Failed to switch root

[Patrick Dupre]

Hello,

I have the following issue:

● initrd-switch-root.service - Switch Root
   Loaded: loaded (/usr/lib/systemd/system/initrd-switch-root.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2019-06-25 13:49:42 UTC; 5min ago
  Process: 838 ExecStart=/usr/bin/systemctl --no-block switch-root /sysroot (code=exited, status=1/FAILURE)
 Main PID: 838 (code=exited, status=1/FAILURE)

Jun 25 13:49:42 localhost systemd[1]: Starting Switch Root...
Jun 25 13:49:42 localhost systemctl[838]: Failed to switch root: Specified switch root path '/sysroot' does not seem to be an OS tree. os-release file is missing.
Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Main process exited, code=exited, status=1/FAILURE
Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Failed with result 'exit-code'.
Jun 25 13:49:42 localhost systemd[1]: Failed to start Switch Root.
Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Triggering OnFailure= dependencies.

I though that it was an issue with the /etc/fstab, but I cannot see.
(there is not mtab for example)

Thank.

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]
===========================================================================

[Patrick Dupre]

when I mount the FS, I have
 cat /mnt/linux/etc/fedora-release
Fedora release 30 (Thirty)

This seems to indicate me that the FS which is mounted is wrong.
But it is the right one!

This is what is before:

[    3.971992] localhost systemd[1]: Stopped Create list of required static device nodes for the current kernel.
[    3.974382] localhost audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=kmod-static-nodes comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    3.974470] localhost audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=kmod-static-nodes comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    3.974575] localhost systemd[1]: Closed udev Kernel Socket.
[    3.977803] localhost systemd[1]: Closed udev Control Socket.
[    3.981413] localhost systemd[1]: Starting Cleanup udevd DB...
[    3.989944] localhost systemd[1]: Started Cleanup udevd DB.
[    3.989996] localhost audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=initrd-udevadm-cleanup-db comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    3.990050] localhost audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=kernel msg='unit=initrd-udevadm-cleanup-db comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[    3.990087] localhost systemd[1]: Reached target Switch Root.
[    3.992132] localhost systemd[1]: Starting Switch Root...
> Sent: Wednesday, June 26, 2019 at 3:29 PM
> From: "Patrick Dupre" 
> To: fedora 
> Subject: Failed to switch root
>
> Hello,
>
> I have the following issue:
>
> ● initrd-switch-root.service - Switch Root
>    Loaded: loaded (/usr/lib/systemd/system/initrd-switch-root.service; static; vendor preset: enabled)
>    Active: failed (Result: exit-code) since Tue 2019-06-25 13:49:42 UTC; 5min ago
>   Process: 838 ExecStart=/usr/bin/systemctl --no-block switch-root /sysroot (code=exited, status=1/FAILURE)
>  Main PID: 838 (code=exited, status=1/FAILURE)
>
> Jun 25 13:49:42 localhost systemd[1]: Starting Switch Root...
> Jun 25 13:49:42 localhost systemctl[838]: Failed to switch root: Specified switch root path '/sysroot' does not seem to be an OS tree. os-release file is missing.
> Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Main process exited, code=exited, status=1/FAILURE
> Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Failed with result 'exit-code'.
> Jun 25 13:49:42 localhost systemd[1]: Failed to start Switch Root.
> Jun 25 13:49:42 localhost systemd[1]: initrd-switch-root.service: Triggering OnFailure= dependencies.
>
> I though that it was an issue with the /etc/fstab, but I cannot see.
> (there is not mtab for example)
>
> Thank.
>
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: [e-mail]
>  Laboratoire interdisciplinaire Carnot de Bourgogne
>  9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
>  Tel: [phone]
> ===========================================================================
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[Patrick Dupre]

Hello,

In conclusion "temporally".
1) I could not boot on the first OS installed because 
linux instead of linuxefi 
and
initrd instead of initrdefi were used in the menuentry
If seems that moving from fedora 28 to fedora 30,
a) the grub.cfg generated does not keep track
b) acually, the new generation of grub.cfg (after the transition)
does not manage any menuentry.
2) When a grub.cfg is generate with grub2-mkconfig, even if multi
boot are detected (like on 2 different HDs), during the grub menu,
it is only possible to choice the boot kernels from the OS which
has generated the grub.cfg.
3) How to access to the other entries (ie on the OS sitting on the 
other HD)?  Using efiboofmgr -c
Here is efibootmgr

BootCurrent: 000F
Timeout: 1 seconds
BootOrder: 0008,0007,000F,000B,0000,000A,0011,000C
Boot0000  fedora
Boot0001* UEFI: SK hynix SC311 SATA 512GB
Boot0002* UEFI: General UDisk 5.00
Boot0003* UEFI: General UDisk 5.00
Boot0004  Diskette Drive
Boot0005* USB Storage Device
Boot0006  Onboard NIC
Boot0007  Linux
Boot0008* USB Key
Boot0009* UEFI: SK hynix SC311 SATA 512GB
Boot000A* Diskette Drive
Boot000B  fedora rescue
Boot000C* Onboard NIC
Boot000F* Fedora
Boot0011* USB Storage Device

My second disk is not bootable? It is not listed here

systemd-boot not installed in ESP.
System:
     Firmware: n/a (n/a)
  Secure Boot: disabled
   Setup Mode: user

Current Boot Loader:
      Product: n/a
     Features: ✗ Boot counting
               ✗ Menu timeout control
               ✗ One-shot menu timeout control
               ✗ Default entry control
               ✗ One-shot entry control
          ESP: n/a
         File: └─n/a

Available Boot Loaders on ESP:
          ESP: /boot/efi (/dev/disk/by-partuuid/0fe1d405-6683-456c-a306-140e882>
         File: └─/EFI/BOOT/BOOTIA32.EFI
         File: └─/EFI/BOOT/BOOTX64.EFI

Boot Loaders Listed in EFI Variables:
        Title: Fedora
           ID: 0x000F
       Status: active, boot-order
    Partition: /dev/disk/by-partuuid/0fe1d405-6683-456c-a306-140e882e322c
         File: └─/EFI/fedora/shimx64.efi

Title: fedora
           ID: 0x0000
       Status: inactive, boot-order
    Partition: /dev/disk/by-partuuid/0fe1d405-6683-456c-a306-140e882e322c
         File: └─/EFI/fedora/grubx64.efi

Title: UEFI: SK hynix SC311 SATA 512GB
           ID: 0x0001
       Status: active
    Partition: /dev/disk/by-partuuid/0fe1d405-6683-456c-a306-140e882e322c
         File: └─/EFI/Ubuntu/shimx64.efi

Title: UEFI: SK hynix SC311 SATA 512GB
           ID: 0x0009
       Status: active
    Partition: /dev/disk/by-partuuid/0fe1d405-6683-456c-a306-140e882e322c
         File: └─/EFI/Ubuntu/shimx64.efi

0 entries, no entry could be determined as default.

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]
===========================================================================