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Hi List, Strange problem. I am running off of CentOS x86_64 6.4 usb key that is sdb I have ssd disk that has a centos image on it. I have mounted the partitions /dev/sda3 as /mnt/sysimage and /dev/sda1 as /mnt/sysimage/boot I am trying to chroot to /mnt/sysimage dir but get the following error. [root at localhost root]# /usr/sbin/chroot /mnt/sysimage /bin/bash /usr/sbin/chroot: failed to run

On Fri, May 5, 2017 at 2:38 PM, Nikolaos Milas <nmilas at noa.gr> wrote: > On 5/5/2017 3:15 ??, Gianluca Cecchi wrote: > > ... >> grub2-install /dev/vda >> ... >> Was this one of the command you already tried? >> > > Yes, I have tried that multiple times, both from Troubleshooting Mode > (booting using CentOS 7 Installation CD) and from within the

Il 05 Mag 2017 19:30, "Nikolaos Milas" <nmilas at noa.gr> ha scritto: On 5/5/2017 3:45 ??, Gianluca Cecchi wrote: BTW: see also this paragraph in the provided RH EL link: > 24.7.3. Resetting and Reinstalling GRUB 2 > > But i think is not your problem.... > Yes, I have done that, without change in behavior. Also, after changing partitions flag does your fdisk

On 10/30/2016 12:26 PM, Paul R. Ganci wrote: > <snip>I am thinking of putting the CentOS iso out and then booting the > VM into it just to poke around the file system. Otherwise my other > option is to just clone a twin VM on another server and then just > change the networking IPs/hostname. Anybody have any other ideas as to > how to debug this problem? So I booted off

I boot from the installation DVD, with an already existing CentOS 5.5 system on my hard disks. I have separate boot, root, and home partitions. I have moved the boot partition and now I need to re-initialize grub from rescue mode. Attempting to use 'rescue mode" to automatically mount my system under /mnt/sysimage eventally fails with an error message, which essentially says

If I boot C5 from DVD in rescue mode, chroot to /mnt/sysimage, and try to do a grub-install /dev/sda it will fail because the /dev folder is empty (in the chroot environment). Until now I've then created the missing nodes manually, but is there a smarter way of doing this? Some devfs that needs to be mounted on top of /dev? Mogens -- Mogens Kjaer, Carlsberg A/S, Computer Department Gamle

On 5/5/2017 3:45 ??, Gianluca Cecchi wrote: > BTW: see also this paragraph in the provided RH EL link: > 24.7.3. Resetting and Reinstalling GRUB 2 > > But i think is not your problem.... Yes, I have done that, without change in behavior. > Also, after changing partitions flag does your fdisk command reflect the > change? Yes. > Is the error during boot the same as the one

Hi. I have cloned a RHEL 5.6 physical server over to a ESXi 5.0 Virtual Machine. Using a live CD on the new Virtual Machine I created 3 partition /boot (/dev/sda1), / (/dev/sda2) and swap (/dev/sda3), I then mounted the / (sda2) partition and created the /boot directory and mount the boot partition partition /dev/sda1 into /boot. I then used rsync to copy the source machine over to the Virtual

Very low priority. No user data at risk. 8GB virtual disk being installed to, and the installer is puking. I''m trying to figure out why. I first get an rsync error 12, followed by the installer crashing. What''s interesting is this, deleting irrelevant source file systems, just showing the mounts for the installed system: [root@localhost tmp]# df Filesystem

On this URL: http://www.centos.org/docs/5/html/Installation_Guide-en-US/s1-rescuemode-boot.html there is a description of "linux rescue" which includes the following: From the prompt, you can run many useful commands, such as: ssh, scp, and ping if the network is started dump and restore for users with tape drives parted and fdisk for managing partitions

I have a kickstart file that I am using to install multiple machines. If I install with no %post script, everything runs great. When I add the following %post section, if fails. I have been working on this for a few days now without luck, Any help would be appreciated. Here is the error, the script follows. Traceback (most recent call first): File

On Fri, May 5, 2017 at 2:05 PM, Bernard Lheureux < bernard.lheureux at bbsoft4.org> wrote: > On 05/05/2017 12:57, Gianluca Cecchi wrote: > > grub-install /dev/vda2 didn't work ? > > As this is a CentOS 7.x system, I would say this, if you want to install it on MBR: grub2-install /dev/vda as detailed here:

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

A bit hard to say. Try chrooting into environment and rebuilding initrd? -- Eero 2016-10-30 22:53 GMT+02:00 Paul R. Ganci <ganci at nurdog.com>: > On 10/30/2016 12:26 PM, Paul R. Ganci wrote: > >> <snip>I am thinking of putting the CentOS iso out and then booting the VM >> into it just to poke around the file system. Otherwise my other option is >> to just

so, Just chroot to mountpoint: http://www.cyberciti.biz/faq/unix-linux-chroot-command-examples-usage-syntax/ chroot /mounted/path /bin/bash and then .. mkinitrd (see man page for documentation) 2016-10-30 22:57 GMT+02:00 Eero Volotinen <eero.volotinen at iki.fi>: > A bit hard to say. Try chrooting into environment and rebuilding initrd? > > -- > Eero > > 2016-10-30

Hi all, I had the same problem with my UEFI bios machine and I fixed it so for Centos 7: 1) Boot from an rescue linux usb 2) When the rescue system is running: ??? 2.1) #chroot /mnt/sysimage 3) Config network: ??? 3.1) # ip addr add X.X.X.X/X dev X ??? 3.2) # ip route add default via X.X.X.X??? <--- default router 4) And finally: ??? #yum downgrade shim\* grub2\* mokutil ???

On 5/5/2017 8:34 ??, Gianluca Cecchi wrote: > Your /mnt/sysimage/boot is under tmpfs not real disk... Sorry, I am not an expert, but it does seem to NOT be under tmpfs: Filesystem Size Used Avail Use% Mounted on ... /dev/vdal 497M 192M 306M 39% /mnt/sysimage/boot ... Why do you say that the boot partition is under tmpfs? Nick

On 5/5/2017 9:10 ??, Marcelo Roccasalva wrote: > xfs_admin -U restore /dev/vdal Bingo! I had to unmount the boot partition (being in Troubleshooting mode), run the above command, which provided a new UUID and at last the partition was recognized as xfs. (I forgot to copy the output to paste here.) I then mounted the boot partition again, chrooted, grub2-install'ed successfully,

Hi Updated the firmware on a PERC RAID card as it was out of date and causing a monitoring error - Everything went fine but on the reboot the box now tells me it cant find a valid boot device - I am thinking maybe somehow the boot block on the logical disk is shot. Can anyone advise me on how to rebuild the bootloader on lilo using a rescue CD? thanks

Hi, I've been using an CentOS4.4 version. All was well till 2 days back. Suddenly when the PC was booted-up, it wouldn't bootup. It gets stuck displaying the following message. exec of init (/sbin/init) failed !!!: 80 umount /initrd/dev failed: 2 Kernel panic - not syncing: Attempted to kill init! I entered the rescue mode and attempted chroot /mnt/sysimage It spitted an error