How To Fix Grub Rescue > Unknown Filesystem ??

Hi, yesterday I decided to install Deepin in a dual boot. I later decided I no longer needed/wanted it so I deleted the partition. Apparently I had grub on that partition as well, and now my laptop only goes to grub rescue and will not boot.
I have an acer aspire v5 touch. Removing the hard drive is not an option. I have tried to access UEFI but my computer just beeps and goes to grub rescue. I have grub rescue disk on a flash drive, I used unetbootin to do that, but iI cannot get to any boot menu (f12), and when I use ls (hd0)/ I get a unknown file system error. Please help, and sorry for my grammar/formatting, I'm on mobile.
Tl;dr: Deleted partition containing grub and deepin, now can only get to grub rescue, and I keep getting an unknown file system error, please help.

Hello!

TL;DR: Deleted Linux partition from Windows. Stuck at Grub rescue prompt.

I'm sorry to trouble you guys, because I'm an idiot.

So I'm wanting to dual-boot Kalilinux and Windows 8.
I went through the steps such as creating a bootable USB, changing the
boot order and so on. I get into Kali, start Gparted and try to partition stuff.

I'm far from an expert, so I wasn't sure what to do. Long-story short, I
didn't seem to get Kali installed correctly, due to something with an EFI
drive being required. So I boot into windows and then stupidly, because it said in the guide,try to "uninstall" Kali by removing it's partition, inside Win8 haha... So I did.

Now I simply get the Grub rescue command prompt when I boot from the same
USB and I have no idea how to fix it. I've run bootrec.exe/fixmbr in Windows haha,
for what it's worth. However Grub can't find any partition it says.

In windows, I have like... 2-3 Recovery partitions. Does anyone know how to remove
them??? I've tried to clear as much as I can, besides the C drive and Auxillary D drive.

Any advice would be very appreciated.

I have tried installing a Ubuntu OS onto a partition (sda3).
When I had difficulties with the install, I decided to delete everything from the partition.

But now when I boot the computer, I get taken to the 'grub rescue' prompt.
I have tried to find grub in my other partitions (sda1 and sda2).
However, the command 'ls (hd0,msdos1)/' for example, does not show a grub directory.
It must've transferred grub to sda3 somehow and now I've deleted it.

I have debian live USB and am trying to install grub with:
Code:

apt-get install-grub /dev/sda

But I get the error message:
Code:

bash: grub-install: command not found

So now I don't know what's going on. Can anyone please help?

hiiii all

I had installed Windows 7 on /dev/sda1 and /dev/sda2 and then I installed Centos 7.
Since then I cant find Windows entry in the Grub.
And i had tried to use all kind of solution found on the net I still cant see any entry.
I had edited 40_custom script adding:

cat <<EOF
menuentry "windows 7" {
insmod part_msdos
insmod ntfs
set root='hd0,msdos1'
search --no-floppy --fs-uuid --set=root FCDAE998DAE95006
chainloader +1
}
EOF

then this command grub2-mkconfig -o /boot/grub2/grub2.cfg

[root@localhost]# grub2-mkconfig -o /boot/grub2/grub2.cfg
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-3.10.0-123.el7.x86_64
Found initrd image: /boot/initramfs-3.10.0-123.el7.x86_64.img
Found linux image: /boot/vmlinuz-0-rescue-93890f189dec4b309c004fdce969ca5a
Found initrd image: /boot/initramfs-0-rescue-93890f189dec4b309c004fdce969ca5a.img

then this
[root@localhost]# tail -10 /boot/grub2/grub.cfg
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
[root@localhost]#


Still cant find windows in grub
please help me with this guys
thanks

Machine is booted into Grub Menu
I am using rescue linux

by doing fdisk -l

it shows
Disk /dev/sda : bla bla bla
Device Boot
/dev/sda1 *

so i install grub using this command in shell

grub-install /dev/sda1

it shows

installation finished. No error reported
This content of the device map /boot/grub/device.map


After re-boot it again shows grub menu

Help!! In 12.04.5 Ubuntu, the /boot directory was full and had a lot of duplicate files from different dates, some I thought were unnecessary headers of updates. However, one series of files was called vmlinuz-3.2.0-29-generic. I moved all the files to /obsolete_files. I rebooted after having trouble upgrading packages (I think this is a second problem with this machine). I now get the following prompt.
grub rescue>

Is there a way to access the directory system so that I can move those files back? I really only need to retrieve one or two files off the system.

Code:

grub rescue>ls
(hd0) (hd0,msdos5) (hd0,msdos1) (fd0)

It doesn't under boot, or insmod. I can set prefixes. Am I doomed?

I have setup a dual boot system with Fedora 21 and Arch Linux. The problem is that Fedora doesn't see my encrypted Arch installation. The installations are on separate partitions and do not share anything apart from hard disk space. I have run the following commands as root in Fedora:

Code:

grub2-install /dev/sda

Code:

os-prober

Code:

grub2-mkconfig -o /boot/grub2/grub.cfg

When I rebooted, Fedora was the only OS entry showing in the GRUB menu.

There was a suggestion from one of the members of the Arch forums that I should write the entry myself into /etc/grub.d/40_custom and then re-build the grub configuration or take the Arch entry from Arch's /boot/grub/grub.cfg and just paste it into the 40_custom in Fedora and rebuild.

How do I boot from a live Arch USB stick into the installed Arch and do as stated above? How would it work? Thanks in advance for your replies.

Hello all,

I am new to linux but not new to PC's.

I am self taught in everything i know so far.

I have an issue i am looking for some guidance on, i have burned an ISO copy of AVLinux & booted from the Live DVD.

chose to install on partition & created all the necessary file systems etc with GParted then proceeded with the install.

Completed install but when i try to boot no joy.

I have EasyBCD installed on Vista to manage to boot processes.

I am able to get to Grub4dos window & grub> prompt.

I have tried many commands of which i have identifeid the partition is there as correct filesystem, when running the /vmlin....TAB command it locates the name of the linux distro, if i set the drive partition to makeactive it boots up saying no operating system them have to change it back to Vista.

I have two pics that show the grub configuration reading from the live DVD, the install appears to have some missing or not right as opposed to the DVD, can anyone assisst how i can fix this issue?

Do i have to copy each file over manually from the Live DVD's folders?

Cant attach images here so here is the differeneces,

these are the listing on the Grub configuartion being read using the Live DVD,

1. /etc/grub.d
2. /boot/grub/device.map
3. grub-install
4. grub-mkconfig
5. grub-mkdevicemap--device
6. grub-mkfont
7. /boot/grub
8. /boot/grub/grub.cfg
9. /etc/default/grub

Here is what way they are on Live DVD,

1. Present
2. Present
3. Present
4. Present
5. Present
6. Present
7. Present
8. Yellow information bubble
9. Present

My install on partition,

1. Present
2. Yellow information bubble
3. Red X bubble
4. Red X bubble
5. Yellow information bubble
6. Present
7. Yellow information bubble
8. Yellow information bubble
9. Present

what do i need to do to remedy this?

i have attempted the install on couple of different drives, no success.

I have a dual boot laptop with debian stable & Windows 7.

The HD partitions a
sda1: NTFS for W7
sda2: FAT32 (currently unused)
sda3: linux /boot
sda4: linux ext4, which is LVM with encryption

I've re-installed W7 and now need to recover the MBR & grub menu.

I've booted with the netinst usb in rescue mode, but it fails to mount the root partition /sda4:
"An error occured while mounting the device you entered for your root file system (/dev/sda4) on /target"

and /var/syslog shows:
Code:

rescue-mode: selected root device '/dev/sda4'
umount: cant umount /target: Invalid argument
isofs_fill_super: bread failed, dev=sda4, iso_blknum=16, block=32
EXT2-fs (sda4): error: unable to readsuperblock
EXT3-fs (sda4): error: unable to readsuperblock
rescue: mount: mounting /dev/sda4 on /target failed: Invalid argument

So it seems like something is wrong with the mount command?

Would appreciate suggestions how to solve this.

Thanks

After creating a bootable usb using Universal USB Installer. I booted up the sytstem (Dell Inspiron N4110) F12 boot on usb, did the install, everything went well until after copying files and then the error message that "The grub-pc package failed to install into /target.. So i continued without a boot loader and now am trying to figure out how to get it back.
Previously i did a perfect dual boot of Kali Linux wherein the Grub boot loader was present. I did however uninstall Kali, reclaim HDD space, and even use EasyBCD to remove Grub(i believe).
Also worth noting is that before this dual boot with pignuy and after uninstalling kali linux i did a complete reinstallation of my windows 7 system using the recovery HD.

Now i would like to know how i could get grub boot loader back onto my system so that i can boot up Pinguy OS. Thanks