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[Translate] How does the go build command work?

architectures. The back end is identified with a specific letter, which is also a tradition of Plan 9. Commands include: 5g, 6g, and 8g are the corresponding compilers for the. Go file for arm, AMD64, and 386.5c, 6c, and 8c are the compilers for. c files that correspond to arm, AMD64, and 386;5a, 6a and 8a are the compilers for. s files for arm, AMD64, and 386;5l, 6l, and 8l are the linker for the files generated by the above commands, as well as for

Lvm tossing notes

the super user First data block = 0 Maximum filesystem blocks = 2684354560 80 block groups 32768 blocks per group, 32768 fragments per group 8 192 inodes per group Superblock backups stored on blocks: 32768,983 04, 163840,229 376, 294912,819 200, 884736,160 5632 Writing inode tables: done Creating journal (32768 blocks ): done Writing superblocks and filesystem accounting information: done This filesystem will be automatically checked every 37 mounts or 180 days, whichever comes first. use tune

LVM basic applications and LVM expansion and reduction

the LV:LVCREATE-L#[MMGGTT]-N NAME volumegroup Specifies the amount of space to be larger than the space of the VG, and the size of the space you specify does not match exactly, depending on whether the size you specify can be the space size divisible byRemove LVLvremove/dev/vg_name/lv_nameTo extend a logical Volume:#lvextend-L [+]#[MMGGTT]/dev/vg_name/lv_name#resize2fs/dev/vg_name/lv_nameTo shrink a logical Volume:#umount/dev/vg_name/lv_name#e2fsck-F/dev/vg_name/lv_name#resize2fs/dev/vg_name/lv

How can the three major carriers innovate their networks when they face the "4G 4G" challenge?

, said that although 4G networks are becoming increasingly mature and 5G standards are also widely discussed in the industry, there are still many problems to be resolved and discussed, for example, how can we cope with the challenges of surge in data services and diversified needs based on limited bandwidth resources, how can LTEA and VoLTE be commercially available, and how can we deploy the LTE network in the construction for the development of

Implementation of RAID and LVM in Linux

directory when it is started. 1. create three disks with 5 GB size: sda {5, 6, 7}. the file format is fd. fdisk/dev/sda n + 5G t fd w Partprobe after the disk is created, view the disk effect, such as 2. create RAID5, and set the chunk 32 K, the result is as follows: 3. after the synchronization is complete, the result is as follows: 4. format md0 and mount it to the/backup directory, and set mke2fs-j/dev/md0 monut/dev/md0/backup to boot: Vim/etc/fst

. Htaccess does not work! The recipient has a score! What should I do?

. Htaccess does not work! The recipient has a score !. The htaccess content is as follows: RewriteEngineOnRewriteBase/RewriteRule ^ cms/5 gameweb/statics/css/5g/css/(. * \. css)/combine. php? Type = css amp; files. htaccess does not work! The recipient has a score! The. htaccess content is as follows: RewriteEngine On RewriteBase/ RewriteRule ^ cms/5 gameweb/statics/css/5g/css/(. * \. css)/combine. php? Ty

LVM tossing notes

filesystem accounting information: donethis filesystem will be automatically checked every 37 mounts or180 days, whichever comes first. use tune2fs-C or-I to override. [root @ localhost ~] # Mount/dev/testvg/testlv1/mnt [root @ localhost ~] # Mount/dev/sda2 on/type ext4 (RW) proc on/proc type proc (RW) sysfs on/sys type sysfs (RW) devpts on/dev/PTS type devpts (RW, gid = 5, mode = 620) tmpfs on/dev/SHM type tmpfs (RW, rootcontext = "system_u: object_r: tmpfs_t: s0 ")/dev/sda1 on/boot type ext4

Implementation of RAID and LVM in Linux

/dev/md0-a yes-l 0-n 2/dev/sda {6, 7} Mke2fs-j/dev/md0 Mount/dev/mdo/mnt Management mode: -f | -- fail: The simulated disk is damaged. Fg: mdadm/dev/md0 -- fail/dev/sda7-a | -- add: New Hard Disk Fg: mdadm/dev/md0-a/dev/sda8-r | -- remove: remove corrupted hardware Disk monitoring mode:-F growth mode:-G Assembly mode:-A Fg: mdadm-A/dev/md0/dev/sda8/dev/sda9 3. view the RAID information of the current system:-D: displays RAID information-detail: display Information 4. stop RAID array-S | -- stop

Linux Foundation Small case----use of LVM

1, create a 5G partition on the SDB, and format it as ext3, and boot automatically mount to/data2, create a 2G partition on SDB, as swap partition, and power on automatically use 3, create a logical volume, named lv222, divide 5G Space from volume group vg111, vg111 Volume group contains two physical volumes,/DEV/SDC1/DEV/SDD14, formatted lv222 ext3, boot automatically mounted to/LVM 5, add capacity to lv1

SDN's Life and Future: 10 Trends in 10

attention core. 5. Sd-wan: Software-defined DCI It teams in large and medium-sized enterprises face at least 3 challenges: one is to improve the quality of the multi-datacenter internetwork to ensure backup disaster or cross-global application performance, and second, to effectively manage highly complex branch deployments, and to migrate the static and private features of traditional WANs into dynamic and public cloud environments. Sd-wan network Services from the lower-level WAN hardware deco

[Linux] Wireless Settings Considerations for OpenWrt

-40 ' Option Htmode ' ht40+ ' Option Country ' CN ' Option Noscan ' 1 ' Option Txpower ' 17 ' Option Channel ' 149 ' Config Wifi-iface Option Device ' Radio1 ' Option Network ' LAN ' Option Mode ' AP ' Option SSID ' openwrt_5g ' Option encryption ' psk-mixed ' Option key ' 11111111 ' The following is a few configuration items, other configuration items are either not commonly used, or at a glance.1 Channel: ChannelsThe channel value must be correct, to know that the n

What is the difference between dual-frequency WiFi and single frequency WiFi?

Dual-frequency WiFi refers to the simultaneous transmission of 2.4g/5g band of dual-frequency terminal equipment. Double frequency. Maybe the users are still foggy about WiFi dual-band WiFi, and we're going to take you today to see what a dual-band WiFi is. Let's start with a history of WiFi, the 1999 802.11a defines a physical layer with a data transfer rate of up to 54mbit/s on the 5GHz ISM band, 802.11B defines one on the 2.4GHz ISM ba

Mercury mercury[New Interface] How do I set (Modify) a wireless name or password?

modify on the homepage After logging into the Router management interface, click on the wireless settings below the left, where you can set the name and password of the host network, as shown below: Note : If you are a dual-band wireless router, you can set the wireless name and password for the 2.4G and 5G signals respectively. Method Two, viewing and modifying in wireless settings In the router interface click Advanc

"My Linux, I am the boss!" "The principle and implementation of logical volume management LVM

directly and needs to be uninstalled first#lvremove/DEV/MYVG/TESTLVExplanation: The logical volume can be removed successfullyExtending logical Volumes#lvcreat-L 2g-n TESTLV MYVGExplanation: Because of the previous deletion, re-use volume group MYVG to create a 2G logical volume TESTLV#mke2fs-j/DEV/MYVG/TESTLVExplanation: TESTLV The re-created logical volume to the ext3 file system#mkdir/usersExplanation: Create a user's directory to mount the logical volume's file system#vim/etc/fstabExplanati

The step of online expansion of LVM in Linux

partitions are mapped to physical partitions, so if the size of the physical partition is 4MB, the logical partition size will also be 4MB. The size of the logical volume depends on the number of logical partitions allocated.Tools/Materials A server or notebook with a Linux operating system installed The virtual machine environment can also Method/Step To build LVM, you first need to prepare the disk or partition for LVM. If you use a disk partition as a physical volume, y

Use a mobile hard drive to quickly install win7 (with BIOS settings)

Use a mobile hard drive to quickly install win7 (with BIOS settings)Create a 5g partition on the mobile hard drive, which is used to guide the installation of win7, which is very fast and convenient.PreparationsOne mobile hard diskA win7 ISO Image FileDecompression tool (rar or zip)Current System (windows)Step 2: Create a partitionGo to the current system, insert a mobile hard disk, right-click "computer", select "manage", double-click "Storage", and

Solution to dual-system dual hard drive installation in Windows 7

I installed the dual-System "fedora 18" on the win7 hard drive according to the network method and found many problems. I have solved the problem based on my practical experience and provided my own solutions. You are welcome to make a decision. First of all, read the content: I only use Linux environment without easybcd. Solution: Do not use easybcd to complete the hard disk installation of Fedora 18/centos 6 First, review the method on the Network: (the content is similar) Software Used in th

Disk Io Performance Analysis

= 0NorandommapRamp_time = 6Iodepth = 16Iodepth_batch = 8Iodepth_low = 8Iodepth_batch_complete = 8Exitall Size = 5g[Test]Filename =/data/test. DataNumjobs = 1 The parameters and options used are as follows. For more information, see man FIO: BS = 16 K the size of the block file for a single Io is 16 kioengine I/O engine uses the asynchronous libaio method userspace_reap libaio special options. By default, FIO uses io_getevents to call the time for the

IPhone development environment installed in Non-Apple laptops (on)

downloaded MAC system to the 5g system (that is, the edisk). Here I choose iatkos_l2.iso, which is based on Mac OS 10.6.3.LeopardVersion. It is best not to select the official Apple system. You should select a version that has been cracked by others and can be installed on x86 machines! Then we will useHard Disk installation AssistantThis small software writes iatkos_l2.iso to the edisk (the hard disk installation assistant can be found in the link a

LVM (Logical Volume Manager) Logical Volume management

01 Creating a Partition02 Identify this partition as PV (physical volume)03 Adding a physical volume to a VG (volume group)04 Dividing the LV (logical volume) from the volume group05 File system for LV06 Mounting Use==========Create a whole process of LV#fdisk/dev/sdb--->/DEV/SDB3----> 5G//Partitioning a 5G partition#pvcreate/DEV/SDB5//convert SDB5 to PV#pvs or #pvdisplay//view PV information#vgcreate VG0/D

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