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Merged
ExtremeFiretop merged 1 commit into from
Jun 3, 2025
Merged

Modified RAM Requirements for F/W Flash Process #480

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229 changes: 196 additions & 33 deletions MerlinAU.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@
#
# Original Creation Date: 2023-Oct-01 by @ExtremeFiretop.
# Official Co-Author: @Martinski W. - Date: 2023-Nov-01
# Last Modified: 2025-May-31
# Last Modified: 2025-Jun-02
###################################################################
set -u

Expand Down Expand Up @@ -3587,8 +3587,65 @@ _HasRouterMoreThan256MBtotalRAM_()
{
local totalRAM_KB
totalRAM_KB="$(awk -F ' ' '/^MemTotal:/{print $2}' /proc/meminfo)"
[ -n "$totalRAM_KB" ] && [ "$totalRAM_KB" -gt 262144 ] && return 0
return 1
if [ -n "$totalRAM_KB" ] && [ "$totalRAM_KB" -gt 262144 ]
then return 0
else return 1
fi
}

##-------------------------------------##
## Added by Martinski W. [2025-Jun-01] ##
##-------------------------------------##
_HasRouterMoreThan512MBtotalRAM_()
{
local totalRAM_KB
totalRAM_KB="$(awk -F ' ' '/^MemTotal:/{print $2}' /proc/meminfo)"
if [ -n "$totalRAM_KB" ] && [ "$totalRAM_KB" -gt 524288 ]
then return 0
else return 1
fi
}

##-------------------------------------##
## Added by Martinski W. [2025-Jun-01] ##
##-------------------------------------##
#---------------------------------------------------------------------#
# We define TWO main phases for RAM requirement:
# In phase ONE, we ask for more RAM Available BEFORE downloading
# and extracting the F/W image file.
# In phase greater than ONE, we ask for less RAM Available AFTER
# the F/W image file has been downloaded and extracted.
#---------------------------------------------------------------------#
_GetAvailableRAM_PercentOverheadNum_()
{
local phaseNum=1 availableRAM_PercentOverheadNum

if [ $# -eq 0 ] || [ -z "$1" ] || \
! echo "$1" | grep -qE "^phase#[1-9]$"
then phaseNum=1
else phaseNum="$(echo "$1" | awk -F '#' '{print $2}')"
fi

if _HasRouterMoreThan512MBtotalRAM_
then ##Physical RAM is 1.0GB or more##
if [ "$phaseNum" -lt 3 ]
then availableRAM_PercentOverheadNum=50
else availableRAM_PercentOverheadNum=40
fi
elif _HasRouterMoreThan256MBtotalRAM_
then ##Physical RAM is 512.0MB##
if [ "$phaseNum" -lt 3 ]
then availableRAM_PercentOverheadNum=35
else availableRAM_PercentOverheadNum=25
fi
else ##Physical RAM is 256.0MB##
if [ "$phaseNum" -lt 3 ]
then availableRAM_PercentOverheadNum=35
else availableRAM_PercentOverheadNum=30
fi
fi
echo "$availableRAM_PercentOverheadNum"
return 0
}

##----------------------------------------##
Expand Down Expand Up @@ -3645,24 +3702,42 @@ _GetFreeRAM_KB_()
}

##----------------------------------------##
## Modified by Martinski W. [2024-Jun-05] ##
## Modified by Martinski W. [2025-Jun-01] ##
##----------------------------------------##
theZIP_FileSizeKB=0
theZIP_FileSizeBytes=0

_GetRequiredRAM_KB_()
{
local theURL="$1"
local zip_file_size_bytes zip_file_size_kb overhead_kb
local total_required_kb overhead_percentage=50
local theURL="$1" thePhase overhead_percentage
local overhead_KB total_required_KB

if [ $# -lt 2 ] || [ -z "$2" ] || \
! echo "$2" | grep -qE "^phase#[1-9]$"
then thePhase='phase#1'
else thePhase="$2"
fi
overhead_percentage="$(_GetAvailableRAM_PercentOverheadNum_ "$thePhase")"

if [ -z "$theZIP_FileSizeBytes" ] || \
[ "$theZIP_FileSizeBytes" = "0" ] || \
! echo "$theZIP_FileSizeBytes" | grep -qE "^[0-9]+$"
then
theZIP_FileSizeBytes="$(curl -LsI --retry 4 --retry-delay 5 "$theURL" | grep -i Content-Length | tail -1 | awk '{print $2}')"
fi

# Size of the ZIP file in bytes #
zip_file_size_bytes="$(curl -LsI --retry 4 --retry-delay 5 "$theURL" | grep -i Content-Length | tail -1 | awk '{print $2}')"
# Bytes to KBytes #
zip_file_size_kb="$((zip_file_size_bytes / 1024))"
if [ -n "$theZIP_FileSizeBytes" ] && \
[ "$theZIP_FileSizeBytes" -gt 0 ] && \
[ "$theZIP_FileSizeKB" -eq 0 ]
then
theZIP_FileSizeKB="$((theZIP_FileSizeBytes / 1024))"
fi

# Calculate overhead based on the percentage #
overhead_kb="$((zip_file_size_kb * overhead_percentage / 100))"
overhead_KB="$((theZIP_FileSizeKB * overhead_percentage / 100))"

total_required_kb="$((zip_file_size_kb + overhead_kb))"
echo "$total_required_kb"
total_required_KB="$((theZIP_FileSizeKB + overhead_KB))"
echo "$total_required_KB"
}

##----------------------------------------##
Expand All @@ -3672,12 +3747,12 @@ _ShutDownNonCriticalServices_()
{
for procName in nt_center nt_monitor nt_actMail
do
procNum="$(ps w | grep -w "$procName" | grep -cv "grep -w")"
if [ "$procNum" -gt 0 ]
then
printf "$procName: [$procNum]\n"
killall -9 "$procName" && sleep 1
fi
procNum="$(ps w | grep -w "$procName" | grep -cv "grep -w")"
if [ "$procNum" -gt 0 ]
then
printf "$procName: [$procNum]\n"
killall -9 "$procName" && sleep 1
fi
done

for service_name in conn_diag samba nasapps
Expand All @@ -3691,6 +3766,89 @@ _ShutDownNonCriticalServices_()
done
}

##-------------------------------------##
## Added by Martinski W. [2025-Jun-01] ##
##-------------------------------------##
#---------------------------------------------------------------------#
# As a last resort, to free more available RAM, we now attempt to
# disable and shutdown existing ASUS/TrendMicro services such as:
# AsusNat Tunnel, AiProtection, Traffic Analyzer/Monitor, and
# Bandwidth Monitor. These appear to use quite a lot of RAM.
#---------------------------------------------------------------------#

apps_analysis_SAVED=""
bwdpi_db_enable_SAVED=""
aae_disable_force_SAVED=""
wrs_protect_enable_SAVED=""
networkmap_fullscan_SAVED=""
AsusTrendMicroProcsDisabled=false

_DisableAsusTrendMicroProcesses_()
{
apps_analysis_SAVED="$(nvram get apps_analysis)"
bwdpi_db_enable_SAVED="$(nvram get bwdpi_db_enable)"
aae_disable_force_SAVED="$(nvram get aae_disable_force)"
wrs_protect_enable_SAVED="$(nvram get wrs_protect_enable)"
networkmap_fullscan_SAVED="$(nvram get networkmap_fullscan)"

if [ "$apps_analysis_SAVED" = "1" ] || \
[ "$bwdpi_db_enable_SAVED" = "1" ] || \
[ "$aae_disable_force_SAVED" = "0" ] || \
[ "$wrs_protect_enable_SAVED" = "1" ]
then
Say "Temporarily disabling some Asus/TrendMicro services..."
"$isInteractive" && printf "Please wait.\n"
nvram set apps_analysis=0 ; sleep 1
nvram set bwdpi_db_enable=0 ; sleep 1
nvram set aae_disable_force=1 ; sleep 1
nvram set wrs_protect_enable=0 ; sleep 1
nvram set networkmap_fullscan=2
AsusTrendMicroProcsDisabled=true
sleep 2
fi

for procName in aaews mastiff dcd wred bwdpi_wred_alive bwdpi_check hour_monitor netool
do
procNum="$(ps w | grep -w "$procName" | grep -cv "grep -w")"
if [ "$procNum" -gt 0 ]
then
printf "$procName: [$procNum]\n"
killall -9 "$procName" && sleep 1
fi
done

if "$isInteractive" && "$AsusTrendMicroProcsDisabled"
then printf "\nDone.\n" ; fi
}

##-------------------------------------##
## Added by Martinski W. [2025-Jun-01] ##
##-------------------------------------##
_ReEnableAsusTrendMicroProcesses_()
{
if ! "$AsusTrendMicroProcsDisabled"
then return 0 ; fi

Say "Re-enabling existing Asus/TrendMicro services..."
"$isInteractive" && printf "Please wait.\n"

nvram set apps_analysis="$apps_analysis_SAVED"
sleep 1
nvram set bwdpi_db_enable="$bwdpi_db_enable_SAVED"
sleep 1
nvram set aae_disable_force="$aae_disable_force_SAVED"
sleep 1
nvram set wrs_protect_enable="$wrs_protect_enable_SAVED"
sleep 1
nvram set networkmap_fullscan="$networkmap_fullscan_SAVED"
sleep 1
AsusTrendMicroProcsDisabled=false

"$isInteractive" && printf "\nDone.\n"
Say "A reboot may be necessary to fully restart Asus/TrendMicro services..."
return 0
}

##------------------------------------------##
## Modified by ExtremeFiretop [2024-Jan-26] ##
##------------------------------------------##
Expand Down Expand Up @@ -3764,7 +3922,7 @@ _LogMemoryDebugInfo_()
}

##----------------------------------------##
## Modified by Martinski W. [2024-Mar-26] ##
## Modified by Martinski W. [2025-Jun-01] ##
##----------------------------------------##
check_memory_and_prompt_reboot()
{
Expand All @@ -3790,6 +3948,7 @@ check_memory_and_prompt_reboot()

# Attempt to clear dentries and inodes. #
Say "Attempting to free up memory again more aggressively..."
_DisableAsusTrendMicroProcesses_
sync; echo 2 > /proc/sys/vm/drop_caches
sleep 2

Expand All @@ -3806,7 +3965,6 @@ check_memory_and_prompt_reboot()

# Stop Entware services to free some memory #
_EntwareServicesHandler_ stop

_ShutDownNonCriticalServices_

sync; echo 3 > /proc/sys/vm/drop_caches
Expand Down Expand Up @@ -3835,18 +3993,19 @@ check_memory_and_prompt_reboot()
Say "Insufficient memory to continue. Exiting script."
# Restart Entware services #
_EntwareServicesHandler_ start
_ReEnableAsusTrendMicroProcesses_

_DoCleanUp_ 1 "$keepZIPfile" "$keepWfile"
_DoExit_ 1
fi
else
Say "Successfully freed up memory. Available: ${availableRAM_kb}KB."
Say "Successfully freed up memory. RAM Available: ${availableRAM_kb} KB."
fi
else
Say "Successfully freed up memory. Available: ${availableRAM_kb}KB."
Say "Successfully freed up memory. RAM Available: ${availableRAM_kb} KB."
fi
else
Say "Successfully freed up memory. Available: ${availableRAM_kb}KB."
Say "Successfully freed up memory. RAM Available: ${availableRAM_kb} KB."
fi
fi
}
Expand Down Expand Up @@ -8738,11 +8897,11 @@ Please manually update to version ${GRNct}${MinSupportedFirmwareVers}${NOct} or
return 1
fi

##---------------------------------------##
## Added by ExtremeFiretop [2023-Dec-09] ##
##---------------------------------------##
##----------------------------------------##
## Modified by Martinski W. [2025-Jun-01] ##
##----------------------------------------##
# Get the required memory for the firmware download and extraction
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link")"
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link" 'phase#1')"
if ! _HasRouterMoreThan256MBtotalRAM_ && [ "$requiredRAM_kb" -gt 51200 ]
then
if ! _ValidateUSBMountPoint_ "$FW_ZIP_BASE_DIR" 1
Expand Down Expand Up @@ -8810,11 +8969,12 @@ Please manually update to version ${GRNct}${MinSupportedFirmwareVers}${NOct} or
fi
fi

##------------------------------------------##
## Modified by ExtremeFiretop [2024-Feb-18] ##
##------------------------------------------##
##----------------------------------------##
## Modified by Martinski W. [2025-Jun-01] ##
##----------------------------------------##
freeRAM_kb="$(_GetFreeRAM_KB_)"
availableRAM_kb="$(_GetAvailableRAM_KB_)"
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link" 'phase#2')"
Say "Required RAM: ${requiredRAM_kb} KB - RAM Free: ${freeRAM_kb} KB - RAM Available: ${availableRAM_kb} KB"
check_memory_and_prompt_reboot "$requiredRAM_kb" "$availableRAM_kb"

Expand All @@ -8838,6 +8998,7 @@ Please manually update to version ${GRNct}${MinSupportedFirmwareVers}${NOct} or

freeRAM_kb="$(_GetFreeRAM_KB_)"
availableRAM_kb="$(_GetAvailableRAM_KB_)"
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link" 'phase#3')"
Say "Required RAM: ${requiredRAM_kb} KB - RAM Free: ${freeRAM_kb} KB - RAM Available: ${availableRAM_kb} KB"
check_memory_and_prompt_reboot "$requiredRAM_kb" "$availableRAM_kb"

Expand All @@ -8859,6 +9020,7 @@ Please manually update to version ${GRNct}${MinSupportedFirmwareVers}${NOct} or

freeRAM_kb="$(_GetFreeRAM_KB_)"
availableRAM_kb="$(_GetAvailableRAM_KB_)"
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link" 'phase#4')"
Say "Required RAM: ${requiredRAM_kb} KB - RAM Free: ${freeRAM_kb} KB - RAM Available: ${availableRAM_kb} KB"
check_memory_and_prompt_reboot "$requiredRAM_kb" "$availableRAM_kb"

Expand Down Expand Up @@ -8945,10 +9107,11 @@ Please manually update to version ${GRNct}${MinSupportedFirmwareVers}${NOct} or
fi

##----------------------------------------##
## Modified by Martinski W. [2024-Mar-16] ##
## Modified by Martinski W. [2025-Jun-01] ##
##----------------------------------------##
freeRAM_kb="$(_GetFreeRAM_KB_)"
availableRAM_kb="$(_GetAvailableRAM_KB_)"
requiredRAM_kb="$(_GetRequiredRAM_KB_ "$release_link" 'phase#5')"
Say "Required RAM: ${requiredRAM_kb} KB - RAM Free: ${freeRAM_kb} KB - RAM Available: ${availableRAM_kb} KB"
check_memory_and_prompt_reboot "$requiredRAM_kb" "$availableRAM_kb"

Expand Down
2 changes: 1 addition & 1 deletion README.md
View file
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
# MerlinAU - AsusWRT-Merlin Firmware Auto Updater
## v1.4.7
## 2025-May-18
## 2025-Jun-??

## WebUI:
![image](https://github.com/user-attachments/assets/a2197262-ca35-451a-8645-311896e1495e)
Expand Down