Dual Boot Windows7 With With Centos7

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


Similar Content



Grub-mkconfig Menu Changes

I want to change the menu on a Suse 12 Enterprise system.
I edit the /etc/default zip12grub.conf file execure grug2-mkconfig. Then reboot the system and no changes occur. The zip12grub.conf seems like the correct file to update so I am at a loss as to what the correct process would be.

cat zipl2grub.conf
## This is the template for '@zipldir@/config' and is subject to
## rpm's %config file handling in case of grub2-s390x-emu package update.

[defaultboot]
defaultmenu = menu

[grub2]
target = @zipldir@
ramdisk = @zipldir@/initrd,0x2000000
image = @zipldir@/image
parameters = "root=@GRUB_DEVICE@ @GRUB_EMU_CONMODE@ @GRUB_CMDLINE_LINUX@ @GRUB_CMDLINE_LINUX_DEFAULT@ initgrub quiet splash=silent "

[skip-grub2]
target = @zipldir@
ramdisk = @zipldir@/initrd,0x2000000
image = @zipldir@/image
parameters = "root=@GRUB_DEVICE@ @GRUB_CONMODE@ @GRUB_CMDLINE_LINUX@ @GRUB_CMDLINE_LINUX_DEFAULT@ "

[test-grub2]
target = @zipldir@
ramdisk = @zipldir@/initrd,0x2000000
image = @zipldir@/image
parameters = "root=@GRUB_DEVICE@ @GRUB_CONMODE@ @GRUB_CMDLINE_LINUX@ @GRUB_CMDLINE_LINUX_DEFAULT@ "

:menu
target = @zipldir@
timeout = 16
default = 1
prompt = 1
1 = grub2
2 = skip-grub2
3 = test menu grub2

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

Generating grub configuration file ...
Found linux image: /boot/image-3.12.39-47-default
Found initrd image: /boot/initrd-3.12.39-47-default
Found linux image: /boot/image-3.12.28-4-default
Found initrd image: /boot/initrd-3.12.28-4-default
done

reboot

Storage cleared - system reset.
zIPL v1.24.1-38.17 interactive boot menu

0. default (grub2)

1. grub2
2. skip-grub2

Note: VM users please use '#cp vi vmsg <input> <kernel-parameters>'

Please choose (default will boot in 16 seconds):
Booting default (grub2)

Configuring A Dual Boot Arch And Fedora Installation

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.

Something's Wrong With GRUB

Ubuntu 12.04

I installed updates, which included a new kernel. I went to remove one of the older kernels and got:

Code:
jnojr@DEV:~$ sudo apt-get purge linux-image-3.13.0-46-generic
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-headers-3.13.0-46-generic gir1.2-ubuntuoneui-3.0 wireless-regdb iw
  linux-headers-3.13.0-46 crda linux-headers-3.5.0-23-generic lesstif2
  linux-headers-3.5.0-23 libubuntuoneui-3.0-1 thunderbird-globalmenu
Use 'apt-get autoremove' to remove them.
The following packages will be REMOVED:
  linux-image-3.13.0-46-generic*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 197 MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 340656 files and directories currently installed.)
Removing linux-image-3.13.0-46-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-46-generic /boot/vmlinuz-3.13.0-46-generic
update-initramfs: Deleting /boot/initrd.img-3.13.0-46-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-46-generic /boot/vmlinuz-3.13.0-46-generic
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-3.13.0-51-generic
Found initrd image: /boot/initrd.img-3.13.0-51-generic
Found linux image: /boot/vmlinuz-3.13.0-49-generic
Found initrd image: /boot/initrd.img-3.13.0-49-generic
Found linux image: /boot/vmlinuz-3.13.0-48-generic
Found initrd image: /boot/initrd.img-3.13.0-48-generic
Found Windows Vista (loader) on /dev/sda1
Found CentOS release 6.6 (Final) on /dev/sdb1
Found linux image: /boot/vmlinuz-3.13.0-51-generic
Found initrd image: /boot/initrd.img-3.13.0-51-generic
Found linux image: /boot/vmlinuz-3.13.0-49-generic
Found initrd image: /boot/initrd.img-3.13.0-49-generic
Found linux image: /boot/vmlinuz-3.13.0-48-generic
Found initrd image: /boot/initrd.img-3.13.0-48-generic
Found Windows Vista (loader) on /dev/sda1
Found CentOS release 6.6 (Final) on /dev/sdb1
Found memtest86+ image: /boot/memtest86+.bin
error: syntax error.
error: Incorrect command.
error: syntax error.
error: Incorrect command.
error: syntax error.
error: line no: 146
Syntax errors are detected in generated GRUB config file.
Ensure that there are no errors in /etc/default/grub
and /etc/grub.d/* files or please file a bug report with
/boot/grub/grub.cfg.new file attached.
done
Purging configuration files for linux-image-3.13.0-46-generic ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-46-generic /boot/vmlinuz-3.13.0-46-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-46-generic /boot/vmlinuz-3.13.0-46-generic

I have no idea how I'd "ensure there are no errors" in the /etc/grub related files... I have no idea what's supposed to be there. Looking at the line it's complaining about in /boot/grub/grub.cfg.new doesn't tell me anything. How do i find out what it's unhappy about?

How To Fix Grub Rescue > Unknown Filesystem ??

Please Help,

I have a Windows 7 and Fedora 20 dual boot pc .
Today i deleted the fedora partition from windows disk management and then restarted my pc.
Now i am stuck in the 'grub rescue > ' screen ...... It is showing 'no such partition ' , after searching through the internet i tried these commands......

grub rescue > set boot=(hd0,msdos6)

grub rescue> set prefix=(hd0,msdos6)/*boot/grub

grub rescue> insmod normal (after this line ,i am getting the error , grub rescue > unknown filesystem)

grub rescue> normal

Don't know what to do ,but i want to get back to the windows os first ,also i don't have the windows or fedora live cd . My Windows recovery is stored in my pc hard drive....... plzz help so that i can resolve this issue

Centos 6.4 Does Not Boot - A Kernel Panic Issue For Initialization

Hello

I have installed a CentOS 6.4 on VmWare.

Now, after several days of using it, it suddenly does not boots. There is a problem with its initialization, here is the error:

Kernel Panic : Unalble to init. Try passing init= option to the kernel.
Pid 1 : Swapper not tainted.

I have used CentOS.iso to rescue it, but it still does not solve it.

My grub.conf contains:

PHP Code:
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda2
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title CentOS (2.6.32-358.el6.x86_64)
    root (hd0,0)
    kernel /vmlinuz-2.6.32-358.el6.x86_64 ro root=UUID=6082bcf5-00ba-4bf8-86ea-9821d774cb6f rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
 initrd /initramfs-2.6.32-358.el6.x86_64.img 



How should I solve it then? Thanks in advance

Dual-Booting: Grub Rescue Mode Woes - Help Please :)

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.

Update Grub Command Not Working

I have made a change to GRUB2 bootloader in etc/default/grub.
Now I need to run 'update grub' for the change to take effect.
However, the 'update grub' command on the terminal is giving this error message:
Code:
root@debian:/# update grub
bash: update: command not found

Can someone please explain why this command is no longer working?

I've had to make a change to grub because I tried to install a new distro which meant I had to alter grub.
The install wasn't successful so I deleted the grub file and then re-installed it.
The re-installed grub needs a change so I can get sound on my pc.
However, I can't add these changes because the 'update grub' command doesn't work.

I've checked the grub file with another debian distro and they are both the same.
So now I don't know if I need to check if a different grub file is the problem or anything else.
Can someone help?

GRUB2 Scripts To Use Labels For Friendly Names

I am using linux mint and the grub menu gets configured automatically using scripts in /etc/grub.d. The menuentry that gets created is something like Code:
"linux mint (on /dev/sda1)"

. I use external drives sometimes and also have linux on my harddrive which I also switch between computers. It gets confusing when it says /dev/sda2 when it means something else. It boots fine because that actual boot command uses uuid. How can I change the text of the (script generated) description to also use partition labels or uuid (or the first few chars) just so I know which install will actually boot. like this: Code:
"Linux Mint (OFFICESSD)"
"Linux Mint (HOMEHDD)"
"Ubuntu (SANDISK)"
"Ubuntu (IMATION)"

I realise (maybe its the best way) I can change the "GRUB_TITLE=Linux Mint 17 Cinnamon 64-bit" in /etc/linuxmint/info but would rather a smoother way.

How To Create A Bootchart In Debian Wheezy Compatible OS?

On my Antix13 (similar Debian Wheezy), I have installed bootchart2 and pybootchartgui.
I have created entries in /boot/grub/menu.lst (see below),
but there are no /var/log/bootchart.tgz as per https://www.debian-administration.or...with_bootchart or http://forums.debian.net/viewtopic.php?f=16&t=38869
What should I do? I made perhaps something wrong.



Code:
timeout 5
color cyan/blue white/blue
foreground ffffff
background 0639a1

gfxmenu /boot/grub/message

title  antiX at sda2, kernel 3.7.10-antix.7-486-smp
root   (hd0,1)
kernel /boot/vmlinuz-3.7.10-antix.7-486-smp root=/dev/sda2 quiet nomodeset radeon.modeset=0
initrd /boot/initrd.img-3.7.10-antix.7-486-smp

# added
title  antiX at sda2, kernel 3.7.10-antix.7-486-smp bootchart
root   (hd0,1)
kernel /boot/vmlinuz-3.7.10-antix.7-486-smp root=/dev/sda2 ro init=/sbin/bootchartd radeon.modeset=0
#

boot
...

GRUB2 Not Seeing Old Distro When New Distro Is Installed

I have an old debian distro installed on hard disk. The distro is on sda1 partition. I also have Win7 on a seperate hard disk which is on sdb1.
When I boot up, GRUB bootloader opens up and gives me the option to select either OS.

So I recently installed a new debian distro and put into my sda2 partition.
But now when I boot up, GRUB only sees the new distro in sda2 and I can't access the distro in sda1 or Win7 in sdb1.

On one thread someone said mounting the partitions and then using 'update-grub' will resolve the problem.
I tried it and re-booted, but GRUB still only offers the newly installed distro in sda2.

Can someone help please?