CentOS 5 :: How Do I Boot Into Rescue Mode With Noapic Kernel Argument

Sep 5, 2009

I installed ubuntu on a second hard drive.Nowhere did the fracken ubuntu installer ask my permission to over-write my mbr but that's exactly what it did.I'm booted off the rescue CD trying to restore the mbr to how centos left it (I'll add ubuntu to grub manually) but I can't boot into rescue.linux rescue results in a kernel panic suggesting I need the noapic argument. Makes sense, I needed that to install and need that in grub.linux rescue noapic boots into the installer, not rescue.How do I boot into rescue mode with the noapic kernel argument?

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CentOS 5 :: Boot Into Rescue Mode Using Live CD

Oct 16, 2010

I am attempting to work with adding a new hard drive with a default logical volume setup. In order to complete the task, I am instructed to use a live CD to boot the system without mounting the drives using linux rescue. I am using CentOS-5.5-i386-LiveCD-Release2.iso

I have reviewed the centos documentation. When the live CD boots, it starts a count down to an automatic boot. I attempt to invoke the boot options as directed by hitting the tab and adding the words

linux rescue

At the end of the line and hit return to begin the booting process.

Unfortunately, the linux rescue boot option is ignored and the system mounts the hard drive. Additionally, I have checked the boot option several times by hitting the tab a second time and the option is not displayed.

In researching the issue, I inevitably get very similar instructions like:

Quote:The first centos CD or DVD has a rescue mode, just type on the boot screen: linux rescue

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General :: Install Centos From Rescue Mode?

Oct 10, 2010

i have a server which i have no physical access to, all i can do is boot in rescue mode from a live debian CD and i want to know of a way to install CentOS from iso image or maybe NFS? on that server using this debian live CD.

since it's live CD i can't mount the iso image and boot from it cos after reboot nothing will be preserved. so the case in breif is, i am booted form debian live cd and i want to install CentOS on the machine from that system using iso image

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CentOS 5 Hardware :: NIC Works In Rescue Mode But Not For Install

Apr 2, 2009

I am trying to build a server based on an ASUS P5BV-C, which has dual-Marvell 80856 Gig-E ethernet controllers.If I boot into rescue mode, using CentOS 5.3, x86_64, disc 1, I can start eth0, and it configures via dhcp. No problems.

If I boot the same disk with 'linux askmethod' and select http as the install method, it tries to start eth0, then times out trying to get dhcp. Checking tty3 (or 4, i forget) indicates the eth0 link is up, but no communication. Manual configuration doesn't work either.

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CentOS 5 :: Unable To Mount Devices In Rescue Mode?

Aug 1, 2010

Booting to CentOS 5.5 works and I am able to login with all my devices mounted. When I boot from the install DVD and type "linux rescue" I eventually get the message, after attempting to have one of the screens mount my partitions in read/write mode:

"An error occurred trying to mount some or all of your system. Some of it may be mounted under /mnt/sysimage." But nothing appears mounted under /mnt/sysimage. Should I try mounting my CentOS 5.5 partitions manually at this point ?

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Fedora Installation :: Boot Into Rescue Mode From GRUB?

Feb 5, 2009

I'm experimenting a bit with my fedora, so I need to enter rescue mode very often. Every time I want to enter rescue mode, I need to insert fedora DVD Is there a way to install rescue mode on my hard drive so I could boot into rescue mode from GRUB?

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General :: Boot Into Rescue Mode Without Installation Media?

Jul 18, 2011

I've got CentOS 6 installed and am wondering if it's necessary to have installation media in order to run 'linux rescue'. (I have to do some LVM resizing and would rather do it from rescue mode than in a running system.)

What I've read about booting into linux rescue is that it seems to be necessary to have installation media and boot into that. But I'm wondering if it's possible to do it some other way, like from the grub menu? But it doesn't seem to be possible to enter 'linux rescue' from the grub command line (which I got to by typing 'c' in grub menu screen) - typing 'linux rescue' at grub command line says 'command not found'.

Maybe there's another way to do this? Or some fancy way to have loaded a rescue image or something onto my disk so I don't need installation media. There's 2 reasons why I'd like to enter linux rescue without installation media, both because my computer is very old. 1) My computer can't boot from USB, and 2) My CD/DVD tray is very unstable and keeps popping out intermittently, so I'd need to hold the tray in place during the whole LVM process and it's a real pain, and I wouldn't want to risk data corruption if the process is interrupted by my CD/DVD tray popping out.

I'm hoping there's some way - it'd also be nice to know how to do this if some urgent situation arose where I needed to enter linux rescue mode but didn't have installation media handy and it'd take to long to retrieve or create new installation media.

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Fedora Installation :: Use LiveCD To Boot Into Rescue Mode And Run Fsck?

Nov 22, 2010

Is it still possible to use LiveCD to boot into rescue mode and run fsck?

I just want to run fsck on my hard disk and make sure all is well.

Does fsck provide and logs or records of what it found?

Is it possible to run fsck without LiveCD?

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Server :: Boot Ubuntu-10.04 In Rescue Mode To Edit Ftab?

Aug 28, 2010

I have an issue with the fstab on Ubuntu 10.4 - I need to mount the system with a rescur cd and edit the fstab I have the CD for 10.4 but am afraid the process on mounting the system will overwrite the system. With all the information about Ubuntu I can not find information about this process

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General :: What Are Implications Of Using 'noapic' Kernel Parameter?

Aug 4, 2010

I recently enabled noapic on my laptop because it was experiencing strange input freezes on several distros that I tried.Ok, so it does not use the ioapics. My question is, what does this mean for the system? If it used apics before, what happens now? I am a freshly graduated computer science major, and I have worked with basics pics on projects before, but I am curious how this effects the running system.

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SUSE / Novell :: Install The Kernel In Suse11 Rescue Mode From The Suse11 Dvd?

Oct 20, 2010

I just deleted the suse kernel-default by yast2 accidentally and rebooted the suse11 box,how will I install the kernel in suse11 rescue mode from the suse11 dvd ?

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General :: Emergency Mode Can Mount HDD With FS Error / Not In Rescue Or Single User-mode

Dec 1, 2010

My linux workstation recently crashed. After rebooting, Linux (Red Hat 5.3) will not boot properly and automatically went into emergency mode or recovery mode i think. I can still see my /home/user/ and all the files inside.I boot from CD to rescue mode and tried mounting read-only the /dev/sd5 which contains the files in the crashed hard disk to try to copy out my files but mounting was unsuccessful (invalid argument). I checked the filesystem type using fsck -N /dev/sda5 and shows it to ext2. i tried to mount another known working hdd and was successful.

My question is why in emergency mode, the crashed hdd is able to be mounted automatically as read-only but cannot be done in rescue mode thru a bootable CD?Is there any special mount options used in emergency mode?I also cannot copy out in emergency mode booting from the crashed hard disk as everything is read only.

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CentOS 5 :: Error 'noapic' When Start Centos?

Apr 8, 2009

i restore Centos from backup file,after i have finished,i start centos, it can't start and repost error: IO-APIC + timer doesn't work! Boot with apic=debug and send a report. Then try booting with the 'noapic' option

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CentOS 5 :: Manually Mounting Partitions In "rescue Mode"?

Aug 2, 2010

give me the sequence for manually mounting devices in "rescue mode" ? When I try "linux rescue" from the install disk, it eventually fails to mount my partitions with a generalized failure message, which tells me nothing. I then try mounting them myself on /mnt/sysimage. I have separate root, boot, and home partititions. Is the sequence:

Mount root partition at /mnt/sysimage
chroot /mnt/sysimage
Mount boot partition at /boot
Mount home partition at /home

What about tmpfs, devpts, sysfs ? Do they need to be manually mounted also ? The 'mount' command does not show them as mounted after I do my chroot.

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Ubuntu Installation :: How To Boot 8.10 With Noapic

Jan 4, 2010

I'm required to use this to use the live cd, and just to install it. But I can't find the option to use it when booting.

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Red Hat :: Unable To Boot RHEL 5.2 And Unable To Mount Root File System In Rescue Mode

Jan 28, 2010

Environment: A 32-bit kernel RHEL5.3 system running on a virtual machine. The root(/) filesystem is on an LV.

Issue: Unable to resize the FS after extending the root LV since it is mounted. After extending the LV, online resizing of the FS was not supported and the root filesystem could not be unmounted while it was in use. On rebooting, I got a kernel panic error. In runlevel 1, I couldn't run chroot, couldn't find the /etc/fstab, root FS could not be mounted, fsck did not run (tried block 31 for second copy of superblock using dd count=1 bs=4k skip=31 seek=1 if=/dev/sda2 of=/dev/sda2), couldn't find any rpm on installation media to install unix-utils rpm. On running commands in runlevel 1,

I got the following output.

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Ubuntu Installation :: Grub Rescue Mode - Error: Cannot Find A Device For /boot/grub (is /dev Mounted?)

Dec 16, 2010

I updated yesterday and now when I start my laptop it goes in to grub rescue mode. I have booted from a 'live cd' and thought I could repair grub from there. In gparted however the partition with ubuntu (sda1) is seen as unknown file system, in terminal when I list the partition table it shows up as FAT16 type. When I try a grub-install it gives this error message:

[Code]....

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Ubuntu Servers :: 8.04 - Kernel Panic On Boot Even In Recovery Mode

Feb 18, 2010

I have a 8.04 x64 server installation that is receiving a kernel panic on boot no matter which kernel I choose even recovery mode.

[ 27.738620] raid1: raid set md0 active with 1 out of 2 mirrors
Done.
Begin: Running /scripts/local-premount ...
kinit: name_to_dev_t(/dev/disk/by-uuid/c224854e-37bd-491a-b895-48e8bf07fe00) = md1(9,1)
kinit: trying to resume from /dev/disk/bby-uuid/c224854e-37bd-491a-b895-48e8bf07fe00
[ 31.665733] Attempting maual resume
kinit: No resume image, doing normal boot...
Done.
[ 31.717461] kjournald starting. Commit interval 5 seconds
[ 31.717471] EXT3-fs: mounted filesystem with ordered data mode.
Begin: Running /scripts/local-bottom ...
Done.
Done.
Begin: Running /scripts/init-bottom ...
Done.
init: Error parsing configuration: No such file or directory
[ 32.064009] Kernel panic - not syncing: Attempted to kill init!

I have built a new server, now I am trying to restore my db from mysql. I have a backup that is out dated, I was hoping there was a way to copy the files over and have them work on the new installation. I can boot the server with the installation cd using recovery mode, I can get to the hdd and mount a smbfs share from the new server. I have tried to cp the files retaining the permissions and get a permission denied error, but if I copy without retaining the perms they copy just fine and do not work.

I have setup the new server with very close to the same version of all software. I have built a new instance of my service using all of the same users and passwords. I then backed up the new db and moved it over and attempted to copy the old db over. I did not copy it straight to the mysql folder as I did not share that folder out. Any other ideas to get this db recovered? What about getting my old server to run again just long enough to get a mysql dump?

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Red Hat :: Enter Into Rescue Mode Without CD/DVD

Jul 28, 2010

I've RHEL and windows installed in a single system. First I've installed RHEL then windows xp. Now to install grub how do I enter into rescue mode without any CD/DVD? Do we have any option?

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CentOS 5 :: Re-compiled Kernel,scsi_mod Into Kernel - Boot Failed

Nov 6, 2009

I compiled my kernel, compiled scsi support into kernel, used the new kernel and initrd, the boot failed.Then ,i unzip my initrd, found that sd_mod.ko can't be insert, i added it manual, and reboot OK.so, why! in the kernel configure , the sd_mod.ko is set to <M> , but why it can't be found in initrd?

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Debian :: Unable To Get Into Rescue Mode

Jun 1, 2015

I have a brand new Z97-PRO (Wifi/USB3.1 version) that I got to replace a Gryphon Z87, and it was working great for the first day. I had my Debian and Windows drives both working, and I was working on getting GRUB reinstalled on the Debian drive in no time. At some point I needed to restore my Windows MBR for the millionth time, but this time was different. The Windows logo popped up and froze there. I know this is a thing that sometimes happens, but every other time since I replaced my Gryphon this process only lasted seconds. I let it sit for hours and it didn't move.

I then tried my Debian live USB, which loaded into the main menu, but upon selecting rescue mode it black screened and hung. This was an issue I experienced when I first got the board, but it seemed to work itself out after a few reboots and remained flawless until it just came back. At this point, I'm unable to get in to any of my OSes and I can't seem to successfully boot any external media in order to fix it. My BIOS is totally stock save for secure boot, which is set to Other OS, and memory in XMP mode. I also tried using an Ubuntu Live USB, but ended up hanging with the exact same Q-Codes as in Debian. I am running the system on 1 stick of RAM while testing.

Q-Codes at hang:
UEFI USB - AF (Exit Boot Services Event)
Regular USB - F6 (Reserved for future AMI progress codes)

Specs:
- 2 boot SSDs (OCZ for Windows, Kingston for Debian), 2 storage drives, and a DVD drive.
- The boot SSDs occupy SATA ports 1 & 2, the DVD drive takes up 3, and the storage drives take up 5 & 6
- i7 4770K, 32GB (8GBx4) Corsair Dominator RAM, GTX780Ti
- 750W Silverstone PSU

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Debian :: Can't Connect At The Rescue Mode

Sep 2, 2010

i had a fully working system (debian /stable) but now i have a weird initrd error and i cant boot.

my boyfriend used to repair all the problems remotely (from the other side of the earth ) i have but now he cant connect at the rescue mode.

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Ubuntu :: Grub Rescue Mode Won't Go Away

Dec 7, 2010

I have an Ubuntu 10.4 installation (dualboot with windows XP) with grub2.After I resized some of my partitions using a gparted live cd, the system goes directly to grub rescue mode every time I boot.Then I follow the instructions which are given in grub2 wiki site to boot.The grub boot directory is now located in sda6 (hd0,6) in my system as found out using 'ls' command.

But in the grub rescue mode when I enter the 'set' command (one of the very few commands available), to display current prefix and root, it gives "(hd0,7)/boot/grub" as 'prefix' and "hd0,7" as 'root'.After entering the following commands, I'm able to boot.There are other users at my home not familiar with ubuntu. windows is their OS of choice. So I don't want to remove windows installation .One solution that I can think of is creating a grub rescue CD using grub-mkrescue, then using windows cd to fix mbr (which will overwrite grub? or the pointer to grub?) and then using the grub rescue cd to boot into Ubuntu but I'm not sure.

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Red Hat / Fedora :: Mount Dvd In Rescue Mode

Sep 23, 2010

Actually Some one has deleted my vmlinuz-2.6.18-164.el5 and its backup vmlinuz5 from /boot dir i want to restore those files. i tried by "linux rescue" mode but unable to mount my dvd from RHEL5 dvd drive there is no file exist as /dev/cdrom .

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Server :: How To Disable Rescue Mode

Jan 31, 2011

From system security point to view I want to prohibit 'linux rescue' mode in my installed RHEL system. Because as per my knowlege through linux rescue mode anyone who have physical access to system can mount root filesystem(/) and retrieve all data without knowing root password. Please guide should i encrypt / on any alternative .

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Ubuntu Servers :: 10.04 - Trying To Recover In Rescue Mode

Dec 5, 2010

Ubuntu 10.04 on remote server failed after updating following modules:
An update to grub-common from 1.98-1ubuntu8 to 1.98-1ubuntu9 is available.
An update to grub-pc from 1.98-1ubuntu8 to 1.98-1ubuntu9 is available.

First updated a OK and second gave an error "wrong name" or something like that So the update stop the server and I did "Cold Reboot" which seems to work but I can't log in via "root" SSH only by "rescue mode" SSH however I am totally lost there.

I guess I need to finish the "grub-pc" or "grub-common" from prior update process. I can use rescue mode to effectively boot my server to live cd. I can ssh in to the live cd os and my original os is mounted for me to chroot in / backup / repair.

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Ubuntu Installation :: Grub Not Go Further Than Rescue Mode

Jun 30, 2011

I installed Fedora on my pc over Ubuntu and now Grub wont go any further than rescue mode. (Apparently grubs boot folder was on the Ubuntu partition. Now I see why a dedicated boot partition is handy.) I used VMware to install Fedora as im currently out of CDs. VMware is setup to use the Physical HDD for the primary HDD in the VM. (I made sure VMware disabled access to the windows partitions so the guest couldn't access them.)

I am in Windows 7 at the moment and am avoiding rebooting as that will basically lock me out of the only computer I have access to. I tried running the Ubuntu LiveCD to restore grub but dont know how to mount Fedoras LVM partitions. What can I do to repair grub or at least install an MBR that is capable of booting windows? I can boot floppies and cds using VMware but am not sure what to use to fix this.

Fedora LiveCD wont mount any of the partitions to install Grub
Ubuntu LiveCD may work if I can mount the LVM partitions.

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General :: Fixing Grub From Rescue Mode

Feb 23, 2011

I got my wife to try Linux, so we set her machine up to dual boot with Windows. After a few weeks, she decided not to use Linux, so we deleted the Linux partitions using Gparted on a USB drive and resized the NTFS partition, under the apparently mistaken impression that Grub would detect that there was now no other operating system. When we rebooted, we got error: no such partition, followed by a grub rescue prompt. I've never worked with Grub directly before, so I have no idea what to do at this point.

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General :: Can't Find Rescue Mode In Fedora

Nov 28, 2010

1 ) I have accidently installed RHEL5.2 in a lap which was already having Fedora14. Now the fedora grub is missing and i am unable to boot into fedora. also there is no Rescue option in fedora 14 live CD, it only have Boot, Basic video, Memory test but no rescue mode. so pls tell me how to get into Rescue mode and solve this problem

2 ) How to find in which partition it is installed eg do i have type (hd0,0) or (hd0,xx), i have on hard disk so the H.D.D number will be hd0 but what about the partition . how to find it.

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Server :: RHEL - No Pvcreate At Rescue Mode

Jun 29, 2010

Im trying to restore RHEL 5.3 which was previously installed on LVM. I have completly new disks.

1. I have started RHEL install DVD with option: linux rescue
2. set up network
3. connected to NFS server where the backup is stored
4. restored partition image: dd if=/mnt/source/layout.bin of=/dev/sda bs=1024 count=1 (this will preapare partitions like it was before backup. After that it is necessary to run fdisk /dev/sda and choose oprion "w" - write)

Now, I want to create Logical Volumes, but I have no "pvcreate" command in RHEL rescue mode.

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