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#5 Legacy nonexisting OS s

open
nobody
None
5
2006-08-04
2006-08-04
No

As boot options I can see two other "Legacy OS". This
happened after I installed lilo on /dev/sda4 (/dev/sda4
is the root linux partition) w/ this configuration:

boot=/dev/sda4
default=Ubuntu

map=/boot/map
delay=20
image=/vmlinuz initrd=/initrd.img
root=/dev/sda4
label=Ubuntu
read-only

I the removed lilo w/ "lilo -u /dev/sda4"

But the "Legacy OS" icons remains.

Do you have any idea why is this happening?

Discussion

  • Christoph Pfisterer

    Logged In: YES
    user_id=51640

    It could be that lilo removed itself from the partition boot sector, but left the
    "bootable" signature in place. rEFIt picks up that signature, but can't find any
    specific OS loader, so it labels it as "generic".

    For ext2/ext3/ReiserFS file systems you can wipe the partition boot sector
    clean with dd, see here: http://sourceforge.net/tracker/index.php?
    func=detail&aid=1535014&group_id=161917&atid=821764

    For further analysis I'd need more precise information about your setup, e.g.
    information about the partition tables ("diskutil list", "fdisk /dev/rdisk0"), the
    labels of the boot entries in rEFIt, ideally full information from
    "disktype" (http://disktype.sourceforge.net/).

     
  • Gianluca Sartori

    Logged In: YES
    user_id=950884

    Thanks, I was able to remove one of the icons with the dd
    command. Unfortunatly one generic icon is still there, could
    that be the swap partition? I didn't tryed dd on the swap.
    Is it safe to do it on a swap partition?

    Anyway, booting from that generic icon results in Ubuntu to
    load normally.

    Thaks so much for now!

    I'm at work now, I'll attach u my disk layout as soon as I can.

    Gianluca

     
  • Gianluca Sartori

    Logged In: YES
    user_id=950884

    Okay, after a reinstallatoin of OsX and Linux, I still have
    a generic icon on the boot screen. My disk layout is (the
    output is italian, but should be understandable):

    Numero Inizio Fine Dimensione File System Nome
    Flag
    1 20kB 210MB 210MB fat32 EFI System
    Partition avvio
    2 210MB 32GB 32GB hfs+
    Apple_HFS_Untitled_1
    3 32GB 33GB 1049MB linux-swap
    4 33GB 44GB 10GB ext3
    avvio
    5 44GB 80GB 36GB fat32

    Gianluca

     

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