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Questions tagged [grub]

Console application permitting the user to choose between several installed operating systems.

346 questions
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boot manager for two partitions on different HDD

Is there a way to install a boot manager to the MBR, like GRUB, so that I can choose from my IDE drive running Windows 7 Pro and my SATA drive running Windows Server 2008 ? The way it is now is that I have to go to the BIOS to change the drives in…
JFB
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Finding the LVM root volume while in the Grub 0.95 CLI without access to the grub.conf file

If I have my root device is a LVM logical volume, how can I figure out the path via the Grub CLI without access to the original grub.conf file? This is for use in the kernel command's root and rd_LVM_LV parameters. E.g.: kernel…
Belmin Fernandez
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Ubuntu 10.10 unattended grub2 downgrade

I've got to install a few machines with grub legacy on them due to issues with symantec ghost (ghost is a requirement that can't be dropped). i've got a script that prepares machines, but there's a slight problem: apt-get purge grub-pc comes up with…
Baczek
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grub rescue prompt

Had win7 and ubuntu installed on laptop and inadvertently selected the recovery option in boot menu - exited and now all I get is error: no such partition grub rescue> set returns: prefix=(hd,0,msdos6)/boot/grub root=hd0,msdos6 ls returns: (hd0)…
ToonMariner
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Rescuing grub on RAID+LVM

I have a dual SATA drive setup for a file storage/general purpose box, which is arranged thus: /dev/sda1 + /dev/sda1 = /dev/md0 RAID1 --> /boot /dev/sda2 + /dev/sdb2 = /dev/md1 RAID1 --> LVM with VGs and LVs for /, /usr, /var, etc. partitions. I…
Gnudiff
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Ubuntu Server 10.04 64 bit Clonezilla image shows grub menu at startup

I've successfully cloned an entire disk of one server using Clonezilla live. The only problem is after cloning, the grub menu displays on boot. Grub menu settings are carried over from the cloned machine, so according to my understanding, this…
grant
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How can I force my terminal to run high resolution in non-X11 environment in Linux?

I just installed Scientific Linux and I've had a high resolution terminal, then I upgraded my video driver to enable some features of my video card but with that my terminal went to regular resolution 80x25, how can I switch (force) it to use high…
alexus
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I deleted files from my Linux box's /boot directory and now it won't boot

I did that to save space. Now I see GRUB loading, please wait ... ERROR 15 on boot. /boot still has files corresponding to 2.6.32-27 version of Linux. But I deleted all others that did not have that string in /boot What can I do ?
Ankur Agarwal
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How to reboot Ubuntu to log into boot GRUB screen?

When I currently reboot, I just get the option of the user I want to log in as. It has me and "other" which asks me for the user name. The only user name I can think of is root, but I don't know its password. Am I doing something wrong? How do I…
Genadinik
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Grub Configuration for OpenVZ?

I am trying to get OpenVZ working on my server but I am having problems. I am getting the error 'Running kernel is not OpenVZ kernel.' every time I install OpenVZ. My server is running CentOS 64bit. My existing grub file is…
Joel Kennedy
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How to understand the configuration of grub.conf?

title CentOS (2.6.32.9) root (hd0,0) kernel /vmlinuz-2.6.32.9 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.32.9.img I'm now upgrading the kernel,but failed several times... seems the system can't find…
grub
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Finding out from which initrd image current RedHat session has booted

How can I find out from which initrd image in /boot/ a RedHat system has been booted from, assuming that there are multiple entries in /etc/grub.conf with the same kernel but different initrd-*.img files? (dmesg doesn't show it and there is no link…
js.
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skip fsck on boot on ubuntu 10.04 server

We are sitting here in front of an ubuntu 10.04 server who insists doing a lengthy checkdisk during reboot. We see one option to edit the kernel boot options line in grub to skip the check. What would be the parmater, something like --skip-fsck…
GrubFreak
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I changed boot/grub/menu.ls

I commented out a wrong line in /boot/grub/menu.ls and now it tells me kernel panic - not syncing : VFS: unable to mount root fs on unknown - block (0,0) It stops there and does nothing. How can I change the file back and uncomment it. I am unsing…
user50946
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How do I enter interactive command mode in GRUB bootloader?

I've accidentally locked myself out of the sudoers file on my desktop machine when trying to get wireshark working. So I figured that I need to enter single user mode. I've read how to do it in grub, but I can't seem to get the grub menu to appear…
hookenz
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