vasilito
ffbe098ef8
TLC (Twilight Commander) was missing from both ISO configs. Added
tlc = {} to [packages] in redbear-mini.toml and redbear-full.toml.
Created missing symlink: recipes/tui/tlc -> ../../local/recipes/tui/tlc.
55 lines
1.5 KiB
Bash
Executable File
55 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# qemu-ram.sh — Boot Red Bear OS from RAM-disk (tmpfs)
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#
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# Copies the disk image into tmpfs before launching QEMU, eliminating
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# all host disk I/O during OS runtime.
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#
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# Usage: invoked by `make qemu-ram` — not intended for direct use.
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#
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# Arguments:
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# $1 QEMU binary (e.g. qemu-system-x86_64)
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# $2 Disk image path (harddrive.img or live ISO)
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# $3 QEMU flags (space-separated)
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# $4 RAM directory (tmpfs mount point)
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set -euo pipefail
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QEMU_BIN="${1:?Usage: qemu-ram.sh <qemu-bin> <disk> <flags> <ramdir>}"
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DISK="${2:?disk image path required}"
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QEMU_FLAGS="${3:?QEMU flags required}"
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RAMDIR="${4:?RAM directory required}"
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if [ ! -f "$DISK" ]; then
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echo "ERROR: disk image not found: $DISK" >&2
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exit 1
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fi
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cleanup() {
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echo "Red Bear: cleaning up RAM-disk..."
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if mountpoint -q "$RAMDIR" 2>/dev/null; then
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umount "$RAMDIR" 2>/dev/null || true
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fi
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rmdir "$RAMDIR" 2>/dev/null || true
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}
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trap cleanup EXIT
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# Size the tmpfs: image size + 512 MiB overhead, minimum 1 GiB
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img_mb=$(du -m "$DISK" | cut -f1)
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tmpfs_mb=$((img_mb + 512))
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[ "$tmpfs_mb" -lt 1024 ] && tmpfs_mb=1024
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echo "Red Bear: preparing RAM-disk boot..."
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mkdir -p "$RAMDIR"
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if ! mountpoint -q "$RAMDIR" 2>/dev/null; then
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mount -t tmpfs -o "size=${tmpfs_mb}m" tmpfs "$RAMDIR"
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fi
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echo "Red Bear: copying $DISK to RAM ($(du -h "$DISK" | cut -f1))..."
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cp "$DISK" "$RAMDIR/disk.img"
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ram_flags="${QEMU_FLAGS//$DISK/$RAMDIR/disk.img}"
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echo "Red Bear: booting from RAM-disk..."
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exec "$QEMU_BIN" $ram_flags
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