Software :: Properly Unmounting RAID Drive In Recovery Mode?
Mar 9, 2010
I had a corrupted superblock in my RAID boot drive (/dev/md0), which I fixed with fsck in Recovery Mode.However, after rebooting, the same boot-up problem (hanging for hours) persists.When I re-enter Recovery Mode to examine the boot drive, I found its superblock was corrupted again (which I fixed again using fsck).Is there a proper reboot procedure which is gentle on the boot drive, such that it doesn't corrupt it? Or, is something else amiss
View 1 Replies
ADVERTISEMENT
Mar 9, 2010
I had a corrupted superblock in my RAID boot drive (/dev/md0), which I fixed with fsck in Recovery Mode.
However, after rebooting, the same boot-up problem (hanging for hours) persists. When I re-enter Recovery Mode to examine the boot drive, I found its superblock was corrupted again (which I fixed again using fsck).
Is there a proper reboot procedure which is gentle on the boot drive, such that it doesn't corrupt it? Or, is something else amiss?
View 1 Replies
View Related
May 10, 2010
A few days ago I began to get messages about my hard drive running out of space, and while I tried to clear out some files to make room I somehow managed to mess something up such that my main login screen appeared with hugely distorted letters and dialog boxes, and it wouldn't let me log in. While this is still the case, I can now log in by booting to recovery mode, selecting the netroot option, doing an "su myusername", and then executing "startx".
While this is a little inconvenient, it does bring up my standard Ubuntu operating environment and I now have access to all my files, email, internet, etc. There are still a few miscellaneous things that are messed up, however, and I don't yet know how to fix themIn particular:a) I can't print. I tried running the printer configuration tool from the System->Administration menu, but there's no "New Printer" icon. Alsowhile trying to get it working, I managed to generate a "The cups scheduler is not running" error message.b) I can't mount a USB drive. Every time I plug one in, I get an error message that says "Unable to mount drive, not authorized."c) Finally, there's the basic problem of still not being able to login without going thru my recovery mode workaround.I suspect all these problems are related, though I'd be happy to fix them one at a time if that's what it takes.
View 3 Replies
View Related
Feb 1, 2011
Could any RAID gurus kindly assist me on the following RAID-5 issue?I have an mdadm-created RAID5 array consisting of 4 discs. One of the discs was dropping out, so I decided to replace it. Somehow, this went terribly wrong and I succeeded in marking two of the drives as faulty, and the re-adding them as spare.
Now the array is (logically) no longer able to start:
mdadm: Not enough devices to start the array.Degraded and can't create RAID ,auto stop RAID [md1]
I was able to examine the disks though:
Code:
root@127.0.0.1:/etc# mdadm --examine /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 00.90.00
code....
Code:
mdadm --create --assume-clean --level=5 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2
As I don't want to ruin the maybe small chance I have left to rescue my data, I would like to hear the input of this wise community.
View 4 Replies
View Related
Aug 18, 2010
I've got a, as it seems to me, strange problem.I've inadvertently deleted my user from the group admin so I'm in the same situation of a lot of other users (read a lot of messages about it).My problem is that when restarted in recovery mode there is no way I can choose the 'drop to the root shell' or similar in the menu.The menu appears for a second and then I've got an empty screen. If I press a key I've been requested for a username and password that of course is not what I need.
View 2 Replies
View Related
Jul 29, 2010
I burned the live version of OpenSUSE 11.3 (Gnome, 32bit) to a CD to test the compatibility of an HP Pavilion p6510f. Although Xubuntu 10.4 booted up fine, OpenSUSE did not. A message about RAID would appear (too briefly to read) and then the computer would reboot.I checked in the BIOS and found that the SATA drive has 3 modes: IDE, RAID and AHCI. The hard drive was set to RAID.
When I changed the hard drive mode to IDE, I was able to run the OpenSUSE live CD; but the change ruined my Windows installation. Windows doesn't boot under IDE or RAID mode. (I have reset the mode to RAID and am restoring the Windows installation.) Is there an option/argument that I can pass to the kernel so that OpenSUSE will work under RAID mode? (Since Xubuntu 10.4 was able to do it, I'm assuming OpenSUSE should be able to.)
View 9 Replies
View Related
Nov 18, 2010
I 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 Related
Dec 7, 2010
I accidentally chose the "recovery mode" and now i dont know what to do. What commands i have to enter to go back to normal ubuntu mode with graphic etc?
View 9 Replies
View Related
Jul 28, 2010
I bought an external hard drive a couple of months ago and in the last few days it is having some problems.
Step 1, I turn it on and plug in the USB
/var/log/syslog:
Jul 28 13:52:39 bc1982 kernel: [61683.130027] usb 1-5: new high speed USB device using ehci_hcd and address 22
[Code].....
I turn off the drive, wait a while, then turn it on again in which sometimes it works fine, sometimes it doesn't. These errors have occured frequently in the past two days, but never before that
I don't know what these system logs mean, does anyone else?
View 3 Replies
View Related
Oct 25, 2010
I have an external DVD burner hooked up to an EEE PC 701SD. The disk has worked on a dell desktop computer, and a 701 (the first eee pc which I built the install on) without a problem, however when I boot up the install disk on the 701SD, I get a message telling me it's unable to download the kickstart file. It's being set to cdrom:/ks.cfg, which should work, but it isn't.... This exact same disk just did a full install on the 701 15 minutes before I ran it on this computer.
View 8 Replies
View Related
Jan 6, 2010
I stupidly unplugget my USB-cable, which was connected to my Nokia music phone, just as if I were in Windows. What do I do? I've lost my music on the phone, or, it seems it may be there (the correct mass of data), but my phone now tells me there is no music... Can I recover this? And - what is the correct way to unplug a USB unit in Ubuntu? To make it work, and find the phone/drive - I just typed "sudo lsusb" in the terminal, and it found and opened the memory automatically... How should you unmount the USB, and maybe even how do I get my data back?
View 7 Replies
View Related
Feb 22, 2010
This is my first post on LinuxQuestions.org, so I hope I am posting this this in the right forum, and English is not my mother language, so I hope I made myself understandable. I have this small Poweredge 350 server with two 80GB IDE hard drives running Red Hat Fedora 5, with software Raid 1. Some months ago hda started to have unrecoverable I/O read errors for some blocks. I leaved it that way for some time then hdb also started having same kind of issues. I got new hard drives and replaced hdb first, but the problem is mdadm hasn't been able to recover the raid. I have three LINUX RAID partitions conforming the raid 1 between hda and hdb
/dev/md0
/dev/md1
/dev/md2
[code]....
So how can I force the raid to be recovered ignoring the hda errors, is there a way to recover this?
View 7 Replies
View Related
May 1, 2010
How do I get int recovery mode in Ubuntu 10.04?
View 2 Replies
View Related
Jun 17, 2010
ok so i have been haviung the same problem for a while now and it is starting to **** me off, with every distribution of ubuntu i am getting thuis stupid message when i log in it is ionoly every once i a while that i get it but saince i have upgraded to 220.04 cannot fix it. i could fix it befor pretty easily, the probklem is when i get t o the login screen i get this generic login menu whne i attept to login i get this message somethiung like power management is not installed correctly. like i said b4 it was easy to fix, all i would do is to go to the ubuntu recovery thing, which is apparently not available ion 10.04 it does not evn give me a choice which to boot how do i get to recover mode in ubuntu 10.04?
View 2 Replies
View Related
Jan 1, 2011
I have a pretty huge (16x1TB disks) RAID6 LVM array on a Red Hat box which has really thrown a spanner in its works and I'm in a right fix: I was part-way through rebuilding the array with one replacement disk when a second died and a third seemed to have fallen from the array. I was replacing a disk which had been showing signs through SMART of probable failure (uncorrectable errors) and I noticed the second disk was just starting to give similar but slightly less numerous errors.
Now my logic based on a gradually growing understanding of the workings of the LVM is that I stand a chance of resurrecting things as the data held on the machine has been static for a while (a few days) before my attempted drive replacement and none of the disks have actually FAILED.
I have replaced the unit I removed so the physical devices are as they were before the exercise. I clearly need to carefully convince the configuration that it's "how it was" and there are a few meta-data files in the /etc/lvm/archive I believe I can use to re-"set the scene". Presently the machine fails to boot completely and it's patiently waiting in single-user mode for my next visit.
View 3 Replies
View Related
May 4, 2010
recovering a partial upgrade to Lucid.
4 core Xeon , was running 64 bit 9.10.
Upgrading over the weekend, but it failed, and suggested running dpkg-reconfigure -a
I couldn't launch any terminal/xterm windows, and couldn't login via ssh (kicked me out with xmalloc failure) or through a virtual console (showed garbled characters)
So I had to reboot.
Now the boot process -- I've tried recovery mode for all othe kernels I've got installed, but all fail in the same way:
Code:
Begin: Starting AppArmor profiles...
bash: xmalloc: ../bash/locale.c:73: cannot allotate 225469542417 bytes (0 bytes allocated)
Failure: AppArmor profiles failed to load.
[Code]....
It looks like it might be a libc problem. At any rate, I'd like to get into a recovery console to restart the update.
View 4 Replies
View Related
May 22, 2010
I run 9.10 from a live usb with persistece, and got /etc/sudoers awfully messed up. now i'm told to fix in through 'recovery mode', but i don't think live usb has one. is that true? what about my sudoers? is there another way to fix it?
View 3 Replies
View Related
Jul 19, 2010
Afraid I'm an utter newbie. I'm using 10.04 64 bit. I only noticed this after I tried to install the NVIDIA driver and all my ubuntu os'es blackscreened after restart. Because I couldn't even access recovery mode, I ended up reinstalling ubuntu, overwriting the old root.I thought the problem was due to the driver, but it's even now persisting. I can run the terminal (within X?) but if I try ctl alt <F1-6>, the screen just freezes until I do ctl alt F7. Furthermore, recovery mode still leaves a black screen after the initial loading text. I need it to work before I attempt reinstalling the NVIDIA drivers again, as I don't want to reinstall the OS and all the programs.
Sometimes it feels like I can do stuff in recovery mode, like Ctl Alt Delete or sudo shutdown, but sometimes not. Not sure if this is related, but grub also lists windows vista and windows recovery as the opposite they should be (I thought my windows was completely screwed until I tried windows recovery).
View 9 Replies
View Related
Nov 21, 2010
I have a HP mini 2133 with Ubuntu 10.04 NBR installed, but because the CMOS battery went flat and the date on the BIOS got reset to 1980, I now get a failure starting the machine (Superblock failure: Last mount time is in the future). I've already googled on this error, and the general advise seems to be "run fschk and let it complete", but my question is...I don't get a grub screen come up when Ubuntu boots, and Contrl/Alt/F* doesn't bring me to any login windows. So how do I interrupt the startup, and get to a login window before I get the mount error.
View 1 Replies
View Related
Mar 31, 2011
I messed up my video drivers and now can't get into recovery mode. Pressing the shift key isn't working. All that happens is the splash screen appears in faded looking colors and then fades to white.
I've got an ASUS N61 laptop with an ATI Radeon 5730 graphics card. I just upgraded to 10.10 from 10.4 and was trying to install the open source video drivers. I must have messed something up and can't get to the terminal now.
View 3 Replies
View Related
Apr 6, 2011
I'm having a huge problem right now and I could use some help deciphering what's wrong.I can't get my system to boot (see signature) and even the recovery mode is buggered. henever I try to boot, all I get is a flashing underscore. This is the same for both the normal and recovery modes Kernels. I've run the boot info script from a live cd and I've attached it to this post.
View 9 Replies
View Related
Jul 22, 2011
Ubuntu cannot boot. says Starting system V runlevel compatibility [fail]it is after replacing xorg.I want to enter in recovery mode. But when i try escape it just enters bios. if i try holding shift it just does nothing.So how to enter recovery mode in ubuntu 11.04 i just cannot get to grub menu.
View 3 Replies
View Related
Sep 15, 2010
I logged in recovery mode via grub, it shows several options: like, resume normal boot
When I enter the resume normal boot it shows something like this:
xxx login:
password:
And I entered my root password which I need for the command "sudo -i". But it shows incorrect password, why is it so?
Same thing happens with dpkg option also? Why is it so, I dont have any other passwords for my machine?
View 3 Replies
View Related
Sep 2, 2010
I am trying to run boot up in recovery mode in Lucid Lynx 10.04 on a Dell XPS M170. When it gets to [1107.134155][drm] nouveau 0000:01:00.0: GPU lockup-switching to software fbcom, it stops and freezes up and will go no further.
What does this mean and is there a fix?
View 1 Replies
View Related
Jun 18, 2010
I have a fileserver which is running Ubuntu Server 6.10. I had a RAID5 array consisting of the following disks:
Code:
/dev/sda1
/dev/sdb1
/dev/sdd1
/dev/md0 -
the raid drive for the above three disks. The sda1 disk has failed and the array is running on 2 of 3 disks
/dev/sdc (OS disk)
/dev/sde (new 2tb disk - unused)
/dev/sdf (new 2tb disk - unused)
My plan was to rebuild the array using the two new disks as RAID1. Would the best way to do this be to create a new RAID1 disk on /dev/md1 then copy all data over from /dev/md0? Also - this may sound stupid but since all 3 drives in md0 are identical i'm not sure physically which disk is bad. I tried disconnecting each disk one-by-one then rebooting but the system doesn't appear to want to boot without the bad drive connected. I've already failed the disk in the array with mdadm but i'm unsure of how to remove it properly.
View 3 Replies
View Related
Nov 16, 2010
After a large update of software I can nolonger open Squeeze. I get past the grub screen however before the gdm starts up the screen goes blank and stays that way. I have only one kernel showing on the grub screen.
I tried in Recovery Mode: Ctrl+Alt +F keys with effect and startx returns a blank screen, this is why I though to try loading another kernel to see if that helps. I'm using a Acer Laptop.
My question is: Is it possible while in Recovery Mode to load/install another kernel os that when I get back to the grub screen I have another kernel to try to boot into?
View 14 Replies
View Related
Mar 8, 2010
This is an urgent problem. I removed my propreitary ati display drivers because I had to update them but I don't know what happened. Now I can't boot. The screen shows the Ubuntu splash screen but then the login screen does not come on. I get a blank screen. Worst of all, I had removed Recovery entries from the grub so I can't boot into recovery mode so easily. It's urgent. I don't want to reinstall with my exams a week away.
View 2 Replies
View Related
May 9, 2010
in Ubuntu 10.04 I would like to enter in recovery mode, so I restarted computer and pressed <Esc> key just like in any previous version, but nothing happens Ubuntu still starts to boot.
How to enter into recovery mode in the latest version of Ubuntu?
View 3 Replies
View Related
May 18, 2010
I'm running 9.04 on a Powerbook G4 and, long story short, I accidentially put it into hibernate mode. When I try to turn it on, I am greeted with a blank screen after the bootloader. Unfortunately I can find no way to get out of this, since I'm using yaboot instead of grub. I can access my yaboot.conf file if I mount the HD from a live CD, but is there something I can put in there to tell it not to try to resume from hibernation? Or would deleting the swap partition at hda4 that apparently contains my hibernation data solve the problem?
View 8 Replies
View Related
Jul 6, 2010
I 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 Related
