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- fat.rs: VOL: Option<Volume> → VOLS: Vec<Volume>; try_mount() returns
a Volume per disk and init() mounts every valid FAT32 volume found.
Volume UID = sanitized uppercase label + 8-hex volume serial
(e.g. RSDOS-5BD1E55F): unique per format, stable across reboots,
human-recognizable, machine-parseable (^[A-Z0-9_]+-[0-9A-F]{8}$);
cloned volumes get a -N suffix. Public ops take a vol index and
select it (select_vol also picks the backing AHCI disk), matching
the ahci::select pattern
- fs.rs: /disk is now a plain directory whose children are one Disk
node per mounted volume, named by UID; DiskInfo carries vol
- LFN fix: entries are stored last-first on disk — both the writer
(head-entry first) and reader (append in disk order) were reversed
and cancelled out for ≤13-char names; multi-entry names (>13 chars)
read back mangled (e.g. 'from-kernel.txt' as 'xt'). Writer now
places seq=1 closest to the SFN and seq=N|0x40 first; reader places
chunks by sequence number and trims at the first NUL. Verified with
a 25-char filename round trip: kernel ls/cat correct, mtools shows
the full LFN, fsck clean on both volumes
- test-disk.sh: test file renamed to disk-test-.txt (>13 chars,
exercises multi-entry LFN); UID discovered from the boot log; QEMU
stdio redirected to a log file + EXIT trap so an orphaned QEMU can
never hang a piped caller (it previously did, 400s)
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- scripts/mkdisk.sh: create the FAT32 disk with mkfs.fat -C (the flag
that actually creates the file — plain mkfs.fat fails on a missing
path), accept M/G/K sizes, seed seed/ files via mtools; --fresh
re-formats, --no-seed skips seeding
- scripts/sendkeys.py: type lines into the guest via the QEMU monitor
(US layout). Punctuation must use QEMU's named keys (minus, slash,
dot, ...) — bare '-', '.', '/' are not valid sendkey names, and '-'
is the modifier separator, so they were silently dropped before
- scripts/test-disk.sh: full automated round trip — build, deploy,
ensure image, boot headless QEMU, drive the shell (ls /disk, mkdir,
echo >, cat, poweroff), then verify with fsck.fat (must be clean)
and mtype (file content must have survived poweroff)
- Makefile: make disk / disk-fresh / inspect / test-disk; run, run-gui
and debug now auto-create a missing DISK_IMG; fix the stale comment
(mkfs.fat without -C)
- scripts/boot.sh: auto-create a missing DISK_IMG via mkdisk.sh
- seed/: motd.txt + lines.txt seeded onto fresh images
- Verified end to end: ./scripts/test-disk.sh --fresh passes
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