Commit Graph
2 Commits
Author SHA1 Message Date
Paul Menzel b71ac53751 unix/platform: Initialize variable to fix grub-install on UEFI system
On a UEFI system, were no boot entry *grub* is present, currently,
`grub-install` fails with an error.

    $ efibootmgr
    BootCurrent: 0000
    Timeout: 0 seconds
    BootOrder: 0001,0006,0003,0004,0005
    Boot0001  Diskette Drive
    Boot0003* USB Storage Device
    Boot0004* CD/DVD/CD-RW Drive
    Boot0005  Onboard NIC
    Boot0006* WDC WD2500AAKX-75U6AA0
    $ sudo grub-install /dev/sda
    Installing for x86_64-efi platform.
    grub-install: error: efibootmgr failed to register the boot entry: Unknown error 22020.

The error code is always different, and the error message (incorrectly)
points to efibootmgr.

But, the error is in GRUB’s function
`grub_install_remove_efi_entries_by_distributor()`, where the variable
`rc` for the return value, is uninitialized and never set, when no boot
entry for the distributor is found.

The content of that uninitialized variable is then returned as the error
code of efibootmgr.

Set the variable to 0, so that success is returned, when no entry needs
to be deleted.

Tested on Dell OptiPlex 7010 with firmware A28.

    $ sudo ./grub-install /dev/sda
    Installing for x86_64-efi platform.
    Installation finished. No error reported.

[1]: https://github.com/rhboot/efibootmgr/issues/100

Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-11-09 13:34:16 +01:00
Paul Menzel d62cafcf35 ahci: Increase time-out from 10 s to 32 s
This is a cryptographically signed message in MIME format.

Date: Thu, 9 Aug 2018 07:27:35 +0200

Currently, the GRUB payload for coreboot does not detect the Western
Digital hard disk WDC WD20EARS-60M AB51 connected to the ASRock E350M1,
as that takes over ten seconds to spin up.

```
disk/ahci.c:533: port 0, err: 0
disk/ahci.c:539: port 0, err: 0
disk/ahci.c:543: port 0, err: 0
disk/ahci.c:549: port 0, offset: 120, tfd:80, CMD: 6016
disk/ahci.c:552: port 0, err: 0
disk/ahci.c:563: port 0, offset: 120, tfd:80, CMD: 6016
disk/ahci.c:566: port: 0, err: 0
disk/ahci.c:593: port 0 is busy
disk/ahci.c:621: cleaning up failed devs
```

GRUB detects the drive, when either unloading the module *ahci*, and
then loading it again, or when doing a warm reset.

As the ten second time-out is too short, increase it to 32 seconds,
used by SeaBIOS. which detects the drive successfully.

The AHCI driver in libpayload uses 30 seconds, and that time-out was
added in commit 354066e1 (libpayload: ahci: Increase timeout for
signature reading) with the description below.

> We can't read the drives signature before it's ready, i.e. spun up.
> So set the timeout to the standard 30s. Also put a notice on the
> console, so the user knows why the signature reading failed.

Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-09-13 10:54:54 +02:00