这里貌似有网件的程序猿，R7000升级1.0.5.48固件失败求救
原固件是1.0.4.30第一次是通过管理界面的升级提示自动升级，升级后路由陷入了不断重启的状态。
后下载固件，通过线刷，tftp刷回1.0.4.30，进入管理界面恢复出厂设置，再此尝试升级，问题如故。
tftp直刷1.0.5.48，问题如故。
tftp刷1.0.2.200，在1.0.2.200管理界面升级1.0.4.30正常，升级1.0.5.48失败
我下载的1.0.5.48固件SHA1:
8089534b6379d0f363e40c392a4b6819dd48e9beR7000-V1.0.5.48_1.1.79.chk无法正常启动时相关的日志：
[ 3.280000] Northstar brcmnand NAND Flash Controller driver, Version 0.1 (c) Broadcom Inc. 2012
[ 3.290000] NAND device: Manufacturer ID: 0xc2, Chip ID: 0xf1 (Unknown NAND 128MiB 3,3V 8-bit)
[ 3.300000] Spare area=64 eccbytes 56, ecc bytes located at:
[ 3.310000]2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 19 20 21 22 23 24 25 26 27 28 29 30 31 34 35 36 37 38 39 40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57 58 59 60 61 62 63
[ 3.320000] Available 7 bytes at (off,len):
[ 3.330000] (1,1) (16,2) (32,2) (48,2) (0,0) (0,0) (0,0) (0,0)
[ 3.330000] Scanning device for bad blocks
[ 3.640000] Options: NO_AUTOINCR,NO_READRDY,
[ 3.650000] Creating 2 MTD partitions on "brcmnand":
[ 3.650000] 0x000002600000-0x000007b00000 : "brcmnand"
[ 3.660000] 0x000007b00000-0x000008000000 : "OpenVPN"
[ 3.670000] SQUASHFS error: Xattrs in filesystem, these will be ignored
[ 3.680000] SQUASHFS error: Unable to read inode 0x3ba015b1
[ 3.680000] VFS: Cannot open root device "mtdblock3" or unknown-block(31,3)
[ 3.690000] Please append a correct "root=" boot option; here are the available partitions:
[ 3.700000] 1f00 512 mtdblock0 (driver?)
[ 3.700000] 1f01 1536 mtdblock1 (driver?)
[ 3.710000] 1f02 32768 mtdblock2 (driver?)
[ 3.710000] 1f03 30607 mtdblock3 (driver?)
[ 3.720000] 1f04 256 mtdblock4 (driver?)
[ 3.720000] 1f05 256 mtdblock5 (driver?)
[ 3.730000] 1f06 256 mtdblock6 (driver?)
[ 3.730000] 1f07 512 mtdblock7 (driver?)
[ 3.740000] 1f08 512 mtdblock8 (driver?)
[ 3.740000] 1f09 256 mtdblock9 (driver?)
[ 3.750000] 1f0a 256 mtdblock10 (driver?)
[ 3.750000] 1f0b 256 mtdblock11 (driver?)
[ 3.760000] 1f0c 256 mtdblock12 (driver?)
[ 3.760000] 1f0d 256 mtdblock13 (driver?)
[ 3.770000] 1f0e 256 mtdblock14 (driver?)
[ 3.770000] 1f0f 256 mtdblock15 (driver?)
[ 3.780000] 1f10 256 mtdblock16 (driver?)
[ 3.780000] 1f11 87040 mtdblock17 (driver?)
[ 3.790000] 1f12 5120 mtdblock18 (driver?)
[ 3.790000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(31,3)
[ 3.800000] [<c0047250>] (unwind_backtrace+0x0/0xe4) from [<c03d499c>] (panic+0x68/0x194)
[ 3.810000] [<c03d499c>] (panic+0x68/0x194) from [<c0009404>] (mount_block_root+0x238/0x288)
[ 3.820000] [<c0009404>] (mount_block_root+0x238/0x288) from [<c0009700>] (prepare_namespace+0x160/0x1c0)
[ 3.830000] [<c0009700>] (prepare_namespace+0x160/0x1c0) from [<c0009078>] (kernel_init+0x1c8/0x218)
[ 3.840000] [<c0009078>] (kernel_init+0x1c8/0x218) from [<c0041b58>] (kernel_thread_exit+0x0/0x8)
[ 3.850000] CPU0: stopping
[ 3.850000] [<c0047250>] (unwind_backtrace+0x0/0xe4) from [<c00402f0>] (do_IPI+0xfc/0x180)
[ 3.850000] [<c00402f0>] (do_IPI+0xfc/0x180) from [<c04bf8a8>] (__irq_svc+0x48/0xe8)
[ 3.850000] Exception stack(0xc0503f78 to 0xc0503fc0)
[ 3.850000] 3f60: c05129a4 00000000
[ 3.850000] 3f80: c0503fc0 00000000 c0502000 c050ebc8 c05300a8 c050ebc0 80000000 413fc090
[ 3.850000] 3fa0: 0000001f 00000000 c0563cd8 c0503fc0 c0**0 c0**4 60000013 ffffffff
[ 3.850000] [<c04bf8a8>] (__irq_svc+0x48/0xe8) from [<c0**4>] (default_idle+0x24/0x28)
[ 3.850000] [<c0**4>] (default_idle+0x24/0x28) from [<c0041d1c>] (cpu_idle+0x40/0x94)
[ 3.850000] [<c0041d1c>] (cpu_idle+0x40/0x94) from [<c0008e4c>] (start_kernel+0x3b0/0x414)
[ 3.850000] [<c0008e4c>] (start_kernel+0x3b0/0x414) from [<80008138>] (0x80008138)
[ 3.850000] NVRAM LOG 16384 4475 20859
[ 3.850000] Rebooting in 3 seconds..
目前只能刷回1.0.4.30使用了，1.0.5.48死活升不了，新版本看上去提升还是很大的，残念...
求解决方法
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