USBメモリの初期化 の変更点

• 追加された行はこの色です。
• 削除された行はこの色です。
• USBメモリの初期化 へ行く。
• USBメモリの初期化 の差分を削除

#author("2019-09-26T13:41:04+09:00","default:honma","honma")
#author("2019-10-02T09:18:43+09:00","default:honma","honma")
* USBメモリの初期化 [#rb8d1ca1]

LinuxでUSBメモリを初期化する

** パーティショニング [#c5a56c0b]

 $ sudo gdisk /dev/sdb
 GPT fdisk (gdisk) version 0.8.8
 
 Partition table scan:
   MBR: protective
   BSD: not present
   APM: not present
   GPT: present
 
 Found valid GPT with protective MBR; using GPT.
 
 Command (? for help): o ... 新しい(GPT)パーティションテーブルを作成する
 This option deletes all partitions and creates a new protective MBR.
 Proceed? (Y/N): y
 
 Command (? for help): n ... 新しいパーティションを追加する
 Partition number (1-128, default 1):
 First sector (34-15618014, default = 2048) or {+-}size{KMGTP}:
 Last sector (2048-15618014, default = 15618014) or {+-}size{KMGTP}:
 Current type is 'Linux filesystem'
 Hex code or GUID (L to show codes, Enter = 8300):
 Changed type of partition to 'Linux filesystem'
 
 Command (? for help): w ... 書き込み
 
 Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
 PARTITIONS!!
 
 Do you want to proceed? (Y/N): y ... もちろんyes
 OK; writing new GUID partition table (GPT) to /dev/sdb.
 The operation has completed successfully.

** フォーマット [#b52d8164]
 # sudo mkfs.vfat -v -c -F 32 /dev/sdb1
 mkfs.fat 3.0.26 (2014-03-07)
 /dev/sdb1 has 246 heads and 62 sectors per track,
 hidden sectors 0x0800;
 logical sector size is 512,
 using 0xf8 media descriptor, with 15615967 sectors;
 drive number 0x80;
 filesystem has 2 32-bit FATs and 8 sectors per cluster.
 FAT size is 15221 sectors, and provides 1948186 clusters.
 There are 32 reserved sectors.
 Volume ID is f7750ba1, no volume label.
 Searching for bad blocks 173408... 343776... 512080... 続く

~
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