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  | :  OO (94/04/08)
  e-mail : kojima@komae.denken.or.jp
           PAF02316@niftyserve.or.jp
           pcs33766@asciinet.or.jp
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                         EXT2 t@CVXe FAQ
                                   93/10/18

  ̃t@C ext2 t@CVXeɊւāA΂΂˂鎿(FAQ)
  ɑ΂铚܂Ƃ߂̂łB

  Q: [gEt@CVXe鎞 ext2 g񂾂ǁALinux 
     u[g邽тɁA

          MINIX-fs magic match failed
          EXT-fs: magic match failed

     ƂbZ[Wo܂B Linux [gt@CVXeF
     ĂȂƂƂł傤 ?

  A: BLinux ̓u[gɂ̈قȂt@CVXe[g
     t@CVXeƂă}Eg悤Ǝ݂܂B

       - ܂ŏ minix ̃t@CVXeŎĂ݂āA[gt@CV
         Xe minix łȂ΍ŏ̃G[bZ[Wo܂B
       - ɁAextended file system āAĂ 2 ߂̃G[
         bZ[Wo܂B

     Vo[W̃J[lł́Asilent flag gĂ warning
     oȂ悤ɂĂ܂BJ[lo[WAbv΂̃b
     Z[W͏oȂȂł傤B

  Q: ̂悤ȃG[bZ[Wł܂B

       [EXT II FS 0.2c, 93/03/06, bs=1024, fs=1024, gc=##, bpg=##, ipg=####]
       EXT2-fs warning: mounting unchecked file system

     t@CVXeɖ肪̂ł傤 ?

  A: vłB ext 2 t@CVXe̓fBXN valid flag
     Ă܂B̃tÓA}Eg 0 ɁAA}Eg
      1 ɂȂ܂Bvalid flag  e2fsck Ń`FbNAt@CVX
     e`FbNKv邩mF܂(tO 1 Ȃ e2fsck
     ́At@CVXe͕ύXĂȂƍlāA`FbN܂)

     [gt@CVXe͗BA}EgȂt@CVXeȂ̂ŁA
     valid flag ͏ 0 ɃZbgĂ܂Bu[gɃJ[l[gt@
     CVXe}EgA valid flag `FbN 0 Ȃ̂ŁA
     xbZ[Wo͂킯łB

     [gt@CVXeɊւ邱 warning ͖ĂvłB
     Ô߁Ae2fsck Ă݂̂܂B

     Linux 0.99pl10 ȏł́A[gt@CVXe read only [hŃ}
     Eg邱ƂŁAumount ł悤ɂȂĂ܂Bt@CVXe
     read only [hŃ}Eg valid flag ͕ύX܂B̕@
     p邽߂ɂ́Abootutils package gKv܂B

  Q: mke2fs  ext2 t@CVXe낤Ƃ'Out of memory' Ƃ
     Ďɂ܂Bǂ ?

  A:  mke2fs gɂ܂Bmke2fs  inode ̃e[ũRs[
    Ɏ̂ŁAt@CVXêɑ傫ȃKvłB
    ̖͍ŋ߂̃o[W(0.2c+ ȏ)ł͏CĂ܂B

    łAmke2fs  e2fsck o[WAbvΉł傤B

  Q: mke2fs  ext2 t@CVXe낤ƂAȉ̂悤ȃbZ[
     WoĎɂ܂B

          mke2fs: Unable to find a block for the block bitmap
       邢:
          mke2fs: Unable to find a block for the inode bitmap
       邢:
          mke2fs: Unable to find a block for the inode table

    Ȃ̂ł傤 ?

  A: ext2 t@CVXe͕ubÑO[v琬藧Ă܂B
     ꂼ̃O[vƂ super block  fs descriptors, 2  bitmap
     blocks, inode table ̈ꕔ݂܂Bꂼ̃O[v 8192 ub
     N܂B

     t@CVXe鎞Amke2fs ̓O[v߂邽߂ɁA^ꂽ
     ubN̑ 8192 ŊAꂼ̃O[vƂɃRg[
     Ƃ܂BƂǂAŌ̃O[vȂ肷Ă
     ݂ȂǍ mke2fs ɂ܂

     ̃oO 0.3d ȍ~ł͏CĂ̂ŁAo[WAbvΉ
     ł傤B

  Q: df ƂAext2 t@CVXe 100% ȏɂȂĂ̂łA
     vł傤 ?

  A: vłB

     ext2 t@CVXe͂ꂼX[p[[U[pɗ\񂳂ꂽubN
     Ă܂(Ȃ킿Aʃ[U[ɂ͎gȂł)Bdf 
     statfs()̃VXeR[pAȉ̏܂񂾍\̂炢܂B

       - f_blocks : AP[gꂽSubN
       - f_bfree  : t[ubN̑
       - f_bavail : ʃ[U[gp\ȃt[ubN

     df  f_blocks  f_bavail ŊĎgpvZĂ܂Bext2 t@C
     VXeŃ[gقƂǂ̃ubNgpĂ΁Af_blocks 
     f_bavail zāAgp 100 % 𒴂邱ƂɂȂ܂B

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  OOijd͒ q[}t@N^[Z^[
  kojima@komae.denken.or.jp, Tel:(03)-3480-2111(ex.579), FAX:(03)-3430-5779
  PAF02316@niftyserve, pcs33766@Ascii-Net
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