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[ubuntu] Can't install ubuntu

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http://ubuntuforums.org – I'm trying to do a standard install of Ubuntu 12.4.1 on my computer after accidentally using Pen Drive Linux's USB Installer on my Ubuntu partition. When trying to install i get an error saying unable to unmount /cdrom device busy. Upon checking Gparted i see that sda5 (what use to be SWAP space before my accident) is mounted to /cdrom and sda5 and 6(ubuntu partition) are both labeled PENDRIVE and sda5 indeed can't be unmounted. So i tried the command Code: sudo umount -l -r -f /cdrom . No errors were given and upon checking Gparted is is indeed unmounted but i still can't format it (Hardware)

xskl's picture
Submitted by xskl on 09/30/2012

Stories similar to [ubuntu] Can't install ubuntu

Hi All,

I installed ubuntu alongside with windows 7 but I am not getting the option for ubuntu in the windows boot loader.

I have a 320 gb hard disk: C: drive - 40 gb windows has been installed on this D and E drives - 250 gb used for data

F: drive - 15 gb firstly formatted as NTFS but used gparted to change the filesyste. This is the partition I used to install ubuntu.

Ubiquity alternative? 38 weeks 1 day ago

So I've decided to install Ubuntu but my CDROM was broken and I didn't have any USB so I decided to make a livecd partition on my hard drive. It was normal, I booted in the live cd, I formatted my hard drive, but when I got to the actual installation part, it said "unable to unmount /cdrom" or something similar. I unmounted it manually, but then ubiquity crashed.

I have tried to resize (shrink) my NTFS partition so that I will be able to get more space for my ext4 Ubuntu's (12.04 64 bit) partition but after the partition has been resized I am unable to mount it.

disk showing busy 33 weeks 5 hours ago

Want to create LV Group but when i unmount /dev/sda5 this showing

[root@xen01 ~]# umount /dev/sda5 umount: /: device is busy umount: /: device is busy

This means disk /dev/sda5 is busy and due to this i can't create phsical,logical volume on this disk.

[root@xen01 ~]# pvcreate /dev/sda5 Can't open /dev/sda5 exclusively.

I've installed Ubuntu 12.04 using a Live CD to a new Gateway computer with Windows 7. I used "Install Alongside Windows" option. But on restart there was no boot menu. It only starts into Windows.

Cannot install Ubuntu 12.10 15 weeks 17 hours ago

I have a Samsung N120 netbook, and for some reason, cannot install Ubuntu. It says:

can't unmount /cdrom: Device resource or busy (note that my netbook doesn't have cdrom!) Resetting /etc/default/keyboard

Even if I wait for 15 minutes, nothing moves.

What should I do?

[xubuntu] Broken partition? 29 weeks 6 days ago

Hi, After finishing a full reinstall where I changed the partioning on my hard drive, I find Gparted not recognising my swap space.

The partition is shown as an unknown file system and is, according to Gparted, not mounted after start-up, however when I want to format it to a linux-swap, Gparted wil fail and return that the partition is busy.

I must say i'm new to ubuntu and already burned my head today looking for information so I'm asking this through here.

i keep getting the following error code when trying to eject my cd-rom drive, the only way i can get it to eject is by powering off.

Error ejecting: eject exited with exit code 1: eject: unable to eject, last error: Inappropriate ioctl for device

mike@hackbox:~$ eject -rv eject: using default device `cdrom' eject: device name is `cdrom' eject: expanded name is `/dev/cdrom' eject: `/dev/cdrom' i