#Sades 7.1 cannot find any device how to
#Sades 7.1 cannot find any device password

Here is a walkthrough example of booting into emergency mode to remove a false entry in /etc/fstab. Important: After editing the /etc/fstab file in emergency mode, you must run the following for safety measures: # systemctl daemon-reload Non-existent mount point in /etc/fstab.The following are examples of problems that require the emergency.target: Most of these issues will require us to use the emergency.target since 'rescue' requires a more functional system. You CANNOT use the rescue.target to fix an /etc/fstab error. One of the most common boot time errors is a misconfigured /etc/fstab file. You should change the numerical value to reflect the boot you need to view. This will show you the error logs from the boot that occurred before the most recent. A negative number for this argument will filter on previous boots. Without any arguments, -b will filter output only to messages about the last boot. To inspect the logs of a previous boot, use the -b option with journalctl. # mkdir -p 2775 /var/log/journal & chown :systemd-journal /var/log/journal Follow these steps if you need to set up persistent boot logging.ДЄs root, create the log file. If you make the logs persistent, they can be examined with the journalctl tool. The journald logs are usually stored in memory and released on boot. It can be useful to view logs of previous failed boot attempts. Use exit a second time, and the system will cleanly boot from the point we interrupted it. If you use SELinux, you should consider re-labeling all files before continuing the boot process.

#Sades 7.1 cannot find any device password

# chroot /sysrootД¬hange the password for the desired user. Remount it with write privileges as /sysroot.

Append rd.break ( no quotes), which will break the boot process just before the control is handed from initramfs to the actual system.ДЄ root shell is presented with the root filesystem mounted in read-only mode on /sysroot.

You may want to remove all other consoles other than TTY0, however, this step may not be necessary for your environment.

Move the cursor to the end of the line that specifies the kernel ( vmlinuz).

If you need to recover credentials, use this method to gaining access to the instance.

You will then be prompted with the root password to continue, once you exit the rescue shell, the boot process will continue to load your default target.

Find the line that specifies the kernel version ( vmlinuz) and append the following to it: systemd.unit=rescue.target.

Interrupt the grub2 menu by pressing 'e' to edit when prompted with the grub menu.

#Sades 7.1 cannot find any device how to

This example demonstrates how to use the rescue.target which is 'single user mode'. There are times when you will need to boot into single user mode to fix an issue with the operating system. This will start/stop all services associated with the new target, so use caution (see systemctl isolate new.target). You can change this at run time by isolating the target. To view the current default boot target, use the following: systemctl get-default

emergency.target (sulogin prompt, initramfs pivot complete and system root mounted on / as read only).rescue.target (sulogin prompt, basic system initialization).

multi-user.target (multi user mode, text based login).

If it is not reached, services such as httpd, nfs, and ldap cannot be started. For example:, rvice, and so forth need to be started and working before network.target can be reached. They have a 'before' and 'after' configuration for exactly what services are required to meet that target. Systemd looks for default target and starts/stops units as configured while automatically solving dependencies and login page appears.ДЇor more information on the boot process, refer to the official OS documentation for your system.Kernel root FS switched from initramfs root ( /sysroot) to system rootfs ( /) and systemd re-executes as system version.Systemd executes all initrd targets (mounts filesystem on /sysroot).Kernel initializes hardware + executes /sbin/init as pid 1.Boot loader passes control to the kernel.Boot loader loads kernel and initramfs.This troubleshooting guide describes common problems and solutions for instances that fail to boot correctly.