Monday, August 3, 2015

Fedora install issue - The system may not be bootable.

If you see this error message when installing Fedora (was version 22 in my case):

There was an error installing the bootloader. The system may not be bootable.

Remind yourself  that the system may be bootable!

The first 5 times I elected to stop the install (why continue if the system wont boot?). But the sixth time around after doing everything I could to verify it should be working I elected to go ahead with the install even though "The system may not be bootable.".

Guess what happened?

It didn't boot.

But the only reason it didn't boot was because the system was set to boot in BIOS mode and not in UEFI mode that I used when booting the install stick. Apparently the installer was unable to change the system's default boot selection. I went into the system setup and changed the default boot device to UEFI mode and the proper drive, booted again, and it all worked perfectly.

Possibly if the default boot setup had previously been set as such I may have never seen that message.

Thursday, June 6, 2013

Fix error 0x000006d1 using level 3 print drivers from Samba to Windows 8

Ran across error 0x000006d1 when attempting to add Samba shared printers to Windows 8 systems. The following fixed the issue for me. This may also help for earlier versions of Windows but I've only run across the problem with some (not all) Windows 8 systems.

Tuesday, September 18, 2012

nVidia with Ubuntu - no X or low graphics mode

After updates and a reboot, Ubuntu 12.04(.1) reports low graphics mode and/or X does not start when using the nVidia driver.

I've seen this problem on two systems recently and it appears to be a timing issue in that the nVidia driver does get loaded but apparently not in time for X to find a valid screen.

Workaround is simple: add nvidia to the file /etc/modules it will then get loaded on boot and X will start normally.

Monday, May 28, 2012

EFI Stub - booting without a bootloader

In this post I'm detailing a quick and easy method to use EFI Stub boot introduced in the Linux kernel version 3.3.0 that provides for a faster boot without the use of a bootloader (such as grub) on a UEFI capable system.

Friday, March 2, 2012

no bootable device - gpt

Some legacy BIOS's may have an issue with a GPT partitioned drive.

Ran across this recently with an Intel D975XBX board. I GPT partitioned a drive with gdisk, installed Ubuntu and when I rebooted after the install completed with surprised to see "No Bootable Device..." displayed.

Thursday, October 27, 2011

CUPS Samba 64bit automatic driver download

The same ease of using Samba hosting for automatic download of the CUPS/Windows Postscript drivers for 32 bit clients can be implemented for 64 bit clients as well.

Sunday, April 17, 2011

NT4 inaccessible_boot_device

I recently needed to boot a cloned image of an old NT4 system under a virtual machine. Of course, nothing is easy sometimes. In this case I was using VirtualBox as between it and Qemu(KVM) it seemed to have the best support for NT4. However it didn't emulate the Adaptec SCSI hardware that the original system used and boot attempts were met by the famous BSOD with inaccessible_boot_device. Loading up a new VM with NT4 and booting with /sos (selecting VGA mode is one way) to see what drivers were being loaded the difference was that the new install loaded ATAPI.SYS and the cloned image was loading AIC78xx.SYS, which gave me an idea. I booted the cloned image from a SystemRescueCD mounted the "C:" drive with ntfs-3g and copied the ATAPI.SYS driver over the AIC78xx.SYS driver as AIC78xx.SYS and voila, the system now boots! Not claiming this will work in every case but it did work in this one.