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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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Linux server not booting after rebuilding software RAID

I have a dedicated server at 1and1 with a software RAID. I believe it's running CentOS. The hardware team at 1and1 replaced the secondary hard drive (sdb) and then I followed these instructions to rebuild the…
Nick
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Error 5 partition table invalid or corrupt

I'm trying to add a second SSD to a Centos 6 system. But I get the Error 5 partition table invalid or corrupt at boot. The system already has a single SSD (sdb) and a pair of HDDs (sd{a,c}) in a RAID 1 array from where it boots. It is as if the new…
Clodoaldo
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Grub2 reports physical volume pv0 not found when probing/installing

I upgraded a Ubuntu Maverick to Precise server but I get the following error while updating grub: error: physical volume pv0 not found. Now, for my system I have /dev/sda through /dev/sde /dev/sda1 is a Linux partition for /boot and /dev/sda5 is…
rreg
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how to get a linux image and restore it on another computer

I am trying to use dd command to accomplish complete restore of a linux image on a new computer. I have two partitions sda1(main) and sda2(extended), I took a backup of mbr image using: dd if=/dev/sda of=/mnt/sdb1/mbr_image bs=512 count=1 and dbr…
erin c
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Grub 1.99 default?

I have been running into an issue. I have my grub set to run the only OS on power on, and the BIOS to automatically restart the machine if it dies. The issue is that if the machine dies (from say a power failure), when it is powered back on it…
Ben
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1 answer

Booting Nexenta root mirror results in GRUB error "Filesystem type unknown, partition type 0xbf"

I have a Nexenta system that's been running fine for the last few years. Recently one of the system disks failed --- the syspool was part of a ZFS mirror. If I configure the system's BIOS to boot from the working drive, the text GRUB ("GRUB"…
smokris
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Easy Bootloader for USB Thumb Drives

Are there any bootloaders designed for usb drives that make it easy to boot multiple distributions and utilities. I've installed sysrescuecd, supergrub, ultimate boot cd and other various linux distros on my usb drive. The lame thing is all their…
Richard
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mount: mounting /dev on /root/dev failed: No such file or directory after converting lxc to virtual machine

I've been trying to convert an lxc container to a virtual machine, but I've encountered a problem when trying to boot. I end up with the (initramfs) command line and I've got the following errors: mount: mounting /dev on /root/dev failed: No such…
Lethargos
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Kernel Panic on CentOS - Google Compute Engine Instance

I'm getting a kernel panic error in a CentOS instance of Google Compute Engine. I'm able to see the error and already figure out how to solve it, but I can't get into the GRUB menu trough the serial console. dracut: Mounted root filesystem…
João Felipe Coutinho de Sousa
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how to configure the grub.cfg file on redhat 7 in order to boot from specific kernel

In Red Hat EL versions 5 and 6 we can easily to update the /etc/grub.conf in case we want to change the kernel by default variable For example , grub.conf on redhat 5 default=0 timeout=5 #splashimage=(hd0,0)/grub/splash.xpm.gz #hiddenmenu …
dandan
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Change kernel of Centos OVH

I'm using a server of OVH with OS centos7. OVH has its own linux kernel: 3.14.32-xxxx-grs-ipv6-64 Now I try to configure another Centos7 kernel. I installed the other kernel(s). yum install kernel ls /boot shows…
DenCowboy
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How to keep specific old kernels around after a yum update

I know that in CentOS 6.x, you can put the following line in /etc/yum.conf which tells yum to keep the last N kernels (by default this is set to five): installonly_limit=5 However, there are cases when using experimental kernels (such as from…
tgharold
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EC2 AMI instance store backup grub utility required

Working on backup of whole ec2 volume and image to upload to s3. Using RHEL7 and it internally uses Grub2 as bootloader. EC2 AMI tools requires grub legacy loader and I'm struck up in this loader. When i run ec2-bundle-vol, Stacktrace is as…
Sva
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How can I determine if nohz=off (CentOS 6.4 64bit - Hyper-V)

I've edited /boot/grub/grub.conf and added nohz=off to the command line of the default kernel. I do not see any difference, kernel is compiled with 1000Hz, but when I test with the following…
Vincent De Smet
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xvd device support with Gentoo running in Xen HVM guest

I'm trying to install Gentoo into a Xen HVM guest. Everything went fine with the install up to the point where you do the grub-install. Apparently, grub does not know about block devices labeled "xvd" (see…
John P
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