On 01/11/2024 at 00:28, Alexander Andreyev wrote:
Proposed solution: backslash ('\') and dollar sign ('$') should be
properly escaped when copying kernel parameters from /proc/cmd to
/etc/grub/defaults.
For example, this parameter from /proc/cmd
memmap=0x1000$0x2f1ac000,0x1000$0x6af53000
can be written in /etc/grub/defaults as follows:
GRUB_CMDLINE_LINUX="memmap=0x1000\\\$0x2f1ac000,0x1000\\\$0x6af53000"
AFAIK grub-installer only writes the kernel parameters into debconf
database and grub-<platform> postinst script reads them from debconf and
writes them into /etc/default/grub. I wonder if '$' escaping should be
done by grub-installer or by grub-<platform> package postinst script.
IMO the latter would be best, so that the plain unescaped kernel
parameters are registered in debconf.
