Re: Re: grub does not detect partition 5 on new USB-WD My Passport 1TB

[Vladimir 'phcoder' Serbinenko]

On Thu, Jul 18, 2019 at 6:17 PM Peter Littmann <address@hidden> wrote:
>
> You mean doing "ls -l" in a booted Linux?
> Accessing the disk from within Linux is not the problem.
> I installed Linux(Ubuntu/Manjaro/Arch) some times to this disk and all wents 
> good.  But at boot time grub2 is not be able to detect/connect to the 
> installed system.
>
> Grub2 itself does not provide "ls -l", right?
It does
>
> Your guess goes in the direction of a problem with 48Bit-LBA it seems, but 
> this was included in the BIOSes around the year 2002, I think?
For internal, yes. For USB the problem persisted for many more years
> This AMI BIOS is from the year 2010(Build-date).
>
> In case of (hd0,msdos1)(Ubuntu) it helped to install it in the first 
> partition.
> But the rest of the HDD should be adressable by the BIOS and Grub2, too, I 
> expect.
>
> Booting by SuperGrub2Disk 2.04rc1 even does not show (hd0,msdos5).
>
> Only when I load the additional drivers(experimental) I can show 
> (usb5a,msdos5) and list its contents.
> But I can not boot it, but this may be a other problem cause at first it 
> detects a device hd111 and then can not find it.
>
> Regards
>
> Peter Littmann
>
> Gesendet: Donnerstag, 18. Juli 2019 um 14:42 Uhr
> Von: "Vladimir 'phcoder' Serbinenko" <address@hidden>
> An: "Peter Littmann" <address@hidden>
> Cc: address@hidden
> Betreff: Re: grub does not detect partition 4 and 5 on new USB-WD My Passport 
> 1TB
> try "ls -l" to see how much of disk BIOS sees. My guess is that it
> cuts it at 128GiB. I'd recommend putting everything need for boot at
> the beginning of the disk
>
> On Mon, Jul 15, 2019 at 6:32 PM Peter Littmann <address@hidden> wrote:
> > I have a old BIOS (build date 04/01/2010) and connected a new USB-WD 
> > Passport 1TB harddisk.
> > Grub 2.02 does only detect: (hd0,msdos1), (hd0,msdos2) and (hd0,msdos3)
> > But not (hd0,msdos4) (Extended) and (hd0,msdos5) (ext4 with 
> > Arch-Installation).
> > The addressing should be handled by 48Bit-LBA.
> >
> > What can be the reason and how to solve this?
>



-- 
Regards
Vladimir 'phcoder' Serbinenko