After install of 12.04, I get message: error: unknown filesystem. Dual booting.
UbuntuThis forum is for the discussion of Ubuntu Linux.
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
After install of 12.04, I get message: error: unknown filesystem. Dual booting.
I'm dual booting with Win 7. Have had 32 bit version working fine, but wanted to use 64 bit. I deleted / directory, but left /home alone. On reboot I get "error: unknown filesystem" message.
You mean after deleting / you get unknown filesystem?
Did you install 64-bit after deleting, or did you delete & expect it to boot with no grub as grub is usually part of /.
Distribution: Slackware (mainly) and then a lot of others...
Posts: 855
Rep:
Hi there and welcome to LQ.
Well as said in the previous post when you delete the / of linux evrthing is deleted and so no boot is possible.
Use a live cd/dvd and back up your /home (if you feel that your data is important. Then you would have to reinstall linux.
Hope this helps
The Master Boot Record (MBR) is on the first sector of /dev/hda. It was not on the / partition where I had Ubuntu installed. I did not delete that sector. I did delete the / partition which was on /dev/sda7 where the OS was priviously installed. I left /home alone. It was on /dev/home on /dev/sda5.
Thanks for the welcome, honeybadger. I did backup /home before I began the install process. When I check gparted on the machine I am now on, which is running the 64 bit version of Ubuntu 12.04, I get the following location for the boot sector:
/dev/sda1 is the only partition with a "boot flag"
The Master Boot Record (MBR) is on the first sector of /dev/hda. It was not on the / partition where I had Ubuntu installed. I did not delete that sector. I did delete the / partition which was on /dev/sda7 where the OS was priviously installed. I left /home alone. It was on /dev/home on /dev/sda5.
Thanks for the welcome, honeybadger. I did backup /home before I began the install process. When I check gparted on the machine I am now on, which is running the 64 bit version of Ubuntu 12.04, I get the following location for the boot sector:
/dev/sda1 is the only partition with a "boot flag"
The MBR doesn't contain grub it only points to it, Your grub was in your / partition.
If you already have your installation media then you can go ahead & reinstall os.
How did you backup home directory? Just the files or an image of the partition?
Also linux doesn't care about the boot flag. It redirects to whatever partition grub was installed to.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.