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Questions tagged [grub]

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

361 questions
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CentOS 6 Xen guest fails to boot after 'yum update'. Kernel?

I Seem to be having an issue with a Xen guest not booting after a yum update. DomU Configuration: #kernel = '/boot/solus-vmlinuz' #ramdisk = '/boot/solus-initrd.img' bootloader = '/usr/bin/pygrub' extra = '' memory = 128 hostname =…
Elijah Paul
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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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1 answer

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…
Jess
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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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Multiple boot options (in grub boot list) appeared after yum update

I am quite new to Linux administration so I am having trouble understanding yum update and grub boot list. I recently did a yum update on an old CentOS machine. Everything is good except there is multiple boot options appear in grub boot list and I…
Jeffrey
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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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What is Grub-install actually doing?

I have a client who accidentally converted the partition table of one of their Linux system from DOS to GPT. Unfortunately, the GRUB version is 2, and the system didn't have a BIOS boot partition for the additional boot loader code to reside…
Jepsenwan
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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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