2010-10-04, 05:15 AM
I thought about this some more. If you go ahead and delete /dev/sdb5, then renumbering of your other logical partitions is going to cause your /dev/sdb7 Ubuntu to fail to boot. If you still really want to remove the unnecessary Ubuntu entries and/or reclaim that ~100GiB, then some of your options are as below:
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If you just want to hide the boot entries for Ubuntu on /dev/sdb5, then you can manually edit GRUB2's config. To edit GRUB2's configuration file, follow the directions of the last bullet point here: https://wiki.ubuntu.com/Grub2#User-defined%20Entries .[INDENT]Some of the cons are going to be that you won't be able to use that 100GiB and the entries will probably come back after kernel updates or any other time update-grub is run. On the up-side, you're free to reclaim that space by deleting all old Ubuntu installs when installing Ubuntu 10.10 -- which should be on 10/10/10 (less than a week from now).
[/INDENT]A simple way to reclaim that space (and update your grub menu) is to reformat /dev/sdb5 and have it mounted to its own directory. Then when you run "sudo update-grub", the only Ubuntu detected will be your preferred one on /dev/sdb7.[INDENT]If you then want it automatically mounted during boot, you can add an entry for it to /etc/fstab. Wikipedia's article details the formatting of fstab: http://en.wikipedia.org/wiki/Fstab
[/INDENT]The other simple way to reclaim the space is to redo the installation procedure. Make sure to choose manual partitioning so you can delete all of /dev/sdb5 through /dev/sdb8. Then create a new partition for swap and / in the now unallocated space. (Since Ubuntu 10.10 comes out in less than a week, I wouldn't recommend this now.)
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If you just want to hide the boot entries for Ubuntu on /dev/sdb5, then you can manually edit GRUB2's config. To edit GRUB2's configuration file, follow the directions of the last bullet point here: https://wiki.ubuntu.com/Grub2#User-defined%20Entries .[INDENT]Some of the cons are going to be that you won't be able to use that 100GiB and the entries will probably come back after kernel updates or any other time update-grub is run. On the up-side, you're free to reclaim that space by deleting all old Ubuntu installs when installing Ubuntu 10.10 -- which should be on 10/10/10 (less than a week from now).
[/INDENT]A simple way to reclaim that space (and update your grub menu) is to reformat /dev/sdb5 and have it mounted to its own directory. Then when you run "sudo update-grub", the only Ubuntu detected will be your preferred one on /dev/sdb7.[INDENT]If you then want it automatically mounted during boot, you can add an entry for it to /etc/fstab. Wikipedia's article details the formatting of fstab: http://en.wikipedia.org/wiki/Fstab
[/INDENT]The other simple way to reclaim the space is to redo the installation procedure. Make sure to choose manual partitioning so you can delete all of /dev/sdb5 through /dev/sdb8. Then create a new partition for swap and / in the now unallocated space. (Since Ubuntu 10.10 comes out in less than a week, I wouldn't recommend this now.)