虚空境界分享 http://blog.sciencenet.cn/u/depengchen 摄心神,致虚极,守静笃

博文

rhel7.0 usb安装过程中的问题及解决办法

已有 3585 次阅读 2015-2-12 23:31 |个人分类:Linux&Uinix|系统分类:科研笔记

RHEL7 USB installation problem and solving        

Encountered quite a few problems while install the RHEL7, with the Windows system already installed.

Problem 1:/dev/root does not exist

Downloaded the Redhat 7 ISO file and generate the bootable USB drive by using software 'rufus-1.4.9.exe'.

in the installation menu, press tab key, and enter to modify the install command, change the


“hd:……“ to "hd:/devsdb#"(from hd: until the end exact replace, sdb is the usb drive you have, maybe is sdc, or sdb, '#' normally is '1'), and then press enter, problem solved.

第一次进入安装菜单选项后,按下tab键,修改"hd:...."为“hd:/dev/sdb1 LABEL....”,这里sdb表示usb盘,1表示usb的第一个分区,常常usb只有一个分区。。当然,可能是sdc,或者sdd,取决于你的计算机中有几个物理硬盘。


如果启动时,快速按F8(对华硕主板),直接选择从usb优盘启动,就没有以上问题了。以上问题是在在efi中选择从USB优盘启动,就会出现这个,这是一个BUG。当然,如果是thinkpad笔记本,按键又不一样,自己在网上查一下。



Problem 2: cannot boot both system

modified the /boot/grub/grub.conf (for RHEL6), changed the (hd1,0) to (hd0,0), it is starting from 0, the value 1 comes from the USB drive bootable drive.


Problem 3, how to change the sequence on the in Grub of RHEL6

change the default from 0 to 1 in /boot/grub/grub.conf, 0 will be the linux at defalt, 1 will be windows be default.


Problem 4: only boot into RHEL7, cannot see the dual boot interface in Grub2.

Create the file and add the following

   /etc/grub.d/10_windows7     #! /bin/bash     echo "Adding Windows7 entry to grub"     cat << EOF     menuentry "Windows" {     set root=hd0(0,1)     chainloader +1      }     EOF

Adjust hd0(0,1) accordingly. You can use hd0(0,1) if windows is installed on /dev/sda1

2. chmod +x /etc/grub.d/10_windows7

3. grub2-mkconfig -o /boot/grub2/grub.cfg


Problem 5, change the boot priority in Grub2 of RHEL7

change the name of /etc/grub.d/10_windows7 to 09_windows7, 09 has lower number as linux file (in my Linux system it's 10_linux, change to 09 is smaller than 10), has higher priority.

then execute 'grub2-mkconfig -o /boot/grub2/grub.cfg', reboot, the system will default as Windows to boot.




https://wap.sciencenet.cn/blog-338872-867664.html

上一篇:rhel 7.0 系统,如果忘记了root用户密码
下一篇:gpu仿真,主要基于nvidia的fermi和gt200架构
收藏 IP: 175.0.170.*| 热度|

0

该博文允许注册用户评论 请点击登录 评论 (0 个评论)

数据加载中...

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2024-10-31 09:54

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部