failed to open stream: open /sys/firmware/dmi/tables/smbios_entry_point: permission denied
这个该怎么解决，已经加过777的权限了

我的命令行输出：
On Board Device 1 Information
Type: Video
Status: Disabled
Description: VMware SVGA II
On Board Device 2 Information
Type: Sound
Status: Disabled
Description: ES1371
使用dmi.Onboard()获取失败：
获取出来是这个：SMBIOS 2.7.0 - table: address: 0xe0010, size: 28932

dmi.OEM undefined (type *dmidecode.Decoder has no field or method OEM)
大佬帮看看。

命令：dmidecode -t 4

dmidecode 3.2

Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0004, DMI type 4, 42 bytes
Processor Information
Socket Designation: CPU #000
Type: Central Processor
Family: Unknown
Manufacturer: GenuineIntel
ID: EA 06 09 00 FF FB 8B 1F
Version: Intel(R) Core(TM) i5-8500 CPU @ 3.00GHz
Voltage: 3.3 V
External Clock: Unknown
Max Speed: 30000 MHz
Current Speed: 3000 MHz
Status: Populated, Enabled
Upgrade: ZIF Socket
L1 Cache Handle: 0x0094
L2 Cache Handle: 0x0114
L3 Cache Handle: Not Provided
Serial Number: Not Specified
Asset Tag: Not Specified
Part Number: Not Specified
Core Count: 2
Core Enabled: 2
Characteristics:
64-bit capable
Multi-Core
Execute Protection
这是我命令行返回的CPU信息，我获取到的ID是0，我想获取的是这个 ID: EA 06 09 00 FF FB 8B 1F

cmd/main.go

	case "processor":
		infos, err := decoder.Processor()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(infos[i])
		}
		pcinfos, err := decoder.ProcessorCache()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(pcinfos[i])
		}

should be

	case "processor":
		infos, err := decoder.Processor()
		checkDecodeErr(t, err)
		for i := range infos {
			fmt.Println(infos[i])
		}
		pcinfos, err := decoder.ProcessorCache()
		checkDecodeErr(t, err)
		for i := range pcinfos {
			fmt.Println(pcinfos[i])
		}

dmi, _ := dmidecode.New()
infos, _ :=dmi.System()

infos为什么不返回一个对象，而返回一个数组呢？
想读取UUID或其他特定一个值的时候很不方便

调用库的时候，老是输出版本信息，可以默认去掉吗？

设备信息

谢谢

As of version 2.6 of the SMBIOS specification, the first 3 fields of the UUID are supposed to be encoded on little-endian.

the version should be SMBIOS version, not system-version.

ARM64，UBUNTU
failed to open stream: read /dev/mem: bad address

应该是dmi, err := dmidecode.New()就报错了

ls -l /dev/mem
crw-r----- 1 root kmem 1, 1 Feb 12 2016 /dev/mem

dmidecode 报

dmidecode 3.0

No SMBIOS nor DMI entry point found, sorry.

func (s *Structure) GetString(offset int) string {
if offset > s.FormattedCount()-1 {
return "Unknown"
}

index := s.Formatted[offset]

if index == 0 {
	return "Unknown"
}

return s.Strings[index-1]  // 这里是否需要判断下是否越界，否则异常下会直接panic？

}

like

sudo dmidecode -t 11

output like:

# dmidecode 3.2
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.

Handle 0x0B00, DMI type 11, 5 bytes
OEM Strings
	String 1: Dell System
	String 2: 5[0000]
	String 3: 14[1]
	String 4: 26[0]
	String 5: 17[A4B60183CF8FDCD8]
	String 6: 17[A6BDC5E1EE433F13]
	String 7: 18[0]
	String 8: 19[1]
	String 9: 19[1]

env:
Red Hat Enterprise Linux Server release 6.10 (Santiago)
Linux version 2.6.32-754.el6.x86_64 ([email protected]) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-23) (GCC) ) #1 SMP Thu May 24 18:18:25 EDT 2018

error:
failed to open stream: no SMBIOS entry point found in memorypanic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x38 pc=0x9c5449]

goroutine 1 [running]:
github.com/yumaojun03/dmidecode.(*Decoder).System(0x0, 0xc00000e018, 0xc000575d70, 0x1, 0x1, 0x3c)
C:/Users/ss/go/pkg/mod/github.com/yumaojun03/[email protected]/decoder.go:104 +0x29

Is it not supported by the system or for other reasons?