買い物、自重。なバイク乗りの日記

MBR パーティションから GPT パーティションに dump | restore を使わずにコピーする方法。
どちらもパーティション単位で dd if of すれば良い。

% gpart show ada2 ada2s1 ada3
=>      63  10485697  ada2  MBR  (5.0G)
        63  10485657     1  freebsd  [active]  (5.0G)
  10485720        40        - free -  (20K)

=>       0  10485657  ada2s1  BSD  (5.0G)
         0        16          - free -  (8.0K)
        16  10485641       4  freebsd-ufs  (5.0G)

=>      40  16777136  ada3  GPT  (8.0G)
        40  16777136     1  freebsd-ufs  (8.0G)

% gpart show -lp ada2 ada2s1 ada3
=>      63  10485697    ada2  MBR  (5.0G)
        63  10485657  ada2s1  (null)  [active]  (5.0G)
  10485720        40          - free -  (20K)

=>       0  10485657   ada2s1  BSD  (5.0G)
         0        16           - free -  (8.0K)
        16  10485641  ada2s1d  (null)  (5.0G)

=>      40  16777136    ada3  GPT  (8.0G)
        40  16777136  ada3p1  (null)  (8.0G)

% sudo mount -v /dev/ada2s1d /mnt
/dev/ada2s1d on /mnt (ufs, local, writes: sync 2 async 0, reads: sync 3 async 0, fsid a1f99c5d0a3d3046)

% df /mnt
Filesystem   1K-blocks  Used   Avail Capacity  Mounted on
/dev/ada2s1d   5061568 28072 4628572     1%    /mnt

% ll /mnt
total 28076
drwxrwxrwx   3 root     wheel     -      512 10月  9 06:04 ./
drwxr-xr-x  23 root     wheel     -      512 10月  8 23:22 ../
drwxrwxr-x   2 root     operator  -      512 10月  9 06:03 .snap/
-rwxr--r--   1 griffon  wheel     - 22475540 10月  9 06:04 kabe-gami.zip*
-rwxr--r--   1 griffon  wheel     -  6183181 10月  9 06:04 mikofuku_dd-dy_manual.pdf*

% sudo umount -v /mnt
/dev/ada2s1d: unmount from /mnt

% sudo dd if=/dev/ada2s1d of=/dev/ada3p1 bs=2M
2559+1 records in
2559+1 records out
5368648192 bytes transferred in 2.444914 secs (2195842973 bytes/sec)

% gpart show ada2 ada2s1 ada3
=>      63  10485697  ada2  MBR  (5.0G)
        63  10485657     1  freebsd  [active]  (5.0G)
  10485720        40        - free -  (20K)

=>       0  10485657  ada2s1  BSD  (5.0G)
         0        16          - free -  (8.0K)
        16  10485641       4  freebsd-ufs  (5.0G)

=>      40  16777136  ada3  GPT  (8.0G)
        40  16777136     1  freebsd-ufs  (8.0G)

% sudo mount -v /dev/ada3p1 /mnt
/dev/ada3p1 on /mnt (ufs, local, writes: sync 2 async 0, reads: sync 3 async 0, fsid a1f99c5d0a3d3046)

% df /mnt
Filesystem  1K-blocks  Used   Avail Capacity  Mounted on
/dev/ada3p1   5061568 28072 4628572     1%    /mnt

% ll /mnt
total 28076
drwxrwxrwx   3 root     wheel     -      512 10月  9 06:04 ./
drwxr-xr-x  23 root     wheel     -      512 10月  8 23:22 ../
drwxrwxr-x   2 root     operator  -      512 10月  9 06:03 .snap/
-rwxr--r--   1 griffon  wheel     - 22475540 10月  9 06:04 kabe-gami.zip*
-rwxr--r--   1 griffon  wheel     -  6183181 10月  9 06:04 mikofuku_dd-dy_manual.pdf*

% sudo umount -v /mnt
/dev/ada3p1: unmount from /mnt

5GB の MBR パーティションを 8GB の GPT パーティションにコピーしたら 5GB になっちゃったので広げましょう。
パーティション情報的には大きくなってるので growfs だけで事足りる

% gpart show ada3
=>      40  16777136  ada3  GPT  (8.0G)
        40  16777136     1  freebsd-ufs  (8.0G)

% sudo growfs -N /dev/ada3p1
super-block backups (for fsck_ffs -b #) at:
 11542656, 12825152, 14107648, 15390144, 16672640

% sudo growfs /dev/ada3p1
It's strongly recommended to make a backup before growing the file system.
OK to grow filesystem on /dev/ada3p1 from 5.0GB to 8.0GB? [yes/no] yes
super-block backups (for fsck_ffs -b #) at:
 11542656, 12825152, 14107648, 15390144, 16672640

% sudo mount -v /dev/ada3p1 /mnt
/dev/ada3p1 on /mnt (ufs, local, writes: sync 2 async 0, reads: sync 3 async 0, fsid a1f99c5d0a3d3046)

% df /mnt
Filesystem  1K-blocks  Used   Avail Capacity  Mounted on
/dev/ada3p1   8106676 28072 7430072     0%    /mnt

% ll /mnt
total 28076
drwxrwxrwx   3 root     wheel     -      512 10月  9 06:04 ./
drwxr-xr-x  23 root     wheel     -      512 10月  8 23:22 ../
drwxrwxr-x   2 root     operator  -      512 10月  9 06:03 .snap/
-rwxr--r--   1 griffon  wheel     - 22475540 10月  9 06:04 kabe-gami.zip*
-rwxr--r--   1 griffon  wheel     -  6183181 10月  9 06:04 mikofuku_dd-dy_manual.pdf*

% sudo umount -v /mnt
/dev/ada3p1: unmount from /mnt