When and how to enter umount -l /isodevice- Community

When and how to enter umount -l /isodevice

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stayhuman

deepin

2016-01-25 00:21

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Trying to install Deepin 15. When I reach the partition screen, one of the partitions is in use. so I cannot change the partitions if I use the expert mode and if I use the simple mode the installation fails.

I have read that I need to enter "sudo umount -l /isodevice." It would seem that I would have to enter this before the installation begins, but when exactly? And how do I get a command line to enter it into?

Currently I am running Fedora 23 and I want to do a fresh install so that I only have Deepin.

Thanks in advance for any and all help,

Jon

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dance707

deepin

2016-01-25 00:36

If you did a standard fedora install it probable was lvm partition and those are kind of locked. Sounds to me like you need to delete the partitions first before installing Deepin 15 Should not have to umount iso device.

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dance707

deepin

2016-01-25 00:43

I often use Gparted to delete lvm partitions and format the drive.

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stayhuman

deepin

2016-01-26 20:17

Thanks for the help!

Here's what I ended up doing:

I chose "Deepin Failsafe" which, to my surprise, opened up to a live version of deepin. From this I used gparted to delete all the partitions. This took a few tries, but eventually worked.

On the first try to install, I used the advanced method and created my own partitions. After the "installation successful" screen, when I tried to reboot, I got the message that there was no boot disc found and that was that.

So I tried again, using the simple method. The result was the same, no boot disc found.

Where did I go wrong?

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dance707

deepin

2016-01-26 20:28

https://bbs.deepin.org/post/30626
Thanks for the help!

Here's what I ended up doing:

Hmm sounds to me like grub is installed wrong spot ? On the advanced installer make sure grub is installed the right place.

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stayhuman

deepin

2016-01-26 20:32

Thanks again, but how do I make sure that grub is installed in the right place? And shouldn't that have happened automatically with the simple method?

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dance707

deepin

2016-01-26 20:40

https://bbs.deepin.org/post/30626
Thanks again, but how do I make sure that grub is installed in the right place? And shouldn't that h ...

Yes it normally does on the simple method. But when users try the advanced they often forget and possible if not fully erased on second attempt it left wrong spot. Just a guess.

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dance707

deepin

2016-01-26 20:43

https://bbs.deepin.org/post/30626
Yes it normally does on the simple method. But when users try the advanced they often forget and p ...

It depends if older computer of the newer uefi boot type computers. And also how you plan to partition the drive

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stayhuman

deepin

2016-01-26 20:52

The computer is an HP Pavilion with uefi.

My partitioning scheme was:
dev/sda1 ext 4 12GB mounted at /
dev/sda2 swap 4GB
dev/sda3 ext 4 442GB mounted at /home

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dance707

deepin

2016-01-26 21:00

https://bbs.deepin.org/post/30626
The computer is an HP Pavilion with uefi.

My partitioning scheme was:

Sorry I have only done one install on a UEFI machine. With your gparted first need to make a GPT partition instead of a msdos partition. Then the grub is normally installed on the root sda1 but can be installed on sda but I have not tried it with Deepin.

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stayhuman

deepin

2016-01-26 21:05

#10

Thanks. I'll keep trying.

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dance707

deepin

2016-01-26 22:04

#11

https://bbs.deepin.org/post/30626
Thanks. I'll keep trying.

If your still having trouble I would start a new post How to install Deepin on UEFI machine and others can help..
The name of this post is how to unmount iso device

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