Questions tagged [system-recovery]
The system-recovery tag has no usage guidance.
137
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Linux kernel development dual booting Linux/Windows
I want to get into kernel development, and the first practical step is obviously to run a Linux kernel to develop.
I think the best solution for me would be to dual boot windows and Linux, with Linux ...
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1
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Recover deleted files from a virtual disk image
I need help.
Accidentally, all files from root were deleted. It was not me)
It is easy if there would be simple disk partition. But, there is logical volumes used.
Centos 7
KVM
QEMU
$ ll server.img
-...
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1
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624
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Why is mv failing in this (bash) shell script in bash 3.2 during Mac OS recovery mode?
I'm trying to move some files using a bash script on a mac during recovery mode. I can successfully move the files by manually entering the command in Terminal after booting into recovery. However, ...
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Got stuck in Emergency mode with ACPI Error
I am using ubuntu 16.04. I probably have done sth which damaged the system file. After reboot, I am stucked in emergency mode. The error is about ACPI like below. I am not sure what is wrong here. ...
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Accidently moved /usr/lib64 how can I restore
I was trying to free up space and clueless moved /usr/lib64/ to "/srv/maraba_ssd_scratch/apelin/root_files/usr_lib64". The next thing I was going to do is create a symlink in usr for lib64 to point to ...
- 131
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392
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Is it possible to recover overwritten files from another operating System on the current operating system?
On my PC I had 2 operating sytems (ubuntu and windows) and for about 5 days I wanted to reinstall my Windows OS because of some bugs but instead of installing it on the partition where my old version ...
- 13
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1
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405
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How can you complete a Debian installation interrupted just before "Finish installation"?
I am trying to get Debian installed on a device that doesn't have enough battery capacity to power the display on full brightness for long enough to complete an installation, even while plugged in. I'...
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Ubuntu 18.4.2 failsafex running in low graphics mode
Ubuntu fail safex running in low graphics mode
I changed my theme from unity to gnome from ubuntu login and forgot to change the display manager to gdm3.
And then I restarted low graphics mode.
So ...
54
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1
answer
5k
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Change permisions of a file with my cat's help
root@system:~# less myfile
-bash: /bin/less: Input/output error
The root filesystem is dead. But my cat is still alive (in my memory):
root@system:~# cat > /tmp/somefile
C^d
root@system:~#
He's ...
- 4,632
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1
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Trouble on Debian boot up "Timed out waiting for device dev-disk..."
I can't boot my Debian 9.5 with following errors. If I remember correctly ACPI Errors were shown every time I turn on PC. But computer always boot right with these errors, so I didn't care much. The ...
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Cannot log in because of corrupted .bash_profile [duplicate]
I have created a new user account.
I can't access it because of a .bash_profile error.
How can I repair this type of error?
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2k
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How to import bash history with correct time&date from a history output?
I have a file with my bash history and want to "import" the commands on a new machine. The file contains a history output formatted as HISTTIMEFORMAT="%F%t%T%t":
$ history > history.txt
So the ...
- 209
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1
answer
407
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/var/lib/dpkg/ disappeared after fsck
All apt-like commands failed to create the lock file, because /var/lib/dpkg/ doesn't exist. Also, /lost+found/ has contents:
pi@pi-top:~ $ sudo ls -al /lost+found/
total 102456
drwx------ 11 root ...
- 527
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1
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478
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CentOS trying to mount non existant RAID array -> recovery mode
My first try using RAID1 ended with CentOS not starting anymore - throwing me into Recovery mode. Luckily a test system
At first i set-up the raid1 which worked rather good. Later i noticed that my ...
- 131
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1
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140
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Failure to boot after running bash script
I just recently ran a bash script that froze up my Linux mint machine, and I had no choice but to hold power key to perform a hard power off.
Now my machine will not boot.
I have no clue if the bash ...
- 614
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1
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9k
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busybox and nfs mounts
As part of a startup a rescuecd uses busybox to mount a nfs share with data, but during the nfs share mount, busybox (version v1.18.2 from systemrescuecd) always fails to mount the nfs share. And i do ...
- 1,060
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679
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recovery boot hangs at "systemd[1]: Listening on Journal Socket"
Can no longer boot into Debian testing, possibly because I accidentally uninstalled some undocumentedly critical package.
In regular boot, system hangs after confirming that the root fs is clean.
In ...
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1
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81
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Linux Mint kernel damage
First off: I am running Linux Mint 18.2 on an External HDD with Gnome 3 as my desktop.
Recently, I was trying to figure out how to compress my OS so I could move it to a different system. So, I ran:
...
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17
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3
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11k
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Can't log in because I forgot my user name
My friend had put Linux Mint 17.3 Cinnamon 64 bit on my computer. Well, I forgot the user name, so I did a search on the Net for "forgot username linux" and came here.
I got the suggestion to hit '...
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60
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How to avoid a situation where the system is too out-of-memory to even show or kill processes?
I recently ran into a situation where a system was too out-of-memory to even run pkill or htop, or to even create a swap file.
(But somehow I could still SSH into the system, so at least I had a ...
- 3,083
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1
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21
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Delete file in hard drive root folder using recovery disk
I made changes to my xorg.conf file in /etc/X11/ after backing it up.
Some bad things happened and now I cannot access tty or the logon screen.
The only way is via a recovery USB drive.
How can I ...
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1
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7k
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What command is run when the dpkg option is selected in recovery mode?
I recently ran into the following situation:
I could not boot my computer normally. (I was shown a blinking cursor after the boot-loader and Ubunutu load screen but before the login page while never ...
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1k
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Did Windows update corrupt a Linux partition? [closed]
I have a dual boot system with Linux Mint 18.1 and Windows 10, which I only use occasionally. I booted into Windows 10, and it started applying updates. Upon restarts I was presented with the:
error: ...
- 161
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1
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2k
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Reinstalling only packages with missing or corrupt files on a non-running system?
1st. Thanks in advance.
This is somewhat like # 216697: Reinstalling packages with missing/corrupt files except in that person's situation, after recovery, the system still worked. Mine does not. Can'...
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3
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How to recoever after executing rm -f /bin/su; rm -f /usr/bin/sudo (with correct privileges)?
This is a theoretical question. What if I run those commands with correct privileges? How could I restore su and sudo?
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Can I create a Live DVD of my currently running Debian system?
Can I create a live CD of my currently running Debian setup? (Debian 9.1 with KDE with all the configurations I made, all the packages I installed and some files.)
How can I do that?
And in addition ...
- 4,248
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2
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379
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Set permissions using chmod whilst in the wrong directory
I was doing a magento patch via Terminal and ran the following commands whilst in / rather than /public_html
find . -type d -exec chmod 500 {} \;
find . -type f -exec chmod 400 {} \;
find var/ -type ...
- 101
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2
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517
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Can `chmod -R 777 /bin` be recovered from?
I know that chmod -R 777 / is extremely destructive, and I know that a chmod -R 000 /bin can be recovered by using an additional disk, but I'm wondering about chmod -R 777 /bin.
If I have a root ...
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590
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I overwrote all libraries in /lib64 by accident, how to fix?
I accidentally used windows copy syntax when copying libraries from one folder to another:
mv /usr/local/lib/libboost** /lib64/*
This overwrote all libraries needed to run the system. The only ...
- 1,776
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113
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How to recover Ubuntu?
This question has come from the previous question I asked in this site.
My laptop has 2 Operating systems of Ubuntu as can be seen in the screen-shot below. The one where I logged in is visible in ...
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Recover Debian 8.7 after accidently purging essential packages [closed]
Trying to get rid of strange startup errors I purged some of the essential packages. My xfce4 doesn't start on boot, which is not too bad, I still have the tty, but I also have no network connection, ...
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3
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unix - accidentally moved everything under root to /old - Solaris 10
As the headline says everything or almost everything important as root under root (/) was moved to /old on a Solaris 10 machine. So now the typical fault when trying when running commands are Cannot ...
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Linux Slackware ( Broken - kernel panic )
I wanted to update my system (Slackware current) which was in multilib. Before updating, I tried to remove all packages (compat32 and multilib). Big mistake !!! This have broken some crucial symlinks ...
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2
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690
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Fix corrupt /bin/sh link
I used to access it via SSH but I wanted to connect to it with zsh instead of bash.
I made a mistake with my Synology NAS:
I deleted the /bin/sh symbolic link to /bin/bash to replace it with /bin/...
- 159
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2k
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reset $SHELL to it's default value [duplicate]
I read the answers on those questions (this && this), neither of them work for me!
% uname --operating-system --kernel-name --kernel-version --kernel-release
Linux 4.9.6-200.fc25.x86_64 #1 ...
- 1,352
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3
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652
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Creating recovarable disk image [closed]
Laptop I want to buy comes with preinstalled windows 10. I want to install linux on this laptop but I want to have option to recover windows (reset to factory settings). Because of that I want to make ...
- 535
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1
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74
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Debian computer: usr part corrupt
I have a Debian-Windows dualbooted machine. I've split up all areas into separate parts, eg. boot, var, tmp, etc... are all partitions. Now I can't boot Linux because the usr partition is giving I/O ...
- 155
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2k
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Kali Linux hangs on boot after hard reset
I had to perform a hard reset after my machine became unresponsive. Now when I try to boot, it hangs as shown in this image: .
I am able to boot into recovery mode, so have access to a terminal I can ...
- 109
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2
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last - user reboot - logged-in period
I have the following lines extracted from the output of last. It shows two reboots, and that userA was logged in right up to the reboot. So far, I am able to interpret the data.
However, what I do ...
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Corrupt ext4 filesystem after e2image interrupted
I have a ~450 gigabyte ext4 filesystem, located at /dev/sda5 on my computer. The partition it resided in, however, was about a gigabyte bigger. So I used the command e2image -ra -p -O XXXX to move the ...
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How to create a persistent USB key of a running system?
How to create a persistent and bootable USB of a running system on a computer without shut down.
The key would be the same as the computer and offer ways to use it and install it as is on some other ...
- 2,127
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1
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328
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Can't downgrade Linux kernel: not enough free disk space
I'm stuck in an archiso/chrooted environment (booting from a USB flash drive) because my Wi-Fi drivers are incompatible with Linux 4.8.7-1, and cause the system to hang at boot. I'm trying a few ...
- 2,094
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1
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205
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Recover user database from home directory UID's
I asked a question previously about recovering a RAID 1 partition where the UUID's of the member partitions had all been zeroed. Having received no response in that thread, I'm now forced to reinstall ...
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3
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Installing only Linux on a mac and in case, go back to macOS
I have this mid 2011 iMac 21.5" Core i5 on which I would like to install Linux (Debian) as the only OS, so I'd like to throw away the entire macOS installation. The web is full of tutorials for doing ...
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2k
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Recover su password after modifying /etc/shadow
I follow a tutorial about the race condition exploit.
I made a copy of my /etc/shadow file.
And then replace all the contain by one line
root::1:99999:::::
However. My old password doesn't work ...
- 181
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650
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Did i really screw up my system using chmod? [duplicate]
So I was messing around with permissions on a linux box and was trying to change permissions so a user couldnt access any folders other than what is in their home directory. I did sudo chmod 0750 /...
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883
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Is it possible to recover from corrupted libc on Redhat?
I have created the following unfortunate situation.
While trying to resolve this error when running a binary :
/lib64/libc.so.6 : version 'GLIBC_2.15' not found
Looking further I found that libc....
- 21
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1
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118
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Failed to execute, How to enter terminal before login [closed]
I've modified my ~/.xinitrc and now the X11 startup fails. I just see a message on the screen saying something like Failed to execute.
I don't have a recovery option in my grub, so I cannot boot into ...
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390
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How to Recover Debian of LK backports where runlevel conflict?
I did as root in my Debian 8.5 because wanted to test Matlab's thing but the commands removed some dependencies which affect the runlevel
Run apt-get purge openjdk-7-jdk openjdk-7-doc openjdk-7-jre-...
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90
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Restore system file permissions
While I was setting up an Ubuntu server (EC2), I accidentally run the following:
sudo chown -R www-data.www-data /*
Anyway, is there an easy way to restore all the original file permissions?
I am ...
