Messages in this thread | | | Subject | Re: Swsusp, resume and kernel versions | From | Nigel Cunningham <> | Date | Fri, 18 Feb 2005 21:34:25 +1100 |
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Hi Stefan.
For Suspend2, we also put a device id in the space, so there's only room for one character, which is a lower or upper case Z. (We also validate the device ID, so a random Z won't cause an oops).
Thanks for the code. With your/Suse's permission, I'll ask Bernard (cc'd) to include the script in the docs somewhere with the appropriate credit.
Thanks and regards,
Nigel
On Fri, 2005-02-18 at 08:05, Stefan Seyfried wrote: > Nigel Cunningham wrote: > > > If the mistakenly booted kernel isn't suspend enabled, however, you need > > a more generic method of removing the image, such as mkswapping the > > storage device. This is what I was speaking of. > > The following code is used in the SUSE bootscripts to do exactly this: > > ---------------------------------------------------- > get_swap_id() { > local line; > fdisk -l | while read line; do > case "$line" in > /*Linux\ [sS]wap*) echo "${line%% *}" > esac > done > } > > check_swap_sig () { > local part="$(get_swap_id)" > local where what type rest p c > while read where what type rest ; do > test "$type" = "swap" || continue > c=continue > for p in $part ; do > test "$p" = "$where" && c=true > done > $c > case "$(dd if=$where bs=1 count=6 skip=4086 2>/dev/null)" in > S1SUSP|S2SUSP) mkswap $where > esac > done < /etc/fstab > } > --------------------------------------------------------------------- > > This invalidates the suspend signature if the kernel has not already > done it. It probably does not cover the softwaresuspend2 signature but > that should be trivial to add. > > Regards, > > Stefan -- Nigel Cunningham Software Engineer, Canberra, Australia http://www.cyclades.com
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