booting trouble
Michaƫl Van Dorpe
michael.vandorpe at gmail.com
Fri Mar 2 23:12:04 UTC 2007
Nice weekend to everyone on the mailing list!
I screwed up my OSX - Feisty dual boot, using rEFIT, quite badly on my
Intel iMac. I
now can only boot OSX, or a live cd. I can see that my Ubuntu
partition is still there, but the pinguin icon in the rEFIT menu got
replaced with a generic 'legacy OS' (sic) icon. Activating that
results in a black screen saying "Missing operating system."
Using 'sudo fdisk -l' on a live cd, I have learned that I have the
following partitions:
sda1 EFI/GPT
sda2 boot Unknown
sda3 EFI Fat-12/16/32
sda4 Linux swap
I believe that the 'unknown' is the OSX partition, while sda3 is the
Feisty partition.
I tried some commands to get more information from the terminal within OSX:
michael:~ michael$ diskutil list
/dev/disk0
#: type name size identifier
0: GUID_partition_scheme *232.9 GB disk0
1: EFI 200.0 MB disk0s1
2: Apple_HFS Macintosh HD 116.0 GB disk0s2
3: EFI 111.9 GB disk0s3
4: Linux Swap 4.8 GB disk0s4
[snip: info on the live cd]
michael:~ michael$ sudo fdisk /dev/rdisk0
Password:
Disk: /dev/rdisk0 geometry: 30401/255/63 [488397168 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>
*2: AF 1023 254 63 - 1023 254 63 [ 409640 - 243269632] HFS+
3: EF 1023 254 63 - 1023 254 63 [ 243679272 - 234687501] <Unknown ID>
4: 82 1023 254 63 - 1023 254 63 [ 478366773 - 10030362] Linux swap
Thanks for explaining me what to do next, what information I should
gather, or just explain what the above information means... Of course,
the important thing is that I can always recover the data on that
partition, but I prefer 'Ubuntu the operating system' rather than
'Ubuntu the partition' ;-)
Thanks.
Oh, and if you want to know how all this happened... Well, I should
have documented that, but I didn't. It all started when I forced my
computer to shut down after something had gone wrong during an
upgrade.
Michael
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