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rdsosreport
2017 Apr 21
2
How to PXE kickstart hosts with little memory (Error: "Warning: /dev/root does not exist")?
...Can't mount root filesystem
[...] dracut-mount[xxx]: Warning: /dev/root does not exist
[...] dracut-mount[xxx]:/lib/dracut-lib.sh: line 1030: echo write error:
No space left on device
Starting Dracut Emergency Shell...
Warning: /dev/root does not exist
Generating "/run/initramfs/rsdosreport.txt"
[...]
It seems, that this is not related to local disk space - as I initally
thought - but to too small memory. It only happens with VMs with little
RAM (1024 MB). As soon as we raise the available memory to 2048 MB,
kickstarting works fine. The RHEL 7 installation guide states,...