Unable to boot after installing Ubuntu

405 pts.
Tags:
BIOS
Intel
Mac OS
Ubuntu
User Network Interface
i had mac installed in a pc. I had to uninstall it and installed ubuntu. now the pc wont load automatically using the HD. its trying to load the network interface first but that is not successful.

i have disable the network boot,but still the PC shows boot failure. So now i had to load the ubuntu directly using boot menu when the computer restarts.

{ checked bios for boot device priority,checked disk configuration for native (its native) . Pls help !!

board is intel DG41RQ

 



Software/Hardware used:
ubuntu,Intel,mac

Answer Wiki

Thanks. We'll let you know when a new response is added.

Is there any error message on the screen? if so tell us what it says.

Looks like the bootloader is not correctly installed, it is recommend to reinstall grub.
Take a look at this <a href=”https://help.ubuntu.com/community/GrubHowto#Command%20line”>guide</a>

Regards

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  • saturno
    I second what Mariodlg said: Reinstall the boot sector on that HDD, and you'll be done.
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  • RamseyB
    Make sure you have checked F2 or whatever it is for your BIOS and make sure that for some reason NETWORK did not get to the top of priority list above HDD.
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  • RamseyB
    sorry don't read very well, lol. Since you have already done that you could do what the others have said or you could do the opposite of what I do when a MBR (windows boot mgr) fails on me. When that happens I load ubuntu then reload windows. The Ubuntu completely overwrites the MBR so when I reload Windows no stupied little setting is messing me up. So for you I would load a Windows or DOS OS on there then reload the Ubuntu. What could have happened is that Linux and Mac's Boot Records are similar that you have something hanging on.
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  • Subhendu Sen
    U r requested to redirect here, If u have Grub Error And if u have MBR problem then Link Here and observe only for FixMbr
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  • Jibin
    @mariodlg ... The message after disabling 'boot from network' is "Bootable device not detected" @all... i told my employee workin on that pc to continue workin and boot manually the HD. so now whatever i have to do i should try my best, not to uninstall the OS.
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  • Subhendu Sen
    Try to check the HDD or see the BIOS boot sequence ! I know this is very silly reply, but u have to check. If possible, detach the HDD and insert into another computer as slave (recommended os may be XP/Linux) and try to mount it. If it is okay, then change the cable
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  • Jibin
    @Rechil....i had already checked the boot sequence and done it now once again..... maybe u din understand my query .. again..!! i have no problem in mounting my HD . but , the problem is that i have to select the boot device option everytime i switch on the PC. is ter any solution for that ..??!!!
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  • petkoa
    How much HD are there on the PC? In some recent BIOSes you have a "two step" procedure for selecting the boot device - first, you select sequence of network, harddisks, cd, usb, removable devices (floppies, I guess), and then, if you have more than one device in some classes, you have to select the one (harddisk, NIC adapter, etc) which will be used for booting... A propos, in my case, I had 4 disks and wanted to boot from an usb stick - it appeared not under usb devices, but as a fifth harddisk (btw, an Intel 3420 chipset MB), and I had to select just one of them to boot from. Good luck
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  • Stevesz
    Your machine is seeing a hard drive there, but it is not recognizing the boot record. If repairing the boot record, as has been discussed above is not giving the desired result, replace the drive and re-install Ubuntu to resolve your issue. Just because your HDD is recognized by the machine does not mean it is healthy or even in good shape. The recognition comes from the circuitry on the HDD itself. I've seen HDD's that are all but dead and buried being recognized, but that is the only thing they are capable of, being recognized. Replacement may be the only option that you have.
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  • Sixball
    Agree w/ Stevesz: If you can read the HDD but cant boot to it, then your MBR is hosed. Good thing you can still access the drive - grab all your data off of it and either fix the MBR, or wipe it and rebuild it from scratch. Worst case: replace the drive. Hard Drives have a 100% failure rate - its not "IF" but "WHEN"...
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  • Jibin
    @Petkoa.....terz only 1 HD and i am using the same board and configuration for all my PCs in the office. @StevesZ & sixball..... Replacing the Hd is the last step....and just making it clear that i dont have problems in reading the ubuntu OS from the HD. ie: the OS is all working fine . The only problem is that the bios does not detect the hard disk AUTOMATICALLY at startup. So, is ter any change i should make to the boot related files (in Ubuntu)
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  • petkoa
    May be at some point during ubuntu install you have booted from a flash drive and this was remembered in the nvram?
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  • valmsmith
    This sounds much like a problem I have encountered with Novell's Linux OS and Windows. When I removed the Linux from the drive, it would no longer auto boot. I first tried rebuilding the boot loader. Without the linux OS on the drive, the boot loader simply would NOT boot due to no choices and Linux not being there. I ended up formatting and reinstalling XP, and once again the drive worked just fine. Yeah, it sounds to me as though your drive is fine, just needs a (little?) more tweaking ;<)
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  • Subhendu Sen
    Sorry, I could not understand ur Q at first time. Please don't change the HDD, it may possible to overcome the issue. There is no fault in ur HDD. The same problem which I faced earlier and resolved by just using Windows 98 CD. Insert windows 98 CD/ DVD into the CD/DVD drive. and at boot time select Start computer with CDRom support. It shows A: now type fdisk and there r options from where u can completely delete the partitions and make the HDD as raw. Now again try to install ubuntu and this time u may overcome the issue. U can also use low level format tool for this purpose.
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  • valmsmith
    I am once again bouncing off a couple of these answers, the one I am having the most trouble with is the one about "The drive MIGHT still be readable once you are able to mount it, BUT it will not boot correctly. It sounds to me like you have a drive that is dying a slow death. There is a program out there named "Spin Rite" which WILL get a drive up and running again, if for no other reason to make sure you are going to be able to transfer all your data from the weak drive. It sounds a little suspicious that you are NOT having a similar problem with other like PCs yet this one is acting this way, making it sound like the drive IS in fact on the way out. Spin rite can be obtained at :
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  • petkoa
    Lot of interest to this unbooting drive... BTW, is it possible that no partition is marked active on the drive after repartitioning for Ubuntu install? I know, this is silly - BIOS should not be interested in active or inactive partitions when transferring control to MBR - but sily things happen on a daily basis! Petko
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  • Jibin
    @petkoa .... NO flash drive used....and the partition is active and running when selected manually ... @Rechil ...... I have told that since the Employee is working on that PC , Reinstalling the OS would be a great headache (better i leave it to the emp. to tap F10 at the startup ...!! ) .. :) @Valmsmith .... I am dwnldin the spinrite app now and will let u know the result...(it would help if u could temme the exact thing u intend to do here)
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  • Subhendu Sen
    @Jibin, please read the following below carefully.... Ubuntu starts almost always with the CD in okay and am I right..... When u remove CD and Ubuntu continues to function !! After starts once in a day, Is it possible to restart without CD again in the same day !! Is it possible to Hibernate without CD and it wakes !! if Hibernate works, u may proceed for the same. Is there only one PC creates problem or several PC behaves like this !! If the above is okay, go to BIOS and disable all boot options else HDD and observe if ubuntu starts well or it shows the "boot failure" message. If it shows any error message, I suspect the problem is on ur motherboard. If the matter like this, u may download for Motherboard Test Bootable SW, which ensures about ur motherboard and it is free to download.
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  • Jibin
    @reschil....several PC`s have the same problem..... and wat is it that u want me to do..... boot ubuntu from a CD ..?? Disable all devices in bios..?? and after that ..??
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  • Subhendu Sen
    @Jibin, No, I wanted to tell u to do..... Disable all boot options other than HDD, i.e set the boot sequence as, the computer only can boot from HDD and nothing ! and see if it is started to boot from HDD where ubuntu is already loaded. If it does not work, it shows any "Boot failure message". If that situation, I suspect the problem is on the motherboard (may be). If the matter like this, u may download for Motherboard Test Bootable SW (famously known as MOBO), which ensures about ur motherboard and it is free to download. OR Is it possible to Hibernate without CD and it wakes !! if Hibernate works, u may proceed for the same. Thanks
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  • carlosdl
    It seems to be a serious communication problem going on here...
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  • Koohiisan
    @Petkoa I believe only Windows cares if a partition is marked as 'Active'/bootable. Linux doesn't. So, it sounds like: 1) GRUB is toast and needs to be repaired, and 2) the Ubuntu CD offers a 'boot from hard drive' option that does what GRUB *should* be doing and passes the boot process off to his hard drive. So, if that is correct, then the ultimate solution is to reinstall GRUB. @Jibin, Did you attempt the instructions that Mariodlg provided in the link in the answer? What was the result? If there were errors, could you please post them for us?
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  • Koohiisan
    @Jibin, By the way, when I asked about following the instructions, I was referring specifically to the 9 steps in the section labeled "Command line" in the guide. It'll be at the top if you use the link in the answer wiki.
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  • Subhendu Sen
    @Koohiisan, Jibin already cleared that, there was no GRUB error ! Petkoa just guessed I think....
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  • Koohiisan
    @Rechil There aren't too many different situations that match what we *do* know so far. I'm not so much suggesting that there is a GRUB 'error' message, but that the PC is not finding GRUB on the first boot device, and so is passing the boot process down the line until it tries PXE and gives up. If that's the case, then there is an 'error' in the way GRUB has been installed/set up. The fact that booting from a CD works and passes the boot process on to the hard drive seems to point to the drive being visible to the BIOS, etc. We're missing either the boot sequence, or the boot loader (which in this case is GRUB!). So, as I mentioned, I would love to hear whether the OP tried the link in the answer wiki and, if so, what the specific results were. We can't really troubleshoot this further without more specifics.
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  • Jibin
    ho.....finally it worked....... i went to the bios ... made boot conf to advanced....enabled all under that .... now made boot conf back to normal (now all options are back to default .. i think ) and restarted...... :) now it boots automatically......
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  • Jibin
    found : enable UEFI in bios ..... :D
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  • Subhendu Sen
    @Jibin, Excellent response ! I am glad to know that, ultimately the problem was solved.... Thank U once again. :)
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  • Jibin
    Thank you all for all the help and it was a gr8 ride of knowledge for me ..... !!!
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  • Sixball
    Thanks for sharing the resolution! :)
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