On 06/14/2015 08:02 PM, Animesh Pandey wrote: > On Sun, Jun 14, 2015 at 9:47 PM, jd1008 <jd1008 at gmail.com> wrote: > >> >> On 06/14/2015 07:36 PM, Animesh Pandey wrote: >> >>> On Sun, Jun 14, 2015 at 9:06 PM, jd1008 <jd1008 at gmail.com> wrote: >>> >>> >>>> On 06/14/2015 06:47 PM, Animesh Pandey wrote: >>>> >>>> I actually opened the Virtual Disk Image (.vdi) on >>>>> http://www.vmxray.com/ >>>>> . >>>>> I could see that despite my disk being of 100GB only ~65GB was being >>>>> shown. >>>>> All the stuff related ot the local user was not visible at all. >>>>> After I restarted my VM, the OS gets stuck here ( >>>>> http://i.stack.imgur.com/KVYxV.png). Even after trying the single user >>>>> login it was stuck there. But the emergency mode worked alright. >>>>> >>>>> On Sun, Jun 14, 2015 at 8:37 PM, jd1008 <jd1008 at gmail.com> wrote: >>>>> >>>>> >>>>> On 06/14/2015 06:28 PM, Animesh Pandey wrote: >>>>>> Hi, >>>>>> >>>>>>> I am working on Centos6.6 on a VirtualBox on Windows Host. Today I >>>>>>> started >>>>>>> to have booting issues in the OS. It won't get past the loading >>>>>>> screen. >>>>>>> I >>>>>>> checked and found that the files related to the user "cloudera" on the >>>>>>> system were not accessible. Only the files related to root were >>>>>>> accessible. >>>>>>> This is why I was am not able to do a single user login but an >>>>>>> emergency >>>>>>> login was possible. This is just a guess. >>>>>>> This all happened due to some update in the Virtual Machine that I use >>>>>>> to >>>>>>> run CentOS. >>>>>>> >>>>>>> Is there any workaround for this issue? >>>>>>> >>>>>>> Thanks and regards, >>>>>>> Animesh Pandey >>>>>>> >>>>>>> I wish you could provide more info. >>>>>>> >>>>>> How can you determine that inaccessibility to a user's >>>>>> files will prevent centos from taking you all the way to >>>>>> the login (or welcome) screen? >>>>>> >>>>>> I think something else is going on and my guess is that >>>>>> the centos files themselves have been corruped. >>>>>> Can you re-install centos ? >>>>>> >>>>>> Please do not top-post. >>>> I am having trouble following your terminology. >>>> Emergency model? >>>> On my centos installation, there is no "Emergency ...." >>>> to select from the list of kernels to boot. >>>> >>>> Also, when you say "worked alright" do you >>>> mean that you were able to access what you thought >>>> was missing? >>>> Can you go to full multiuser? >>>> >>>> >>>> >>>> Sorry for top posting. >>> Let me give you a clearer idea. >>> >>> 1. My regular boot freezes after loading is completed. >>> 2. I read on the internet that sometimes due to an update in VirtualBox, >>> this error might occur. To rectify it, I must re-install VirtualBox's >>> Guest >>> Additions. For this, I require booting in a Single User Mode. >>> 3. For that, I followed the correct steps as given here ( >>> >>> https://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-booting-single.html >>> ). >>> But still the system froze on that same point. >>> 4. Then I read about an Emergency mode which is even lower level to that >>> of >>> Single User mode. I was able to log in and see the files that I >>> created/modified as root. I could not see any file/folder that related the >>> local user "cloudera" on which I used to work. This is where I thought of >>> seeing the contents of the Image using vmxray.com and found that a large >>> part of the dick is not visible. This part contains that files related to >>> "cloudera". I felt as if any information related to "cloudera" user has >>> been lost. >>> >>> I basically need to access files that I made as "cloudera" on CENTOS and >>> if >>> possible re-install the Guest Additions that ma solve this issue. But for >>> this I need to be able to boot as a Single User. >>> >> I assume you are using a virtual drive, which is a file on the host >> machine (You said windows??? ). >> If you can somehow use a tool to dump that disk image to >> a real hard drive (for example using dd ), and connect >> the hard drive a a working linux computer to run fsck on it >> to see what it will find. >> I assume you have no backup of your drive??? >> >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > Yes it is windows. By dumping a disk image do you mean a VDI (VirtualBox > Disk Image). These are files that are used by VirtualBox for booting. I > have a copy of that as well. Can Gparted be used for connecting that VDI? > You will more than likely need a conversion tool to convert a vdi image to a normal HD image. I do not know of such a tool. Another possibility is to create another VM, install your linux on it with it's own separate disk, but add you bad vdi disk as a second drive. Once booted, use linux to fsck the second drive. Again, be sure you have a copy it before you connect it to this new VM.
