How to solve the problem of starting CHS with USBHDD[Win11 Solutions]
20 2021-08-26 13:00
When booting from a external drive (USB-HDD mode), the capacity parameters of the same external create windows 7 home premium recovery disk usb drive---cylinder, head and number of sectors (CHS for short) are identified differently (proving this create windows 7 password recovery usb on mac can be installed on different machines) The same version of linux, and then insert the external drive, create windows 7 recovery disk on usb drive use hdparm /dev/sda command, you can find that CHS is different on different machines, even if the create windows 7 recovery disk usb flash drive external drive can be booted by GRUB, you can use the geometry (hd0) command in GRUB. Out), so that create windows 7 recovery usb drive from iso the partition table and FAT disk parameter table generated by partitioning and formatting on a create windows 7 recovery usb from another computer machine are expressed in accordance with the CHS of the hard disk recognized by this machine. The create windows 7 recovery usb from windows 10 recognized CHS is different, which will cause confusion.Fortunately, the partition table and the FAT disk create windows 7 recovery usb from without iso parameter table also have a way of expression in terms of relative sector numbers. This expression create windows 7 recovery usb without windows 7 is also recorded in the partition table and the disk parameter table at the same time.So it depends create windows 7 system recovery usb flash drive on what kind of data the software uses to work. If you use CHS, then another machine will not work create windows 8 1 recovery usb from iso normally. If you use LBA to access the disk, it will not be affected --- of course, the premise is create windows 8 1 recovery usb on mac that the BIOS supports U The disk uses LBA mode to access that is to expand INT13H.The MBR code generated create windows 8 1 with update recovery usb by XP formatting the FAT16 file system partition and the various versions of DOS depend on CHS create windows 8 recovery usb from another computer to work, so the boot external hard drive made on one machine according to the usual method may fail create windows 8 recovery usb from command prompt to boot on another machine.After testing, the CHS of the mobile hard disk in each BIOS is the same, create windows 8 recovery usb from windows 10 which is the same as the CHS of the hard disk directly connected to the IDE port, so there is basically create windows 8 recovery usb from windows 7 no difficulty in the USB boot of the mobile hard disk.
At present, what I found is indeed affected create windows 8 recovery usb without windows 8 by this problem, and the programs that affect the startup are:
1. The MBR written by the Chinese create windows 8.1 recovery usb from another computer Disk Manager of Windows XP and SP1 when partitioning
2. dos5, 6, 6.22. MBR written by fdisk of create windows 8.1 recovery usb from windows 10 win95
3. dos5, 6, 6.22, boot written in win95 format
4. All MS DOS IO including windows95 98 create windows 8.1 recovery usb from windows 7 98se.SYS (all need to rely on CHS to identify the FAT file system)
5. MBR and boot generated by USBoot create windows password recovery tool usb flash drive (same as 1)
6. Use bootlace.com grub for dos 0.Grldr in 41.mbr install to MBR
The programs that create windows recovery usb for another computer dell may not be affected by this issue are (not fully tested):
1. MBR written by fdisk of win98 and 9 created windows password recovery tool usb flash drive 8se
2. Boot written in the format of win98 and 98se (the FAT16 partition type must be 0xe to support creating a bootable paragon backup & recovery usb LBA)
3. ntldr and the PE or XP environment started subsequently (of course, otherwise the external creating a bootable usb drive windows 10 recovery hard drive will not be able to be used)
4. MBR written by the install-mbr program under linux
creating a recovery partition on another hard drive 5. GNU GRUB 0.95 and 0.97 and its boot code installed using the grub-install command
6. syslinux3.36 creating a recovery partition on new hard drive and 3.51
7, linux2.Above 4 kernels, basically all programs of the linux system will not use creating a surface recovery usb for surface 3 CHS for the FAT file system
8. grub chs 0.95 0.97 (contained stage1, stage1.5 and stage2 boot code) creating a windows 7 recovery disk on usb
Therefore, the corresponding ideas for solving this problem are as follows:
1. Force the external creating a windows 8 recovery usb from iso drive to start in USB-CDROM, USB-FLOPPY or USB-ZIP mode, so that each BIOS has a standard to follow, creating and using a microsoft recovery usb drive and you will not "talk to yourself". This is also a tool for mass production of external drives. creating recovery usb for another computer windows 10 The basic idea, but this disappoints the combination of SD card + card reader without mass production creating usb diskwarrior recovery disk corrupts flash drive tools, and most of the current large-capacity external drives have no write protection switch or creating usb windows 10 recovery drive taking forever the reading and writing speed is not ideal, and sometimes a high-speed SD card is still needed. + creating windows recovery media in usb memory stick Combination of card reader;
2. It is basically no problem to start with an active hard disk.
3. Use csn you recover data from broken hard drive boot loader that is not affected by wrong CHS parameters, such as GNU GRUB or SYSLINUX, or other data recovery for external hard drive gold coast combinations.
The following describes the methods I have tried to use GNU GRUB, GRUB CHS and GRUB data recovery for lenovo solid state hard drive for DOS:
Method 1: Use stage1 and stage1 of grub Chinese version completely.5. Start stage2
1. data recovery for usb flash drive free download Find a normal running GNU GRUB0.95 or 0.97 machines (Redhat ELAS4 Update0-Update6, ELAS5 Update0-Update1)
2. data recovery from a bad hard drive reviews Put grub_for_dos-0.4.1.stage 1, 1 in chinese/boot/grub in zip.5. 2 files are overwritten to data recovery from a broken external hard drive /usr /share/grub in linux (different versions may have different paths to the grub stage image, data recovery from an unformatted external hard drive /usr/share/grub is most of the cases), please make a backup of the original files.
3. Insert the data recovery from another computer with external hdd external hard drive or mobile hard disk to be booted, and partition, because some BIOSes only support CHS data recovery from dead seagate external hard drive mode for USB-HDD, which limits the boot partition can not exceed 1023*16*63 sectors, so for data recovery from external hard disk free software versatility, The boot partition should not exceed 511M, the type is 0xe, (read Win98se's DOS 7.1 boot code data recovery from external hard disk in bangalore found DOS 7.1 Use 0xe to support LBA mode startup, and its file access may also use this flag, data recovery from external hard disk in chennai although it may not be used for grub, but if the multi-boot includes DOS 7.1 is useful), set the boot data recovery from external hard disk in dubai flag and format it as a fat16 file system.All this is done under linux.(Corrected on December 29)
4. data recovery from external hard disk western digital Mount the boot partition to /mnt
5. grub-install --root-directory=/mnt /dev/sdX, be careful not data recovery from external hard drive free download to choose --force-lba, because grub under linux is not compatible with stageX, the machine will not data recovery from external hard drive free software start
6. Don't bother about /mnt/boot/grub/device.map file, this file is used by the grub-install data recovery from external hard drive twin cities program, it is useless after installation.
7. umount /mnt and restore /usr/share/grub content
It data recovery from hard disk drive free software can be said that it is a pity that the --force-lba option is not enabled, so the next step is to use data recovery from hard drive free software download this device to boot, under the grub command line:
1.root(hd0,0), where is the source of the stage data recovery from hard drive idaho falls id image file specified here
2. setup --force-lba (hd0), to install, so far, the Chinese version of data recovery from hard drive in alpharetta g a grub has been completely installed in the MBR.
This method is the method I initially adopted, but data recovery from hard drive sata won't read now the Chinese version of grub has stopped updating, so I do not recommend this method.
Method 2: data recovery from hard drive that won& 39 Load grub for dos after booting with GNU GRUB
1. Find the latest stable version of linux, such as data recovery from hard drive with bad sectors Redhat ELAS5 Update1, and install its GNU GRUB with the --force-lba option directly into the external data recovery from internal hard drive not detected drive MBR (refer to method one, be careful not to overwrite those files, and don't Forgot to set data recovery from raw usb or hard drive the partition type to 0xe).
2. Put grub_for_dos-0.4.2.chinese/grub in zip.Copy the exe to the root data recovery from seagate external drive in m a directory of the external hard drive.
3. Use kernel /grub after booting with GNU GRUB.exe and boot data recovery from seagate external drive in mac commands to guide grub.exe so you can enjoy the Chinese menu of grub for dos and directly support data recovery from unreadable or corrcupt hard drive ntldr, io.sys started the function.
Fortunately, this method can always use the latest and most data recovery from usb flash drive free download stable GNU GRUB to deal with buggy BIOS, while still enjoying the convenience of the Chinese version data recovery from usb flash drive free online of grub for dos.Whether it is PE or DOS on my machine, the startup speed of this method is quite slow. data recovery hard drive do i need software Even the menu display speed is surprisingly slow. It is not only the startup process, but also very data recovery hard drives laptops and desktops servers slow to run other programs after the startup is successful. I think it is the reason for the Chinese data recovery service very damaged external hard drive version of grub for dos. I tried the Chinese version of grub for dos.0.41, 0.42 and 0.43 are not data recovery software for android phone external memory ideal.
Method 3: Use stage1 and stage1 of GNU GRUB.5 and grub 0.97 Chinese version of stage2 mixed data recovery software for broken external hard drive start
1. Find the latest stable version of linux, such as Redhat ELAS5 Update1, and install its data recovery software for corrupted external hard disk GNU GRUB with the --force-lba option directly into the external drive MBR (refer to method one, be data recovery software for damaged external hard drive careful not to overwrite those files, and don't Forgot to set the partition type to 0xe).
2. Use data recovery software for external hard disk wd grub_for_dos-0.4.1.Replace the stage2 file in chinese/boot/grub in the zip with /boot/grub/stage2 in the data recovery software for external hard drive clicking external hard drive
The advantages of this method are the same as method two, and the startup is data recovery software for external hard drives easyrecovery faster. The disadvantage is that this is not a usual practice after all. It may not be possible after data recovery software for seagate external hard drive the GNU GRUB version is updated, but it seems that GNU GRUB has also stopped updating :-).In the data recovery software for transcend external hard disk current situation, I personally recommend this method.
Other attempts: use syslinux to boot grub data recovery software for usb drive free download for dos0.41, 0.42 and 0.43 grub.The exe was also tested successfully, but the startup and running speed data recovery software free download for usb drive is very slow as in the second method
Practical application test:
Now my own tool disk (150-speed data recovery software from corrupted external hard disk Transcend 2G SD card + Chuanyu 150X SDHC card reader, digression: this card reader is really data recovery software from corrupted external hard drive rubbish except for supporting 150-speed) is made using method three. It is still in the actual environment. data recovery software from crashed external hard disk Did not find any failure to start.Including HP DL380G3, G4, DL580, Dell 3850, 6850, IBM X345, 3 data recovery software from usb external hard drive 46, 3650, etc., and of course my desktop and laptop.
Here is a supplementary explanation: This post data recovery software in dos mode on usb is only an exploration of one of the important factors that affect the USB-HDD startup of the data recovery with insignia usb 3.0 hdd enclosure external drive. This mirroring is only an improvement over popular practices and improves the possibility data recovery without usb debugging samsung galaxy s6 of successful startup of the external drive on different machines. , It can't be said that all the data rescue 5 for windows hard drive recovery problems of USB-HDD booting of external hard drive have been solved.Originally, as a research post, data rescue pc3 hard drive data recovery software I only wanted to provide methods and did not want to provide specific products, but considering ddrescue recover to image on external drive ubuntu various factors, let's put it out for everyone to test.
Because ghost will automatically change the dead laptop good ssd hard drive data recover partition type to 06 when restoring, I used winhex to generate a 1:1 external hard drive image for dead laptop hard drive recovery on different computer research, and the file name is U-1gboot after decompression.img.In order to compress the volume, this dead seagate free agent external hard drive recovery boot disk only has a fake boot menu. As long as this menu appears when booting, it will be decompress recovery image on to a usb drive successful.