在虚拟机下安装Red Hat Enterprise Linux 6.1时，如果内存为512M或更小时，安装过程会提示内存太小，无法启用图形界面。这样，就只能是最小化安装。装好后，，怎样安装桌面呢。
一、配置yum库
1.挂载镜像
[root@RedHat ~]#mkdir /media/rhel
[root@redhat ~]#mount -o loop /dev/sr0 /media/rhel
2.使镜像能开机自动挂载
在/etc/fstab的最下面添加下面一句
[root@redhat ~]#vi /etc/fstab
/dev/sr0 /media/rhel iso9660 ro,loop 0 0
3.新建一个本地repo文件
紫色的部分可以不要添加，只要黑体那部分就行了。
[root@redhat ~]#vi /etc/yum.repos.d/local.repo
[Server]name=Serverbaseurl=file:///media/rhel/Serverenabled=1gpgcheck=0
[HighAvailability]name=HighAvailabilitybaseurl=file:///media/rhel/HighAvailabilityenabled=1gpgcheck=0
[LoadBalancer]name=LoadBalancerbaseurl=file:///media/rhel/LoadBalancerenabled=1gpgcheck=0
二、安装桌面
1.检查软件组
查看一下桌面在哪个软件组里
[root@redhat ~]#yum grouplistLoaded plugins: refresh-packagekitSetting up Group ProcessHighAvailability/group_gz | 4.0 kB 00:00 … LoadBalancer/group_gz | 2.1 kB 00:00 … Installed Groups: Additional Development Base Console internet tools Desktop Desktop Debugging and Performance Tools Dial-up Networking Support E-mail server FCoE Storage Client FTP server Fonts General Purpose Desktop Graphical Administration Tools Hardware monitoring utilities Input Methods Legacy UNIX compatibility Legacy X Window System compatibility NFS file server Network Infrastructure Server Network file system client Networking Tools Performance Tools Perl Support Remote Desktop Clients Security Tools Smart card support Storage Availability Tools System administration tools X Window System iSCSI Storage ClientInstalled Language Groups: Arabic Support [ar] Armenian Support [hy] Assamese Support [as] Bengali Support [bn] Bhutanese Support [dz] Chinese Support [zh] Ethiopic Support [am] Georgian Support [ka] Gujarati Support [gu] Hebrew Support [he] Hindi Support [hi] Inuktitut Support [iu] Japanese Support [ja] Kannada Support [kn] Khmer Support [km] Konkani Support [kok] Korean Support [ko] Kurdish Support [ku] Lao Support [lo] Maithili Support [mai] Malayalam Support [ml] Marathi Support [mr] Myanmar (Burmese) Support [my] Oriya Support [or] Punjabi Support [pa] Sinhala Support [si] Tajik Support [tg] Tamil Support [ta] Telugu Support [te] Thai Support [th] Urdu Support [ur] Venda Support [ve]Available Groups: Backup Client Backup Server CIFS file server Client management tools Compatibility libraries Debugging Tools Desktop Platform Desktop Platform Development Development tools Directory Client Directory Server Eclipse Emacs Enterprise Identity Server Base Graphics Creation Tools High Availability High Availability Management Infiniband Support Internet Browser Java Platform KDE Desktop Large Systems Performance Load Balancer Mainframe Access Messaging Client Support MySQL Database client MySQL Database server Network Storage Server PHP Support PostgreSQL Database client PostgreSQL Database server Print Server Printing client SNMP Support Scientific support Server Platform Server Platform Development Somali Support System Management Systems Management Messaging Server support TeX support Technical Writing TurboGears application framework Virtualization Virtualization Client Virtualization Platform Virtualization Tools Web Server Web Servlet Engine Web-Based Enterprise ManagementAvailable Language Groups: Afrikaans Support [af] Albanian Support [sq] Amazigh Support [ber] Azerbaijani Support [az] Basque Support [eu] Belarusian Support [be] Brazilian Portuguese Support [pt_BR] Breton Support [br] Bulgarian Support [bg] Catalan Support [ca] Chhattisgarhi Support [hne] Chichewa Support [ny] Coptic Support [cop] Croatian Support [hr] Czech Support [cs] Danish Support [da] Dutch Support [nl] English (UK) Support [en_GB] Esperanto Support [eo] Estonian Support [et] Faroese Support [fo] Fijian Support [fj] Filipino Support [fil] Finnish Support [fi] French Support [fr] Frisian Support [fy] Friulian Support [fur] Gaelic Support [gd] Galician Support [gl] German Support [de] Greek Support [el] Hiligaynon Support [hil] Hungarian Support [hu] Icelandic Support [is] Indonesian Support [id] Interlingua Support [ia] Irish Support [ga] Italian Support [it] Kashmiri Support [ks] Kashubian Support [csb] Kazakh Support [kk] Kinyarwanda Support [rw] Latin Support [la] Latvian Support [lv] Lithuanian Support [lt] Low Saxon Support [nds] Luxembourgish Support [lb] Macedonian Support [mk] Malagasy Support [mg] Malay Support [ms] Maltese Support [mt] Manx Support [gv] Maori Support [mi] Mongolian Support [mn] Nepali Support [ne] Northern Sotho Support [nso] Norwegian Support [nb] Occitan Support [oc] Persian Support [fa] Polish Support [pl] Portuguese Support [pt] Romanian Support [ro] Russian Support [ru] Sanskrit Support [sa] Sardinian Support [sc] Serbian Support [sr] Sindhi Support [sd] Slovak Support [sk] Slovenian Support [sl] Southern Ndebele Support [nr] Southern Sotho Support [st] Spanish Support [es] Swahili Support [sw] Swati Support [ss] Swedish Support [sv] Tagalog Support [tl] Tetum Support [tet] Tibetan Support [bo] Tsonga Support [ts] Tswana Support [tn] Turkish Support [tr] Turkmen Support [tk] Ukrainian Support [uk] Upper Sorbian Support [hsb] Uzbek Support [uz] Vietnamese Support [vi] Walloon Support [wa] Welsh Support [cy] Xhosa Support [xh] Zulu Support [zu]Done
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