Re: [PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Vladimir 'φ-coder/phcoder' Serbinenko
On 09/22/2010 05:45 PM, Thomas Frauendorfer | Miray Software wrote: > Hi, > > On some boards, like the AsRock K7S41GX, Grub fails to boot from > superfloppy fat32 formated usb sticks. > This config isn't recommended in first place. You should really create partitions on the USB disk and leave some

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Vladimir 'φ-coder/phcoder' Serbinenko
On 09/22/2010 10:57 PM, Brendan Trotter wrote: > Hi, > > 2010/9/23 Vladimir 'φ-coder/phcoder' Serbinenko : > >> On 09/22/2010 07:44 PM, Lennart Sorensen wrote: >> >>> On Wed, Sep 22, 2010 at 07:08:49PM +0200, Grégoire Sutre wrote: >>> On 09/22/2010 18:44, Lennart Sorensen wrote:

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Brendan Trotter
Hi, 2010/9/23 Vladimir 'φ-coder/phcoder' Serbinenko : > On 09/22/2010 07:44 PM, Lennart Sorensen wrote: >> On Wed, Sep 22, 2010 at 07:08:49PM +0200, Grégoire Sutre wrote: >>> On 09/22/2010 18:44, Lennart Sorensen wrote: >>> After all msdos partitions tables may only exist in MBR and extended

Re: [PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Thomas Frauendorfer
On Wed, Sep 22, 2010 at 7:45 PM, Lennart Sorensen wrote: > On Wed, Sep 22, 2010 at 06:52:46PM +0200, Thomas Frauendorfer wrote: >> Well, I think I didn't state the problem clearly enough: >> The bios doesn't write to the disk, it just changes the value on the >> fly when the bootloader is reading

Booting 64-bit Linux on a Macbook5,2

2010-09-22 Thread Patrick Doyle
Help, I don't know where to turn here. It seems that every thread I've found that describes this ends with "and now it works", but I can't seem to get there. I have installed 64-bit Ubuntu 10.04 on a Macbook5,2. I would like to boot this without the acpi=off parameter that is currently required.

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Vladimir 'φ-coder/phcoder' Serbinenko
On 09/22/2010 07:44 PM, Lennart Sorensen wrote: > On Wed, Sep 22, 2010 at 07:08:49PM +0200, Grégoire Sutre wrote: > >> On 09/22/2010 18:44, Lennart Sorensen wrote: >> >> >>> After all msdos partitions tables may only exist in MBR and extended >>> partitions >>> >> According to which

Re: [PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Lennart Sorensen
On Wed, Sep 22, 2010 at 06:52:46PM +0200, Thomas Frauendorfer wrote: > Well, I think I didn't state the problem clearly enough: > The bios doesn't write to the disk, it just changes the value on the > fly when the bootloader is reading the bpb through a bios method. > The workaroud also doesn't cha

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Lennart Sorensen
On Wed, Sep 22, 2010 at 07:08:49PM +0200, Grégoire Sutre wrote: > On 09/22/2010 18:44, Lennart Sorensen wrote: > >> After all msdos partitions tables may only exist in MBR and extended >> partitions > > According to which standard? Well, I think DOS and common practice. Can you think of any OS th

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Grégoire Sutre
On 09/22/2010 18:44, Lennart Sorensen wrote: After all msdos partitions tables may only exist in MBR and extended partitions According to which standard? Grégoire ___ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo

Re: [PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Thomas Frauendorfer
On Wed, Sep 22, 2010 at 6:14 PM, Lennart Sorensen wrote: > Wouldn't that be a bug in the BIOS?  Don't go writing to a drive you > don't know what contains.  It could be something other tahn fat16 after > all (what if it was a linux kernel with a bootheader on it and not a > filesystem at all?) >

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Lennart Sorensen
On Wed, Sep 22, 2010 at 12:19:22PM -0400, Phillip Susi wrote: > This sounds like a bug in grub. It should not be looking for an EBR > inside a non extended partition, so if there happens to be some old data > there that looks like one, it should not matter. Well it would appear that it does curre

Re: Improperly nested partitions, help needed!

2010-09-22 Thread Phillip Susi
On 9/21/2010 10:54 AM, Lennart Sorensen wrote: >> How to resolve this problem? According to fdisk the sda1 and sda3 partitions >> are _not_ overlapping: >> Additionally, does the same warning have to be repeated so many times for >> every kernel entry??? > > It did not say they overlapped. It s

Re: [PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Lennart Sorensen
On Wed, Sep 22, 2010 at 05:45:34PM +0200, Thomas Frauendorfer | Miray Software wrote: > On some boards, like the AsRock K7S41GX, Grub fails to boot from > superfloppy fat32 formated usb sticks. > > The reason for the boot failure is that the bios of the mentioned > board replaces byte 0x24

[PATCH] Workaround for usb boot failure on some mainboards

2010-09-22 Thread Thomas Frauendorfer | Miray Software
Hi, On some boards, like the AsRock K7S41GX, Grub fails to boot from superfloppy fat32 formated usb sticks. The reason for the boot failure is that the bios of the mentioned board replaces byte 0x24 of the bpb with the value 0x00 when it's read through the bios function. In fat16 this byt