As usual, for future reference…
When shutdown and init fail, and everything else fails too, and we do not have keyboard access to press SysRq:
echo 1 >> /proc/sys/kernel/sysrq echo b >> /proc/sysrq-trigger
Tag Archives: linux
OpenVAS and a problem creating accounts
For future reference…
When creating credentials (Configuration -> Credentials), this error may appear:
Internal error: create_lsc_credential_omp:4506 (GSA 6.0.1) An internal error occurred while creating a new credential. It is unclear whether the credential has been created or not. Diagnostics: Failure to receive response from manager daemon.
The solution is to run these commands:
openvasmd --create-credentials-encryption-key
mkdir /var/lib/openvas/gnupg
Copying the MBR…
A small tip. We want to copy the MBR from one disk to another disk with a different partition table.
Copying the MBR directly (only between identical disks!):
#dd if=/dev/sda of=/dev/sdb bs=512 count=1
This copies 512 bytes from disk sda to sdb, but it will work only with identical partition tables.
To copy between different disks:
Copy to a file:
# dd if=/dev/sda of=/tmp/mbrsda.bak bs=512 count=1
Restore to another disk:
# dd if=/tmp/mbrsda.bak of=/dev/sdb bs=446 count=1
This way we preserve the partitioning scheme.
Forcing Linux to detect new disks
To force detection of newly added disks in Linux running as a virtual machine under VMware:
echo "- - -" > /sys/class/scsi_host/host#/scan fdisk -l tail -f /var/log/message