I'm trying to boot into emergency mode but i'm having no joy. I can boot to single user mode (by adding s or single at the end of the kernel line in grub) and I can also boot to init=/bin/sh mode by using the same method, but emergency is not working. I'm using RHEL6 x64
View 8 RepliesI need boot in emergency mode (not single user mode), from docs:
[URL]
in red hat enterprise 5 it's ok, not in red hat 6.
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.
I have a Debian 8 system here running off an SSD with a five-drive RAID5 array (md0). I can reboot this machine just fine until I do an apt-get update and upgrade, at which point it fails to boot. I get the following:
A start job is running for /media/Storage (the mount point for md0)
Afterwards it dumps me into emergency mode. journalctl shows me these worrisome lines:
Timed out waiting for device dev-md0.device.
Subject: Unit dev-md0.device has failed.
Now, I have a backup image of this installation from right before running apt-get update and upgrade. If I restore that image, Debian boots fine and mounts the array successfully every time. Until I update and upgrade again. I've seen it happen three times now.
I used a clonezilla live cd to clone a working updated install to another SSD of the exact make and model. Something went terribly wrong, and the new system booted to emergency mode. I then went back to my working laptop I cloned from and it did the exact same thing when booted, into emergency mode. After a couple of days trying to figure out how to rebuild the FSTAB on the once working machine, I finally figured out how to mount the root partition and copied all my important stuff off. WHEW!
Before I was able to mount the root partition, I had a heck of a time trying to mount it, getting errors about unable to read superblock, etc. I used testdisk that I installed on a debian live cd (on a flash drive) and it did something, not sure, but after that, and rebooting, I no longer had sda1,sda2, and sda5. I only had 1 and 5. sda2 was the root partition (extended, ext2) and I thought all was lost. But after running fdisk -l, I noticed two other devices... dm-0 and dm-1. I noticed that dm-0 was my root partition and read that it has something to do with LVM. I mounted it, and grabbed all my important stuff.
Now I am stuck at rebuilding my fstab so my boot, root, and swap partitions are properly mounted. Again, I do not have anything to copy and paste yet. I guess I got lazy since a lot of my work on this system is via Putty and SSH from a windows machine. It certainly looks like the partitions are there and ok, just not sure where to go from here.
I read that I need to get the UUID's from the partitions, then rebuild the fstab using those. I figured out pretty quickly that using /dev/sda1, 2, and 5 did not work. And the UUID's are pretty long. Without copy and paste, I am not sure how to use those without manually keying them in. I tried shelling into my laptop via putty while it is in emergency mode but failed.
I cloned my disk that have dual boot in it clone the disk remove the old one put the new one so far okay. But when i put with the new disk to linux it goes to the emergency mode:
run fstab and this is my fstab results:
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sda1 during installation
UUID=cd9637db-0479-4ef0-90fd-481a50e23060 / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=df29ffb9-91a8-48d7-91cd-5e671b55677d none swap sw 0 0
/dev/sr0 /media/cdrom0 udf,iso9660 user,noauto 0 0
UUID=696FF92C4C532245 /media/Windows ntfs defaults,x-gvfs-name=Windows,x-gvfs-icon=%2Fhome%2Fdarkangel%2FDownloads%2Fwindows_hdd_icon.png,x-gvfs-show 0 0
I made a diskless image against Fedora15, during the boot I found it displayed the following error message and went into emergency mode.
The error message:
Starting Relabel all filesystems, if necessary ^[[1;31maborted^[[0m because a dependency failed.^M
[ 107.607155] systemd[1]: Job fedora-autorelabel.service/start failed with result 'dependency'.^M
Starting Mark the need to relabel after reboot ^[[1;31maborted^[[0m because a dependency failed.^M
[code]...
First of all, my computer is running Debian Jessie. uname -a gives me this output: Code: Select allLinux felix-PC 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u3 (2015-08-04) x86_64 GNU/Linux
So today I updated my system with aptitude update and aptitude upgrade, and there was few paquages that were updated. Among them was one "linux-image" or "linux-headers". I believe that it is linked to this security update: [URL].... .
During the time aptitude upgrade was running, I was simply surfing on Iceweasel. However, it seems that my system suddenly restarted, without asking me the permission or without notifying me. It really looked like I pressed the restart key, but I actually didn't. My computer battery was full charged and plugged in. So, I do believe that it is my system that rebooted himself after the aptitude upgrade was completed (or even during the upgrade, I don't know).
So my computer restarts, and brings me to GRUB menu: I boot Debian and then I get the usual [ OK ] ***** lines telling that the system boots normally. But this time, I get some errors:
Code: Select all[FAILED] Failed to set up automount Arbitrary Executable file format file system Automount point
...
[FAILED] Failed to start load kernel module
...
[FAILED] Failed to mount /boot/efi
[DEPEND] Dependency failed for Local File Systems
I arrive then in Emergency mode with this message:
Code: Select all Welcome to emergency mode! After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, "systemctl default" to try again
to boot into default mode.
Give root password for maintenance
(or type Control-D to continue):
I tried systemctl default but it doesn't boot my system normally. I also tried Control-D but it just reprints the same message. And finally I typed journalctl -xb, which gives me a long log file (855 lines) that I do not understand.
I would give this log file, but it seems that my internet connexion is broken (because of the kernel, I mean), even with an Ethernet cable. So I can't connect with ssh to the computer I use at the moment, and I can't either send it to myself by mail. I tried to mount an usb key, but it seems that any key won't be mounted because of a kernel problem.
An obvious solution to my problem may be to come back to an older kernel version. However, only the lasted kernel version (x86_64 Linux 3.16.0-4-amd64) is installed. dpkg --list | grep linux-image gives me indeed:
Code: Select alliF linux-image-3.16.0-4-amd64 3.16.7-ckt11-1+deb8u3 amd64 Linux 3.16 for 64-bit PCs
ii linux-image-amd64 3.16+63 amd64 Linux for 64-bit PCs (meta-package)
I do not know how to come back to an older kernel, as far as I haven't any internet connection and as far as I seem to not be able to load an usb key.
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.
Installing upgrade from Open SuSe 10.3 to 11.3. I did it on a 32-bit laptop, aborted half way through and couldn't get back on because GRUB loader was corrupted. No problem as there are lots of 32-bit GRUB loaders available for download, install was successful 2nd time. I need to do the same for a desktop x64bit dual core Intel. Can't find a x64bit GRUB loader on internet - how do I extract from my current set-up an emergency GRUB-loader CD?
View 5 Replies View RelatedI installed ubuntu 10.04 by wubi. It works perfect until I installed and ran "startupmanager". I find that I can't enter ubuntu, even in recovery mode. The screen keeps showing "rstslog main process ended, respawning [fail]" and other text
View 4 Replies View RelatedI installed Fedora 11 on my system (see below) using the i686 DVD. The graphical install worked just fine, and after the system booted back up, the X server was working very well.
There is no boot text. On the other system with Fedora 11, I can see the boot text scroll by in the window and/or a progress bar at the bottom of the monitor during the boot sequence. On this system, the monitor says "No Input", and nothing appears until the login prompt for the X window. I am able to enter the BIOS configuration page and navigate through it without any issues. I can also edit the grub commands before Fedora loads without a problem.
If I boot in text mode, no login prompt appears. If I wait long enough, the monitor enters the power save mode since it is not receiving a signal. I am able to log in to the system with my user name and password, and then start the X server. Once the server starts, the monitor turns back ON and all is well.
From the X window, I use the CTL+ALT+F2 key to enter text mode. The monitor stops responding. If I press the ENTER key a couple of times, then press ALT+F7, I can briefly see the text window with a couple of login prompts before the X window starts responding again.
How can I get the text mode to work? Why is there no input to the monitor when booting?
System:
Intel D945GSEJT motherboard with Intel Atom N270 processor
2GB RAM
120GB SATA Hard Drive
Fedora 11 i686
how do I make grub boot to allow me to choose, like safe mode and normal mode and all that second, how do I do automated back ups (preferably using file copy) for something like every sunday at 11:00 am using the command line, i use to know but forgot.
View 1 Replies View RelatedI attempted to install Catalyst 10.11 for my ATI HD 2600XT and the system now only displays lines and a large block of pixels where the mouse would go. CTRL-ALT-F1 kills the system and does not provide a command prompt. This is a single installation, not dual-boot, but there is no Press Esc to access the Grub menu during startup so I cannot choose safe mode. I attempted to get into Recovery mode using the flash drive that I used to install the system and it tells me there is no Recovery kernel (I used the 64-bit Desktop installer, not alternative). Does anyone know an alternative to get into the Grub menu other than ESC during bootup? Alternatively, do I need to download the 64-bit Alternative ISO and create a new boot disk with it so I can access Recovery mode? Is there something else I'm not thinking of?
View 5 Replies View RelatedSo I was doing the update to 10.04 when a freak thunderstorm knocked out the power. I can no longer load onto ubuntu from the HDD. I have been told to either do an emergency back up using the 10.04 live disk. I am not sure what to do when it comes to that. I have also heard I can just repair the boot file on the HDD. I don't know how to do that either. I wouldn't mind I fresh install but I do not want to lose any of my data.
View 9 Replies View RelatedI'm working with Eclipse and it's starting to misbehave now and then which completely freezes my computer. Is there any emergency command to kill such a misbehaving process so I don't have to reboot my computer?
I already have a emergency xkill icon in my taskbar and a [Ctrl]+[F1] console with "> sudo killall eclipse" pretyped(!) but sometimes it's even to late for this. What I would need is a emergency command/console that gets a guaranteed amount of process time so I can kill these process.
I want a USB drive for emergency situations. It will have sensitive information, family photos, etc. stored on it. I want it to have one encrypted portion (TrueCrypt) for the sensitive materials. I want the files to be able to be viewed on a Windows machine first and foremost. If no Windows machine is available I would like to have a bootable version of Ubuntu on the USB drive so I can boot it and also view the files.
View 2 Replies View RelatedI just got a SD to IDE adapter and a 8GB SD card. I am looking to install Parted Magic onto the SD card and have the card permanently installed in the server so I can have an emergency recovery environment if need be... Unfortunately, Parted magic no longer comes with USB editions and the tutorials I found on the web all require windows to proceed with installing PM onto a USB stick or SD card. (What the .... !?!) I never played with syslinux before and I wonder if somebody out here could write a short & simple tutorial on how to install parted magic on a SD card. So far I am thinking of a 200MB bootable partition (sda1) + a 7.16GB (remainder) logical partition (sda5) where I would store some programs and other emergency files I might need. Then I would format the partitions and copy the content of the CD iso (?) to the sda1 and then install syslinux onto sda1 ?
View 2 Replies View RelatedI just installed natty. I use Deja dup to backup my photos to the server in my basement, but now I can't find them. I really cant understand why theyre gone, but they are, maybe because I'm unorganized. Anyways, my hard drive may not be totally overwritten. Can i rescue my old data, or at least parts of it? How?
View 2 Replies View RelatedI have a jpeg file on my Windows system that won't delete. However, when I try to boot into safe mode to delete it, I can not get into the menu to select "Safe Mode". F8 just boots me right into Ubuntu.I have Windows 7 and Ubuntu 10.10 on an Acer Aspire 5520.
View 3 Replies View RelatedBelow is a print out of my partition Table from Fdisk, in Cylinder mode, Sector mode, and then in expert mode?
Why in expert mode does it look like Partitions 2 and 3 share the same sector / hd / Cylinders? Is this OK?
Code:
I've set up a triple boot system (Ubuntu Karmic, Windows Vista and OSX86 -- a patched OS X which works on a PC) on a Dell 9200 (C2D 2.13 GHz, 4GB RAM, nVidia G210). I sue Grub2 as the bootloader and update-grub picks up OS X and it boots without any problem.
However, although when booting OS X using its own Darwin bootloader, I can apply the boot option "Graphics Mode"="1680x1050x32" to ensure that I get the screen resolution that I want, when OS X boots from Grub2, the only resolution available is 1024x768 which is disappointing. I have tried adding gfxmode=1650x1050x32 to the OS X section of /boot/grub/grub.cfg in Ubuntu but this does nothing.
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
I want to automoate some PPT -> PDF conversions, so I want to run openoffice in headless mode for scripting.
On my machine with X running I can start opemoffice in headless mode via
soffice -accept="socket,port=8100;urp;" -headless
This doesn't seem to work on a server with X not running.
$ soffice -accept="socket,port=8100;urp;" -headless
/usr/lib/openoffice/program/soffice.bin X11 error: Can't open display:
Set DISPLAY environment variable, use -display option
or check permissions of your X-Server
(See "man X" resp. "man xhost" for details)
$
The error doesnt seem to make sense as well, as the point of specifying -headless was so that I do not need X, while this command seems to look for X.
I was using win-7. I tried to install RHEL 6 today. [dual boot]/ = 40000 MB and /boot = 1000 MBThe installation completed successfully.The problem is that it is not showing the graphical mode. Only the terminal mode is available. I tried chvt 1-7but I am unable to go to the graphical mode. It is not appearing.What should I do? System config:MSI CR420 Laptop.ntel core i3-350MEdited after following user76871's answer:There is no Xorg.0.log file in /var/log/, There is no xdm in /etc/init.d/, there is no kdm also.I tried startx that also didn't work. I tried system-config-display but the display is not available at system-config-
View 2 Replies View RelatedI installed lucid last week, and this morning installed some updates that appeared in update manager and then started having issues with permissions so I rebooted. Now when I try and log in I get the message Authentication Error Normally this wouldn't be a problem I would reboot again hit ESC just before loading Grub appeared and go into recovery mode and change the password for my master user. But I never get the chance to press ESC, and even I hold the key down from the time my BIOS flash screen is up, I never get the GRUB menu.
View 1 Replies View Relatedi wonder why my ubuntu 10.10 don't have hibernate mode, as i remember in my previous install ubuntu 10.10 (in sama notebook) it's available i already don't have hibernate mode since, i format my last install ubuntu because driver vga. so i think it's not because not compatible softwareif it's hidden by somethings or bug how to show it again?
View 9 Replies View RelatedI'm having difficulty switching from GUI to console mode. I use ctrl-alt-f1 and the screen goes blank and I see a flashing cursor but I'm unable to do anything. I can switch back into GUI mode using ctrl-alt-f7. Also at times I see the word Ubuntu with 4 dots and 2 of them are orange if that's of any use. Like the initial boot loading screen.
I've tried going back to the default display drivers and that hasn't solved it. I'm using a CRT that's connected up to my display card via a VGA > DVI converter. *I've just checked and I can't get into recovery mode either
I used Ubuntu Tweak on ubuntu 10.10 and i don't remember what stupid thing i did. Now, my ubuntu never logs on, neither in recovery mode. I have attached the Camera Screenshot of the error screen. And i am a beginner, and it feels bad when my ubuntu doesn't work.
View 6 Replies View RelatedI am using a virtual pc software called VMWare workstation ver 7.1. platform win 7. I installed a redhat linux 5 in vmware. I am able to access graphical mode but unable to access the console mode (ctrl+alt+f1....f6).
View 4 Replies View Related