mirror of
https://github.com/fosslinux/live-bootstrap.git
synced 2026-03-23 11:36:32 +01:00
40 lines
1,015 B
Bash
40 lines
1,015 B
Bash
#!/bin/bash
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# SPDX-License-Identifier: GPL-3.0-or-later
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set -e
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new_kernel="/boot/vmlinuz-linux64"
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current_kernel="/boot/vmlinuz"
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backup_kernel="/boot/vmlinuz-32bit.backup"
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quiesce_filesystem_for_kexec() {
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if command -v dhcpcd >/dev/null 2>&1; then
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dhcpcd -x >/dev/null 2>&1 || true
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fi
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sync
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echo s > /proc/sysrq-trigger || true
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echo u > /proc/sysrq-trigger || true
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mount -o remount,ro / || true
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}
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if [ ! -f "${new_kernel}" ]; then
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echo "Missing new kernel image: ${new_kernel}" >&2
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exit 1
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fi
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if [ -f "${current_kernel}" ]; then
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cp -af "${current_kernel}" "${backup_kernel}"
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fi
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cp -af "${new_kernel}" "${current_kernel}"
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sync
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mkdir -p /etc
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if [ "${BARE_METAL}" = True ]; then
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kexec -l "${current_kernel}" \
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--append="root=/dev/sda1 init=/init rw rootwait consoleblank=0"
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else
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kexec -l "${current_kernel}" --console-serial \
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--append="console=ttyS0 root=/dev/sda1 init=/init rw rootwait consoleblank=0"
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fi
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quiesce_filesystem_for_kexec
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kexec -e
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