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/dev/loop0 - Сам физический диск - например /dev/sdb
/dev/loop1 - Логический раздел, будет виден после перезагрузки, скорее всего /dev/sdb1
Создание GPT раздела:
goletsa-minipc:/mnt/disk3/alex/WD# losetup /dev/loop-0 gpt_test.disk
goletsa-minipc:/mnt/disk3/alex/WD# gdisk /dev/loop-0
GPT fdisk (gdisk) version 0.5.1
Partition table scan:
MBR: not present
BSD: not present
APM: not present
GPT: not present
Creating new GPT entries.
Command (? for help): ?
bback up GPT data to a file
cchange a partition's name
ddelete a partition
ishow detailed information on a partition
llist known partition types
nadd a new partition
ocreate a new empty GUID partition table (GPT)
pprint the partition table
qquit without saving changes
rrecovery and transformation options (experts only)
ssort partitions
tchange a partition's type code
vverify disk
wwrite table to disk and exit
xextra functionality (experts only)
?print this menu
Command (? for help): o]
This option deletes all partitions and creates a new protective MBR.
Proceed? (Y/N): y
Command (? for help): n
Partition number (1-128, default 1):
First sector (34-2097118, default = 34) or {+-}size{KMGT}:
Last sector (34-2097118, default = 2097118) or {+-}size{KMGT}:
Current type is 'Unused entry'
Hex code (L to show codes, 0 to enter raw code): L
0700 Linux/Windows data 0c01 Microsoft Reserved 2700 Windows RE
4200 Windows LDM data 4201 Windows LDM metadat 8200 Linux swap
8301 Linux Reserved 8e00 Linux LVM a500 FreeBSD disklabel
a501 FreeBSD boot a502 FreeBSD swap a503 FreeBSD UFS
a504 FreeBSD ZFS a505 FreeBSD Vinum/RAID a800 Apple UFS
a901 NetBSD swap a902 NetBSD FFS a903 NetBSD LFS
a903 NetBSD RAID a904 NetBSD concatenated a905 NetBSD encrypted
ab00 Apple boot af00 Apple HFS/HFS+ af01 Apple RAID
af02 Apple RAID offline af03 Apple label af04 AppleTV recovery
be00 Solaris boot bf00 Solaris root bf01 Solaris /usr & Mac
bf02 Solaris swap bf03 Solaris backup bf04 Solaris /var
bf05 Solaris /home bf05 Solaris EFI_ALTSCTR bf06 Solaris Reserved 1
bf07 Solaris Reserved 2 bf08 Solaris Reserved 3 bf09 Solaris Reserved 4
bf0a Solaris Reserved 5 c001 HP-UX data c002 HP-UX service
ef00 EFI System ef01 MBR partition schem ef02 BIOS boot partition
fd00 Linux RAID
Hex code (L to show codes, 0 to enter raw code): 0700
Changed system type of partition to 'Linux/Windows data'
Command (? for help): p
Disk /dev/loop0: 2097152 sectors, 1024.0 MiB
Disk identifier (GUID): 2E4FA1FF-15A0-0007-54EF-19AE18B8DA12
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 2097118
Total free space is 0 sectors (0 bytes)
Number Start (sector) End (sector) Size Code Name
1 34 2097118 1024.0 MiB 0700 Linux/Windows data
Command (? for help): w
Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING
MBR PARTITIONS!! THIS PROGRAM IS BETA QUALITY AT BEST. IF YOU LOSE ALL YOUR
DATA, YOU HAVE ONLY YOURSELF TO BLAME IF YOU ANSWER 'Y' BELOW!
Do you want to proceed, possibly destroying your data? (Y/N) y
OK; writing new GPT partition table.
Warning: The kernel is still using the old partition table.
The new table will be used at the next reboot.
The operation has completed successfully.
goletsa-minipc:/mnt/disk3/alex/WD# fdisk -l /dev/loop0
WARNING: GPT (GUID Partition Table) detected on '/dev/loop0'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/loop0: 1073 MB, 1073741824 bytes
256 heads, 63 sectors/track, 130 cylinders
Units = cylinders of 16128 * 512 = 8257536 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Device Boot Start End Blocks Id System
/dev/loop0p1 1 131 1048575+ ee GPT
Partition 1 has different physical/logical beginnings (non-Linux?):
phys=(0, 0, 1) logical=(0, 0, 2)
Partition 1 has different physical/logical endings:
phys=(1023, 255, 63) logical=(130, 8, 8)
Форматирование в reiserfs:
# mkreiserfs /dev/loop1
mkreiserfs 3.6.21 (2009 www.namesys.com)
A pair of credits:
Lycos Europe (www.lycos-europe.com) had a support contract with us that
consistently came in just when we would otherwise have missed payroll, and that
they kept doubling every year. Much thanks to them.
Vladimir Saveliev started as the most junior programmer on the team, and became
the lead programmer. He is now an experienced highly productive programmer. He
wrote the extent handling code for Reiser4, plus parts of the balancing code
and file write and file read.
Guessing about desired format.. Kernel 2.6.36-minipc-1 is running.
Format 3.6 with standard journal
Count of blocks on the device: 262144
Number of blocks consumed by mkreiserfs formatting process: 8219
Blocksize: 4096
Hash function used to sort names: "r5"
Journal Size 8193 blocks (first block 18)
Journal Max transaction length 1024
inode generation number: 0
UUID: 20837a35-8b4b-4af3-95e1-1d376d7682b4
ATTENTION: YOU SHOULD REBOOT AFTER FDISK!
ALL DATA WILL BE LOST ON '/dev/loop1'!
Continue (y/n):y
Initializing journal - 0%....20%....40%....60%....80%....100%
Syncing..ok
ReiserFS is successfully created on /dev/loop1.
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