Linux inevitably appears to be out of disk space, and when the LVM partition is not previously planned, the default hard disk partition cannot be dynamically expanded, but can also increase the storage space of the system by increasing the way the hard disk mounts1, add a hard disk (the following example is the new/DEV/SDB)2, the second step is the most important, is to set up a partition for the new hard disk (I am more lazy, directly set up a partition)3, view the partition situation, the part
root directorySize: 60g~100g (used to install the program)Type of new partition: Primary partitionLocation of new partition: space start positionFor: EXT4 log file systemmount point: "/"
Size: 4GType of new partition: Logical partitionLocation of new partition: space start positionFor: Swap spaceMount point: Not set
Size: 500MBType of new partition: Logical partitionLocation of new partition: space start positionFor: EXT4 log file systemmount point:/boot
Size: (How much is left, documen
1. View system disk allocation DF2. View all disk devices on the machine cat/proc/partitions3. Create a mount point and create a directory/mnt/ntfs4. Mount Mount-t ntfs/dev/sdb1/mnt/ntfs /dev/sdb1 is hard drive,/mnt/ntfs Local mount point5. Uninstalling UMOUNT/DEV/SDB1Note: Sometimes it will be/dev/sdb2, mount multiple hard drives Yes/DEV/SDCThis article is from the "11576716" blog, please be sure to keep this source http://11586716.blog.51cto.com/11576716/1905273Linux mounted
vg_testPVSize 19.99gib/ notusable1.43MiBAllocatable yes (butfull) PESize 4.00MiBTotalPE 5118FreePE 0AllocatedPE 5118PVUUID fuQdIY-qkJw-fZJB-AauO-Zqpj-91RI-S1GG0X ---Physicalvolume---PVName /dev/sdc1VGName vg_testPVSize 19.99GiB/not usable1.43miballocatable yespenbsp Size4.00mib TotalPE 5118freepe 5116allocatedpe2 PVUUID trlpmq-snm6-u24f-cmha-oivt-xj3w-6fjabpfound that there are still I/O errors appearing, Find the right downtime window, restart the system, and solve the problem (note here to ch
#df-H (view partition and data disk name) # Mkdir/data (This step skips if no data directory is created) # Umount/home (unmount the hard drive's Mounted home directory) # Mount/dev/sdb1/data (Mount to the data directory # vi/etc/fstab (edit Fstab file modified or added so that it can be mounted automatically after reboot)/dev/sdb1 /data ext3 Auto 0 0 Data disk new mount directory edit/etc/ Fstab Inside/home is/data, or created to automatically mount the system w
that you want to back up the contents of the entire
Pass: Used to specify how fsck will check the hard disk. 0 means no check, the mount point is partition/(root partition) must be set to 1, the other mount point cannot be set to 1, if there is a mount that is set to a value greater than 1, then after the root partition is checked, and then the value of the pass is checked from small to large, the same value is checked at the same time. such as:/home and/boot pass set to 2,/devdata pass se
can beExpanding the current partitionFirst, create a new partition:Fdisk/dev/hdaNL #选择逻辑分区, if not, first create an extended partition and then add the logical partition (hard disk: up to four partitions p-p-p-p or P-P-P-E)6 #分区号 (starting from 5),/dev/hda6T 8e #分区类型8e表示LVM分区W #写入分区表Partprobe #重读分区表Mkfs–t Ext3/dev/hda6 #格式化Partx/dev/hda #查看当前硬盘的分区表及使用情况Second, the creation of PV, expansion vg,lvPvcreate/dev/hda6Vgdisplay #查看当前已经存在的VG信息, taking the existence of vg:volgroup00 as an exampleVgexten
1. Permanently mount the hard driveTo find the disk UUID:sudo blkid/dev/sdb1Opens the Fstab file, at the end add:uuid=df21050f-2899-4996-b420-83c54e4fa117 /media/lmy ext4 defaults 0 0The parameters are indicated separately:file system> mount point> To see if the mount succeeds:sudo Mount -A2. Modify the drive letterE2label /dev/sdb1 "newName"Ubuntu permanent mount HDD Modify drive letter
BZ creates a block cloud drive to add to the virtual machine, and then mounts the hard drive as usual on the USB drive:Mount-t ext4/dev/vdb/mnt/xxxxThe results reported the following error:Mount:wrong fs type, bad option, bad Superblock on/dev/vdb,Missing codepage or helper program, or other errorIn some cases useful info are found in Syslog-tryDMESG | Tail or soAfter searching the internet, an elder brother gave a reply, saying it was because there was no formatting, and then I ran to format:Mk
One: Eliminate the shellThere are three styles of ringtones: none, Visible,(1) To eliminate the shell alarm sound, is to press the TAB key is not the sound:Add a line to the/ETC/INPUTRC: (I tried it in RedHat9.0)Set Bell-style NoneSave and restart the system.II: Elimination of VI(1) Interim plansudo rmmod PCSPKRFor Debian/ubuntu users, just open your terminal and run the above command. For Centos/redhat/rhel/fedora Linux users, you need to log in as root and execute Rmmod PCSPKR(2) Plan once and
HDD partitioning scheme when installing UbuntuHttp://www.cnblogs.com/shenliang123/p/3196743.htmlIf you are going to install only one Ubuntu operating system on your hard drive, it is recommended that you adopt a three-partition scheme: "/", "swap", and "/home"./: 10GB-15GB.Swap: Physical memory is less than or equal to 512MB, it is recommended to allocate the actual physical memory capacity of twice times the size of swap, physical memory is greater t
this point, Yasuteru This tutorial, reinstall the GRUB2 from the USB drive.A second problem was encountered after rebooting: Minimal bash ..... After rebooting or stuck in grub, this time shows the Minimal BASH like line editing is supported. for the first word, TAB lists possible command completions. anywhere else TAB lists possible device or file completions. fix: follow this tutorial.Note that the above two tutorials refer to the first aid system that is started with the live CD, which is th
500M SWQP/dev/sda3 20G//dev/sda5 12g/var/dev/sda6 265g/homeMount#mount/dev/sda3/mnt#mkdir/mnt/boot#mount/dev/sda1/mnt/boot#mkdir/mnt/var#mount/dev/sda5/mnt/var#mkdir/mnt/home#mount/dev/sda6/mnt/home5) Vi/etc/pacman.d/mirrorlistserver=http://mirrors.ustc.edu.cn/archlinux/$repo/os/$archOther sources can be used and must be forced to refresh after modification#pacman-syy6) Installation#pacstrap/mnt Base Base-devel7) Generate Fstab#genfstab-u-p/mnt >>/mnt/etc/fstab8) cut to new system#arch-chroot/m
function to make the brief explanation, thus we can understand, to the hard disk's very large part work, by the hard disk controller can complete. And for floppy disk, its controller is much simpler, we need to program to complete various functions, so the floppy disk driver becomes more complex. Here we only discuss the hard drive driver.
2. Implementation of HDD driver in Linux
The driver that we're going to talk about in Drivers/ide/hd.c, in the f
Hard disk cloning, which is a disk clone, is used to copy all the data from one disk to another, and its purpose is embodied in the following areas:
HDD Upgrade: Upgrade your old hard drive or small hard drive to a new large hard drive, and use disk cloning to upgrade your hard drive to avoid reloading the system and reinstalling the application.
Migrate data: Quickly migrate all data from one disk to another disk.
Making a backup disk: All data on
disk (loss of CPU performance time and read time (increase HDD IO addressed thread allocation), which is also the root cause of complaints about hard disk occupancy. The SuperFetch Super Pre-read service is also ineffective for game programs, for individual users and gamers, opening this service will only be intangible loss of CPU performance time, loss of disk IO addressing the threading performance. Therefore, we can not hesitate to close this serv
step to fix at this point-"Select Entry Mode" (Set capacity pattern). In this interface must choose the "(C) ylinders" (stigma) option, enter the input after entering the capacity of the interface. In this interface, the capacity is entered according to the cylinder surface. For the first partition (that is, C-disk), are starting from the 1th cylinder, but now we have to change the front of the "0" to "1", as for the end of the partition is not necessary to modify the number of cylinders, can b
How to see mobile hdd old and new
First look at the calculation to see how many bytes your hard drive shows on your computer, use it with 1024 to see if there is 30G; second, look at the hard disk's label and serial number, there are no traces of sanding; three is to copy a large file to try, listen to the hard disk when reading data when there is no noise. A good hard drive has no noise, and the old hard drive will squeak.
Secondly, we can use the
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