Bug 140499

Summary: Server hangs on reboot after install with SCSI & software RAID.
Product: [Fedora] Fedora Reporter: Kent Ho <kent>
Component: grubAssignee: Peter Jones <pjones>
Status: CLOSED RAWHIDE QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: 3CC: wusel+rhbug, yusufg
Target Milestone: ---   
Target Release: ---   
Hardware: i386   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-03-30 22:28:40 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Kent Ho 2004-11-23 04:10:05 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040616

Description of problem:
Grub doesn't install MBR on to both software RAID1 disks during install.

Version-Release number of selected component (if applicable):
grub-0.95-3

How reproducible:
Always

Steps to Reproduce:
I did a custom install with software RAID with 2 SCSI disks.

/dev/sda1  <->  /dev/sdb1  RAID1 (4G)
/dev/sda2 swap  /dev/sdb2  swap   
/dev/sda3  <->  /dev/sdb3  RAID1 (4G+)

Installs as normal.  After installation completes, I rebooted the
server and hangs after BIOS scans.

Summary
-------
1. Custom install with Software RAID1 running on SCSI "/".
2. Reboot after install completes
3. Server hangs immediately after BIOS scans.

Actual Results:  I rebooted the servers after fresh install and hangs
after BIOS scan.  Sometimes it displays a blank screen, sometime a
flashings cursor at top left and once it displayed "GRUB" and hangs.

Expected Results:  I should see a nice grub GUI boot menu and boot up
the machine.

Additional info:

I tried on 2 different machine setups.

config 1)
DUAL P3-500Mhz
Intel L440GX+ Serverboard onboard Adaptec aic7896 controller
2 * 9G SEAGATE ST39204LC
512Mb RAM.

config 2)
P3-500
Intel SE440BX2 desktop board
Adaptec 2940 SCSI controller
2 * 9G SEAGATE ST39204LC
256MB RAM

Both have the same problem.  I got round the problem by updating the
MBR in rescue mode.

http://www.fedoraforum.org/forum/showthread.php?t=26912
Comment 1 Yusuf Goolamabbas 2004-11-24 05:40:40 UTC 
I am seeing the same behaviour installing on 2 120GB maxtor IDE
ATA-133 disks. I can't seem to get the boot screen with the workaround
suggested with the fedoraforum.org pages

Kent, Can you pls change the summary to remove SCSI
Comment 2 Kai 'wusel' Siering 2005-08-11 10:51:00 UTC 
Just as a side note, similar happend to my when installing FC4 (booted from
rescue CD and did install from DVD image on spare partition, due to lack of
DVD drive in the system) onto sda and sdb in SW-RAID1 mode attached to the
Symbios HBA on an HP'ed ASUS CUR-DLS. I had to do a rescue boot and install
grub onto the MBR of sda manually.

# more /proc/mdstat 
Personalities : [raid1] 
md1 : active raid1 sdb1[1] sda1[0]
      264960 blocks [2/2] [UU]
      
md0 : active raid1 sdb2[1] sda2[0]
      3148672 blocks [2/2] [UU]

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md0              3.0G  1.7G  1.2G  59% /
/dev/md1              251M   33M  206M  14% /boot
/dev/shm              442M     0  442M   0% /dev/shm

# fdisk -l
[...]
Disk /dev/sda: 36.9 GB, 36951490560 bytes
255 heads, 63 sectors/track, 4492 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          33      265041   fd  Linux raid autodetect
/dev/sda2              34         425     3148740   fd  Linux raid autodetect
/dev/sda3             426         556     1052257+  82  Linux swap / Solaris

Disk /dev/sdb: 36.9 GB, 36951490560 bytes
255 heads, 63 sectors/track, 4492 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1          33      265041   fd  Linux raid autodetect
/dev/sdb2              34         425     3148740   fd  Linux raid autodetect
/dev/sdb3             426         556     1052257+  82  Linux swap / Solaris
[...]