All hard disks refuse to boot.

I have a G45M motherboard with 3 SATA disks and one ATA disk installed; I maintain all four disks identical since I can't afford to lose my data. Recently, I went in on the usual boot disk and was told "No boot disk present. Changed to boot to disk 2, then 3 then 4 and all said the same thing! I don't believe that all four disks have suddenly died, so looked for other reasons. Could find no problem, so I low level formatted one disk, repartitioned and installed Windows XP since it is much less fussy that Vista or Windows 7, which I normally use. Ran fine, I could look at my other disks and they all had the data on, but not booting. Next day, booted up on Windows XP, was told "no boot disk present"! I had updated the BIOS about three weeks previously, and wonder whether this had upset things. Can anyone tell me where I can find the hpoefull saved previous BIOS and how to get it back in? I hope I can get it back to working for at least long enough to save things. Help!

Quote from: NovJoe on 14-December-10, 23:23:06
Can you check if the cables are fine? Try using another set of cables and PSU to test.
Yes, already checked those. What I don't understand is why all 4 disks show the same effect. Does anyone know of a
virus that will do this? I use AVg pro so I should be ok,but.....

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External USB hard disk fails to boot

I installed Arch Linux on an external USB Lacie 1 TB Hard Disk. I followed instructions on WiKi: "install from exisiting linux", method 2, since I already have Linux installed
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So there's just the root partition, no boot or home partition defined. Grub installed to the external HDD with no errors.
Here's the grub.cfg auto-generated, without anything adapted. The UUID of the external HDD /dev/sdb1 is correct.
[root@arch-laptop grub]# cat grub.cfg
# DO NOT EDIT THIS FILE
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
### BEGIN /etc/grub.d/00_header ###
insmod part_gpt
insmod part_msdos
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
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set lang=en_US
insmod gettext
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terminal_input console
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if [ x$feature_all_video_module = xy ]; then
insmod all_video
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insmod all_video
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load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 5fe1d28c-2640-4b5c-b98b-75d147479348
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the internal HDD (/dev/sda) also has GRUB installed, without any problems, with a graphical console menu.
GRUB version is 2.02
laptop: dv6-6b41ed
Legacy BIOS (no EFI / UEFI).
Any ideas on how to solve / troubleshoot this?
Last edited by christopher72 (2014-04-21 15:05:21)

Any hooks in particular? I don't know which hook to add other then the 'blocks' hook, which is there already:
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Hey dude,
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You were right BobRz! :-)
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Solved!
Go to Solution.

Sorry I did not get back online quick enough...but the passwords are the same.
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Thanks for pointing me in the right direction.

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Changing preferences on the Apple HD (not FD) and the Time Machine Backup HD to my user name (with administration privaleges) has had the reverse effect of not giving me access to anything other than my OSX system volume on my 250GB Flash drive! I can only see my files on the hard drives with the root user (which I have used for the first time ever to get that access). But using the root user does NOT allow me to change permissions of either my Time Machine backup disk or the Hard drive on my iMac ! Why oh why??
Googling for solutions suggested using iRepair to change permissions but that gives me a "boing" when I try with no effect - at least a "boing" is more feedback that the Apple Finder's response to my attempt to alter permissions in the "info" window!
Oh! and of course I have unsuccessfuly tried the Disk Utility as well, which does come back with errors - that appear to be "safe to ignore" from Apple Support's website!
I originally posted a slightly different message to this one to https://discussions.apple.com/message/16955471#16955471 because it appeared to have similar issues. It appears as if my problem is unfortunately quite unique!
Godfrey Bridger
Hamilton, New Zealand

So the background to this situation:
1. The user had OS 10.6.8 installed on one volume, while his actual users home folders stored on a second volume, this is fine but can sometimes cause issues during/post upgrade to 10.7
2. The user upgraded to 10.7 and while his home folders were still being accessed, he no longer had permission to change or modify them.
3. The user downgraded to 10.6.4 again which broke the link for his users completely.
4. In an attempt to change the permissions for his information he had the (common) mistake of changing the permissions of his root level of his drive, this did several things, in addition to negatively effecting his OS, it also locked the drive mount points in his (hidden) /Volumes/ folder.
5. the steps taken to help rectify this issue:
A. Open Terminal.
B. TYPE:
chmod -N /
chmod 1775 /
chown root:admin /
C. Reboot computer
D. Open Disk Utility.
E. Repair permissions on the boot volume.
F. Also the following commands were run on her second drive to allow him access to his stuff again:
sudo chflags -R nouchg /path to drive/
chmod -R 775 /path to drive/
chmod -RN /path to drive/
chown -R username:staff /path to drive/
Once the permissions repair is complete the Users can be readded to the System Preferences>Accounts pane and the paths to home directories located in his second drive using the "Advanced Options..." section, but due to the time the permissions repair was going to take this step will be posted tomorrow.
Also each user will require Terminal commands to make the permissions unique for each user: (this must be done PRIOR to the users being added in System Preferences>Accounts.
chmod -N /
chmod 1775 /
chown root:admin /
sudo chflags -R nouchg /path to home folder/
sudo chmod -R 775 /path to home folder/
sudo chmod -RN /path to home folder/
sudo chown -R username:staff /path to home folder/
EE

K7T266 Pro2 & new hard disk

Hi
I have just upgraded my K7T266 Pro2 with a 2400+ chip (with modification & bios) and upgraded RAM to 1 GB. All works OK.
Now I am trying to put in a new 250 GB Western Digital hard disk and installing Windows XP Pro from scratch and I am running into problems. The hard disk is on the main IDE connectors.
The BIOS recognises the hard disk. When installing Windows XP, it seems to only detect a 131 GB disk!. Windows installs but when the computer reboots as part of the installation, the hard disk will not boot, even when forced as the fist boot device.
If I boot from the Windows CD and go through the install again same problem.
Any suggestions?
Chris
Adelaide
Australia

harrisc:
You mentioned that you updated the BIOS - the last release (1.9) had a note that it "Support Maxtor 160GB HDD (4G160J8)" so I would expect the board to support the 250 Gb WD drive, as well.
The problem probably is in Windows - XP versions before SP1 did not support 48 bit LBA (Logical Block Addressing) which is needed for drives larger than 131 Gb to be recognized.
Here is a link to the Microsoft Knowledge Base article with a 'fix':
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q303013
If your installation disk is a pre SP1 then that's the problem; if it's SP1 or SP2 then there IS a BIOS limit (contrary to what I assumed above). Your best bet then is to partition the drive with a ~50 Gb primary and 200 Gb extended partition and live with two logical drives.
Good luck,
ss

All hard disks refuse to boot.

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