richard130
August 12th, 2015, 10:14 AM
Hi,
I have a work computer which shipped with Windows 7 enterprise and I'm trying to put ubuntu 14.04.3 LTS 64bit on it as a dual boot. I go through all the installation fine, but when I select ubuntu from the boot loader I get
Gave up waiting for root device. Common problems:
-Boot args (cat /proc/cmdline)
-check rootdelay= (did the system wait long enough?)
-Check root= (did the system wait for the right device?)
-Missing modules (cat /proc/modules; ls /dev)
ALERT ! /Dev/disk/by-uuid/xxx does not exist. Dropping to a shell
BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
enter 'help' for a list of built-in commands.
(initramfs)
and it ends up in a shell
(note I don't have the uuid to hand)
I have had a thorough search of google to try to fix this and I come up with nothing that works. There is no encryption or RAID set up or anything like that.
I have tried:
1. reinstalling grub loader using these (http://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd) instructions
2. updating initramfs using
sudo mount /dev/sda5 /mnt
sudo mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
update-initramfs -u
a bit like here (http://askubuntu.com/questions/456903/ubuntu-14-04-not-booting-update-initramfs-nothing-to-do-exiting)
3. Following the instructions here (http://www.proposedsolution.com/solutions/ubuntu-booting-to-initramfs-prompt/)
And so far nothing works.
In all of the above I've been mounting sda5 as on my system after the install sda1 and sda2 are small windows partitions (booting or whatever) sda3 is the main windows partition, sda 4 is the extended ubuntu partition consisting of sda5 as OS and sda6 as swap space. Am I right in doing this?
I'm installing from a bootable USB drive which works fine. I have verified the checksum on both the ubuntu iso and the utility (from pendrivelinux.com) which put it on the usb stick. Although if I use the check disk utility on the live USB it claims two files have issues but doesn't let me view them or do anything other than reboot. This prompted redownloading the iso and usb utility, reinstalling everything and verifying the checksums.
I'm sort of coming to my wits end on this one. Having done a few installs in my time (but still a newb really) I've never had so much trouble and have tried far more complicated partition arrangements in the past with success. It's sort of not good enough considering how Ubuntu is positioning itself; this is a completely vanilla dual boot of a LTS release on a bog standard Dell windows 7. [Rant over].
Any help would be much appreciated.
Thanks,
Rich.
I have a work computer which shipped with Windows 7 enterprise and I'm trying to put ubuntu 14.04.3 LTS 64bit on it as a dual boot. I go through all the installation fine, but when I select ubuntu from the boot loader I get
Gave up waiting for root device. Common problems:
-Boot args (cat /proc/cmdline)
-check rootdelay= (did the system wait long enough?)
-Check root= (did the system wait for the right device?)
-Missing modules (cat /proc/modules; ls /dev)
ALERT ! /Dev/disk/by-uuid/xxx does not exist. Dropping to a shell
BusyBox v1.21.1 (Ubuntu 1:1.21.0-1ubuntu1) built-in shell (ash)
enter 'help' for a list of built-in commands.
(initramfs)
and it ends up in a shell
(note I don't have the uuid to hand)
I have had a thorough search of google to try to fix this and I come up with nothing that works. There is no encryption or RAID set up or anything like that.
I have tried:
1. reinstalling grub loader using these (http://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd) instructions
2. updating initramfs using
sudo mount /dev/sda5 /mnt
sudo mount --bind /dev /mnt/dev
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
sudo chroot /mnt
update-initramfs -u
a bit like here (http://askubuntu.com/questions/456903/ubuntu-14-04-not-booting-update-initramfs-nothing-to-do-exiting)
3. Following the instructions here (http://www.proposedsolution.com/solutions/ubuntu-booting-to-initramfs-prompt/)
And so far nothing works.
In all of the above I've been mounting sda5 as on my system after the install sda1 and sda2 are small windows partitions (booting or whatever) sda3 is the main windows partition, sda 4 is the extended ubuntu partition consisting of sda5 as OS and sda6 as swap space. Am I right in doing this?
I'm installing from a bootable USB drive which works fine. I have verified the checksum on both the ubuntu iso and the utility (from pendrivelinux.com) which put it on the usb stick. Although if I use the check disk utility on the live USB it claims two files have issues but doesn't let me view them or do anything other than reboot. This prompted redownloading the iso and usb utility, reinstalling everything and verifying the checksums.
I'm sort of coming to my wits end on this one. Having done a few installs in my time (but still a newb really) I've never had so much trouble and have tried far more complicated partition arrangements in the past with success. It's sort of not good enough considering how Ubuntu is positioning itself; this is a completely vanilla dual boot of a LTS release on a bog standard Dell windows 7. [Rant over].
Any help would be much appreciated.
Thanks,
Rich.