Re: Help really needed: Formatted / partition by accident.
On 6/2/06, nick lidakis <[EMAIL PROTECTED]> wrote: Tried booting after recovering but no luck. Maybe I need to reinstall grub? In my case, TestDisk renumbered the partitions, so I had to edit /boot/grub/menu.lst and /etc/fstab accordingly. Compare the actual partition numbers with those shown in your configuration files. -- With best regards, Dmitri Minaev -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
Dmitri Minaev wrote: I am afraid that nothing can be done to recover this installation. You still can try to recover some of your data. If your partition table is damaged, you may find TestDisk useful. See: http://www.cgsecurity.org/wiki/TestDisk TestDisk has helped me to recover my data when I occasionally dd'ed a floppy image onto /dev/hda. OK, TestDisk was able to recover all three partitions. /, swap & home. Really amazing free (he's getting a donation for sure) software. As a backup measure I copied all of home to an external hard disk. Cfdisk shows (just to double check, didn't write anything) / as bootable, the swap and home partitions. Tried booting after recovering but no luck. Maybe I need to reinstall grub? Thanks for all the help and suggestions. Really appreciated. Nick -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
I am afraid that nothing can be done to recover this installation. You still can try to recover some of your data. If your partition table is damaged, you may find TestDisk useful. See: http://www.cgsecurity.org/wiki/TestDisk TestDisk has helped me to recover my data when I occasionally dd'ed a floppy image onto /dev/hda. -- With best regards, Dmitri Minaev -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
On 5/29/06, Christopher Nelson <[EMAIL PROTECTED]> wrote: On Mon, May 29, 2006 at 04:22:29PM -0400, nick lidakis wrote:> Kilian wrote: [snip details of recovering system]> >That should be it. You'll lose your old root-partition (which you> >already did, I think, by installing monowall on /dev/sda1) and your > >old /usr partition. You should be able to keep /home.> >> >If there's anything important on /usr, you can of course save that as> >you can still access this partition with the rescue cd. > >> >>Any help at all would be appreciated!> >> >HTH> >> >-- Kilian> >> >> I think I lost everything. When I cfdisk /dev/sda in and ubuntu live cd > there is only one partition labeled as FreeBSD (monowall is based on> frebsd) filesystem. The rest of this disk is labeled as free space.don't despair just yet. It was mentioned earlier that parted can recover data on partitions (I've not used it, so don't ask me how) --and if you have an Ubuntu CD you can issue 'apt-get install parted' andthen do a 'man parted' and read docs in '/usr/share/doc/parted' to figure out how to use it.--Christopher Nelson -- [EMAIL PROTECTED]---"Neighbors!! We got neighbors! We ain't supposed to have any neighbors, and I just had to shoot one." -- Post Bros. Comics--To UNSUBSCRIBE, email to [EMAIL PROTECTED]with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]The rescue command in parted seems to be what you're looking for, info on its usage can be found here: http://www.gnu.org/software/parted/manual/html_chapter/parted_2.html#SEC24 :)
Re: Help really needed: Formatted / partition by accident.
On Mon, May 29, 2006 at 04:22:29PM -0400, nick lidakis wrote: > Kilian wrote: [snip details of recovering system] > >That should be it. You'll lose your old root-partition (which you > >already did, I think, by installing monowall on /dev/sda1) and your > >old /usr partition. You should be able to keep /home. > > > >If there's anything important on /usr, you can of course save that as > >you can still access this partition with the rescue cd. > > > >>Any help at all would be appreciated! > > > >HTH > > > >-- Kilian > > > > > I think I lost everything. When I cfdisk /dev/sda in and ubuntu live cd > there is only one partition labeled as FreeBSD (monowall is based on > frebsd) filesystem. The rest of this disk is labeled as free space. don't despair just yet. It was mentioned earlier that parted can recover data on partitions (I've not used it, so don't ask me how) -- and if you have an Ubuntu CD you can issue 'apt-get install parted' and then do a 'man parted' and read docs in '/usr/share/doc/parted' to figure out how to use it. -- Christopher Nelson -- [EMAIL PROTECTED] --- "Neighbors!! We got neighbors! We ain't supposed to have any neighbors, and I just had to shoot one." -- Post Bros. Comics -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
Kilian wrote: nick lidakis wrote: I was having trouble with my monowall router running off a compact flash. I decide to reinstall the monowall boot image onto the CF card. In the process I must have mistyped and accidentally wrote the image to my boot partition i.e. /dev/sda1. The machine now boots into monowall instead of Grub. Using Google, I can only find articles or HOWTO's on recovering a corrupt or overwritten master boot record. It sounds as if you have created a new filesystem on /dev/sda1 which used to be your root partition, so it's not only an issue with the MBR. For the rest of my answer, I am assuming this. > When I did the initial installation with the latest the net install cd I chose the default desktop partition scheme, which I believe (if I am not mistaken) was /, /usr, and a home partitions. / would have my kernels, root directory and grub. So my question is, how do I proceed? I can use a rescue CD to boot into the system and mount /, but how would I reinstall what would normally be in /? Do I do a reinstall and skip formatting / home? You could boot from the rescue CD (assuming it's a Debian one) and mount /dev/sda1 to, say, /mnt/sda1. Then you do 'debootstrap /mnt/sda1' which will install a Debian System on /mnt/sda1 (your / partition), then chroot into /mnt/sda1, adjusting your bootloader config and run the bootloader to install the MBR. Of course you can keep your /home - just mount it into the new system. With the partition used as /usr it's going to be a bit more difficult as it contains system files from your old installation; if you can, wipe it out and use it as /usr in your new system. So basically you'd do (from the rescue system): $ mkdir -p /mnt/sda1 $ mkfs -t ext3 /dev/sda1 # this will destroy your monowall # installation $ mount /dev/sda1 /mnt/sda1 $ mkdir /mnt/sda1/home $ mount /dev/sdaX /mnt/sda1/home # sdaX is the partition where /home # resides $ mkfs -t ext3 /dev/sdaY # sdaY is the partition used as /usr # everything that used to be on /usr will # be destroyed $ mkdir /mnt/sda1/usr $ mount /dev/sdaY /mnt/sda1/usr $ debootstrap /mnt/sda1 $ chroot /mnt/sda1 [configure your bootloader] [run bootloader] [adjust fstab]: /dev/sda1 / ext3 defaults0 0 /dev/sdaX /home ext3 defaults0 0 /dev/sdaY /usr ext3 defaults0 0 /dev/sdaZ none swap sw 0 0 proc/proc proc defaults0 0 $ exit $ reboot That should be it. You'll lose your old root-partition (which you already did, I think, by installing monowall on /dev/sda1) and your old /usr partition. You should be able to keep /home. If there's anything important on /usr, you can of course save that as you can still access this partition with the rescue cd. Any help at all would be appreciated! HTH -- Kilian I think I lost everything. When I cfdisk /dev/sda in and ubuntu live cd there is only one partition labeled as FreeBSD (monowall is based on frebsd) filesystem. The rest of this disk is labeled as free space. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
nick lidakis wrote: I was having trouble with my monowall router running off a compact flash. I decide to reinstall the monowall boot image onto the CF card. In the process I must have mistyped and accidentally wrote the image to my boot partition i.e. /dev/sda1. The machine now boots into monowall instead of Grub. Using Google, I can only find articles or HOWTO's on recovering a corrupt or overwritten master boot record. It sounds as if you have created a new filesystem on /dev/sda1 which used to be your root partition, so it's not only an issue with the MBR. For the rest of my answer, I am assuming this. > When I did the initial installation with the latest the net install cd I chose the default desktop partition scheme, which I believe (if I am not mistaken) was /, /usr, and a home partitions. / would have my kernels, root directory and grub. So my question is, how do I proceed? I can use a rescue CD to boot into the system and mount /, but how would I reinstall what would normally be in /? Do I do a reinstall and skip formatting / home? You could boot from the rescue CD (assuming it's a Debian one) and mount /dev/sda1 to, say, /mnt/sda1. Then you do 'debootstrap /mnt/sda1' which will install a Debian System on /mnt/sda1 (your / partition), then chroot into /mnt/sda1, adjusting your bootloader config and run the bootloader to install the MBR. Of course you can keep your /home - just mount it into the new system. With the partition used as /usr it's going to be a bit more difficult as it contains system files from your old installation; if you can, wipe it out and use it as /usr in your new system. So basically you'd do (from the rescue system): $ mkdir -p /mnt/sda1 $ mkfs -t ext3 /dev/sda1 # this will destroy your monowall # installation $ mount /dev/sda1 /mnt/sda1 $ mkdir /mnt/sda1/home $ mount /dev/sdaX /mnt/sda1/home # sdaX is the partition where /home # resides $ mkfs -t ext3 /dev/sdaY # sdaY is the partition used as /usr # everything that used to be on /usr will # be destroyed $ mkdir /mnt/sda1/usr $ mount /dev/sdaY /mnt/sda1/usr $ debootstrap /mnt/sda1 $ chroot /mnt/sda1 [configure your bootloader] [run bootloader] [adjust fstab]: /dev/sda1 / ext3 defaults0 0 /dev/sdaX /home ext3 defaults0 0 /dev/sdaY /usr ext3 defaults0 0 /dev/sdaZ none swap sw 0 0 proc/proc proc defaults0 0 $ exit $ reboot That should be it. You'll lose your old root-partition (which you already did, I think, by installing monowall on /dev/sda1) and your old /usr partition. You should be able to keep /home. If there's anything important on /usr, you can of course save that as you can still access this partition with the rescue cd. Any help at all would be appreciated! HTH -- Kilian -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
Re: Help really needed: Formatted / partition by accident.
nick lidakis wrote: > I was having trouble with my monowall router running off a compact > flash. I decide to reinstall the monowall boot image onto the CF card. > In the process I must have mistyped and accidentally wrote the image to > my boot partition i.e. /dev/sda1. The machine now boots into monowall > instead of Grub. > > Using Google, I can only find articles or HOWTO's on recovering a > corrupt or overwritten master boot record. When I did the initial > installation with the latest the net install cd I chose the default > desktop partition scheme, which I believe (if I am not mistaken) was /, > /usr, and a home partitions. / would have my kernels, root directory and > grub. > > So my question is, how do I proceed? I can use a rescue CD to boot into > the system and mount /, but how would I reinstall what would normally be > in /? Do I do a reinstall and skip formatting / home? > > Any help at all would be appreciated! > > Check out parted. It can do partition rescues. -Roberto -- Roberto C. Sanchez http://familiasanchez.net/~roberto signature.asc Description: OpenPGP digital signature
Help really needed: Formatted / partition by accident.
I was having trouble with my monowall router running off a compact flash. I decide to reinstall the monowall boot image onto the CF card. In the process I must have mistyped and accidentally wrote the image to my boot partition i.e. /dev/sda1. The machine now boots into monowall instead of Grub. Using Google, I can only find articles or HOWTO's on recovering a corrupt or overwritten master boot record. When I did the initial installation with the latest the net install cd I chose the default desktop partition scheme, which I believe (if I am not mistaken) was /, /usr, and a home partitions. / would have my kernels, root directory and grub. So my question is, how do I proceed? I can use a rescue CD to boot into the system and mount /, but how would I reinstall what would normally be in /? Do I do a reinstall and skip formatting / home? Any help at all would be appreciated! -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
