Bug#381737: update-grub: Does not like my custom built kernel
era eriksson
era at iki.fi
Sat Dec 27 17:32:08 UTC 2008
retitle 381737 update-grub: incorrect regex discards some kernels
thanks
> for kern in $(/bin/ls -1vr /boot | grep -v "dpkg-*" | grep -v "xen" | grep "^vmlinuz-") ; do
The quoted shell script snippet is actually incorrect for the dpkg-
case, too. I assume what is meant is simply "dpkg-" but the asterisk
will discard any line containing "dpkg", without the dash too (in
regular expression syntax, the asterisk means "zero or more occurrences
of the previous regular expression").
As a matter of fact, I would suggest to refactor the code into
for kern in $(/bin/ls -1vr /boot); do
case $kern in
*.dpkg-*|*-xen-*) continue;;
vmlinuz-*) ;;
*) continue ;;
esac
The *-xen-* wildcard seems to match the file names given to Xen kernels,
although I could be mistaken on that. (Unlike grep, the case statement
uses shell wildcards, not true regular expressions. The continue
statement causes the loop to skip to the next iteration.)
/* era */
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