystem Command (m for help): w The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. atmark@atde9:~/work/xxx$ mount sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime) proc on /proc type proc (rw,nosuid,nodev,noexec,relatime) udev on /dev type devtmpfs (rw,nosuid,relatime,size=1978916k,nr_inodes=494729,mode=755) devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000) tmpfs on /run type tmpfs (rw,nosuid,nodev,noexec,relatime,size=401360k,mode=755) /dev/mapper/atde9--vg-root on / type ext4 (rw,relatime,errors=remount-ro) securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime) tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev) tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k) cgroup2 on /sys/fs/cgroup type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate,memory_recursiveprot) pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime) none on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700) systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=29,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=11557) hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M) mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime) debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime) tracefs on /sys/kernel/tracing type tracefs (rw,nosuid,nodev,noexec,relatime) configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime) fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime) /dev/sda1 on /boot type ext2 (rw,relatime) binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,nosuid,nodev,noexec,relatime) tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=401356k,nr_inodes=100339,mode=700,uid=1000,gid=1000) portal on /run/user/1000/doc type fuse.portal (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000) atmark@atde9:~/work/xxx$ sudo mkfs -t ext2 -L bootsd /dev/sdd1 mke2fs 1.46.2 (28-Feb-2021) Creating filesystem with 3896827 4k blocks and 974848 inodes Filesystem UUID: cf1c9aea-d2fe-4241-aea9-ce8626734830 Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208 Allocating group tables: done Writing inode tables: done Writing superblocks and filesystem accounting information: done atmark@atde9:~/work/xxx$ sudo fdisk /dev/sdd Welcome to fdisk (util-linux 2.36.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command. Command (m for help): p Disk /dev/sdd: 14.87 GiB, 15962472448 bytes, 31176704 sectors Disk model: SD/MMC 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: gpt Disk identifier: 105C8654-ABED-4FD2-9B01-D11ACEF49DE0 Device Start End Sectors Size Type /dev/sdd1 2048 31176670 31174623 14.9G Linux filesystem Command (m for help): w The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks. atmark@atde9:~/work/xxx$ unzip baseos-600-installer-3.18.5-at.8.zip Archive: baseos-600-installer-3.18.5-at.8.zip inflating: baseos-600-installer-3.18.5-at.8.img inflating: baseos-600-installer-3.18.5-at.8.img.sig inflating: baseos-600-installer-3.18.5-at.8.img.spdx.json atmark@atde9:~/work/xxx$ sudo dd if=baseos-600-installer-3.18.5-at.8.img \ > of=/dev/sdd bs=1M oflag=direct status=progress 432013312 bytes (432 MB, 412 MiB) copied, 113 s, 3.8 MB/s 415+0 レコード入力 415+0 レコード出力 435159040 bytes (435 MB, 415 MiB) copied, 113.597 s, 3.8 MB/s atmark@atde9:~/work/xxx$