you should be able to pretend that you've in your normal environment using a load of 'mount ...' commands followed by a chroot. There are plenty of examples online - http://superuser.com/questions/111152/whats-the-proper-way-to-prepare-chroot-to-recover-a-broken-linux-installation seems to approximately mirror your environment.

Steve


On 01/24/2017 10:49 AM, Barry wrote:
Thank you for your reply, what a horrible suggestion.

After googling I opened a second xterm and logged in no problem. mount showed that the correct ptn was mounted and df showed I have 7G available. I then tried startx which failed with error 1.

Checking the log file showed this msg "(EE) Devices detected, but none match those in the config file" so looks like i chose the wrong monitor.

uname -a gives "Linux localhost 3.8.13-desktop-1.mga3 #1..............." I have not run Mageia 3 for a number of years. I did use this partition as root then but it should have been overwritten by the new install.

The kernel shown in /boot dir is "vmlinuz-4.4.30-desktop-2.mga5". This is what I expected uname to give me.

Where do I go to now?

TIA, Barry

-------------------------------------------------------------------------------
On 24/01/17 09:00, Roger Searle wrote:
Sorry to hear :(

Motherboard failure?

Roger

On 23/01/2017 7:36 p.m., Barry wrote:
Hi All, the heading understates my problem - I can no longer boot my desktop!!!

The setup is I have 2 hard drives, 1 with 6 ptns and the other with 8. Each drive has (or should have) 2 bootable ptns. I am using grub to start any one of them but none work. All attempts to reinstate boot records have failed and the mbr has some funny entries.

Rescue disks on hand include install disks for Mageia 4, and Mageia 5 and a live dvd for Mageia 5. Also a Knoppix 5 disk and a Boot-Repair-Disk. None of the install disks appear to be writing to the mbr.

Does the live dvd run in a ramdisk only? I have tried to set up a bootable ptn (sdb1 or sdb6) from this disk several times but it does not appear to overwrite the mbr by the look of the choices when I reboot. Also tried to make small changes which should show up on a real disk later

The last install from the live disk was to /dev/sdb, with bootloader grub on /dev/sda . This time the grub menu was correct. It started to boot but stopped when dependencies failed for sda9 (swap) and sdb5 (data)

Help and condolencies will be most appreciated

Barry

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Steve Holdoway BSc(Hons) MIITP
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