similar to: image of OS X how to boot

I am trying to use CentOS 8 host to boot an image (OS X) that I created using dd. First I tried fdisk -l image_file.img - all looks good so I did fdisk image_file.img - this works - but seems in CentOS 8 fdisk there is no longer a toggle bootable flag option. How do I do that ? Thanks, Jerry

Hello, I have a 2GB USB disk on key on /dev/sdb1. I had created on it one partition (FAT16). This partition holds all cylinders of the USB disk. I want to create a bootable Linux USB disk. For this, I tried: syslinux -s /dev/sdb1 An than I ran: fdisk -l /dev/sdb Disk /dev/sdb: 2048 MB, 2048729600 bytes 64 heads, 62 sectors/track, 1008 cylinders Units = cylinders of 3968 * 512 = 2031616

I was following the guide at https://projects.centos.org/trac/livecd/ to do this, and sure enough it claimed the partition wasn't bootable, so fdisk to toggle the flag bootable yet it still didn't boot. Any subtle nuance anyone might know to do this? Thanks! jlc

On Jun 30, 2020, at 1:25 PM, John Pierce <jhn.pierce at gmail.com> wrote: > > On Tue, Jun 30, 2020 at 12:12 PM Jerry Geis <jerry.geis at gmail.com> wrote: > >> I am trying to use CentOS 8 host to boot an image (OS X) that I created >> using dd. >> >> First I tried fdisk -l image_file.img ... > > > fdisk has been deprecated for quite a

Ok, there's been discussion, including, I think, on the wiki web page, that syslinux is not correct. At any rate, after enough experimentation, I have a working install on a USB key. The procedure is: Using fdisk, partition your key: one partition, VFAT (type b, and toggle the bootable flag), about 9M or 10M, and a second partition big enough to hold a DVD. That should be type 83 (Linux

I have been trying to track down information on building HD boot images for ISOLINUX and MEMDISK, and so far, haven't had a whole lot of luck. I've found a number of sources describing the process of setting up ISOLINUX and MEMDISK, and how to configure the boot CD to boot various OS's. I've also read through Bart Lagerweij's BootCD/ModBoot pages, and Mikhail

Hi, I have a custom linux system that runs off a FAT32 usb flash disk. I use syslinux to make it bootable and load the kernel. I'm trying to boot now from a SSD SATA disk (500GB) but it's not working and I can't figure out why. BIOS show that no bootable disk were found. What I already tried (linux fdisk): 1- Creating a new DOS partition table on the SSD, a FAT32 (type b), and

Hi, I'm trying to build a bootable MSDOS disk and put it on a ISO with floppy and hard disk emulation. I want to use commonly available Linux tools like dd, losetup, mkdosfs, memdisk etc. I have done the following: 1. dd if=/dev/zero of=myImage bs=1M count=50 [ Builds a 52MB image ] 2. losetup /dev/loop0 myImage [Links /dev/loop0 to myImage file ] 3. vi /grub/stage1; %!xxd; [ NULL the partion

Hi all, under centos 5 x86_64 - I was able to run fdisk to partition a CF card, make the filesystem, copy data to the filesystem, run grub from an x86_64 system to make the CF card bootable with grub. That all worked fine. Now since switching to centos 6 x86_64 I run the exact same script to program the CF card and when I insert that CF card into the end device I get a Grub error 2. I thought

As I said before, booting is bigger than one bootloader. I am replying to what I think was asked. I might have misunderstood the questions. Whichever the case, this email is less about Syslinux itself. If this is considered too far off-topic in the Syslinux Mailing List, please receive my apologies. > > I still have the factory-set contents of my three USB sticks. A small

Just successfully installed SLES9.3-32bit as file-backended HVM domU. Everything went OK, the distributive partitioned its "harddisk" into root and swap OK, have its grub installed into sda boot sector, but I could not make to boot no one single first time after installation. Every domU boot gives the following screen for a short time and dies: Booting from Hard Disk... Boot from

I installed CentOS 7 on a Shuttle X27D box (dual-core Atom 330), and so far it seems to work fine, but it didn't set up a Grub2 entry for the existing Windows XP installation in the first partition (MBR). Running os-prober generates no output. fdisk shows that the NTFS partition is still present as /dev/sda1, and still has the bootable flag set. I added a menuentry for Windows to the end of

> > In message <BLU0-SMTP1383C5798F6C577E5FFF368BA40 at phx.gbl>, > Ady <ady-sf at hotmail.com> wrote: > > >> With respect to all of the actually important stuff however, I may have > >> missed it all, but I don't recall having read or seen an explanation of > >> what Ady & everybody else finally figured out about all this... > >

Hi, if I inspect an hybrid ISO with tools like fdisk and gdisk, then looks like hybrid ISO has both the MBR and GPT in order to support both the BIOS and UEFI: # gdisk -l /dev/sdb GPT fdisk (gdisk) version 0.8.10 Partition table scan: MBR: MBR only BSD: not present APM: not present GPT: present Found valid MBR and GPT. Which do you want to use? 1 - MBR 2 - GPT 3 - Create blank GPT

On Thu, Sep 29, 2016 at 9:18 PM, John R Pierce <pierce at hogranch.com> wrote: > On 9/29/2016 5:55 PM, Michael B Allen wrote: >> >> It seems optical drives are gone. Do I boot the iso from USB or what's >> the procedure now? > > yup, put iso on USB, go to town. Mmn, that didn't work. I dd'd the latest Fedora Live iso onto a USB drive, put it into a

> > >This particular mainboard might be using different BIOS values than > >others, and there are several other alternative explanations for all > >these issues. Your last few tests suggest that we are on a good track > >now. > > I have just a couple of questions. First, who exactly is Mr. Syslinux? > Who is the primary developer/maintainer? Second, may I

> Hi, > > > The current states of each of those drives seem to suggest that, with > > those particular values, they would not be ideal for booting > > purposes. > > For me as half-educated user all three would look like > "normal" MS-DOS disks. So people buy pitfalls. The filesystem might be OK, but not ideal for a broad compatibility for booting

I realize this is probably the wrong list but since some of the principals this list deals with are similar in nature I figured it could't hurt. What I am looking to do: Provide a solution to either boot from a floppy disk, establish a network connection, give user the ability to run utilities such as fdisk and dd. as well as provide the same solution as a PXE bootable image. My

On Dec 3, 2014, at 12:01, Greg Bailey wrote: > I think you'd need to use the "isohybrid" command that's included in the syslinux package. BING! BING! BING! We have a winner! Thanks for that info, it makes the USB stick bootable. This will make kickstart installations so much easier, especially for systems that don?t have a CD-ROM (we used to have to scrounge for an

Hi all, I've tried and retried to make some USB sticks bootable. I started by making one partition, labeling it FAT16, copying a kernel, an initrd and a very simple syslinux.cfg file. I ran syslinux /dev/sda1 on it. Didn't boot. I tried placing on it the mbr.bin file ('cat mbr.bin > /dev/sda') but still no boot. Then I tried various combinations of these two. Labeling