fixing upgrade check
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@ -21,7 +21,7 @@ get_ext() {
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# Reading the current version in the DB.
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# If the DB exist but the alternc_status table doesn't, we will initialize it below
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# In that case we search where we upgrade from in /var/lib/alternc/backups/lastversion from debian.postinstall script
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oldvers="`mysql --defaults-file=/etc/alternc/my.cnf --skip-column-name -e "SELECT value FROM alternc_status WHERE name='alternc_version'"'`"
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oldvers="`mysql --defaults-file=/etc/alternc/my.cnf --skip-column-name -e "SELECT value FROM alternc_status WHERE name='alternc_version'"||true`"
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if [ -z "$oldvers" ]
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then
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# no version number, we check from /var/lib/alternc
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