search for: gpt

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 Your answer: I...

...boot img : 2 UEFI y none 0x0000 0x00 24856 47 El Torito img path : 1 /isolinux/isolinux.bin El Torito img opts : 1 boot-info-table isohybrid-suitable El Torito img path : 2 /isolinux/efiboot.img xorriso : NOTE : No System Area was loaded There is neither MBR nor GPT. So booting from USB-stick or other hard-disk-like device would demand that the UEFI implementation understands ISO 9660 and knows where to look for efiboot.img. If presented as (pseudo-)CD-ROM, /isolinux/efiboot.img should be found and interpreted by UEFI. Here it probably fails with the known in...

...0000 0x00 24856 47 > El Torito img path : 1 /isolinux/isolinux.bin > El Torito img opts : 1 boot-info-table isohybrid-suitable > El Torito img path : 2 /isolinux/efiboot.img > xorriso : NOTE : No System Area was loaded > > There is neither MBR nor GPT. So booting from USB-stick or other > hard-disk-like device would demand that the UEFI implementation > understands ISO 9660 and knows where to look for efiboot.img. I feel ashamed. I forgot to post-process the ISO image you downloaded, sorry. I've now uploaded a new one, post process...

...El Torito img path : 1 /isolinux/isolinux.bin El Torito img opts : 1 boot-info-table isohybrid-suitable El Torito img path : 2 /isolinux/efiboot.img El Torito img path : 3 /isolinux/macboot.img So El Torito is now as expected by isohybrid.c, which added to the ISO image an MBR, a GPT, and an Apple Partition Map. The MBR partitions are (block size is 512): MBR partition table: N Status Type Start Blocks MBR partition : 1 0x80 0x00 0 155648 MBR partition : 2 0x00 0xef 188 2880 MBR partition : 3...

The idea is to boot a disk in an mbr fashion while using the GPT (not filesystem) label to detect the disk. That is useful when you use grub2 & gpt. I was in case where my nodes (100s) have 8 disks each and no guarantee of which disk is "bootable" in the disk. This way I can tell "please boot the disk that have one partition labelled "x...

...fiboot.img . So we only got one APM > partition here. A slight deviation from mjg59's layout. > > It is a lie to give efiboot.img the partition type Apple_HFS. > isohybrid.c does it that way. So the perfect mimic would be > -e isolinux/efiboot.img \ > -isohybrid-gpt-basdat -isohybrid-apm-hfsplus \ > instead of > -e isolinux/efiboot.img \ > -isohybrid-gpt-basdat \ I tried that and got this, which is what was expected I think: xorriso 1.3.8 : RockRidge filesystem manipulator, libburnia project. xorriso : NOTE : Loading ISO image tree from...

...#39;zpool replace'. see: http://www.sun.com/msg/ZFS-8000-4J scrub: none requested config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 raidz2 ONLINE 0 0 0 gpt/disk01 ONLINE 0 0 0 gpt/disk02 ONLINE 0 0 0 gpt/disk03 ONLINE 0 0 0 gpt/disk04 ONLINE 0 0 0 gpt/disk05 ONLINE 0 0 0...

Hi, On 29/07/2014 21:34, Thomas Schmitt wrote: > Nevertheless i advise Didier to simply try with 0xef rather than Mac. At least the ISO will then have MBR, GPT and APM entries for the file macboot.img. I did that, and also tried the xorriso command you posted. I uploaded both ISO images on http://slint.fr/misc/MacBoot resp. renamed: slint64-14.1-Thomas_mkisofs.iso slint64-14.1-Thomas_xorriso.iso I still don't know if one can boot a Mac off an USB...

...o use the .pl for the purpose of > installing on OS X that would suggest it does have the EFI/Mac updates..? Seems to be Macs with BIOS support/emulation. The shown command perl isohybrid.pl tails-i386-0.17.1.iso does not employ special options. There are even UEFI Macs which do not boot if GPT is present. See answer by Colin Watson in: http://askubuntu.com/questions/37999/what-is-different-about-the-mac-iso-image For the others, the most mac-ish ISOs are probably those of Fedora: - isolinux.bin ISOLINUX boot image for BIOS reachable by EL Torito and MBR code - efiboot.img FAT fil...

Previous version had some issues in case of error situations, among those: - backup gpt header was not read if reading of primary failed - alternating nature of lba_cur and lba_alt was ignored This patch fixes this and extends the gpt handling. The current behavior is: - try primary header; if unreadable or checksum fails (or sanity checks fail unless relax flag is set) - try seco...

> On 30.06.2016 19:41, Erwan Velu via Syslinux wrote: > > The exisiting label= option offer to boot on a gpt partition that have > > a particular label. > > The existing guuid= option offer to boot on a disk or partition with a > > particular label. > > > > This new option offer to boot the disk that have a partition which > > have a given label. > > The label is...

Hello all. Here[1] is a branch where chain.c32 can chain-boot a partition on a GPT disk when given the partition index. boot: chain hd1 84 (For example.) - Shao Miller [1] http://git.zytor.com/?p=users/sha0/syslinux.git;a=shortlog;h=refs/heads/ chain_gpt

...6ae79e with the fix. I tested it on my multi-disk system with success. I also changed the name of the function. 2016-07-17 8:21 GMT+02:00 poma <pomidorabelisima at gmail.com>: > On 16.07.2016 10:39, Erwan Velu wrote: > > The idea is to boot a disk in an mbr fashion while using the GPT (not > > filesystem) label to detect the disk. > > > > That is useful when you use grub2 & gpt. I was in case where my nodes > > (100s) have 8 disks each and no guarantee of which disk is "bootable" in > > the disk. > > > > This way I can tell...

The exisiting label= option offer to boot on a gpt partition that have a particular label. The existing guuid= option offer to boot on a disk or partition with a particular label. This new option offer to boot the disk that have a partition which have a given label. The label is so just a way to detect a disk to boot. A typical use is for making...

Hello, I'm trying to install FreeBSD 9.1 amd64 on an IBM x3550 M3 server. Installation went smoothly, RAID controller and network cards were successfully recognised. But, after the installation, the server fails to boot from disk. There were some posts, about two years ago, in this list implying that the problem lies in UEFI but I couldn't find any clear solution. Any suggestions would

Hi list, I'm new with UEFI and GPT. For several years I've used MBR partition table. I've installed my system on software raid1 (mdadm) using md0(sda1,sdb1) for swap, md1(sda2, sdb2) for /, md2 (sda3,sdb3) for /home. From several how-to concerning raid1 installation, I must put each partition on a different md devices....

...' libisofs: NOTE : Aligned image size to cylinder size by 80 blocks xorriso : UPDATE : 40.00% done ISO image produced: 20480 sectors Written to medium : 20480 sectors at LBA 0 Writing to 'stdio:../image.iso' completed successfully. * output from gdisk -l image.iso showing both MBR and GPT layouts # gdisk -l ../image.iso GPT fdisk (gdisk) version 0.8.6 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 Your answer: 2 Using GPT and creating fresh prote...

I'm going to get the hang of this mailing list eventually. Apologies for any duplicate emails.. >Ian Bannerman: >> While I did know the .exe variant was not official / untrusted, >Is there a special reason for this ? (Except the known bugs which affect Linux binaries, too.) Not really. I had never found a convincing source for it and had seen previous list entries like this

I posted this on the bugzilla page but I figured that on the mailing list it would get more attention. Please see http://bugzilla.syslinux.org/show_bug.cgi?id=49 for a description of my current issue. -- Thank you, Fernando Reyes GPG BDD75DD7 Mission Accomplish, Inc. http://missionaccomplish.com Email:design at missionaccomplish.com Tel: 7187100008 Cell: 3479275477

...It's potentially useful for other modules (e.g. if someone wanted to code partition dumper or editor). 2) Iterator updates This part is actually pretty large: 2a) sanity checks - potential add/mul overflows are detected - partition related checks handled by notsane_{primary,logical,extended,gpt}() family of functions. They can be easily extended in the future. - additional checks in main pi_{gpt,dos}_next() functions and subfunctions 2b) EBR+MBR iterator merge They function now simply as 'dos' iterator (to keep naming consistent with disklib). Code is split into smaller functi...