Nazarii Hnydyn defeb96286 [installer]: Prevent filesystem corruption (#7264) ... This improvement reads current SONiC version directly from `/proc/cmdline`. it supports `grub/aboot/uboot` bootloaders. **Code snippet**: ```bash cat /proc/cmdline | sed -n 's/^.*loop=\/*image-\(\S\+\)\/.*$/\1/p' ``` **Description**: ``` -n don't print lines s substitute ^.* matches anything before the <image_version> loop= matches <loop> kernel parameter \/*image- matches <image_version> prefix \(\S\+\) matches <image_version> group and assigns it to \1 \/.*$ matches anything after the <image_version> \1 replace everything with <image_version> p print it ``` closes #6267 #### Why I did it * To fix #6267 #### How I did it * Fixed installer scripts #### How to verify it 1. Write invalid SONiC version to sonic_version.yml 2. Run SONiC-To-SONiC update		2021-04-13 13:45:14 -07:00
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install.sh	[installer]: Prevent filesystem corruption (#7264)	2021-04-13 13:45:14 -07:00