#2550: Udev bootscript enhancement
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Reporter: mickb | Owner: lfs-b...@…
Type: enhancement | Status: new
Priority: normal | Milestone: 6.6
Component: Bootscripts | Version: SVN
Severity: minor | Keywords:
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Hi everybody,
Following the build of an initramfs for my LFS system, I would like to
suggest two possible enhancements concerning the bootscript "udev":
1- I think it could be useful to check if /dev is already a mountpoint
prior to try to mount:
if ! mountpoint /dev >/dev/null; then
...
fi
This check is already performed for /proc and /sys in the script
"mountkernfs". I think it's opportune to check /dev in the same way,
because an initramfs which uses udev (or mdev in busybox) may already have
mounted it (and moved it to the new root with a "mount -o move" command).
2- /dev is mounted using the tmpfs FS. However, the default maximum size
of allocable RAM to such a mount point is equal to 50% of the total amount
of available RAM. /dev may not grow over a very small size, even in the
worst cases. For security, it could be useful to limit the size, no ?
Example:
mount -n -t tmpfs tmpfs /dev -o size=256k,mode=755
Thank you for considering my suggestion.
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Ticket URL: <http://wiki.linuxfromscratch.org/lfs/ticket/2550>
LFS Trac <http://wiki.linuxfromscratch.org/lfs/>
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