Re: rawhide net install image doesn't work with bios partitions

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On Mon, 27 May 2019 22:27:16 -0600
Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote:

> On Mon, May 27, 2019 at 3:55 PM stan <upaitag@xxxxxxxx> wrote:

> > It ran for
> > over 20 minutes at almost 100% CPU and didn't complete.  So, I
> > killed it.  
 
> The installation failure needs a bug report with all the installer
> logs attached, and a description of reproduce steps, and the before
> and after state.

Where do I find these logs?  I'm not in an active system when I'm
reading them, the install has failed.

Before and after state for what?  It's a 250 GiB partition.

> >
> > The issue seems to be that hybrid installs are not allowed.  If I
> > install as BIOS, then I have to use BIOS partitioning, not gpt.  
> 
> Not correct. The installer does support GPT when booted with BIOS
> firmware. It just doesn't support MBR with UEFI firmware.
> 
> > And, if
> > I install as UEFI, for some reason it doesn't accept the existing
> > ext4 partitions on the gpt formatted drive.  
> 
> That's a separate bug report, also needs installer logs attached.
 
Same question.  Where are they saved?

> > Is must be possible to boot a
> > GPT drive from a BIOS mbr because it appears that I was doing
> > that.  
> 
> I can't parse this.

The existing F28 on this GPT disk was booting just fine before I tried
to install F31.  Turn the machine on, and F28 running resulted.

> > Or, did the hybrid UEFI/BIOS firmware setting allow both?  
> 
> Running 'efibootmgr' will tell you what firmware is being presented to
> the kernel.

# efibootmgr -v
EFI variables are not supported on this system (from F28, /dev/sda5, on
the GPT drive).

> >
> > Here's the partition table for the disk from gdisk -l.
> >
> > Number  Start (sector)    End (sector)  Size       Code  Name
> >    1         2097152         4194303   1024.0 MiB  8300
> >    2         4194304         6291455   1024.0 MiB  0700
> >    3         6291456        48234495   20.0 GiB    8200
> >    4        48234496       572522495   250.0 GiB   8300
> >    5       572522496      1096810495   250.0 GiB   0700
> >    6      1096810496      5860532223   2.2 TiB     0700
> >    7            2048            6143   2.0 MiB     EF02
> >
> > The first two partitions are boot, then swap, then two root
> > partitions, then data.  The code for the partitions I was trying to
> > install from the iso to are now 8300, the existing Fedora is 0700.  
> 
> That's all suspicious because 0700 for a boot volume isn't correct,
> and suggests an old version of parted created that partition. Also
> partition 3 cannot be a root partition, the type code is for swap.

# fdisk -l /dev/sda
Disk /dev/sda: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 363C9B1D-DBA5-41AE-A74B-6DD5F974ED6D

Device          Start        End    Sectors  Size Type
/dev/sda1     2097152    4194303    2097152    1G Linux filesystem
/dev/sda2     4194304    6291455    2097152    1G Microsoft basic data
/dev/sda3     6291456   48234495   41943040   20G Linux swap
/dev/sda4    48234496  572522495  524288000  250G Linux filesystem
/dev/sda5   572522496 1096810495  524288000  250G Microsoft basic data
/dev/sda6  1096810496 5860532223 4763721728  2.2T Microsoft basic data
/dev/sda7        2048       6143       4096    2M BIOS boot

Partition table entries are not in disk order.

I'm typing from /dev/sda5.  So, 0700 *is* a linux filesystem on this
disk, not Microsoft basic data.  
> 
> > Can I actually somehow do a UEFI install to this disk, preserving
> > the existing Fedora and being able to boot to it directly?  
> 
> Dual Fedora's isn't officially supported. The installer almost always
> steps on the previous Fedora's bootloader making it unbootable, in
> favor of a new bootloader for the new Fedora installation. Sometimes
> grub2-mkconfig finds the old Fedora and will add entries for it in the
> grub.cfg, sometimes not. If root is a plain partition, it'll be
> discovered probably, and if it's LVM, the installer doesn't activate
> LVM for other installations so os-prober won't see them and won't
> create menu entries.
> 
> So you'll have to jerry-rig it yourself after the new installation.

See my comments about this on another reply in this thread.
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