Eu tenho 2 (em breve mais) sistemas operacionais independentes. No momento, ele é apenas o CentOS 6.6 e 7, mas adicionará vários outros.
Eu posso inicializar o CentOS 7 de forma limpa, mas o 6.6 não inicializa. O erro é:
error: no such device (long UUID here)
error: unknown filesystem
FYI, o disco é GPT, particionado com gdisk / parted. Há um /boot para 7 em /dev/sda2 e outro para 6,6 em /dev/sda9 . Ambos têm o diretório /boot/grub2/ completo (não que isso deva importar) e grub2.cfg idêntico.
O 7 um trabalho ( sda2 ) está formatado xfs . O malsucedido 6.6 um ( sda9 ) falha com ext2 , ext4 ou xfs .
Entrando na linha de comando do grub, tento listar as partições. Ele vê todas as partições, mas não pode ver um sistema de arquivos em nada, exceto sda2 :
grub> ls (hd0,2)
Partition hd0,2: Filesystem type xfs, UUID 97df.... - Partition start at 2048 KiB - Total size 512000 KiB
grub> ls (hd0,9)
Partition hd0,9: No known filesystem detected - Partition start at 279393720 KiB - Total size 495616 KiB
Inicializando em 7, posso montar sda9 diretamente, tudo parece bom.
Tabela de partições do parted:
(parted) p
Model: DELL PERC H730 Mini (scsi)
Disk /dev/sda: 8397GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:
Number Start End Size File system Name Flags
1 1049kB 2097kB 1049kB bios_grub
2 2097kB 526MB 524MB xfs
3 526MB 537GB 537GB lvm
4 537GB 1074GB 537GB lvm
5 1074GB 1504GB 430GB lvm
6 1504GB 1933GB 430GB lvm
7 1933GB 2324GB 391GB lvm
8 2324GB 2861GB 537GB Linux LVM lvm
9 2861GB 2861GB 508MB xfs centos_66_boot
10 2861GB 2961GB 99.5GB centos_66_root lvm
11 2961GB 2971GB 9999MB smart_data1
12 2971GB 3071GB 100GB smart_data2
(nada nas partições smart_ *, para ser usado em aplicativos alternativos).
Se você preferir do gdisk:
Disk /dev/sda: 16401301504 sectors, 7.6 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 5B41D43E-6D17-4E34-9068-E66BD3753D70
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 16401301470
Partitions will be aligned on 2048-sector boundaries
Total free space is 10403256253 sectors (4.8 TiB)
Number Start (sector) End (sector) Size Code Name
1 2048 4095 1024.0 KiB EF02
2 4096 1028095 500.0 MiB 0700
3 1028096 1049612287 500.0 GiB 8E00
4 1049612288 2098196479 500.0 GiB 8E00
5 2098196480 2937065471 400.0 GiB 8E00
6 2937065472 3775934463 400.0 GiB 8E00
7 3775934464 4539299839 364.0 GiB 8E00
8 4539299840 5587875839 500.0 GiB 8E00 Linux LVM
9 5587875840 5588867071 484.0 MiB 0700 centos_66_boot
10 5588867072 5783203839 92.7 GiB 8E00 centos_66_root
11 5783203840 5802733567 9.3 GiB 0700 smart_boot
12 5802733568 5998047231 93.1 GiB BF00 smart_data
Partes relevantes de /boot/grub2/grub.cfg :
menuentry 'CentOS Linux 7 (Core), with Linux 3.10.0-229.14.1.el7.x86_64' --class rhel fedora --class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option 'gnulinux-3.10.0-229.14.1.el7.x86_64-advanced-d171cb6d-c39b-45d5-b09a-33f641c3f397' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_gpt
insmod xfs
set root='hd0,gpt2'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 --hint='hd0,gpt2' 97dfd142-3423-459a-a39e-9a6099b3e5fc
else
search --no-floppy --fs-uuid --set=root 97dfd142-3423-459a-a39e-9a6099b3e5fc
fi
linux16 /vmlinuz-3.10.0-229.14.1.el7.x86_64 root=/dev/mapper/root-lv_root ro rd.lvm.lv=root/lv_root rd.lvm.lv=centos/swap crashkernel=auto rhgb quiet
initrd16 /initramfs-3.10.0-229.14.1.el7.x86_64.img
}
menuentry 'CentOS release 6.6 (Final) (on /dev/mapper/vg_centos6-lv_centos6_root)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-b5002a5f-a521-423c-bae5-82e0aefe5e17' {
insmod part_gpt
insmod xfs
set root='hd0,gpt9'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt9 --hint-efi=hd0,gpt9 --hint-baremetal=ahci0,gpt9 --hint='hd0,gpt9' 5715cdc8-9d49-49c3-814f-eb887d69b7d4
else
search --no-floppy --fs-uuid --set=root 5715cdc8-9d49-49c3-814f-eb887d69b7d4
fi
linux /vmlinuz-2.6.32-504.el6.x86_64 root=/dev/dm-5
initrd /initramfs-2.6.32-504.el6.x86_64.img
}
Eu também tentei códigos de partição alternativos para sda9 , nada funciona. O que estou perdendo?
Por que vale a pena, versão grub2:
# rpm -qi grub2
Name : grub2
Epoch : 1
Version : 2.02
Release : 0.17.0.1.el7.centos.4
Architecture: x86_64
Install Date: Mon 26 Oct 2015 05:48:42 PM IST
Group : System Environment/Base
Size : 7394739
License : GPLv3+
Signature : RSA/SHA256, Wed 23 Sep 2015 07:13:19 PM IDT, Key ID 24c6a8a7f4a80eb5
Source RPM : grub2-2.02-0.17.0.1.el7.centos.4.src.rpm
Build Date : Wed 23 Sep 2015 05:51:07 PM IDT
Build Host : kbuilder.dev.centos.org
Relocations : (not relocatable)
URL : http://www.gnu.org/software/grub/
Summary : Bootloader with support for Linux, Multiboot and more
A pedido do comentador, saída:
# file -s /dev/sda9
/dev/sda9: SGI XFS filesystem data (blksz 4096, inosz 256, v2 dirs)
# file -s /dev/sda2
/dev/sda2: SGI XFS filesystem data (blksz 4096, inosz 256, v2 dirs)
E grub2-probe parece satisfeito com os dois:
# grub2-probe --device /dev/sda2
xfs
# grub2-probe --device /dev/sda9
xfs
grub2-fstest também parece retornar corretamente para essas partições:
# grub2-fstest -vvv -r /dev/sda2 /dev/sda ls -- -l
Device proc: Filesystem type procfs - Sector size 512B - Total size 0KiB
Device loop0: No known filesystem detected - Sector size 512B - Total size 8200650752KiB
Partition loop0,gpt12: No known filesystem detected - Partition start at 2901366784KiB - Total size 97656832KiB
Partition loop0,gpt11: No known filesystem detected - Partition start at 2891601920KiB - Total size 9764864KiB
Partition loop0,gpt10: No known filesystem detected - Partition start at 2794433536KiB - Total size 97168384KiB
Partition loop0,gpt9: Filesystem type xfs, UUID b5c911d7-4f55-46da-80fd-d956bad72234 - Partition start at 2793937920KiB - Total size 495616KiB
Partition loop0,gpt8: No known filesystem detected - Partition start at 2269649920KiB - Total size 524288000KiB
Partition loop0,gpt7: No known filesystem detected - Partition start at 1887967232KiB - Total size 381682688KiB
Partition loop0,gpt6: No known filesystem detected - Partition start at 1468532736KiB - Total size 419434496KiB
Partition loop0,gpt5: No known filesystem detected - Partition start at 1049098240KiB - Total size 419434496KiB
Partition loop0,gpt4: No known filesystem detected - Partition start at 524806144KiB - Total size 524292096KiB
Partition loop0,gpt3: No known filesystem detected - Partition start at 514048KiB - Total size 524292096KiB
Partition loop0,gpt2: Filesystem type xfs, UUID 97dfd142-3423-459a-a39e-9a6099b3e5fc - Partition start at 2048KiB - Total size 512000KiB
Partition loop0,gpt1: No known filesystem detected - Partition start at 1024KiB - Total size 1024KiB
Ajuda?