IBM Cloud VSI RHEL VMにGNOMEデスクトップインストール

# 目的
- IBM CloudのVSIでRHEL区画を作成するとminimalインストールのためGNOMEデスクトップが使えない
- ソフトウェアのインストーラ起動やlocalhostでのブラウザ起動のためGNOMEデスクトップを使用したい

# 導入手順
- GNOMEインストール
```
# dnf groupinstall GNOME 
```
- 日本語入力のインストール
```
# dnf install libkkc-data ibus-kkc
```
```出力例:出力例
[root@rhel-001 ~]# dnf install libkkc-data ibus-kkc
Updating Subscription Management repositories.
Last metadata expiration check: 1:39:47 ago on Wed 12 Apr 2023 08:39:16 PM EDT.
Dependencies resolved.
================================================================================
 Package     Arch   Version              Repository                        Size
================================================================================
Installing:
 ibus-kkc    x86_64 1.5.22-9.el8         rhel-8-for-x86_64-appstream-rpms  86 k
 libkkc-data x86_64 1:0.2.7-12.el8       rhel-8-for-x86_64-appstream-rpms  14 M
Installing dependencies:
 libgee      x86_64 0.20.1-1.el8         rhel-8-for-x86_64-appstream-rpms 284 k
 libkkc      x86_64 0.3.5-12.el8         rhel-8-for-x86_64-appstream-rpms 232 k
 libkkc-common
             noarch 0.3.5-12.el8         rhel-8-for-x86_64-appstream-rpms  67 k
 marisa      x86_64 0.2.4-36.el8         rhel-8-for-x86_64-appstream-rpms  86 k
 skkdic      noarch 20170102-4.T1100.el8 rhel-8-for-x86_64-appstream-rpms 7.4 M

Transaction Summary
================================================================================
Install  7 Packages

Total download size: 22 M
Installed size: 57 M
Is this ok [y/N]: y
Downloading Packages:
(1/7): ibus-kkc-1.5.22-9.el8.x86_64.rpm         195 kB/s |  86 kB     00:00
(2/7): marisa-0.2.4-36.el8.x86_64.rpm           178 kB/s |  86 kB     00:00
(3/7): libkkc-0.3.5-12.el8.x86_64.rpm           463 kB/s | 232 kB     00:00
(4/7): libgee-0.20.1-1.el8.x86_64.rpm           1.6 MB/s | 284 kB     00:00
(5/7): skkdic-20170102-4.T1100.el8.noarch.rpm    23 MB/s | 7.4 MB     00:00
(6/7): libkkc-data-0.2.7-12.el8.x86_64.rpm       33 MB/s |  14 MB     00:00
(7/7): libkkc-common-0.3.5-12.el8.noarch.rpm    259 kB/s |  67 kB     00:00
--------------------------------------------------------------------------------
Total                                            24 MB/s |  22 MB     00:00
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                        1/1
  Installing       : libgee-0.20.1-1.el8.x86_64                             1/7
  Installing       : libkkc-common-0.3.5-12.el8.noarch                      2/7
  Installing       : skkdic-20170102-4.T1100.el8.noarch                     3/7
  Installing       : libkkc-data-1:0.2.7-12.el8.x86_64                      4/7
  Installing       : marisa-0.2.4-36.el8.x86_64                             5/7
  Running scriptlet: marisa-0.2.4-36.el8.x86_64                             5/7
  Installing       : libkkc-0.3.5-12.el8.x86_64                             6/7
  Running scriptlet: libkkc-0.3.5-12.el8.x86_64                             6/7
  Installing       : ibus-kkc-1.5.22-9.el8.x86_64                           7/7
  Running scriptlet: ibus-kkc-1.5.22-9.el8.x86_64                           7/7
  Verifying        : ibus-kkc-1.5.22-9.el8.x86_64                           1/7
  Verifying        : libkkc-0.3.5-12.el8.x86_64                             2/7
  Verifying        : marisa-0.2.4-36.el8.x86_64                             3/7
  Verifying        : libkkc-data-1:0.2.7-12.el8.x86_64                      4/7
  Verifying        : skkdic-20170102-4.T1100.el8.noarch                     5/7
  Verifying        : libgee-0.20.1-1.el8.x86_64                             6/7
  Verifying        : libkkc-common-0.3.5-12.el8.noarch                      7/7
Installed products updated.

Installed:
  ibus-kkc-1.5.22-9.el8.x86_64            libgee-0.20.1-1.el8.x86_64
  libkkc-0.3.5-12.el8.x86_64              libkkc-common-0.3.5-12.el8.noarch
  libkkc-data-1:0.2.7-12.el8.x86_64       marisa-0.2.4-36.el8.x86_64
  skkdic-20170102-4.T1100.el8.noarch

Complete!
[root@rhel-001 ~]#
```

- 初期起動をデスクトップ環境に変更
```
# systemctl set-default graphical.target
```
```出力:出力例
[root@rhel-001 ~]# systemctl set-default graphical.target
Removed /etc/systemd/system/default.target.
Created symlink /etc/systemd/system/default.target → /usr/lib/systemd/system/graphical.target.
[root@rhel-001 ~]#
```
- 再起動
```
# reboot
```
- VNCコンソールを起動して確認
    - `アクション` -> `VNCコンソールを開く`
![1.jpg](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/93933/aff731ae-c1fb-78bd-9d63-40f765e455dc.jpeg)
- ログインしデスクトップが表示されれば成功
![2.jpg](https://qiita-image-store.s3.ap-northeast-1.amazonaws.com/0/93933/aecae112-4037-9ff3-9be2-21955fe02b77.jpeg)