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Fix: set vm.mmap_min_addr=0 in the --privileged container before the chroot.

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`sqv` (the ARM OpenPGP verifier used by apt) needs to mmap at address `0x1000`, but `vm.mmap_min_addr` is too high.
This commit is contained in:
Mingyang Li
2026-05-30 10:10:47 -07:00
parent 2b4eea9fc6
commit c9b912bfab
1 changed files with 6 additions and 0 deletions
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6
Makefile
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@@ -159,6 +159,12 @@ brainux:
sudo cp /usr/bin/qemu-arm-static brainux/usr/bin/
sudo cp ./os-brainux/setup_brainux.sh brainux/
sudo ./os-brainux/override-pre.sh ./os-brainux/override ./brainux
# Allow qemu-arm-static to reserve the guest address space at low virtual
# addresses (0x1000). On Linux hosts vm.mmap_min_addr defaults to 65536
# which blocks the reservation, causing armel binaries like sqv (apt's
# OpenPGP verifier) to fail. This requires --privileged in Docker.
sudo sh -c 'echo 0 > /proc/sys/vm/mmap_min_addr'
sudo -E chroot brainux /setup_brainux.sh
sudo rm brainux/setup_brainux.sh
sudo ./os-brainux/override.sh ./os-brainux/override ./brainux