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Calculate modules.img size dynamically #141

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Merged
marmarek merged 1 commit into from
Jul 10, 2026
Merged

Calculate modules.img size dynamically #141

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5 changes: 4 additions & 1 deletion kernel-modules/qubes-prepare-vm-kernel
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Original file line number Diff line number Diff line change
Expand Up @@ -44,10 +44,13 @@ function build_modules_img() {
cp -a "/usr/src/kernels/$kver" "$tmpdir/modules/$kver/build"
fi

size="$(du -sk "$tmpdir/modules")"
size="${size%% *}"
size=$[ "$size" * 110 / 100 ]
flags="-Enum_backup_sb=0,root_owner=0:0,no_copy_xattrs"
flags="$flags,hash_seed=dcee2318-92bd-47a5-a15d-e79d1412cdce"
PATH=/usr/sbin:/sbin:$PATH mkfs.ext3 -q -F "$flags" \
-d "$tmpdir/modules" "$tmpdir/modules.img" 768M
-d "$tmpdir/modules" "$tmpdir/modules.img" "$size"
/usr/lib/qubes/vm-modules-genfs "$tmpdir/modules.img" "$kver" immutable=yes
e2fsck -pDfE optimize_extents -- "$tmpdir/modules.img" >/dev/null
resize2fs -fM -- "$tmpdir/modules.img" >/dev/null
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