Public bug reported:

Binary package hint: grub

Ubuntu Release: Maverick and Natty

Summary: With certain 512 sector and 4k Sector Drives in 512e mode, the
systems fail to boot after installing the Operating System when the SATA
controller is set to AHCI mode in the BIOS.

The issue has been observed on two Seagate 4Ke drives and one 4Ke
Hitachi drive with the following model numbers and sizes:

ST9500423AS 500GB
ST250LT007 250GB
HTS547564A9E384 640GB

One 512B Hard Drive from Hitachi was also found to be problematic:

HTS723232A7A64 320GB

With the Problem drives, the following is observed with these BIOS
settings on certain Dell Latitude machines.

AHCI Mode - The image appears to install fine, but afterward the systems
won't boot the OS. We are dropped to a grub prompt or a black screen
with blinking cursor.

Raid On - Works without issue.

ATA Mode - Works without issue.

Natty also appears to be affected by this as well. We get similar
symptoms where the OS doesn't boot afer a seemingly fine installation.

Steps to reproduce:
1) Install Maverick or Natty onto one of the above disks.
2) Reboot

Actual result: At this stage, in AHCI mode,  the system is either dropped to a 
black screen (as observed in the factory installations),  If Grub is installed 
to the MBR of the affected drives in AHCI mode, we are dropped to a grub or 
grub rescue prompt.
Switching to either ATA mode or Raid On in the BIOS allows the OS to boot just 
fine.

Expected result: Operating System boots regardless of the SATA Mode in
the BIOS with these hard disks.

** Affects: oem-priority
     Importance: Critical
         Status: Confirmed

** Affects: grub (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/741799

Title:
  OS fails to boot certain SATA drives in AHCI mode.

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to