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nyx: fix resized emummc backup GPT

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Additionally, fix resized emuMMC GPT partition size
This commit is contained in:
CTCaer
2025-06-22 14:28:07 +03:00
parent f990190765
commit dc744b2ff8
1 changed files with 8 additions and 7 deletions
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15
nyx/nyx_gui/frontend/fe_emummc_tools.c
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@@ -1,7 +1,7 @@
/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018 Rajko Stojadinovic
* Copyright (c) 2018-2024 CTCaer
* Copyright (c) 2018-2025 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -26,11 +26,11 @@
#include "gui.h"
#include "fe_emummc_tools.h"
#include "../config.h"
#include "../hos/hos.h"
#include <libs/fatfs/diskio.h>
#include <libs/fatfs/ff.h>
#define OUT_FILENAME_SZ 128
#define NAND_PATROL_SECTOR 0xC20
#define OUT_FILENAME_SZ 128
#define NUM_SECTORS_PER_ITER 8192 // 4MB Cache.
extern hekate_config h_cfg;
@@ -674,11 +674,11 @@ static int _dump_emummc_raw_part(emmc_tool_gui_t *gui, int active_part, int part
strcpy(user_part.name, "USER");
nx_emmc_bis_init(&user_part, true, sd_sector_off);
s_printf(gui->txt_buf, "Formatting USER... \n");
s_printf(gui->txt_buf, "Formatting USER... ");
lv_label_ins_text(gui->label_log, LV_LABEL_POS_LAST, gui->txt_buf);
manual_system_maintenance(true);
// Format USER partition.
// Format USER partition as FAT32 with 16KB cluster and PRF2SAFE.
u8 *buff = malloc(SZ_4M);
int mkfs_error = f_mkfs("emu:", FM_FAT32 | FM_SFD | FM_PRF2, 16384, buff, SZ_4M);
free(buff);
@@ -727,7 +727,7 @@ static int _dump_emummc_raw_part(emmc_tool_gui_t *gui, int active_part, int part
}
// Set new emuMMC size and USER size.
mbr.partitions[0].size_sct = resized_count;
mbr.partitions[0].size_sct = resized_count - 1; // Exclude MBR sector.
gpt->entries[gpt_entry_idx].lba_end = user_part.lba_end;
// Update Main GPT.
@@ -738,9 +738,10 @@ static int _dump_emummc_raw_part(emmc_tool_gui_t *gui, int active_part, int part
gpt->header.crc32 = crc32_calc(0, (const u8 *)&gpt->header, gpt->header.size);
// Update Backup GPT.
memcpy(&gpt_hdr_backup, &gpt->header, sizeof(gpt_header_t));
gpt_hdr_backup.my_lba = resized_count - 1;
gpt_hdr_backup.alt_lba = 1;
gpt_hdr_backup.part_ent_lba = resized_count - 33;
gpt_hdr_backup.part_ents_crc32 = gpt->header.part_ents_crc32;
gpt_hdr_backup.crc32 = 0; // Set to 0 for calculation.
gpt_hdr_backup.crc32 = crc32_calc(0, (const u8 *)&gpt_hdr_backup, gpt_hdr_backup.size);