Ubuntu
os-prober package

Gutsy(beta) install did not recognise other Linux distros on disk, ie they do not appear in GRUB

Bug #121214 reported by Christopher Barrington-Leigh
6
Affects Status Importance Assigned to Milestone
os-prober (Ubuntu)
Invalid
Medium
Unassigned

Bug Description

I installed Gutsy(beta) next to Feisty and some old /fat32 OS. i.e. other OSs on other partitions of the disk.
The resulting GRUB menu.list includes Gutsy and Windows but NOT Feisty.
I am pretty sure that Feisty's installer recognised a neighbouring linux distro (which was Edgy).

Reasons why this is important:

- feature regressions seems a bad thing
- it's really odd to have Ubuntu find the competition but not find partitions which it created itself!

There are some related bugs, e.g. #47229, but they look old.

Tags: tribe1
Revision history for this message
Brian Murray (brian-murray) wrote :

Thanks for taking the time to report this bug and helping to make Ubuntu better. Did you notice this when installing from the Live CD or the Alternate CD? Thanks in advance.

Revision history for this message
Christopher Barrington-Leigh (cpbl) wrote :

Hi. It was the Live CD, ie standard x86 one, 32 bit...
Thanks

Revision history for this message
TerryG (tgalati4) wrote :

Triaged to Confirmed. GRUB is not perfect. Ubiquity relies on GRUB to enumerate operating systems and it sometimes fails. There are many documented cases where GRUB gets confused. Work arounds involve editing menu.lst or grub.conf. It's not difficult but it's not easy for the new user either. Since this is an older submission, there may have been improvements to GRUB.

Changed in ubiquity:
status: New → Confirmed
Revision history for this message
Colin Watson (cjwatson) wrote :

I'm afraid that TerryG's claim that Ubiquity relies on GRUB to enumerate other operating systems is entirely mistaken. It does not. It relies on GRUB to *boot* them, but detection is done via a completely separate component called os-prober.

Could you please attach /var/log/installer/syslog and /var/log/installer/partman to this bug, following the directions in http://wiki.ubuntu.com/DebuggingUbiquity/AttachingLogs? Thanks in advance.

Changed in ubiquity:
importance: Undecided → Medium
status: Confirmed → Incomplete
Revision history for this message
wolfger (wolfger) wrote :

Over 4 months with no response. We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!

Changed in os-prober:
status: Incomplete → Invalid
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