Install Linux, centos7;
[sdb] No Caching mode page found
[sdb] Assuming drive cache:write through
....
Could not boot
/dev/root does not exist
Then the command line is stuck here. Now you just need to wait patiently. After a while, the error warning will continue to scroll. At this time, continue to wait, and then the command line input interface will appear after a while. At this time, enter the following command:
ls / dev / sd *
After entering the command, all storage devices will be listed. At this time, the first hard disk is generally sda. If there are multiple partitions, then the order is sda1, sda2, etc. If there are two hard disks, it is sdb, and U disk is generally It is the last number in the row. If there is one hard disk, then the U disk is sdb. If there are two hard disks, then the U disk is sdc. Generally, the U disk has two options: sdc and sdc4, sdc belongs to U disk storage, and sdc4 is mirror image The partition is located, so there is generally no problem. If there is a problem, then configure it a few more times. Next, enter the command reboot to restart the computer. In the installation interface, do not select the installation first. At this time, press the e key, It will enter the editing interface, move the cursor to make the following modifications:
The default in the second line is: vmlinuz initrd=initrd.img inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 rd.live.check quiet
Change this line to: vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdc4:/quiet
[sdb] No Caching mode page found
[sdb] Assuming drive cache:write through
....
Could not boot
/dev/root does not exist
Then the command line is stuck here. Now you just need to wait patiently. After a while, the error warning will continue to scroll. At this time, continue to wait, and then the command line input interface will appear after a while. At this time, enter the following command:
ls / dev / sd *
After entering the command, all storage devices will be listed. At this time, the first hard disk is generally sda. If there are multiple partitions, then the order is sda1, sda2, etc. If there are two hard disks, it is sdb, and U disk is generally It is the last number in the row. If there is one hard disk, then the U disk is sdb. If there are two hard disks, then the U disk is sdc. Generally, the U disk has two options: sdc and sdc4, sdc belongs to U disk storage, and sdc4 is mirror image The partition is located, so there is generally no problem. If there is a problem, then configure it a few more times. Next, enter the command reboot to restart the computer. In the installation interface, do not select the installation first. At this time, press the e key, It will enter the editing interface, move the cursor to make the following modifications:
The default in the second line is: vmlinuz initrd=initrd.img inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 rd.live.check quiet
Change this line to: vmlinuz initrd=initrd.img inst.stage2=hd:/dev/sdc4:/quiet